mcp

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Versions in this module

v1

v1.5.0

Mar 31, 2026

v1.5.0-pre.1

Mar 31, 2026

v1.4.1

Mar 13, 2026

Changes in this version

type StreamableHTTPOptions

+ CrossOriginProtection *http.CrossOriginProtection

v1.4.0

Feb 27, 2026 GO-2026-4770 +1 more

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ var ErrSessionMissing = errors.New("session not found")

type ClientCapabilities

+ Extensions map[string]any

+ func (c *ClientCapabilities) AddExtension(name string, settings map[string]any)

type ClientOptions

+ CreateMessageWithToolsHandler func(context.Context, *CreateMessageWithToolsRequest) (*CreateMessageWithToolsResult, error)

+ type CreateMessageWithToolsParams struct

+ IncludeContext string

+ MaxTokens int64

+ Messages []*SamplingMessageV2

+ Metadata any

+ ModelPreferences *ModelPreferences

+ StopSequences []string

+ SystemPrompt string

+ Temperature float64

+ ToolChoice *ToolChoice

+ Tools []*Tool

+ func (x *CreateMessageWithToolsParams) GetProgressToken() any

+ func (x *CreateMessageWithToolsParams) SetProgressToken(t any)

+ type CreateMessageWithToolsRequest = ClientRequest[*CreateMessageWithToolsParams]

+ type CreateMessageWithToolsResult struct

+ Content []Content

+ Model string

+ Role Role

+ StopReason string

+ func (r *CreateMessageWithToolsResult) MarshalJSON() ([]byte, error)

+ func (r *CreateMessageWithToolsResult) UnmarshalJSON(data []byte) error

type SamplingCapabilities

+ Context *SamplingContextCapabilities

+ Tools *SamplingToolsCapabilities

+ type SamplingContextCapabilities struct

+ type SamplingMessageV2 struct

+ Content []Content

+ Role Role

+ func (m *SamplingMessageV2) MarshalJSON() ([]byte, error)

+ func (m *SamplingMessageV2) UnmarshalJSON(data []byte) error

+ type SamplingToolsCapabilities struct

type ServerCapabilities

+ Extensions map[string]any

+ func (c *ServerCapabilities) AddExtension(name string, settings map[string]any)

type ServerSession

+ func (ss *ServerSession) CreateMessageWithTools(ctx context.Context, params *CreateMessageWithToolsParams) (*CreateMessageWithToolsResult, error)

type StreamableClientTransport

+ OAuthHandler auth.OAuthHandler

type StreamableHTTPOptions

+ DisableLocalhostProtection bool

+ type ToolChoice struct

+ Mode string

+ type ToolResultContent struct

+ Content []Content

+ IsError bool

+ Meta Meta

+ StructuredContent any

+ ToolUseID string

+ func (c *ToolResultContent) MarshalJSON() ([]byte, error)

+ type ToolUseContent struct

+ ID string

+ Input map[string]any

+ Meta Meta

+ Name string

+ func (c *ToolUseContent) MarshalJSON() ([]byte, error)

v1.3.1

Feb 18, 2026 GO-2026-4770 +1 more

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v1.3.0

Jan 25, 2026 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

type CallToolResult

+ func (r *CallToolResult) GetError() error

+ func (r *CallToolResult) SetError(err error)

type ClientOptions

+ Logger *slog.Logger

+ type SchemaCache struct

+ func NewSchemaCache() *SchemaCache

type ServerOptions

+ SchemaCache *SchemaCache

type StreamableClientTransport

+ DisableStandaloneSSE bool

v1.3.0-pre.1

Jan 25, 2026 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v1.2.0

Dec 19, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ const CodeURLElicitationRequired

+ func URLElicitationRequiredError(elicitations []*ElicitParams) error

type ClientCapabilities

+ RootsV2 *RootCapabilities

type ClientOptions

+ Capabilities *ClientCapabilities

+ ElicitationCompleteHandler func(context.Context, *ElicitationCompleteNotificationRequest)

+ type CloseSSEStreamArgs struct

+ RetryAfter time.Duration

type ElicitParams

+ ElicitationID string

+ Mode string

+ URL string

type ElicitationCapabilities

+ Form *FormElicitationCapabilities

+ URL *URLElicitationCapabilities

+ type ElicitationCompleteNotificationRequest = ClientRequest[*ElicitationCompleteParams]

+ type ElicitationCompleteParams struct

+ ElicitationID string

type Event

+ Retry string

+ type FormElicitationCapabilities struct

+ type Icon struct

+ MIMEType string

+ Sizes []string

+ Source string

+ Theme IconTheme

+ type IconTheme string

+ const IconThemeDark

+ const IconThemeLight

type Implementation

+ Icons []Icon

+ WebsiteURL string

type Prompt

+ Icons []Icon

type RequestExtra

+ CloseSSEStream func(CloseSSEStreamArgs)

type Resource

+ Icons []Icon

type ResourceLink

+ Icons []Icon

type ResourceTemplate

+ Icons []Icon

+ type RootCapabilities struct

+ ListChanged bool

type ServerOptions

+ Capabilities *ServerCapabilities

type Tool

+ Icons []Icon

+ type URLElicitationCapabilities struct

v1.2.0-pre.2

Dec 19, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v1.2.0-pre.1

Dec 12, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v1.1.0

Oct 29, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ type IOTransport struct

+ Reader io.ReadCloser

+ Writer io.WriteCloser

+ func (t *IOTransport) Connect(context.Context) (Connection, error)

type ServerOptions

+ Logger *slog.Logger

type StreamableHTTPOptions

+ EventStore EventStore

+ Logger *slog.Logger

+ SessionTimeout time.Duration

v1.1.0-pre.2

Oct 29, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v1.1.0-pre.1

Oct 23, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v1.0.0

Sep 30, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v0

v0.8.0

Sep 26, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v0.7.0

Sep 24, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

v0.6.0

Sep 19, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ type SSEOptions struct

type ServerOptions

+ GetSessionID func() string

v0.5.0

Sep 12, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

type CommandTransport

+ TerminateDuration time.Duration

v0.4.0

Sep 5, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ type CallToolParamsRaw struct

+ Arguments json.RawMessage

+ Name string

+ func (x *CallToolParamsRaw) GetProgressToken() any

+ func (x *CallToolParamsRaw) SetProgressToken(t any)

type StreamableHTTPOptions

+ JSONResponse bool

v0.3.1

Aug 29, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

type EventStore

+ Open func(_ context.Context, sessionID string, streamID StreamID) error

type MemoryEventStore

+ func (s *MemoryEventStore) Open(_ context.Context, sessionID string, streamID StreamID) error

v0.3.0

Aug 22, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ const CodeInvalidParams

+ var ErrEventsPurged = errors.New("data purged")

+ func ToolFor[In, Out any](t *Tool, h ToolHandlerFor[In, Out]) (*Tool, ToolHandler)

type CallToolParams

+ Arguments any

+ Name string

+ func (c *CallToolParams) UnmarshalJSON(data []byte) error

+ func (x *CallToolParams) GetProgressToken() any

+ func (x *CallToolParams) SetProgressToken(t any)

+ type CallToolRequest = ServerRequest[*CallToolParams]

type CallToolResult

+ Content []Content

+ IsError bool

+ StructuredContent any

+ func (x *CallToolResult) UnmarshalJSON(data []byte) error

type ClientOptions

+ ElicitationHandler func(context.Context, *ElicitRequest) (*ElicitResult, error)

+ ResourceUpdatedHandler func(context.Context, *ResourceUpdatedNotificationRequest)

+ type ClientRequest struct

+ Params P

+ Session *ClientSession

+ func (r *ClientRequest[P]) GetExtra() *RequestExtra

+ func (r *ClientRequest[P]) GetParams() Params

+ func (r *ClientRequest[P]) GetSession() Session

type ClientSession

+ func (cs *ClientSession) InitializeResult() *InitializeResult

+ func (cs *ClientSession) SetLoggingLevel(ctx context.Context, params *SetLoggingLevelParams) error

+ func (cs *ClientSession) Subscribe(ctx context.Context, params *SubscribeParams) error

+ func (cs *ClientSession) Unsubscribe(ctx context.Context, params *UnsubscribeParams) error

+ type ClientSessionOptions struct

type CommandTransport

+ Command *exec.Cmd

+ type CompleteRequest = ServerRequest[*CompleteParams]

+ type CompletionCapabilities struct

+ type CreateMessageRequest = ClientRequest[*CreateMessageParams]

type CreateMessageResult

+ func (r *CreateMessageResult) UnmarshalJSON(data []byte) error

+ type ElicitParams struct

+ Message string

+ RequestedSchema *jsonschema.Schema

+ func (x *ElicitParams) GetProgressToken() any

+ func (x *ElicitParams) SetProgressToken(t any)

+ type ElicitRequest = ClientRequest[*ElicitParams]

+ type ElicitResult struct

+ Action string

+ Content map[string]any

+ type Event struct

+ Data []byte

+ ID string

+ Name string

+ func (e Event) Empty() bool

+ type EventStore interface

+ After func(_ context.Context, sessionID string, _ StreamID, index int) iter.Seq2[[]byte, error]

+ Append func(_ context.Context, sessionID string, _ StreamID, data []byte) error

+ SessionClosed func(_ context.Context, sessionID string) error

+ type GetPromptRequest = ServerRequest[*GetPromptParams]

+ type InitializeRequest = ClientRequest[*InitializeParams]

+ type InitializedRequest = ServerRequest[*InitializedParams]

+ type ListPromptsRequest = ServerRequest[*ListPromptsParams]

+ type ListResourceTemplatesRequest = ServerRequest[*ListResourceTemplatesParams]

+ type ListResourcesRequest = ServerRequest[*ListResourcesParams]

+ type ListRootsRequest = ClientRequest[*ListRootsParams]

+ type ListToolsRequest = ServerRequest[*ListToolsParams]

+ type LoggingCapabilities struct

+ type LoggingMessageRequest = ClientRequest[*LoggingMessageParams]

type LoggingTransport

+ Transport Transport

+ Writer io.Writer

+ type MemoryEventStore struct

+ func NewMemoryEventStore(opts *MemoryEventStoreOptions) *MemoryEventStore

+ func (s *MemoryEventStore) After(_ context.Context, sessionID string, streamID StreamID, index int) iter.Seq2[[]byte, error]

+ func (s *MemoryEventStore) Append(_ context.Context, sessionID string, streamID StreamID, data []byte) error

+ func (s *MemoryEventStore) MaxBytes() int

+ func (s *MemoryEventStore) SessionClosed(_ context.Context, sessionID string) error

+ func (s *MemoryEventStore) SetMaxBytes(n int)

+ type MemoryEventStoreOptions struct

+ type ProgressNotificationClientRequest = ClientRequest[*ProgressNotificationParams]

+ type ProgressNotificationServerRequest = ServerRequest[*ProgressNotificationParams]

+ type PromptCapabilities struct

+ ListChanged bool

+ type PromptListChangedRequest = ClientRequest[*PromptListChangedParams]

+ type ReadResourceRequest = ServerRequest[*ReadResourceParams]

+ type Request interface

+ GetExtra func() *RequestExtra

+ GetParams func() Params

+ GetSession func() Session

+ type RequestExtra struct

+ Header http.Header

+ TokenInfo *auth.TokenInfo

+ type ResourceCapabilities struct

+ ListChanged bool

+ Subscribe bool

+ type ResourceListChangedRequest = ClientRequest[*ResourceListChangedParams]

+ type ResourceUpdatedNotificationParams struct

+ URI string

+ type ResourceUpdatedNotificationRequest = ClientRequest[*ResourceUpdatedNotificationParams]

+ type RootsListChangedRequest = ServerRequest[*RootsListChangedParams]

type SSEClientTransport

+ Endpoint string

+ HTTPClient *http.Client

type SSEServerTransport

+ Endpoint string

+ Response http.ResponseWriter

type Server

+ func (s *Server) ResourceUpdated(ctx context.Context, params *ResourceUpdatedNotificationParams) error

+ type ServerCapabilities struct

+ Completions *CompletionCapabilities

+ Experimental map[string]any

+ Logging *LoggingCapabilities

+ Prompts *PromptCapabilities

+ Resources *ResourceCapabilities

+ Tools *ToolCapabilities

type ServerOptions

+ HasPrompts bool

+ HasResources bool

+ HasTools bool

+ SubscribeHandler func(context.Context, *SubscribeRequest) error

+ UnsubscribeHandler func(context.Context, *UnsubscribeRequest) error

+ type ServerRequest struct

+ Extra *RequestExtra

+ Params P

+ Session *ServerSession

+ func (r *ServerRequest[P]) GetExtra() *RequestExtra

+ func (r *ServerRequest[P]) GetParams() Params

+ func (r *ServerRequest[P]) GetSession() Session

type ServerSession

+ func (ss *ServerSession) Elicit(ctx context.Context, params *ElicitParams) (*ElicitResult, error)

+ func (ss *ServerSession) InitializeParams() *InitializeParams

+ type ServerSessionOptions struct

+ State *ServerSessionState

+ type ServerSessionState struct

+ InitializeParams *InitializeParams

+ InitializedParams *InitializedParams

+ LogLevel LoggingLevel

+ type SetLoggingLevelParams struct

+ Level LoggingLevel

+ func (x *SetLoggingLevelParams) GetProgressToken() any

+ func (x *SetLoggingLevelParams) SetProgressToken(t any)

+ type StreamID string

type StreamableClientTransport

+ Endpoint string

+ HTTPClient *http.Client

+ MaxRetries int

type StreamableClientTransportOptions

+ MaxRetries int

type StreamableHTTPOptions

+ GetSessionID func() string

+ Stateless bool

type StreamableServerTransport

+ EventStore EventStore

+ Stateless bool

+ type StreamableServerTransportOptions struct

+ EventStore EventStore

+ type SubscribeParams struct

+ URI string

+ type SubscribeRequest = ServerRequest[*SubscribeParams]

+ type ToolCapabilities struct

+ ListChanged bool

+ type ToolListChangedRequest = ClientRequest[*ToolListChangedParams]

+ type UnsubscribeParams struct

+ URI string

+ type UnsubscribeRequest = ServerRequest[*UnsubscribeParams]

v0.2.0

Jul 11, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ func AddTool[In, Out any](s *Server, t *Tool, h ToolHandlerFor[In, Out])

+ type Implementation struct

+ Name string

+ Title string

+ Version string

type Server

+ func (s *Server) AddPrompt(p *Prompt, h PromptHandler)

+ func (s *Server) AddResource(r *Resource, h ResourceHandler)

+ func (s *Server) AddResourceTemplate(t *ResourceTemplate, h ResourceHandler)

+ func (s *Server) AddTool(t *Tool, h ToolHandler)

v0.1.0

Jul 1, 2025 GO-2026-4569 +2 more

GO-2026-4569: MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity in github.com/modelcontextprotocol/go-sdk

GO-2026-4770: Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

GO-2026-4773: Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk

Changes in this version

+ const CodeResourceNotFound

+ const CodeUnsupportedMethod

+ const DefaultPageSize

+ const LevelAlert

+ const LevelCritical

+ const LevelDebug

+ const LevelEmergency

+ const LevelError

+ const LevelInfo

+ const LevelNotice

+ const LevelWarning

+ var ErrConnectionClosed = errors.New("connection closed")

+ func NewInMemoryTransports() (*InMemoryTransport, *InMemoryTransport)

+ func ResourceNotFoundError(uri string) error

+ type Annotations struct

+ Audience []Role

+ LastModified string

+ Priority float64

+ type AudioContent struct

+ Annotations *Annotations

+ Data []byte

+ MIMEType string

+ Meta Meta

+ func (c AudioContent) MarshalJSON() ([]byte, error)

+ type CallToolParams = CallToolParamsFor[any]

+ type CallToolParamsFor struct

+ Arguments In

+ Name string

+ func (x *CallToolParamsFor[Out]) GetProgressToken() any

+ func (x *CallToolParamsFor[Out]) SetProgressToken(t any)

+ type CallToolResult = CallToolResultFor[any]

+ type CallToolResultFor struct

+ Content []Content

+ IsError bool

+ StructuredContent Out

+ func (x *CallToolResultFor[Out]) UnmarshalJSON(data []byte) error

+ type CancelledParams struct

+ Reason string

+ RequestID any

+ func (x *CancelledParams) GetProgressToken() any

+ func (x *CancelledParams) SetProgressToken(t any)

+ type Client struct

+ func NewClient(name, version string, opts *ClientOptions) *Client

+ func (c *Client) AddReceivingMiddleware(middleware ...Middleware[*ClientSession])

+ func (c *Client) AddRoots(roots ...*Root)

+ func (c *Client) AddSendingMiddleware(middleware ...Middleware[*ClientSession])

+ func (c *Client) Connect(ctx context.Context, t Transport) (cs *ClientSession, err error)

+ func (c *Client) RemoveRoots(uris ...string)

+ type ClientCapabilities struct

+ Elicitation *ElicitationCapabilities

+ Experimental map[string]struct{}

+ Roots struct{ ... }

+ Sampling *SamplingCapabilities

+ type ClientOptions struct

+ CreateMessageHandler func(context.Context, *ClientSession, *CreateMessageParams) (*CreateMessageResult, error)

+ KeepAlive time.Duration

+ LoggingMessageHandler func(context.Context, *ClientSession, *LoggingMessageParams)

+ ProgressNotificationHandler func(context.Context, *ClientSession, *ProgressNotificationParams)

+ PromptListChangedHandler func(context.Context, *ClientSession, *PromptListChangedParams)

+ ResourceListChangedHandler func(context.Context, *ClientSession, *ResourceListChangedParams)

+ ToolListChangedHandler func(context.Context, *ClientSession, *ToolListChangedParams)

+ type ClientSession struct

+ func (cs *ClientSession) CallTool(ctx context.Context, params *CallToolParams) (*CallToolResult, error)

+ func (cs *ClientSession) Close() error

+ func (cs *ClientSession) Complete(ctx context.Context, params *CompleteParams) (*CompleteResult, error)

+ func (cs *ClientSession) GetPrompt(ctx context.Context, params *GetPromptParams) (*GetPromptResult, error)

+ func (cs *ClientSession) ID() string

+ func (cs *ClientSession) ListPrompts(ctx context.Context, params *ListPromptsParams) (*ListPromptsResult, error)

+ func (cs *ClientSession) ListResourceTemplates(ctx context.Context, params *ListResourceTemplatesParams) (*ListResourceTemplatesResult, error)

+ func (cs *ClientSession) ListResources(ctx context.Context, params *ListResourcesParams) (*ListResourcesResult, error)

+ func (cs *ClientSession) ListTools(ctx context.Context, params *ListToolsParams) (*ListToolsResult, error)

+ func (cs *ClientSession) NotifyProgress(ctx context.Context, params *ProgressNotificationParams) error

+ func (cs *ClientSession) Ping(ctx context.Context, params *PingParams) error

+ func (cs *ClientSession) Prompts(ctx context.Context, params *ListPromptsParams) iter.Seq2[*Prompt, error]

+ func (cs *ClientSession) ReadResource(ctx context.Context, params *ReadResourceParams) (*ReadResourceResult, error)

+ func (cs *ClientSession) ResourceTemplates(ctx context.Context, params *ListResourceTemplatesParams) iter.Seq2[*ResourceTemplate, error]

+ func (cs *ClientSession) Resources(ctx context.Context, params *ListResourcesParams) iter.Seq2[*Resource, error]

+ func (cs *ClientSession) SetLevel(ctx context.Context, params *SetLevelParams) error

+ func (cs *ClientSession) Tools(ctx context.Context, params *ListToolsParams) iter.Seq2[*Tool, error]

+ func (cs *ClientSession) Wait() error

+ type CommandTransport struct

+ func NewCommandTransport(cmd *exec.Cmd) *CommandTransport

+ func (t *CommandTransport) Connect(ctx context.Context) (Connection, error)

+ type CompleteContext struct

+ Arguments map[string]string

+ type CompleteParams struct

+ Argument CompleteParamsArgument

+ Context *CompleteContext

+ Ref *CompleteReference

+ type CompleteParamsArgument struct

+ Name string

+ Value string

+ type CompleteReference struct

+ Name string

+ Type string

+ URI string

+ func (r *CompleteReference) MarshalJSON() ([]byte, error)

+ func (r *CompleteReference) UnmarshalJSON(data []byte) error

+ type CompleteResult struct

+ Completion CompletionResultDetails

+ type CompletionResultDetails struct

+ HasMore bool

+ Total int

+ Values []string

+ type Connection interface

+ Close func() error

+ Read func(context.Context) (JSONRPCMessage, error)

+ SessionID func() string

+ Write func(context.Context, JSONRPCMessage) error

+ type Content interface

+ MarshalJSON func() ([]byte, error)

+ type CreateMessageParams struct

+ IncludeContext string

+ MaxTokens int64

+ Messages []*SamplingMessage

+ Metadata struct{}

+ ModelPreferences *ModelPreferences

+ StopSequences []string

+ SystemPrompt string

+ Temperature float64

+ func (x *CreateMessageParams) GetProgressToken() any

+ func (x *CreateMessageParams) SetProgressToken(t any)

+ type CreateMessageResult struct

+ Content Content

+ Model string

+ Role Role

+ StopReason string

+ type ElicitationCapabilities struct

+ type EmbeddedResource struct

+ Annotations *Annotations

+ Meta Meta

+ Resource *ResourceContents

+ func (c *EmbeddedResource) MarshalJSON() ([]byte, error)

+ type GetPromptParams struct

+ Arguments map[string]string

+ Name string

+ func (x *GetPromptParams) GetProgressToken() any

+ func (x *GetPromptParams) SetProgressToken(t any)

+ type GetPromptResult struct

+ Description string

+ Messages []*PromptMessage

+ type ImageContent struct

+ Annotations *Annotations

+ Data []byte

+ MIMEType string

+ Meta Meta

+ func (c *ImageContent) MarshalJSON() ([]byte, error)

+ type InMemoryTransport struct

+ func (t *InMemoryTransport) Connect(context.Context) (Connection, error)

+ type InitializeParams struct

+ Capabilities *ClientCapabilities

+ ClientInfo *implementation

+ ProtocolVersion string

+ func (x *InitializeParams) GetProgressToken() any

+ func (x *InitializeParams) SetProgressToken(t any)

+ type InitializeResult struct

+ Capabilities *serverCapabilities

+ Instructions string

+ ProtocolVersion string

+ ServerInfo *implementation

+ type InitializedParams struct

+ func (x *InitializedParams) GetProgressToken() any

+ func (x *InitializedParams) SetProgressToken(t any)

+ type JSONRPCID = jsonrpc2.ID

+ type JSONRPCMessage = jsonrpc2.Message

+ type JSONRPCRequest = jsonrpc2.Request

+ type JSONRPCResponse = jsonrpc2.Response

+ type ListPromptsParams struct

+ Cursor string

+ func (x *ListPromptsParams) GetProgressToken() any

+ func (x *ListPromptsParams) SetProgressToken(t any)

+ type ListPromptsResult struct

+ NextCursor string

+ Prompts []*Prompt

+ type ListResourceTemplatesParams struct

+ Cursor string

+ func (x *ListResourceTemplatesParams) GetProgressToken() any

+ func (x *ListResourceTemplatesParams) SetProgressToken(t any)

+ type ListResourceTemplatesResult struct

+ NextCursor string

+ ResourceTemplates []*ResourceTemplate

+ type ListResourcesParams struct

+ Cursor string

+ func (x *ListResourcesParams) GetProgressToken() any

+ func (x *ListResourcesParams) SetProgressToken(t any)

+ type ListResourcesResult struct

+ NextCursor string

+ Resources []*Resource

+ type ListRootsParams struct

+ func (x *ListRootsParams) GetProgressToken() any

+ func (x *ListRootsParams) SetProgressToken(t any)

+ type ListRootsResult struct

+ Roots []*Root

+ type ListToolsParams struct

+ Cursor string

+ func (x *ListToolsParams) GetProgressToken() any

+ func (x *ListToolsParams) SetProgressToken(t any)

+ type ListToolsResult struct

+ NextCursor string

+ Tools []*Tool

+ type LoggingHandler struct

+ func NewLoggingHandler(ss *ServerSession, opts *LoggingHandlerOptions) *LoggingHandler

+ func (h *LoggingHandler) Enabled(ctx context.Context, level slog.Level) bool

+ func (h *LoggingHandler) Handle(ctx context.Context, r slog.Record) error

+ func (h *LoggingHandler) WithAttrs(as []slog.Attr) slog.Handler

+ func (h *LoggingHandler) WithGroup(name string) slog.Handler

+ type LoggingHandlerOptions struct

+ LoggerName string

+ MinInterval time.Duration

+ type LoggingLevel string

+ type LoggingMessageParams struct

+ Data any

+ Level LoggingLevel

+ Logger string

+ func (x *LoggingMessageParams) GetProgressToken() any

+ func (x *LoggingMessageParams) SetProgressToken(t any)

+ type LoggingTransport struct

+ func NewLoggingTransport(delegate Transport, w io.Writer) *LoggingTransport

+ func (t *LoggingTransport) Connect(ctx context.Context) (Connection, error)

+ type Meta map[string]any

+ func (m *Meta) SetMeta(x map[string]any)

+ func (m Meta) GetMeta() map[string]any

+ type MethodHandler func(ctx context.Context, _ S, method string, params Params) (result Result, err error)

+ type Middleware func(MethodHandler[S]) MethodHandler[S]

+ type ModelHint struct

+ Name string

+ type ModelPreferences struct

+ CostPriority float64

+ Hints []*ModelHint

+ IntelligencePriority float64

+ SpeedPriority float64

+ type Params interface

+ GetMeta func() map[string]any

+ SetMeta func(map[string]any)

+ type PingParams struct

+ func (x *PingParams) GetProgressToken() any

+ func (x *PingParams) SetProgressToken(t any)

+ type ProgressNotificationParams struct

+ Message string

+ Progress float64

+ ProgressToken any

+ Total float64

+ type Prompt struct

+ Arguments []*PromptArgument

+ Description string

+ Name string

+ Title string

+ type PromptArgument struct

+ Description string

+ Name string

+ Required bool

+ Title string

+ type PromptHandler func(context.Context, *ServerSession, *GetPromptParams) (*GetPromptResult, error)

+ type PromptListChangedParams struct

+ func (x *PromptListChangedParams) GetProgressToken() any

+ func (x *PromptListChangedParams) SetProgressToken(t any)

+ type PromptMessage struct

+ Content Content

+ Role Role

+ func (m *PromptMessage) UnmarshalJSON(data []byte) error

+ type ReadResourceParams struct

+ URI string

+ func (x *ReadResourceParams) GetProgressToken() any

+ func (x *ReadResourceParams) SetProgressToken(t any)

+ type ReadResourceResult struct

+ Contents []*ResourceContents

+ type RequestParams interface

+ GetProgressToken func() any

+ SetProgressToken func(any)

+ type Resource struct

+ Annotations *Annotations

+ Description string

+ MIMEType string

+ Name string

+ Size int64

+ Title string

+ URI string

+ type ResourceContents struct

+ Blob []byte

+ MIMEType string

+ Meta Meta

+ Text string

+ URI string

+ func (r ResourceContents) MarshalJSON() ([]byte, error)

+ type ResourceHandler func(context.Context, *ServerSession, *ReadResourceParams) (*ReadResourceResult, error)

+ type ResourceLink struct

+ Annotations *Annotations

+ Description string

+ MIMEType string

+ Meta Meta

+ Name string

+ Size *int64

+ Title string

+ URI string

+ func (c *ResourceLink) MarshalJSON() ([]byte, error)

+ type ResourceListChangedParams struct

+ func (x *ResourceListChangedParams) GetProgressToken() any

+ func (x *ResourceListChangedParams) SetProgressToken(t any)

+ type ResourceTemplate struct

+ Annotations *Annotations

+ Description string

+ MIMEType string

+ Name string

+ Title string

+ URITemplate string

+ type Result interface

+ GetMeta func() map[string]any

+ SetMeta func(map[string]any)

+ type Role string

+ type Root struct

+ Name string

+ URI string

+ type RootsListChangedParams struct

+ func (x *RootsListChangedParams) GetProgressToken() any

+ func (x *RootsListChangedParams) SetProgressToken(t any)

+ type SSEClientTransport struct

+ func NewSSEClientTransport(baseURL string, opts *SSEClientTransportOptions) *SSEClientTransport

+ func (c *SSEClientTransport) Connect(ctx context.Context) (Connection, error)

+ type SSEClientTransportOptions struct

+ HTTPClient *http.Client

+ type SSEHandler struct

+ func NewSSEHandler(getServer func(request *http.Request) *Server) *SSEHandler

+ func (h *SSEHandler) ServeHTTP(w http.ResponseWriter, req *http.Request)

+ type SSEServerTransport struct

+ func NewSSEServerTransport(endpoint string, w http.ResponseWriter) *SSEServerTransport

+ func (t *SSEServerTransport) Connect(context.Context) (Connection, error)

+ func (t *SSEServerTransport) ServeHTTP(w http.ResponseWriter, req *http.Request)

+ type SamplingCapabilities struct

+ type SamplingMessage struct

+ Content Content

+ Role Role

+ func (m *SamplingMessage) UnmarshalJSON(data []byte) error

+ type SchemaOption interface

+ func Description(desc string) SchemaOption

+ func Enum(values ...any) SchemaOption

+ func Property(name string, opts ...SchemaOption) SchemaOption

+ func Required(v bool) SchemaOption

+ func Schema(schema *jsonschema.Schema) SchemaOption

+ type Server struct

+ func NewServer(name, version string, opts *ServerOptions) *Server

+ func (s *Server) AddPrompts(prompts ...*ServerPrompt)

+ func (s *Server) AddReceivingMiddleware(middleware ...Middleware[*ServerSession])

+ func (s *Server) AddResourceTemplates(templates ...*ServerResourceTemplate)

+ func (s *Server) AddResources(resources ...*ServerResource)

+ func (s *Server) AddSendingMiddleware(middleware ...Middleware[*ServerSession])

+ func (s *Server) AddTools(tools ...*ServerTool)

+ func (s *Server) Connect(ctx context.Context, t Transport) (*ServerSession, error)

+ func (s *Server) RemovePrompts(names ...string)

+ func (s *Server) RemoveResourceTemplates(uriTemplates ...string)

+ func (s *Server) RemoveResources(uris ...string)

+ func (s *Server) RemoveTools(names ...string)

+ func (s *Server) Run(ctx context.Context, t Transport) error

+ func (s *Server) Sessions() iter.Seq[*ServerSession]

+ type ServerOptions struct

+ CompletionHandler func(context.Context, *ServerSession, *CompleteParams) (*CompleteResult, error)

+ InitializedHandler func(context.Context, *ServerSession, *InitializedParams)

+ Instructions string

+ KeepAlive time.Duration

+ PageSize int

+ ProgressNotificationHandler func(context.Context, *ServerSession, *ProgressNotificationParams)

+ RootsListChangedHandler func(context.Context, *ServerSession, *RootsListChangedParams)

+ type ServerPrompt struct

+ Handler PromptHandler

+ Prompt *Prompt

+ type ServerResource struct

+ Handler ResourceHandler

+ Resource *Resource

+ type ServerResourceTemplate struct

+ Handler ResourceHandler

+ ResourceTemplate *ResourceTemplate

+ func (sr *ServerResourceTemplate) Matches(uri string) bool

+ type ServerSession struct

+ func (ss *ServerSession) Close() error

+ func (ss *ServerSession) CreateMessage(ctx context.Context, params *CreateMessageParams) (*CreateMessageResult, error)

+ func (ss *ServerSession) ID() string

+ func (ss *ServerSession) ListRoots(ctx context.Context, params *ListRootsParams) (*ListRootsResult, error)

+ func (ss *ServerSession) Log(ctx context.Context, params *LoggingMessageParams) error

+ func (ss *ServerSession) NotifyProgress(ctx context.Context, params *ProgressNotificationParams) error

+ func (ss *ServerSession) Ping(ctx context.Context, params *PingParams) error

+ func (ss *ServerSession) Wait() error

+ type ServerTool struct

+ Handler ToolHandler

+ Tool *Tool

+ func NewServerTool[In, Out any](name, description string, handler ToolHandlerFor[In, Out], opts ...ToolOption) *ServerTool

+ type Session interface

+ ID func() string

+ type SetLevelParams struct

+ Level LoggingLevel

+ func (x *SetLevelParams) GetProgressToken() any

+ func (x *SetLevelParams) SetProgressToken(t any)

+ type StdioTransport struct

+ func NewStdioTransport() *StdioTransport

+ func (t *StdioTransport) Connect(context.Context) (Connection, error)

+ type StreamableClientTransport struct

+ func NewStreamableClientTransport(url string, opts *StreamableClientTransportOptions) *StreamableClientTransport

+ func (t *StreamableClientTransport) Connect(ctx context.Context) (Connection, error)

+ type StreamableClientTransportOptions struct

+ HTTPClient *http.Client

+ type StreamableHTTPHandler struct

+ func NewStreamableHTTPHandler(getServer func(*http.Request) *Server, opts *StreamableHTTPOptions) *StreamableHTTPHandler

+ func (h *StreamableHTTPHandler) ServeHTTP(w http.ResponseWriter, req *http.Request)

+ type StreamableHTTPOptions struct

+ type StreamableServerTransport struct

+ func NewStreamableServerTransport(sessionID string) *StreamableServerTransport

+ func (s *StreamableServerTransport) Connect(context.Context) (Connection, error)

+ func (t *StreamableServerTransport) Close() error

+ func (t *StreamableServerTransport) Read(ctx context.Context) (JSONRPCMessage, error)

+ func (t *StreamableServerTransport) ServeHTTP(w http.ResponseWriter, req *http.Request)

+ func (t *StreamableServerTransport) SessionID() string

+ func (t *StreamableServerTransport) Write(ctx context.Context, msg JSONRPCMessage) error

+ type TextContent struct

+ Annotations *Annotations

+ Meta Meta

+ Text string

+ func (c *TextContent) MarshalJSON() ([]byte, error)

+ type Tool struct

+ Annotations *ToolAnnotations

+ Description string

+ InputSchema *jsonschema.Schema

+ Name string

+ OutputSchema *jsonschema.Schema

+ Title string

+ type ToolAnnotations struct

+ DestructiveHint *bool

+ IdempotentHint bool

+ OpenWorldHint *bool

+ ReadOnlyHint bool

+ Title string

+ type ToolHandler func(context.Context, *ServerSession, *CallToolParamsFor[map[string]any]) (*CallToolResult, error)

+ type ToolHandlerFor func(context.Context, *ServerSession, *CallToolParamsFor[In]) (*CallToolResultFor[Out], error)

+ type ToolListChangedParams struct

+ func (x *ToolListChangedParams) GetProgressToken() any

+ func (x *ToolListChangedParams) SetProgressToken(t any)

+ type ToolOption interface

+ func Input(opts ...SchemaOption) ToolOption

+ type Transport interface

+ Connect func(ctx context.Context) (Connection, error)

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