Letta Tools API

openapi: 3.1.0
info:
  title: Letta Admin Tools API
  version: 1.0.0
  description: REST API for Letta, the stateful agents platform. Manage agents, memory blocks, archival passages, sources, custom tools, MCP servers, multi-agent groups, runs, and streaming responses. Available as Letta Cloud (managed) at https://api.letta.com/v1 and as the self-hosted open-source server (Apache-2.0) typically run at http://localhost:8283.
  contact:
    name: Letta
    url: https://www.letta.com/
    email: support@letta.com
  license:
    name: Apache-2.0
    url: https://github.com/letta-ai/letta/blob/main/LICENSE
  x-logo:
    url: https://www.letta.com/favicon.ico
servers:
- url: https://api.letta.com
  description: Letta Cloud (managed)
- url: https://app.letta.com
  description: Letta Cloud (app)
- url: http://localhost:8283
  description: Self-hosted Letta server
security:
- bearerAuth: []
tags:
- name: Tools
  description: Register and execute custom tools (sandboxed Python, client-side, MCP).
paths:
  /v1/tools/{tool_id}:
    delete:
      tags:
      - Tools
      summary: Delete Tool
      description: Delete a tool by name
      operationId: delete_tool
      parameters:
      - name: tool_id
        in: path
        required: true
        schema:
          type: string
          minLength: 41
          maxLength: 41
          pattern: ^tool-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the tool in the format 'tool-<uuid4>'
          examples:
          - tool-123e4567-e89b-42d3-8456-426614174000
          title: Tool Id
        description: The ID of the tool in the format 'tool-<uuid4>'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    get:
      tags:
      - Tools
      summary: Retrieve Tool
      description: Get a tool by ID
      operationId: retrieve_tool
      parameters:
      - name: tool_id
        in: path
        required: true
        schema:
          type: string
          minLength: 41
          maxLength: 41
          pattern: ^tool-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the tool in the format 'tool-<uuid4>'
          examples:
          - tool-123e4567-e89b-42d3-8456-426614174000
          title: Tool Id
        description: The ID of the tool in the format 'tool-<uuid4>'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Tool'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    patch:
      tags:
      - Tools
      summary: Modify Tool
      description: Update an existing tool
      operationId: modify_tool
      parameters:
      - name: tool_id
        in: path
        required: true
        schema:
          type: string
          minLength: 41
          maxLength: 41
          pattern: ^tool-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the tool in the format 'tool-<uuid4>'
          examples:
          - tool-123e4567-e89b-42d3-8456-426614174000
          title: Tool Id
        description: The ID of the tool in the format 'tool-<uuid4>'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ToolUpdate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Tool'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/count:
    get:
      tags:
      - Tools
      summary: Count Tools
      description: Get a count of all tools available to agents belonging to the org of the user.
      operationId: count_tools
      parameters:
      - name: name
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Name
      - name: names
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Filter by specific tool names
          title: Names
        description: Filter by specific tool names
      - name: tool_ids
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Filter by specific tool IDs - accepts repeated params or comma-separated values
          title: Tool Ids
        description: Filter by specific tool IDs - accepts repeated params or comma-separated values
      - name: search
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Search tool names (case-insensitive partial match)
          title: Search
        description: Search tool names (case-insensitive partial match)
      - name: tool_types
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Filter by tool type(s) - accepts repeated params or comma-separated values
          title: Tool Types
        description: Filter by tool type(s) - accepts repeated params or comma-separated values
      - name: exclude_tool_types
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Tool type(s) to exclude - accepts repeated params or comma-separated values
          title: Exclude Tool Types
        description: Tool type(s) to exclude - accepts repeated params or comma-separated values
      - name: return_only_letta_tools
        in: query
        required: false
        schema:
          anyOf:
          - type: boolean
          - type: 'null'
          description: Count only tools with tool_type starting with 'letta_'
          default: false
          title: Return Only Letta Tools
        description: Count only tools with tool_type starting with 'letta_'
      - name: exclude_letta_tools
        in: query
        required: false
        schema:
          anyOf:
          - type: boolean
          - type: 'null'
          description: Exclude built-in Letta tools from the count
          default: false
          title: Exclude Letta Tools
        description: Exclude built-in Letta tools from the count
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: integer
                title: Response Count Tools
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/:
    get:
      tags:
      - Tools
      summary: List Tools
      description: Get a list of all tools available to agents.
      operationId: list_tools
      parameters:
      - name: before
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Tool ID cursor for pagination. Returns tools that come before this tool ID in the specified sort order
          title: Before
        description: Tool ID cursor for pagination. Returns tools that come before this tool ID in the specified sort order
      - name: after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Tool ID cursor for pagination. Returns tools that come after this tool ID in the specified sort order
          title: After
        description: Tool ID cursor for pagination. Returns tools that come after this tool ID in the specified sort order
      - name: limit
        in: query
        required: false
        schema:
          anyOf:
          - type: integer
          - type: 'null'
          description: Maximum number of tools to return
          default: 50
          title: Limit
        description: Maximum number of tools to return
      - name: order
        in: query
        required: false
        schema:
          enum:
          - asc
          - desc
          type: string
          description: Sort order for tools by creation time. 'asc' for oldest first, 'desc' for newest first
          default: desc
          title: Order
        description: Sort order for tools by creation time. 'asc' for oldest first, 'desc' for newest first
      - name: order_by
        in: query
        required: false
        schema:
          const: created_at
          type: string
          description: Field to sort by
          default: created_at
          title: Order By
        description: Field to sort by
      - name: name
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Filter by single tool name
          title: Name
        description: Filter by single tool name
      - name: names
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Filter by specific tool names
          title: Names
        description: Filter by specific tool names
      - name: tool_ids
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Filter by specific tool IDs - accepts repeated params or comma-separated values
          title: Tool Ids
        description: Filter by specific tool IDs - accepts repeated params or comma-separated values
      - name: search
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Search tool names (case-insensitive partial match)
          title: Search
        description: Search tool names (case-insensitive partial match)
      - name: tool_types
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Filter by tool type(s) - accepts repeated params or comma-separated values
          title: Tool Types
        description: Filter by tool type(s) - accepts repeated params or comma-separated values
      - name: exclude_tool_types
        in: query
        required: false
        schema:
          anyOf:
          - type: array
            items:
              type: string
          - type: 'null'
          description: Tool type(s) to exclude - accepts repeated params or comma-separated values
          title: Exclude Tool Types
        description: Tool type(s) to exclude - accepts repeated params or comma-separated values
      - name: return_only_letta_tools
        in: query
        required: false
        schema:
          anyOf:
          - type: boolean
          - type: 'null'
          description: Return only tools with tool_type starting with 'letta_'
          default: false
          title: Return Only Letta Tools
        description: Return only tools with tool_type starting with 'letta_'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Tool'
                title: Response List Tools
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    post:
      tags:
      - Tools
      summary: Create Tool
      description: Create a new tool
      operationId: create_tool
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ToolCreate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Tool'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    put:
      tags:
      - Tools
      summary: Upsert Tool
      description: Create or update a tool
      operationId: upsert_tool
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ToolCreate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Tool'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/search:
    post:
      tags:
      - Tools
      summary: Search Tools
      description: 'Search tools using semantic search.


        Requires tool embedding to be enabled (embed_tools=True). Uses vector search,

        full-text search, or hybrid mode to find tools matching the query.


        Returns tools ranked by relevance with their search scores.'
      operationId: search_tools
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ToolSearchRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ToolSearchResult'
                title: Response Search Tools
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/add-base-tools:
    post:
      tags:
      - Tools
      summary: Upsert Base Tools
      description: Upsert base tools
      operationId: add_base_tools
      parameters: []
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Tool'
                title: Response Add Base Tools
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/run:
    post:
      tags:
      - Tools
      summary: Run Tool from Source
      description: Attempt to build a tool from source, then run it on the provided arguments
      operationId: run_tool_from_source
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ToolRunFromSource'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ToolReturnMessage'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers:
    get:
      tags:
      - Tools
      summary: List MCP Servers
      description: Get a list of all configured MCP servers
      operationId: list_mcp_servers
      parameters: []
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  anyOf:
                  - $ref: '#/components/schemas/SSEServerConfig'
                  - $ref: '#/components/schemas/StdioServerConfig'
                  - $ref: '#/components/schemas/StreamableHTTPServerConfig'
                title: Response List Mcp Servers
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    put:
      tags:
      - Tools
      summary: Add MCP Server to Config
      description: Add a new MCP server to the Letta MCP server config
      operationId: add_mcp_server
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              anyOf:
              - $ref: '#/components/schemas/StdioServerConfig'
              - $ref: '#/components/schemas/SSEServerConfig'
              - $ref: '#/components/schemas/StreamableHTTPServerConfig'
              title: Request
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  anyOf:
                  - $ref: '#/components/schemas/StdioServerConfig'
                  - $ref: '#/components/schemas/SSEServerConfig'
                  - $ref: '#/components/schemas/StreamableHTTPServerConfig'
                title: Response Add Mcp Server
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/{mcp_server_name}/tools:
    get:
      tags:
      - Tools
      summary: List MCP Tools by Server
      description: Get a list of all tools for a specific MCP server
      operationId: list_mcp_tools_by_server
      parameters:
      - name: mcp_server_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Server Name
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/MCPTool'
                title: Response List Mcp Tools By Server
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/{mcp_server_name}/resync:
    post:
      tags:
      - Tools
      summary: Resync MCP Server Tools
      description: 'Resync tools for an MCP server by:

        1. Fetching current tools from the MCP server

        2. Deleting tools that no longer exist on the server

        3. Updating schemas for existing tools

        4. Adding new tools from the server


        Returns a summary of changes made.'
      operationId: resync_mcp_server_tools
      parameters:
      - name: mcp_server_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Server Name
      - name: agent_id
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Agent Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/{mcp_server_name}/{mcp_tool_name}:
    post:
      tags:
      - Tools
      summary: Add MCP Tool
      description: Register a new MCP tool as a Letta server by MCP server + tool name
      operationId: add_mcp_tool
      parameters:
      - name: mcp_server_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Server Name
      - name: mcp_tool_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Tool Name
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Tool'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/{mcp_server_name}:
    patch:
      tags:
      - Tools
      summary: Update MCP Server
      description: Update an existing MCP server configuration
      operationId: update_mcp_server
      parameters:
      - name: mcp_server_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Server Name
      requestBody:
        required: true
        content:
          application/json:
            schema:
              anyOf:
              - $ref: '#/components/schemas/letta__schemas__mcp__UpdateStdioMCPServer'
              - $ref: '#/components/schemas/letta__schemas__mcp__UpdateSSEMCPServer'
              - $ref: '#/components/schemas/letta__schemas__mcp__UpdateStreamableHTTPMCPServer'
              title: Request
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                anyOf:
                - $ref: '#/components/schemas/StdioServerConfig'
                - $ref: '#/components/schemas/SSEServerConfig'
                - $ref: '#/components/schemas/StreamableHTTPServerConfig'
                title: Response Update Mcp Server
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    delete:
      tags:
      - Tools
      summary: Delete MCP Server from Config
      description: Delete a MCP server configuration
      operationId: delete_mcp_server
      parameters:
      - name: mcp_server_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Server Name
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  anyOf:
                  - $ref: '#/components/schemas/StdioServerConfig'
                  - $ref: '#/components/schemas/SSEServerConfig'
                  - $ref: '#/components/schemas/StreamableHTTPServerConfig'
                title: Response Delete Mcp Server
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/test:
    post:
      tags:
      - Tools
      summary: Test MCP Server
      description: 'Test connection to an MCP server without adding it.

        Returns the list of available tools if successful.'
      operationId: test_mcp_server
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              anyOf:
              - $ref: '#/components/schemas/StdioServerConfig'
              - $ref: '#/components/schemas/SSEServerConfig'
              - $ref: '#/components/schemas/StreamableHTTPServerConfig'
              title: Request
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/connect:
    post:
      tags:
      - Tools
      summary: Connect MCP Server
      description: 'Connect to an MCP server with support for OAuth via SSE.

        Returns a stream of events handling authorization state and exchange if OAuth is required.'
      operationId: connect_mcp_server
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              anyOf:
              - $ref: '#/components/schemas/StdioServerConfig'
              - $ref: '#/components/schemas/SSEServerConfig'
              - $ref: '#/components/schemas/StreamableHTTPServerConfig'
              title: Request
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema: {}
            text/event-stream:
              description: Server-Sent Events stream
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/servers/{mcp_server_name}/tools/{tool_name}/execute:
    post:
      tags:
      - Tools
      summary: Execute MCP Tool
      description: 'Execute a specific MCP tool from a configured server.

        Returns the tool execution result.'
      operationId: execute_mcp_tool
      parameters:
      - name: mcp_server_name
        in: path
        required: true
        schema:
          type: string
          title: Mcp Server Name
      - name: tool_name
        in: path
        required: true
        schema:
          type: string
          title: Tool Name
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/letta__server__rest_api__routers__v1__tools__ToolExecuteRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/tools/mcp/oauth/callback:
    get:
      tags:
      - Tools
      summary: MCP Oauth Callback
      description: 'Handle OAuth callback for MCP server authentication.

        Session is identified via the state parameter instead of URL path.'
      operationId: mcp_oauth_callback
      parameters:
      - name: code
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: OAuth authorization code
          title: Code
        description: OAuth authorization code
      - name: state
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: OAuth state parameter
          title: State
        description: OAuth state parameter
      - name: error
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: OAuth error
          title: Error
        description: OAuth error
      - name: error_description
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: OAuth error description
          title: Error Description
        description: OAuth error description
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    Tool:
      properties:
        id:
          type: string
          pattern: ^tool-[a-fA-F0-9]{8}
          title: Id
          description: The human-friendly ID of the Tool
          examples:
          - tool-123e4567-e89b-12d3-a456-426614174000
        tool_type:
          $ref: '#/components/schemas/ToolType'
          description: The type of the tool.
          default: custom
        description:
          anyOf:
          - type: string
          - type: 'null'
          title: Description
          description: The description of the tool.
        source_type:
          anyOf:
          - type: string
          - type: 'null'
          title: Source Type
          description: The type of the source code.
        name:
          anyOf:
          - type: string
          - type: 'null'
          title: Name
          description: The name of the function.
        tags:
          items:
            type: string
          type: array
          title: Tags
          description: Metadata tags.
          default: []
        source_code:
          anyOf:
          - type: string
          - type: 'null'
          title: Source Code
          description: The source code of the function.
        json_schema:
          anyOf:
          - additionalProperties: true
            type: object
          - type: 'null'
          title: Json Schema
          description: The JSON schema of the function.
        args_json_schema:
          anyOf:
          - additionalProperties: true
            type: object
          - type: 'null'
          title: Args Json Schema
          description: The args JSON schema of the function.
        return_char_limit:
          type: integer
          maximum: 1000000
          minimum: 1
          title: Return Char Limit
          description: The maximum number of characters in the response.
          default: 50000
        pip_requirements:
          anyOf:
          - items:
              $ref: '#/components/schemas/PipRequirement'
            type: array
          - type: 'null'
          title: Pip Requirements
          description: Optional list of pip packages required by this tool.
        npm_requirements:
          anyOf:
          - items:
              $ref: '#/components/schemas/NpmRequirement'
            type: array
          - type: 'null'
          title: Npm Requirements
          description: Optional list of npm packages required by this tool.
        default_requires_approval:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Default Requires Approval
          description: Default value for whether or not executing this tool requires approval.
        enable_parallel_execution:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Enable Parallel Execution
          description: If set to True, then this tool will potentially be executed concurrently with other tools. Default False.
          default: false
        created_by_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Created By Id
          description: The id of the user that made this Tool.
        last_updated_by_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Last Updated By Id
          description: The id of the user that made this Tool.
        metadata_:
          anyOf:
          - additionalProperties: true
            type: object
          - type: 'null'
          title: Metadata
          description: A dictionary of additional metadata for the tool.
        project_id:
          anyOf

# --- truncated at 32 KB (60 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/letta/refs/heads/main/openapi/letta-tools-api-openapi.yml