Letta Providers API

openapi: 3.1.0
info:
  title: Letta Admin Providers 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: Providers
  description: Configure LLM provider credentials (OpenAI, Anthropic, Azure, Ollama, etc.).
paths:
  /v1/providers/:
    get:
      tags:
      - Providers
      summary: List Providers
      description: Get a list of all custom providers.
      operationId: list_providers
      parameters:
      - name: before
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Provider ID cursor for pagination. Returns providers that come before this provider ID in the specified sort order
          title: Before
        description: Provider ID cursor for pagination. Returns providers that come before this provider ID in the specified sort order
      - name: after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Provider ID cursor for pagination. Returns providers that come after this provider ID in the specified sort order
          title: After
        description: Provider ID cursor for pagination. Returns providers that come after this provider ID in the specified sort order
      - name: limit
        in: query
        required: false
        schema:
          anyOf:
          - type: integer
          - type: 'null'
          description: Maximum number of providers to return
          default: 50
          title: Limit
        description: Maximum number of providers to return
      - name: order
        in: query
        required: false
        schema:
          enum:
          - asc
          - desc
          type: string
          description: Sort order for providers by creation time. 'asc' for oldest first, 'desc' for newest first
          default: desc
          title: Order
        description: Sort order for providers 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 providers by name
          title: Name
        description: Filter providers by name
      - name: provider_type
        in: query
        required: false
        schema:
          anyOf:
          - $ref: '#/components/schemas/ProviderType'
          - type: 'null'
          description: Filter providers by type
          title: Provider Type
        description: Filter providers by type
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Provider'
                title: Response List Providers
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    post:
      tags:
      - Providers
      summary: Create Provider
      description: Create a new custom provider.
      operationId: create_provider
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ProviderCreate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Provider'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/providers/{provider_id}:
    get:
      tags:
      - Providers
      summary: Retrieve Provider
      description: Get a provider by ID.
      operationId: retrieve_provider
      parameters:
      - name: provider_id
        in: path
        required: true
        schema:
          type: string
          minLength: 45
          maxLength: 45
          pattern: ^provider-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the provider in the format 'provider-<uuid4>'
          examples:
          - provider-123e4567-e89b-42d3-8456-426614174000
          title: Provider Id
        description: The ID of the provider in the format 'provider-<uuid4>'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Provider'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    patch:
      tags:
      - Providers
      summary: Modify Provider
      description: Update an existing custom provider.
      operationId: modify_provider
      parameters:
      - name: provider_id
        in: path
        required: true
        schema:
          type: string
          minLength: 45
          maxLength: 45
          pattern: ^provider-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the provider in the format 'provider-<uuid4>'
          examples:
          - provider-123e4567-e89b-42d3-8456-426614174000
          title: Provider Id
        description: The ID of the provider in the format 'provider-<uuid4>'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ProviderUpdate'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Provider'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    delete:
      tags:
      - Providers
      summary: Delete Provider
      description: Delete an existing custom provider.
      operationId: delete_provider
      parameters:
      - name: provider_id
        in: path
        required: true
        schema:
          type: string
          minLength: 45
          maxLength: 45
          pattern: ^provider-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the provider in the format 'provider-<uuid4>'
          examples:
          - provider-123e4567-e89b-42d3-8456-426614174000
          title: Provider Id
        description: The ID of the provider in the format 'provider-<uuid4>'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/providers/check:
    post:
      tags:
      - Providers
      summary: Check Provider
      description: Verify the API key and additional parameters for a provider.
      operationId: check_provider
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ProviderCheck'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/providers/{provider_id}/check:
    post:
      tags:
      - Providers
      summary: Check Existing Provider
      description: Verify the API key and additional parameters for an existing provider.
      operationId: check_existing_provider
      parameters:
      - name: provider_id
        in: path
        required: true
        schema:
          type: string
          minLength: 45
          maxLength: 45
          pattern: ^provider-[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
          description: The ID of the provider in the format 'provider-<uuid4>'
          examples:
          - provider-123e4567-e89b-42d3-8456-426614174000
          title: Provider Id
        description: The ID of the provider in the format 'provider-<uuid4>'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/providers/{provider_id}/refresh:
    patch:
      tags:
      - Providers
      summary: Refresh Provider Models
      description: 'Refresh models for a BYOK provider by querying the provider''s API.

        Adds new models and removes ones no longer available.'
      operationId: refresh_provider_models
      parameters:
      - name: provider_id
        in: path
        required: true
        schema:
          type: string
          minLength: 45
          maxLength: 45
          pattern: ^provider-[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 provider in the format 'provider-<uuid4>'
          examples:
          - provider-123e4567-e89b-42d3-8456-426614174000
          title: Provider Id
        description: The ID of the provider in the format 'provider-<uuid4>'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Provider'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    ProviderUpdate:
      properties:
        api_key:
          type: string
          title: Api Key
          description: API key or secret key used for requests to the provider.
        access_key:
          anyOf:
          - type: string
          - type: 'null'
          title: Access Key
          description: Access key used for requests to the provider.
        region:
          anyOf:
          - type: string
          - type: 'null'
          title: Region
          description: Region used for requests to the provider.
        base_url:
          anyOf:
          - type: string
          - type: 'null'
          title: Base Url
          description: Base URL used for requests to the provider.
        api_version:
          anyOf:
          - type: string
          - type: 'null'
          title: Api Version
          description: API version used for requests to the provider.
      additionalProperties: false
      type: object
      required:
      - api_key
      title: ProviderUpdate
    ProviderCreate:
      properties:
        name:
          type: string
          title: Name
          description: The name of the provider.
        provider_type:
          $ref: '#/components/schemas/ProviderType'
          description: The type of the provider.
        api_key:
          type: string
          title: Api Key
          description: API key or secret key used for requests to the provider.
        access_key:
          anyOf:
          - type: string
          - type: 'null'
          title: Access Key
          description: Access key used for requests to the provider.
        region:
          anyOf:
          - type: string
          - type: 'null'
          title: Region
          description: Region used for requests to the provider.
        base_url:
          anyOf:
          - type: string
          - type: 'null'
          title: Base Url
          description: Base URL used for requests to the provider.
        api_version:
          anyOf:
          - type: string
          - type: 'null'
          title: Api Version
          description: API version used for requests to the provider.
      additionalProperties: false
      type: object
      required:
      - name
      - provider_type
      - api_key
      title: ProviderCreate
    ProviderCheck:
      properties:
        provider_type:
          $ref: '#/components/schemas/ProviderType'
          description: The type of the provider.
        api_key:
          type: string
          title: Api Key
          description: API key or secret key used for requests to the provider.
        access_key:
          anyOf:
          - type: string
          - type: 'null'
          title: Access Key
          description: Access key used for requests to the provider.
        region:
          anyOf:
          - type: string
          - type: 'null'
          title: Region
          description: Region used for requests to the provider.
        base_url:
          anyOf:
          - type: string
          - type: 'null'
          title: Base Url
          description: Base URL used for requests to the provider.
        api_version:
          anyOf:
          - type: string
          - type: 'null'
          title: Api Version
          description: API version used for requests to the provider.
      type: object
      required:
      - provider_type
      - api_key
      title: ProviderCheck
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    ProviderCategory:
      type: string
      enum:
      - base
      - byok
      title: ProviderCategory
    ProviderType:
      type: string
      enum:
      - anthropic
      - azure
      - baseten
      - bedrock
      - cerebras
      - chatgpt_oauth
      - deepseek
      - fireworks
      - google_ai
      - google_vertex
      - groq
      - hugging-face
      - letta
      - lmstudio_openai
      - minimax
      - mistral
      - ollama
      - openai
      - together
      - vllm
      - sglang
      - openrouter
      - xai
      - zai
      - zai_coding
      title: ProviderType
    Provider:
      properties:
        id:
          anyOf:
          - type: string
          - type: 'null'
          title: Id
          description: The id of the provider, lazily created by the database manager.
        name:
          type: string
          title: Name
          description: The name of the provider
        provider_type:
          $ref: '#/components/schemas/ProviderType'
          description: The type of the provider
        provider_category:
          $ref: '#/components/schemas/ProviderCategory'
          description: The category of the provider (base or byok)
        api_key:
          anyOf:
          - type: string
          - type: 'null'
          title: Api Key
          description: API key or secret key used for requests to the provider.
          deprecated: true
        base_url:
          anyOf:
          - type: string
          - type: 'null'
          title: Base Url
          description: Base URL for the provider.
        access_key:
          anyOf:
          - type: string
          - type: 'null'
          title: Access Key
          description: Access key used for requests to the provider.
          deprecated: true
        region:
          anyOf:
          - type: string
          - type: 'null'
          title: Region
          description: Region used for requests to the provider.
        api_version:
          anyOf:
          - type: string
          - type: 'null'
          title: Api Version
          description: API version used for requests to the provider.
        updated_at:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Updated At
          description: The last update timestamp of the provider.
        last_synced:
          anyOf:
          - type: string
            format: date-time
          - type: 'null'
          title: Last Synced
          description: The last time models were synced for this provider.
        api_key_enc:
          anyOf:
          - type: string
            description: Encrypted secret value (stored as encrypted string)
            nullable: true
          - type: 'null'
          title: Api Key Enc
          description: Encrypted API key as Secret object
        access_key_enc:
          anyOf:
          - type: string
            description: Encrypted secret value (stored as encrypted string)
            nullable: true
          - type: 'null'
          title: Access Key Enc
          description: Encrypted access key as Secret object
      additionalProperties: false
      type: object
      required:
      - name
      - provider_type
      - provider_category
      title: Provider
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer