Langflow

Langflow MCP API

The MCP API from Langflow — 2 operation(s) for mcp.

GitHub OpenAPI

Operations 5

GET /api/v2/mcp/servers Get Servers #
DELETE /api/v2/mcp/servers/{server_name} Delete Server #
GET /api/v2/mcp/servers/{server_name} Get Server Endpoint #
PATCH /api/v2/mcp/servers/{server_name} Update Server Endpoint #
POST /api/v2/mcp/servers/{server_name} Add Server #

Documentation

📖
Documentation
https://docs.langflow.org/api-reference-api-examples
📖
Authentication
https://docs.langflow.org/api-keys-and-authentication
📖
Documentation
https://docs.langflow.org/concepts-flows
📖
Documentation
https://docs.langflow.org/mcp-server
📖
Documentation
https://docs.langflow.org/api-keys-and-authentication

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/openapi/langflow-mcp-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/json-schema/langflow-flow-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/json-schema/langflow-project-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/json-schema/langflow-message-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/json-schema/langflow-user-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/json-schema/langflow-mcp-server-schema.json

Other Resources

🔗
JSONLD
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/json-ld/langflow-context.jsonld
🔗
Vocabulary
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/vocabulary/langflow-vocabulary.yml
🔗
SpectralRuleset
https://raw.githubusercontent.com/api-evangelist/langflow/refs/heads/main/rules/langflow-rules.yml

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OpenAPI Specification

langflow-mcp-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Langflow Base MCP API
  version: 1.9.0
servers:
- url: http://localhost:7860/api
  description: Base URL declared by the provider in apis.yml (roadmap#122).
tags:
- name: MCP
paths:
  /api/v2/mcp/servers:
    get:
      description: Get the list of available servers.
      operationId: get_servers_api_v2_mcp_servers_get
      parameters:
      - in: query
        name: action_count
        required: false
        schema:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Action Count
      responses:
        '200':
          content:
            application/json:
              schema: {}
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
      - OAuth2PasswordBearerCookie: []
      - API key query: []
      - API key header: []
      summary: Get Servers
      tags:
      - MCP
  /api/v2/mcp/servers/{server_name}:
    delete:
      operationId: delete_server_api_v2_mcp_servers__server_name__delete
      parameters:
      - in: path
        name: server_name
        required: true
        schema:
          title: Server Name
          type: string
      responses:
        '200':
          content:
            application/json:
              schema: {}
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
      - OAuth2PasswordBearerCookie: []
      - API key query: []
      - API key header: []
      summary: Delete Server
      tags:
      - MCP
    get:
      description: Get a specific server.
      operationId: get_server_endpoint_api_v2_mcp_servers__server_name__get
      parameters:
      - in: path
        name: server_name
        required: true
        schema:
          title: Server Name
          type: string
      responses:
        '200':
          content:
            application/json:
              schema: {}
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
      - OAuth2PasswordBearerCookie: []
      - API key query: []
      - API key header: []
      summary: Get Server Endpoint
      tags:
      - MCP
    patch:
      operationId: update_server_endpoint_api_v2_mcp_servers__server_name__patch
      parameters:
      - in: path
        name: server_name
        required: true
        schema:
          title: Server Name
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MCPServerConfig'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema: {}
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
      - OAuth2PasswordBearerCookie: []
      - API key query: []
      - API key header: []
      summary: Update Server Endpoint
      tags:
      - MCP
    post:
      operationId: add_server_api_v2_mcp_servers__server_name__post
      parameters:
      - in: path
        name: server_name
        required: true
        schema:
          title: Server Name
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MCPServerConfig'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema: {}
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
      - OAuth2PasswordBearerCookie: []
      - API key query: []
      - API key header: []
      summary: Add Server
      tags:
      - MCP
components:
  schemas:
    ValidationError:
      properties:
        ctx:
          title: Context
          type: object
        input:
          title: Input
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          title: Location
          type: array
        msg:
          title: Message
          type: string
        type:
          title: Error Type
          type: string
      required:
      - loc
      - msg
      - type
      title: ValidationError
      type: object
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          title: Detail
          type: array
      title: HTTPValidationError
      type: object
    MCPServerConfig:
      additionalProperties: true
      description: Pydantic model for MCP server configuration.
      properties:
        args:
          anyOf:
          - items:
              type: string
            type: array
          - type: 'null'
          title: Args
        command:
          anyOf:
          - type: string
          - type: 'null'
          title: Command
        env:
          anyOf:
          - additionalProperties:
              type: string
            type: object
          - type: 'null'
          title: Env
        headers:
          anyOf:
          - additionalProperties:
              type: string
            type: object
          - type: 'null'
          title: Headers
        url:
          anyOf:
          - type: string
          - type: 'null'
          title: Url
      title: MCPServerConfig
      type: object
  securitySchemes:
    API_key_header:
      in: header
      name: x-api-key
      type: apiKey
    API_key_query:
      in: query
      name: x-api-key
      type: apiKey
    OAuth2PasswordBearerCookie:
      flows:
        password:
          scopes: {}
          tokenUrl: api/v1/login
      type: oauth2