Fine Structure

Fine Structure Discovery API

Unauthenticated discovery and health endpoints

Documentation GitHub OpenAPI

Operations 2

GET /api/mcp/manifest Tool discovery manifest (all tool names, descriptions and JSON schemas) #

GET /api/mcp/health Service health check #

Specifications

⚙

OpenAPI

https://artifacts.apis.io/finestructure-ai/openapi/finestructure-ai-discovery-api-openapi.yml

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Fine Structure Discovery API
  version: 1.0.0
  summary: Build, edit, validate and publish complete web applications with AI.
  description: 'Fine Structure is an AI software-building platform: it generates complete applications, runs autonomous AI agent teams, and maintains a business brain over your data.


    Getting started is self-serve: sign up free at https://finestructure.ai (free tier included, no credit card), then create an API/MCP token at https://finestructure.ai/api-keys and pass it as `Authorization: Bearer fse2_mcp_`.


    Every operation below is also available as an MCP tool via the JSON-RPC endpoint POST /api/mcp (Streamable HTTP transport).'
  termsOfService: https://finestructure.ai/terms
  contact:
    name: Fine Structure support
    email: support@finestructure.ai
    url: https://finestructure.ai/contact
servers:
- url: https://finestructure.ai
  description: Production
tags:
- name: Discovery
  description: Unauthenticated discovery and health endpoints
paths:
  /api/mcp/manifest:
    get:
      operationId: get_manifest
      summary: Tool discovery manifest (all tool names, descriptions and JSON schemas)
      tags:
      - Discovery
      security: []
      responses:
        '200':
          description: Manifest with every available tool definition
          content:
            application/json:
              schema:
                type: object
  /api/mcp/health:
    get:
      operationId: health_check
      summary: Service health check
      tags:
      - Discovery
      security: []
      responses:
        '200':
          description: Service is up
          content:
            application/json:
              schema:
                type: object
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: fse2_mcp_<token>
      description: User-created Fine Structure token. Create one self-serve at https://finestructure.ai/api-keys. Tokens are scoped by account, app and permissions.
externalDocs:
  description: Agent integration guide
  url: https://finestructure.ai/api/mcp/docs