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aspro-mcp

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Model Context Protocol server that exposes the Aspro.Cloud REST API to LLM clients

aspro-mcp

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A Model Context Protocol server that exposes the Aspro.Cloud REST API to LLM clients (Claude Desktop, Claude Code, etc.). The server ships with the bundled OpenAPI spec, so the model can discover modules, entities and methods on its own and call them safely.

Features

  • Self-describing. The model browses the API via aspro_list_modules → aspro_list_entities → aspro_list_methods → aspro_describe, and only then aspro_calls — no need to memorize endpoints.
  • Substring search across module / entity / method / path / description / tags.
  • Form-urlencoded POSTs by default (Aspro's expected content type), with array and nested-object handling.
  • Path parameter substitution for /get/{id}, /update/{id}, /delete/{id} and friends.
  • Per-tenant config via ASPRO_COMPANY (subdomain) or full ASPRO_BASE_URL.

Install

git clone https://github.com/bssth/aspro-mcp.git
cd aspro-mcp
npm install
npm run build

Requires Node.js ≥ 18.

Configure

Copy the example env file and fill it in:

cp .env.example .env

ASPRO_COMPANY=your_company        # the {company} part of https://{company}.aspro.cloud
ASPRO_API_KEY=your_api_key_here   # passed as ?api_key=... on every request
# ASPRO_BASE_URL=...              # optional; overrides the URL built from ASPRO_COMPANY
# ASPRO_TIMEOUT_MS=30000          # optional; default 30s

Get an API key in your Aspro.Cloud account under Settings → Integrations → API.

Wire it up to a client

Claude Desktop / Claude Code

Add the server to your MCP config:

{
  "mcpServers": {
    "aspro": {
      "command": "node",
      "args": ["/absolute/path/to/aspro-mcp/dist/index.js"]
    }
  }
}

The server reads its .env from the project root regardless of the working directory the client launches it in.

Other MCP clients

Any client that speaks MCP over stdio can run node dist/index.js (or npm start).

Tools exposed

Tool What it does
aspro_list_modules List top-level modules (crm, fin, task, …) with entity / operation counts.
aspro_list_entities List entities inside a module and the methods available on each.
aspro_list_methods List operations (HTTP method + path + short description) for a module, optionally filtered by entity.
aspro_search Substring search across module / entity / method / path / description / tags.
aspro_describe Full schema for one operation: query / path params, body fields with types and descriptions.
aspro_call Execute the call. Returns { status, ok, url, data }.

The recommended flow is search/list_* → describe → call.

Develop

npm run dev      # tsc --watch
npm run build    # tsc
npm run smoke    # offline: exercises the spec indexer and URL builder

The smoke test does not hit the network — it checks that the bundled OpenAPI spec parses, that operations can be described, and that the URL builder produces well-formed URLs.

Project layout

src/
  index.ts    MCP server (tool registration + entry point)
  config.ts   .env loading and validation
  client.ts   HTTP client (URL building, form-urlencoded POSTs, timeouts)
  spec.ts    OpenAPI indexer (modules / entities / methods / search / describe)
  smoke.ts    offline smoke test
spec/
  openapi.json  bundled Aspro.Cloud OpenAPI spec

Security notes

  • The API key is read from the environment and appended to every request as ?api_key=.... Never commit .env.
  • The server has no allowlist — once configured, it can call any endpoint the spec describes (including destructive ones like /delete/{id}). Use a dedicated API key with the minimum necessary permissions.
  • Treat tool output as untrusted: Aspro entities (custom field values, descriptions, etc.) may contain user-supplied content.

Contributing

Issues and PRs welcome. Please run npm run build && npm run smoke before submitting.

License

MIT — see LICENSE.

aspro-mcp is an unofficial third-party connector and is not affiliated with Aspro.Cloud.

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