使用说明
title: TianGong LCA MCP README EN docType: guide scope: repo status: active authoritative: false owner: mcp language: en whenToUse:
- when you need English user-facing MCP package setup, Docker usage, local startup, or inspector examples whenToUpdate:
- when English startup commands, Docker usage, package invocation, or user-facing MCP examples change checkPaths:
- README.md
- README_CN.md
- package.json
- Dockerfile
- mcp_config.json
- src/index.ts
- src/index_server.ts
- src/index_server_local.ts
- src/http_app.ts
- src/http_app_local.ts lastReviewedAt: 2026-10-25 lastReviewedCommit: 3ddf1367e7d48fc12cf43e953ef539070c7671fd lastReviewedNote: 'MCP #97: reviewed explicit backend guards and offline/STDIO regression, plus the bounded Zod/body-parser/Vite/Undici security repair. HTTP OAuth, public schemas, SDK, Express, source package version, Docker pin and publication boundaries are preserved.' related:
- AGENTS.md
- .docpact/config.yaml
- DEV_EN.md
- README_CN.md
TianGong-LCA-MCP
TianGong LCA Model Context Protocol (MCP) Server supports STDIO and Streamable Http protocols.
Environment
Copy .env.example and populate its Supabase issuer, publishable key, exact admitted public OAuth client IDs, and allowed browser origins. OAuth authentication requires no Redis, confidential client secret, or server-side session encryption key.
GLAD dataset search tools additionally require a GLAD API key:
GLAD_API_KEY=your-glad-api-key
GLAD_API_BASE_URL=https://www.globallcadataaccess.org/api/v1
Remote OAuth
Remote Streamable HTTP is an OAuth 2.1 protected resource. A compatible MCP host discovers /.well-known/oauth-protected-resource/mcp, follows its Supabase Auth authorization server, opens the user's browser, and completes Authorization Code with S256 PKCE. The user signs in and consents in Next; usernames and passwords are never entered into the AI or MCP host.
Supabase issues the access and rotating refresh tokens directly to the public MCP client. The client stores its refresh token locally and sends the short-lived Supabase ES256 access JWT on every MCP request. The server verifies signature, issuer, audience, expiry, role/session, and exact client_id; Edge/PostgREST then re-verify the same user/client context and enforce RLS capabilities.
Dynamic Client Registration remains disabled. Operators register exact public clients and loopback callbacks in Supabase, then list those UUID client IDs in MCP_OAUTH_ALLOWED_CLIENT_IDS_JSON. Unknown, malformed, expired, Cognito, and password/API-key bearers fail the canonical OAuth challenge without fallback I/O.
The MCP origin exposes no authorization, token, refresh, revoke, callback, registration, demo, or authorization-code display endpoint. Supabase Auth owns those protocol operations and Next owns /oauth/consent.
Starting MCP Server
Client STDIO Server
Set SUPABASE_BASE_URL explicitly to your own backend before using Supabase search tools. There is no default production backend. Missing or invalid backend configuration fails locally before a request; STDIO initialization, tool listing, and local guidance remain available. Database operations also require your backend's SUPABASE_PUBLISHABLE_KEY. Authenticated HTTP continues to require the full OAuth configuration above.
corepack install --global pnpm@11.24.0
pnpm add --global @tiangong-lca/mcp-server
pnpm dlx dotenv-cli -e .env -- tiangong-lca-mcp-stdio
Using Docker
The checked-in Dockerfile installs published @tiangong-lca/mcp-server@0.2.1, rather than building this checkout. Source changes apply to a checkout build; existing npm packages and images need a separately reviewed release to receive them.
# Build the MCP server image locally using Dockerfile
docker build -t linancn/tiangong-lca-mcp-server:0.2.1 .
# Start MCP server using Docker
docker run -d \
--name tiangong-lca-mcp-server \
--publish 9278:9278 \
--env-file .env \
linancn/tiangong-lca-mcp-server:0.2.1
Local Testing
STDIO Server
# Launch the STDIO Server using MCP Inspector
pnpm start
Streamable Http Server
pnpm start:server
Streamable Http Local Server
pnpm start:server-local
The HTTP start commands launch MCP Inspector through a cross-platform Node argv wrapper and inject the development-only Inspector environment without POSIX shell syntax.
