Jobo MCP Server

Jobo Job Search MCP Server

Remote MCP server exposing Jobo's live job index — millions of listings collected from employer career sites and 100+ applicant tracking systems — to LLM clients.

Full client setup (Claude, ChatGPT, Cursor, Codex CLI) and the tool reference: jobo.world/docs/connectors/mcp.

• Transport: Streamable HTTP, single /mcp endpoint, stateless. Serves MCP spec 2026-07-28 natively and every 2025-era client through the built-in legacy fallback (SDK v2 createMcpHandler, one factory for both eras).
• Auth: OAuth 2.1. This is a Resource Server; the Authorization Server is the Jobo API. Clients log in with their Jobo account — no API key copy-paste. Required scope: jobs:read.

Self-hosting

The hosted deployment is https://jobs-mcp.jobo.world. To run your own copy instead:

npx jobo-job-search-mcp

Starts the Streamable HTTP server on $PORT (default 3002); point your client at http://localhost:3002/mcp. This changes where the gateway runs, not its auth model — it's still an OAuth resource server gated on Jobo account sign-in, since the upstream API validates every request against the Authorization Server regardless of which copy of the gateway forwarded it. Set MCP_RESOURCE_URL to match whatever host you actually serve it from — see Configuration below.

Why this is a separate server

Jobo.Enterprise/Jobo.Enterprise.Mcp was deliberately re-scoped to analytics-only in v4, which removed search_jobs, get_job_details, list_filters, search and fetch. Adding job tools back there would undo that decision, so this is a second server against the same External API.

The /api/mcp/jobs/* endpoints were never removed — McpController.cs still serves them, and its own comment notes the GET search is "convenient for the canonical ChatGPT search(query) tool". This server is a thin OAuth-forwarding gateway in front of endpoints that were built for it.

The immediate payoff: search + fetch restore Deep Research compatibility. Without that canonical pair a server cannot be used as a ChatGPT Deep Research connector at all.

Tools

search/fetch deliberately take the minimum arguments the contract allows. Anything with structure should go through search_jobs, where filters are real parameters rather than hopeful free text.

What fetch returns

text is self-contained prose, because Deep Research reads it and never opens the URL. It is built from the AI-extracted fields (responsibilities, qualifications, benefits, compensation) in preference to the raw employer HTML, which is boilerplate-heavy and frequently longer than it is useful. The raw description is available via get_job_details with include_description: true.

Auth model

The server is a gateway, not the cryptographic authority. The C# External API validates the JWT with OpenIddict against the same issuer, audience and jobs:read scope; verifying the signature a second time here would only let the two validators drift. So this does the minimum a gateway must:

1. Require a Bearer token; absent → 401 with the resource-metadata challenge, starting the OAuth flow.
2. Cheaply reject an already-expired token (decode exp, no signature check) so long-lived clients refresh rather than forwarding a dead token.
3. Attach the raw current-request token to req.auth, so every tool call forwards the token the client just sent — never one captured at session-initialize.

Stateless by design

No session map. That map lived in process memory, so every restart or redeploy stranded clients with "No active session", and it pinned the deployment to a single replica. Redis cannot back it either: the value is a live transport object holding open streams. Each POST is served by a fresh server and transport with no mcp-session-id issued.

Configuration

Development

npm install && npm run build && npm test

npm run dev

Verifying without credentials

node --test dist/format.test.js covers the mapping logic, including that search and fetch return exactly the shapes Deep Research requires. For the wire path, point the server at a stub:

JOBO_API_URL=http://localhost:3098 PORT=3097 MCP_RESOURCE_URL=http://localhost:3097 node dist/index.js

Then tools/list and tools/call over HTTP with any JWT-shaped bearer whose exp is in the future — the gateway forwards it and the stub answers. A real token is only needed against the live API.

Registry listing

Published to the official MCP Registry as world.jobo/job-search (the mcpName in package.json; server.json in this directory is the registry manifest). Publishing is automated: the mcp-v* tag workflow publishes npm first, then pushes server.json to the registry under the DNS-TXT-verified world.jobo/* namespace — see ../RELEASING.md. There is no review queue and aggregators poll roughly hourly. Note the official registry has no per-server web page by design — it is a metadata API for aggregators. The downstream surfaces differ: PulseMCP emits a dofollow link, Glama and mcp.so are nofollow. Manual directory submissions (Claude, ChatGPT, aggregator claims) live in ../MCP-DISTRIBUTION.md.