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Jentic + ChatGPT

Goal — Connect ChatGPT to Jentic's URL-based MCP servers: the hosted directory for natural-language discovery before you've installed anything, and your self-hosted Jentic One as a custom connector for the full search → inspect → execute loop against your registry.

ChatGPT's custom-connector (remote-MCP) feature points at an MCP server over HTTP with an Authorization header — which is exactly the shape both Jentic surfaces expose.

1. Hosted directory search (discovery)

Add the hosted MCP server as a ChatGPT custom connector to search the public Jentic API directory in natural language — "find an operation that creates a GitHub issue" — and get back concrete API operations:

  • URL: https://api.jentic.com/mcp

No token to paste — the hosted server uses OAuth (Dynamic Client Registration), so the connector registers itself and prompts you to authorize on first use.

This surface is for discovery before you've installed anything — which API and which operation solves the task. It reads the public directory and does not touch your registry or credentials.

2. Self-hosted Jentic One (full search → inspect → execute)

For the full loop against your own registry — search your imported operations, inspect a contract, then execute it — connect a self-hosted Jentic One instance whose operator has enabled the hosted /mcp endpoint (server.mcp.enabled: true) as a second custom connector. How it authenticates depends on the deployment:

OAuth (no token to paste) — if the operator also set server.mcp.oauth.enabled: true, the endpoint uses OAuth with Dynamic Client Registration, like the hosted directory. Add the connector with just the URL; ChatGPT registers itself and prompts you to authorize on first connect (the self-registered client waits for operator approval unless auto_approve_clients is on):

  • URL: https://<your-jentic-one-host>/mcp

Manual bearer — with only server.mcp.enabled: true (OAuth off), supply the agent's bearer:

  • URL: https://<your-jentic-one-host>/mcp
  • Authorization: Bearer <agent-api-key>

The agent's bearer comes from registering it against your instance (jentic register). Credentials for the upstream APIs are decrypted only inside your Broker at execution time — they never pass through the ChatGPT session. See the MCP overview and the Quickstart to stand up an instance and register an agent.

If the endpoint is not enabled on your deployment, ChatGPT's URL connector cannot reach it (the control plane answers 404 on /mcp by default). Enable it in the backend config, or drive the instance from a CLI-capable runtime instead — see the MCP overview.

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