MCP servers · Overpass (OpenStreetMap query) · connector · GPT action
Connect ChatGPT to Overpass (OpenStreetMap query)
One line gives ChatGPT your Overpass (OpenStreetMap query) account as tools: 2 endpoints, query, more, called with your own connection. No key in the prompt, a receipt for every call, revoke ChatGPT's access alone any time.
Three steps
- Create a free 0n3 account and connect Overpass (OpenStreetMap query). Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into ChatGPT. Add 0n3 in ChatGPT's settings and sign in once.
- Ask ChatGPT: whoami. Then: "Query in Overpass (OpenStreetMap query)".
Add 0n3 to ChatGPT
- In ChatGPT, open Settings. Click Connectors (it may say Apps). Click Advanced. Turn on Developer mode.
- Click Create. For the name, type 0n3. For the MCP server URL, type https://0n3.app/mcp. For Authentication, pick OAuth.
- Sign in with your 0n3 email and password.
- Start a new chat. Turn on 0n3. Type: "whoami"
You don't need to paste a key. ChatGPT signs in to 0n3 by itself.
The line above carries a placeholder; 0n3.app/install mints a real key named for ChatGPT and fills it in.
What ChatGPT can then do in Overpass (OpenStreetMap query)
Query · Run one Overpass QL query (start it with [out:json][timeout:25];), or read the server's load1
Query
POST /interpreterMore · Everything else this app exposes.1
Status
GET /statusOverpass (OpenStreetMap query) in other AI clients
Claude Code + Overpass (OpenStreetMap query)MCP server + skillClaude (desktop & claude.ai) + Overpass (OpenStreetMap query)connectorGrok Bot (xAI) + Overpass (OpenStreetMap query)custom connectorCodex CLI + Overpass (OpenStreetMap query)MCP serverGemini CLI + Overpass (OpenStreetMap query)MCP serverCursor + Overpass (OpenStreetMap query)MCP serverVS Code (Copilot) + Overpass (OpenStreetMap query)MCP serverWindsurf + Overpass (OpenStreetMap query)MCP server