AtCoder MCP Server for ChatGPT

io.github.ketherworks/atcoder

Search AtCoder problems and fetch public problem statements through MCP.

client:ChatGPT transport:streamable-http tools:4

Install AtCoder MCP Server in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.ksrnyx.top/oj-mcp/atcoder/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs