ChatGPT

send21 for ChatGPT

io.github.send21io/mcp

Crypto pay links and API for people and AI agents. BTC, Lightning, USDC, USDT, EURC, SOL, ETH.

client:ChatGPT transport:streamable-http tools:14

Install send21 in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://send21.io/mcp

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

What ChatGPT can do once it is connected

send21 in other clients

send21 MCP server