Claude Code

send21 for Claude Code

io.github.send21io/mcp

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

client:Claude Code transport:streamable-http tools:14

Install send21 in Claude Code

run in your project directory

claude mcp add --transport http mcp https://send21.io/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

What Claude Code can do once it is connected

send21 in other clients

send21 MCP server