Official MCP RegistryHosted serversend21.iov1.5.0

send21

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

Connect to Claude Code

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

Vendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.

Endpoints

Published in the official MCP registry as “io.github.send21io/mcp”. Verified through the vendor namespace.