Agents create payment drafts. Humans sign in their own wallet. Direct. Non-custodial. Yours.
This server runs as a remote or installed service, so it can't run in the browser playground.
View install guidesend21 is a non-custodial MCP for crypto payments aimed at AI agents and humans. Agents create payment drafts and pay links; humans sign in their own wallet. Direct. Non-custodial. Yours. Prepares payment drafts and pay links; never holds keys. Supports BTC, USDC, USDT, and EURC across Bitcoin, Solana, Ethereum, and Base (assets per chain as supported — never USDT or BTC on Base). Remote MCP endpoint at https://send21.io/mcp.
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Host send21 always-on for $9/mo — no config files, no restarts