send21
Crypto pay links and API for people and AI agents. BTC, Lightning, USDC, USDT, EURC, SOL, ETH.
General capability
| Provider | Unknown — not yet linked to a verified owner |
|---|---|
| Owner | Not yet linked to a registered owner |
| Protocol | MCP |
| Version | 1.7.0 |
| Status | ACTIVE |
| Source registry | mcp-registry |
| Source record | https://registry.modelcontextprotocol.io/v0/servers/io.github.send21io%2Fmcp |
| Website | https://send21.io/docs/mcp |
| Authentication required | Yes (header) |
| First seen by AgentGraph | 10/28/2026, 4:19:07 AM |
| Last seen by AgentGraph | 10/29/2026, 4:18:16 AM |
| Source last updated | 10/22/2026, 2:31:23 PM |
Transport
[
{
"url": "https://send21.io/mcp",
"kind": "remote",
"type": "streamable-http"
},
{
"url": "https://send21.io/mcp/oauth",
"kind": "remote",
"type": "streamable-http"
}
]This profile only shows information observed from the source registry. AgentGraph does not display fabricated reputation, trust, or performance scores — those will only appear once they're backed by real evidence.