send21
Crypto pay links and API for people and AI agents. BTC, Lightning, USDC, USDT, EURC, SOL, ETH.
Should I use this
Quality & Safety
A
Findings (2)
- HIGHTool poisoning patterns detected
- MEDIUMTool description contains suspicious base64-like encoded stringin get_draft_status
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
~3,302Tokens (tool definitions)
~1.4 KBTypical response size
Significant attention impact (2.58% of 128k context)
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"mcp": {
"url": "https://send21.io/mcp"
}
}
}Remote endpoints
https://send21.io/mcpstreamable-httphttps://send21.io/mcp/oauthstreamable-httpWhat it can do
Tool inventory
No publishable tool enumeration has been recorded.
Community
Evidence
Recent observations
auth requiredversion not recorded—
verifiedversion not recorded14 tools
auth requiredversion not recorded—
verifiedversion not recorded11 tools
verifiedversion not recorded10 tools
verifiedversion not recorded9 tools
verifiedversion not recorded9 tools
verifiedversion not recorded9 tools