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mcp/harbor
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send21 MCP

v1.7.0 changelog · 17

io.github.send21io/mcp

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

transport:streamable-http tools:14
Website

Target client

run in your project directory 

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

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

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

get_transaction_template Read-only

get transaction template

get_fee_schedule Read-only

get fee schedule

create_payment_request Mutating

create payment request

propose_receiving_address

propose receiving address

get_account_status Read-only

get account status

list_address_book Read-only

list address book

get_draft Read-only

get draft

submit_lightning_proof

submit lightning proof

create_account Mutating

create account

get_payment_request Read-only

get payment request

get_rate Read-only

get rate

create_draft Mutating

create draft

list_draft_quotes Read-only

list draft quotes

get_draft_status Read-only

get draft status

All 14 tools, one page each

3 prompts you invoke yourself

11 resources you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.