io.github.send21io/mcp

up checked 2026-11-11T04:38:51.837Z

Unclaimed · Unverified

Agent searches it appeared in, last 30 days: 0. Run this server? Claim the listing: verified label, uptime alerts and analytics.

Publisher-provided title

send21

Publisher-provided description

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

Summary by lookupd

Create crypto payment drafts and pay links, check payment status, get rates and fees, and manage saved receiving addresses.

Install

Claude Code, remote (streamable-http)

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

Claude Code, remote (streamable-http)

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

Codex, remote (streamable-http)

codex mcp add mcp --url https://send21.io/mcp

Codex, remote (streamable-http)

codex mcp add mcp --url https://send21.io/mcp/oauth

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://send21.io/mcp"
    }
  }
}

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://send21.io/mcp/oauth"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (14 tools)

Publisher-provided text

• get_transaction_template Get the transaction template for an on-chain draft: every output to pay, plus walletcreatefundedpsbt arguments and a pay-to-many CSV on Bitcoin, or payment URIs
• get_fee_schedule Get the public send21 fee schedule: tiered percent by payment size in USD, min/max fee, and dust limit. No authentication needed.
• create_payment_request Create a payment request / checkout pay link (you are the RECEIVER asking to get paid). Price in any of 161 fiat currencies; the payer opens the returned payPat
• propose_receiving_address Propose an address for the owner to approve: one of the owner's own receiving addresses (for pay links) or the address of someone the owner pays (for drafts). I
• get_account_status What stands between you and a live pay link: whether the owner's email is confirmed, the receiving-address policy, how many addresses are approved or waiting fo
• list_address_book List the account's saved addresses (label, address, network, direction: Sending = recipients the owner pays, Receiving = the owner's own addresses). Requires sc
• get_draft Get a payment draft by id, including amounts, fee, quote, and status. Requires scope drafts:read.
• submit_lightning_proof Confirm a paid Lightning draft with its proof of payment: the 64-character preimage the paying wallet shows after a Lightning payment. Needed for drafts with a
• create_account Create a send21 account for your human owner, without a key. The owner gets an email with a link to take the account over; until they do, nothing can be created
• get_payment_request Get a payment request by id: status (Open/Completed/Cancelled/Expired), pay path, offered currencies, and the underlying draft once the payer committed. Include
• get_rate Get the current exchange rate for an asset in a fiat currency (rate = fiat units per 1 whole asset unit, with source provenance). Assets: Btc, Usdc, Usdt, Eurc,
• create_draft Create a non-custodial payment draft (you are the SENDER paying a receiver address). Amount is either exact base units (sats for BTC, micro-units for stablecoin
• list_draft_quotes List every quote (rate lock) of a fiat-priced draft, oldest first. Quotes never change; a re-quote adds a new one with its own id. Each has a sha256 (RFC 8785 J
• get_draft_status Lightweight status snapshot of a draft: status (AwaitingPayment/Seen/Confirmed/Expired/Cancelled), paying txid, confirmations, and reviewState when a transfer w

Details

• Version: 1.7.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 643 ms
• First indexed: 2026-11-01T09:54:26.795Z
• Last seen in registry: 2026-11-01T09:54:27.026Z
• Website: https://send21.io/docs/mcp

Badge for your README

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/io.github.send21io/mcp.svg)](https://lookupd.com/servers/io.github.send21io/mcp)

• 62071 servers
• Last crawl: 2026-11-11T16:39:06.253Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp