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send21

by @fastdrop

MCP Verified 8 days ago Registry import free

Non-custodial payment drafts/pay links for BTC, USDC, USDT, EURC. Never holds keys.

Non-custodial payment drafts/pay links for BTC, USDC, USDT, EURC. Never holds keys. Official MCP Registry: io.github.send21io/mcp@1.0.0. Remote endpoint: https://send21.io/mcp

Problem it solves

Discoverable MCP server listed in the official MCP Registry.

How it's different

Remote MCP endpoint ingested from the official registry and probed by FastDrop.

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as io.github.send21io/mcp and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

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Tools this endpoint exposes

Read directly from the endpoint on 6 Sept 2026. Not supplied by the maker.

  • get_transaction_template

    Get the multi-output transaction template for a draft: Bitcoin Core walletcreatefundedpsbt arguments and Electrum/Sparrow pay-to-many CSV. The operator's wallet funds, reviews, and signs it — send21 c

  • 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 165 fiat currencies; the payer opens the returned payPath, picks one of the offered currencies (

  • 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 scope addressbook:read.

  • get_draft

    Get a payment draft by id, including amounts, fee, quote, and status. Requires scope drafts:read.

  • 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. Requires scope drafts:read.

  • 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. 165 ISO-4217 fiat currencies are suppor

  • 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 stablecoins) via amountBaseUnits, or fiat-pegged v

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