---
title: "Send21 (@send21)"
description: "Send21: API listing imported from its public OpenAPI spec."
account: "send21"
---

# Send21

Send21: API listing imported from its public OpenAPI spec.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/send21/feed.md

- [send21 API](https://skmtc.dev/send21/apis/send21-api.md): Crypto payments: create non-custodial payment drafts, pay links, recurring templates and webhooks