What is Send21?
Send21 creates crypto payment drafts through an API or MCP, using scoped keys that let an AI agent create and track payments but never spend. A person signs each payment in their own wallet, and the service never holds keys.
Key facts
- Pricing
- Freemium
- Free plan
- Yes
- Category
- Finance
- Website
- https://send21.io/demo
- Listing updated
- Nov 11, 2026
Send21 FAQ
What is Send21?
Send21 creates crypto payment drafts through an API or MCP, using scoped keys that let an AI agent create and track payments but never spend. A person signs each payment in their own wallet, and the service never holds keys.
Is Send21 free?
Yes. Send21 lists a free plan. Pricing: Freemium.
What are alternatives to Send21?
Finance alternatives to Send21 include FinChat, Lido, Onfido, ComplyAdvantage, Jumio and Vic.ai.