# Avvio Payouts API

> Pay out to your own customers in their local currency, server to server. The
> partner holds the funds and signs; we price the payout, issue a deposit
> address, and settle once the transfer is observed. We hold no key and never
> hold partner funds.

Authentication is an `x-api-key` header. It is server-side only — the CORS
policy does not permit the header, so a browser cannot send one. There is no
browser playground and there cannot be one; the CLI is the interactive surface.

## Docs

- [Quickstart](/quickstart.md): API key to a completed payout, with curl for every step
- [Errors](/errors.md): every error type, whether anything executed, and what to do
- [Going live](/going-live.md): the pre-production checklist, webhooks and reconciliation
- [For agents](/agents.md): the MCP server, and how to drive this API from an agent
- [OpenAPI spec](/partner-payouts.openapi.yaml): 23 operations, the machine contract
- [Endpoint reference](/reference): the spec, rendered

## Tools

- MCP server: `npx -y @avvio/payments mcp` — 15 tools, money-moving ones require `confirm: true`
- CLI: `npx -y @avvio/payments guide` — the whole flow as commands
- Node SDK: `npm i @avvio/payments` — 25 methods, zero dependencies

## Optional

- [Everything in one file](/llms-full.txt): the full corpus, for a single fetch