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The Useroutr API is JSON over HTTPS with bearer authentication. Each endpoint page shows the Node.js SDK call first and the raw HTTP request second, and you can try any request against the sandbox from the page.

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Conventions

Authentication

Authorization: Bearer ur_test_..., from your server only.

Idempotency

An Idempotency-Key makes money-moving requests safe to retry. Required to create a funding intent.

Errors

One envelope, a stable code, a requestId and a retryable flag.

Pagination

Newest first, with limit and a next_cursor.

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Data

  • Amounts are decimal strings such as "25.0000000", never floats, and always travel with their asset.
  • Assets are ids such as asset_usdc_stellar. See Assets and networks.
  • Ids are prefixed by type: fi_ funding intents, qt_ quotes, pay_ payments, stl_ settlements, ref_ refunds, evt_ events, whep_ webhook endpoints.
  • Timestamps are ISO 8601 in UTC.

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Checkout endpoints

The three endpoints under /v1/public/funding-intents/{token} power the checkout. They take no API key: the funding token is the credential, and they answer any origin so a browser can call them directly. Use them to build a custom checkout.

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OpenAPI

The API describes itself as OpenAPI 3.1 at /openapi.json on each base URL, for generating a client in another language.