# Trepzy Seller API ## Docs - [Getting started](https://docs.trepzy.com/en/getting-started.md): Create a sandbox credential and retrieve a refund with retrieveRefund. - [Auth and grants](https://docs.trepzy.com/en/auth.md): Machine credentials, human OAuth, and sandbox Try It tokens. - [Sandbox and live](https://docs.trepzy.com/en/environments.md): Explicit environment authority. Absence never selects live. - [REST reference](https://docs.trepzy.com/en/reference.md): Reference generated from the canonical OpenAPI contract. - [SDKs](https://docs.trepzy.com/en/sdks.md): Seven server SDKs plus a separate browser SDK. OpenAPI remains the contract. - [CLI](https://docs.trepzy.com/en/cli.md): Official Go CLI uses the public Seller API and OS keychain for human tokens. - [MCP](https://docs.trepzy.com/en/mcp.md): Remote and local MCP call the same public operations with exact-hash approval. - [Webhooks](https://docs.trepzy.com/en/webhooks.md): Verify exact body bytes. Deliveries are at-least-once and unordered. - [Custom domains](https://docs.trepzy.com/en/domains.md): Claim, prove, and attach a checkout hostname without host spoofing. - [Errors, idempotency, and quota](https://docs.trepzy.com/en/errors.md): Stable public error codes plus idempotency, CAS, cursor, and quota. - [Changelog](https://docs.trepzy.com/en/changelog.md): Public history, deprecation, and the absence of a contractual SLA. - [Troubleshooting](https://docs.trepzy.com/en/troubleshooting.md): Public request IDs, webhook deliveries, and safe diagnostics. ## OpenAPI Specs - [trepzy-public-v1](https://docs.trepzy.com/openapi/trepzy-public-v1.json)