# Crosscheck x402 seller API

**Canonical:** https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-x402-seller-api/  
**Provider:** Crosscheck — https://apis.io/providers/crosscheckapi-com/  
**Base URL:** https://crosscheckapi.com  
**Documentation:** https://crosscheckapi.com/

Crosscheck x402 seller API is one of 14 APIs that [Crosscheck](https://apis.io/providers/crosscheckapi-com/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include x402 seller. The published artifact set on APIs.io includes an OpenAPI specification.

The x402 seller API from Crosscheck — 2 operation(s) for x402 seller.

## Operations (2)

| Method | Path | Summary |
|---|---|---|
| POST | `/v1/sellercheck` | Check an x402 seller's resource: valid 402, Bazaar index, agent402 router… |
| POST | `/v1/sellerwatch` | Watch an x402 resource for 30 days, hourly, with alerts on change (paid once… |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/crosscheckapi-com/openapi/crosscheckapi-com-x402-seller-api-openapi.yml

## Other Crosscheck APIs (12)

- [Crosscheck Accept API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-accept-api/)
- [Crosscheck Accept Lite API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-accept-lite-api/)
- [Crosscheck acceptance test API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-acceptance-test-api/)
- [Crosscheck Checks API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-checks-api/)
- [Crosscheck draft review API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-draft-review-api/)
- [Crosscheck Quote API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-quote-api/)
- [Crosscheck Receipts API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-receipts-api/)
- [Crosscheck Sellercheck API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-sellercheck-api/)
- [Crosscheck Sellerwatch API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-sellerwatch-api/)
- [Crosscheck skill security API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-skill-security-api/)
- [Crosscheck Skillcheck API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-skillcheck-api/)
- [Crosscheck Skillcheck Lite API](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-skillcheck-lite-api/)

## Tags

x402 seller

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/crosscheckapi-com/crosscheckapi-com-x402-seller-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/crosscheckapi-com/.