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Claim my listing on Agent Web Map for x402scan.com:
1. POST https://agentwebmap.com/v1/sites/x402scan.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://x402scan.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/x402scan.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/x402scan.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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x402scan

x402scan is the ecosystem explorer and registry for x402, an open standard for internet-native payments where API resources are purchased just-in-time with stablecoins (USDC) — no accounts, no API keys, no subscriptions. It indexes x402 servers, transactions, buyers, merchants, and facilitators across Base and Solana, and exposes that data through a public API.

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T06:38:34.162Z. Cached copy · Source on x402scan.com

# x402scan

> x402scan is the ecosystem explorer and registry for x402, an open standard for internet-native payments where API resources are purchased just-in-time with stablecoins (USDC) — no accounts, no API keys, no subscriptions. It indexes x402 servers, transactions, buyers, merchants, and facilitators across Base and Solana, and exposes that data through a public API.

x402 lets AI agents and applications pay for API resources on demand over HTTP 402. x402scan makes the ecosystem observable: it tracks payment volume, ranks buyers and merchants, catalogs discoverable resources, and lets you register your own x402 endpoints so agents can find and pay for them.

## Explore
- [Overview](https://www.x402scan.com/): live x402 transaction volume, top buyers, merchants, and facilitators
- [What is x402](https://www.x402scan.com/x402): explainer for the x402 payment standard
- [Agentic commerce](https://www.x402scan.com/agentic-commerce): how agents transact over x402
- [Discover services](https://www.x402scan.com/): indexed x402 API services you can call
- [Facilitators](https://www.x402scan.com/facilitators): x402 facilitators and their stats
- [Networks](https://www.x402scan.com/networks): activity broken down by chain (Base, Solana)

## For agents and developers
- [OpenAPI specification](https://www.x402scan.com/openapi.json): machine-readable spec for the x402scan public API (/api/x402)
- [API catalog](https://www.x402scan.com/.well-known/api-catalog): RFC 9727 catalog linking the spec, docs, and health endpoint
- [API health](https://www.x402scan.com/api/health): liveness endpoint
- [Register a resource](https://www.x402scan.com/resources/register): add your x402 endpoint to the registry

The public API mixes paid and free endpoints: most read endpoints require a small x402 micropayment (~$0.01–$0.02, sent via an `X-Payment` header); registry write endpoints use SIWX wallet authentication and are free. See the OpenAPI spec for the full endpoint list and input schemas.

## Documentation
- [Discovery guide](https://www.x402scan.com/discovery): make your x402 server discoverable by agents
- [Discovery spec (Markdown)](https://www.x402scan.com/discovery/spec.md): the integration and discovery contract
- [Architecture (Markdown)](https://www.x402scan.com/discovery/architecture.md): how discovery works end to end
- [GitHub repository](https://github.com/Merit-Systems/x402scan): source code and README

## Optional
- [Privacy policy (Markdown)](https://www.x402scan.com/privacy.md)
- [Terms of service (Markdown)](https://www.x402scan.com/tos.md)

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Machine-readable: GET /v1/resolve?q=x402scan.com · GET /v1/domain/x402scan.com · this page as Accept: application/json or text/markdown · MCP lookup_domain