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x402 List

x402 List is the **agent-first** open directory of x402 protocol services. It indexes APIs that accept payments via the HTTP 402 standard and exposes every service, uptime metric, and price as machine-readable JSON for AI agents, aggregators, and integrations.

For agents: Agent-first directory of x402 protocol payment APIs, exposing services, uptime and prices as machine-readable JSON, with a REST API and methodology docs.

x402 protocolhttp 402 paymentsagent paymentsapi directorymachine-readable json

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-28T01:11:40.273Z. Cached copy · Source on x402-list.com

# x402 List

> x402 List is the **agent-first** open directory of x402 protocol services. It indexes APIs that accept payments via the HTTP 402 standard and exposes every service, uptime metric, and price as machine-readable JSON for AI agents, aggregators, and integrations.

Last updated: 2026-10-28 (live, generated from the directory database).

License: the directory data is CC BY 4.0. Attribution required: cite x402-list.com.

## Live directory snapshot

- Total listed services: 1182
- Verified services (FORTE tier, treno D3: x402 List paid a real x402 call and the service delivered; no time decay, revoked only on payTo/schema drift; starts at 0 and grows only with paid probes): 13
- Payment-ready services (BASE tier: passed a live x402 402-handshake probe and still responding, established free by the monitor at scale; discovery, not endorsement; decays to "listed" after 7 days of failing probes and heals on the next good one): 1112
- Categories (8): Data (438), AI (211), Verification (170), Finance (129), Blockchain (88), Other (64), Content (63), Compute (19). All names are valid API category filter values. Curated browse pages exist at /services/category/<name> (lowercase) only for: Data, AI, Verification, Finance, Blockchain, Content, Compute (whitelisted pages also 404 under 2 live services; non-whitelisted categories have no browse page).
- Operator hub pages aggregate every listed service of one operator, with all endpoints expanded, at /services/operator/<key>. Curated for: LoneStarOracle (/services/operator/lonestaroracle), x402 Atlas (/services/operator/x402atlas), Hugen (/services/operator/hugen), ForgeMesh (/services/operator/forgemesh), Leeworks (/services/operator/leeworks), PayAPI Market (/services/operator/payapi-market), Agentic JP (/services/operator/agentic-jp) (each also 404s while the operator has fewer than 2 live services).
- Measured 30d service traction (a measured floor across listed services, NOT an ecosystem total): 10,540 distinct on-chain buyers, $325,488 USDC settlement volume, 1,796,711 settlements, across 903 measured services on BSE, SOL, eip155:42220. USDC via measured facilitators only; counted net per address (network,tx_hash,log_index): in each transaction every listed address counts what it received minus what it passed on to other listed addresses, self-payments excluded, commissions paid to listed addresses stay in; never summed from the per-service figures. Listed services cover 18.2% of the flow measurable by our tracked settlers over the same 30d window (the facilitator daily volume we measure, a sum per facilitator, not deduplicated, not the whole ecosystem). The top 10 services account for 95.7% of that settlement volume (a concentration disclosure).
- Uptime windows are built from UTC daily rollups, not rolling hours: the 24h window is the latest daily rollup (one UTC day, usually the current day so far), and 7d / 30d / 90d cover the trailing daily buckets; the 90d window fills progressively sinc
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Machine-readable: GET /v1/resolve?q=x402-list.com · GET /v1/domain/x402-list.com · this page as Accept: application/json or text/markdown · MCP lookup_domain

Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.

Claim my listing on Agent Web Map for x402-list.com:
1. POST https://agentwebmap.com/v1/sites/x402-list.com/claims and keep claim_id and claim_secret private.
2. Publish the verification line "AgentWebMap verification: <token>" (token from step 1) in https://x402-list.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes. This only verifies the listing; your website and domain remain yours.
3. POST https://agentwebmap.com/v1/sites/x402-list.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/x402-list.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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