x402 indexability matrix

Registration is not enough. This page records the checks buyer agents and sellers need before a paid route is discoverable, invocable, and trusted: register → readback → search/listing URL → preview or paid diagnostic.

Run free endpoint diagnostic Read JSON matrix

Surface	Status	Current evidence	Next proof action
AgentCash / x402scan	registered_not_search_visible	agentcash check/discover/register succeeded; x402scan registered 17 routes, 0 failed; semantic search still favors competitors for x402 market intel / endpoint risk / domain	`Tune exact buyer/seller diagnostic vocabulary and re-register; measure search readback, not only registration.`
402index	blocked_by_readback	Latest CLI/API readback from this run could not resolve www.402index.io; previous readback showed some Bazaar-sourced routes but missed service_rank, endpoint_risk, provider_dossier.	`Retry targeted readback for the five canonical routes when DNS resolves; submit as x402 only if route fields changed.`
Coinbase Bazaar / Agent402 Bazaar	indexed	CDP/Bazaar discovery includes first-party resources with schemas/examples and payTo 0x1664530DC2A1CA350B1dbaD1Fc1F1a70c90fe4de.	`Keep schemas/examples complete and monitor resource count, quality score, and preview-to-paid conversion.`
x402gle / OpenDexter	registered_pending_live_score	OpenDexter whole-server audition registers paid routes; x402gle host page exists, but synthesized remote SKILL.md remains unavailable until external live scoring/indexing completes.	`Run or fund a specific endpoint audition for endpoint_risk/service_rank and read back synthesized SKILL.md.`
Decixa / live-probe directories	not_x402_readback	decixa.com currently returns the public social-decision site for search-style paths, not an x402 route listing API.	`Do not spend more submissions until a concrete x402 listing/readback endpoint is found.`

Canonical paid routes

POST /v1/x402/service_rank — 0.08 USDC — https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/service_rank
POST /v1/x402/endpoint_risk — 0.05 USDC — https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/endpoint_risk
POST /v1/x402/provider_dossier — 0.08 USDC — https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/provider_dossier
POST /v1/x402/paid_api_discovery — 0.08 USDC — https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/paid_api_discovery
POST /v1/x402/seller_score — 0.05 USDC — https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/seller_score

Buyer checks

Unpaid route returns HTTP 402 with Payment-Required and x-payment-required headers.
Payment requirement binds exact method, URL/resource, amount, asset, network, and payTo.
OpenAPI requestBody schema and examples are present for scanner-generated probes.
Bazaar extension exposes input/output schema and examples.
Directory readback and search result URL are recorded after registration; submission alone is not treated as visibility.
Strict preflight validators can verify x402 v2, CAIP-2 network, top-level resource, Bazaar metadata, and EIP-712 USDC domain fields before a buyer wallet signs.

Active validator checks

AgentTrust-style reputation checks: x402Version=2; network uses eip155:8453; top-level resource present; extensions.bazaar has name/description/input; EIP-712 extra includes USD Coin version 2
x402station-style preflight checks: naked probe treats 402 as healthy; classification and reasons are stored; uptime/latency are separated from settlement demand; high-price decoys are flagged before payment

Seller diagnostics · x402 manifest · OpenAPI · SKILL.md