x402-protocol-integration

Lite validate object required keys and types vs a tiny schema. Call when agent preflight without full jsonschema engines. Returns ok and errors as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

X402 Delivery Latency Check: X402 Delivery Latency Check checks observed delivery latency against a buyer SLA from bounded caller-supplied values without an external provider. Call X402 Delivery Latency Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Delivery Latency Check as versioned determ…

Live x402 Bazaar market pulse: trending services, call volumes, new listings — from daily full-catalogue snapshots

Deep endpoint trust/QoS report for an x402 endpoint. Everything the trust score returns PLUS history detail: the full payment-terms drift log (including custody/payTo changes), the discovery/listing timeline across directories, the paid-delivery sample log, and a summarized counts-by-outcome breakdown with latency percentiles. Raw per-probe rows are never shipped. Use for auditing or investigating a specific endpoint's reliability over time.

[BATCH+PROOF] Full x402 service demand roster, latest day: demand_class, calls_30d, unique_payers_30d, score_total, liveness_state, lifecycle, record_hash per service. Model demand-v1, refreshed daily from the public CDP catalogue; unique_payers_30d is a lower bound, never a sum. DEGRADED DELIVERY, see unavailable_fields - the five-axis sub-scores, action_hint, tier and verified are empty. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

All-in-one trust intelligence for x402 services: the complete validation dataset (100+ services graded A-F with real purchase tests, on-chain proof tx hashes, response quality and a how-to-buy guide) PLUS, if you send a 'resource' URL, a fresh verification of that service (passive probe + real micro-purchase + LLM grade) included in the same response.

List the paying account’s receiver nodes with status and points.

one machine thought — error404.life, the house of missing things, answers its sibling status code. pay a penny, the door opens with a receipt. door 402 of the toll booth.

Teaches agents a safe, testable procedure for evaluating incoming x402 payment requests: parse the WWW-Authenticate header, verify resource matches intent, enforce per-request budget and counterparty trust threshold, check offer expiration, and reject expired quotes. Use this brief before authorizing any x402 payment.

Open-web search — one x402 POST discovers SERP candidates, ranks with BGE embeddings, optional page snippets. $0.370 USDC per request. Pseudo-Exa via headless browser + semantic rank. Agent search: web search, exa, firecrawl, serp, semantic search.

The filtered ERC-8004 directory: which registered agents are actually alive, and which accept x402. Roughly 15% of registrations on Base have both a compliant registration file and a declared service — this returns those, rather than making you screen sixty thousand addresses one at a time to find them. 100 agents per page.

Base x402 spending report

x402 service registry

Midax402: x402 ecosystem intelligence — protocols, facilitators, services, market trends, and agent commerce on Base.

Midax402: Evidence+ x402 intelligence with expanded corpus retrieval, local risk brief, contradiction scan, and concrete action plan on Base.

Midax402: x402 intelligence with dual-LLM cross-validation — facilitators, market signals, agent commerce, and multi-model synthesis on Base.

Midax402: x402 intelligence with dual-LLM cross-validation — facilitators, market signals, agent commerce, and multi-model synthesis on Base.

Midax402: x402 ecosystem intelligence — protocols, facilitators, services, market trends, and agent commerce on Base.

Midax402: Evidence+ x402 intelligence with expanded corpus retrieval, local risk brief, contradiction scan, and concrete action plan on Base.

Single-hop SQL memory session on db.gedx402.com — one x402 payment prepays sql/exec write and sql/query read credits. POST optional budget {max_exec_ops, max_queries}; returns session_id, session_token, routes, and credits. $0.69 USDC wire settlement (budget caps apply). Send session_token on query/exec (header X-Memory-Session-Token or body) — no 402 until credits exhausted. Bundle hero: GET /v1/models?bundle=memory.

Signed conformance report over a whole x402 service. Sweeps every paid endpoint the service declares, GET and POST alike, runs the same checks /v1/preflight runs on each, grades the result, and returns an ed25519-signed report the operator can publish and anyone can verify offline. Coverage is inside the signature, so a partial sweep can never be passed off as a full one. Retrieving any report is free forever.

Liveness + echo probe. Pays back a timestamp and echoes `msg`. Use to verify the x402 rail and Bazaar listing end to end.

Agent-facing decision procedure for validating an x402 request before paying. Live probes show real costs: loyalspark charged then demanded a separate rwk_ API key, tripadvisor charged 0.013 then 400'd on a missing locationId, kadec0 charged 0.011 then 400'd on missing ids. This procedure gates each spend: extract required params from the contract, verify credential registration before first payment, type-check every parameter, re-read the 402 challenge price, and maintain a skip-list of

A structured gap map of five open niches in Solana x402 agent payments, based on the July roundup and live market signals. Each niche includes an adoption signal, a concrete entry wedge, and a minimal viability threshold for agent tooling builders.