x402-protocol-integration

Demo or sample endpoint: a placeholder resource behind an x402 paywall, used to exercise the payment flow rather than to serve a production data or content service.

Demo endpoint for x402 resource discovery

Compact Daily Monitoring snapshot for the tracked slice.

Search ~18,000 paid x402 APIs on Base (merged CDP Bazaar + PayAI Bazaar + x402scan + 402index) in plain language. Returns ranked matches scored by relevance, 30-day paid usage, uptime and a live health probe done at query time (valid Base-USDC x402 challenge, live price, latency), each with its input fields, a ready-to-run example request and a /v1/concierge body. Dead, scammy and test endpoints are filtered out.

Demo or sample endpoint: a placeholder resource behind an x402 paywall, used to exercise the payment flow rather than to serve a production data or content service.

Prüft am Objekt seite den Befund Wert des X-Robots-Tags.

Ask for anything, get the result, one endpoint. render402 concierge is an aggregator: describe what you need in plain language (weather, prices, web search, company data, screenshots, speech, translation, ...) with a maxPrice; we route it to a vetted, live-checked third-party x402 service on your behalf, pay that service ourselves, and return the result in one consistent envelope. You never need to discover, vet or pay individual APIs. Price is quoted in the 402 (simple tiers, never above your maxPrice) and settled only if the task succeeds.

Highest-demand x402 services tagged 'on-chain': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 83 providers and 317 paying wallets measured in this tag.

Analyzes and provides feedback on submitted code.

Extracts structured data from web pages.

Analyzes and compares data or metrics to identify differences and similarities.

Extracts structured data from unstructured sources.

Accepts uploaded content and returns a summary of it.

Population statistics for the x402 machine-payment market. Bands paid volume by how many distinct wallets paid for each endpoint, separating open demand from volume running between a single buyer and seller. Returns demand concentration, repeat-usage distribution, pricing, metadata quality, category mix with demand per listing, and day-over-day change from our own daily snapshots. No provider is named, rated or endorsed.

Signed check of an x402 endpoint before you pay it: who really pays it on Base (settlements and unique payers over 30 days), a fresh unpaid probe (cached ≤5 min) with status, latency and the parsed quote, payability, paying agents' reports, the seller's claim, the scout's last real purchase (settlement transaction and whether it matched the listing), a quality score and risk flags. Free up to 300 calls a day per client at /v1/free/check.

Ranked shortlist of x402 services for a stated need. Scores every matching resource in the CDP Bazaar catalogue on repeat usage (calls per distinct payer), reach, recency, published-schema quality and price relative to services answering the same query. Returns three candidates with the raw figures, plain-language reasons, and category context. OpusIntelligence excludes its own services from all rankings.

Synapse Lounge x402 access and service manifest

Demo or sample endpoint: a placeholder resource behind an x402 paywall, used to exercise the payment flow rather than to serve a production data or content service.

Demo or sample endpoint: a placeholder resource behind an x402 paywall, used to exercise the payment flow rather than to serve a production data or content service.

Decode an x402 payment challenge before paying: give it the raw 402 body or payment-required header, as JSON or base64, and get back the version, resource, and every accepted payment normalised to scheme, network, asset, amount and payTo. Names what is wrong with named warnings — bad amount, unrecognised network, invalid payTo, unsupported scheme, missing input or output schema — and returns the declared Bazaar schemas. No network call, no payment sent.

Live liveness + quote check for any x402 endpoint: probes it unpaid (cached ≤5 min), returns status, latency, parsed price/network/payTo, schema completeness, on-chain payer activity (Base), quality score and risk flags. Call before paying an unfamiliar endpoint.

Same lookup as /lookup/{agentId} — this route exists to measure willingness-to-pay and x402 Bazaar discoverability, not because the result is different or better paid.

One unpaid-probe preflight report for an x402 endpoint.

OpenAI-compatible chat completions over x402, answered by Claude Sonnet 4.6 — send a messages array…