Agent & Infrastructure

Native x402 pre-swap token safety and smart contract risk agent. Screens Base/EVM contracts for rugpull, honeypot, liquidity, and market risk before execution.

Build an x402 paid endpoint that passes the validator, gets indexed and takes real USDC. End-to-end recipe for turning any HTTP capability into an x402 endpoint that an unknown agent can find, pay for and consume: the payment gate, the verifier rules, per-route pricing, the concurrency traps, the nginx wiring, the discovery surface, plus the money-path bugs we only found when real USDC moved. Comes with the exact commands we run.

Probe an agent-payable HTTP endpoint for current availability, latency, HTTP status, x402 challenge support, and response-schema validity.

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.

Go module github.com/pkg/errors: latest version, description, license, repository and download/publish data from the go registry API. Pin, audit or compare github.com/pkg/errors in one call, no token. $0.01 per call.

Send one message to every registered agent matching a capability or a named group, in a single x402 call. COST: the whole broadcast is a single flat $0.002 charge regardless of how many agents match — one payment covers every recipient, so cost does NOT scale with the fan-out (which is itself capped so this cannot become a spam primitive). Use it to find help: address 'capability:summarization' and the matching agents receive it.

Proxy API: returns one fast, verified-alive proxy filtered by country, city, protocol and anonymity

AgentCheck: independent report on an x402 seller before you pay it. Are its buyers real (repeat wallets on their own money) or funded by the seller itself, measured from 30 days of on-chain payments, plus results of our own paid test purchases where we have them. Query: ?domain=<seller-domain>. GET /sellers (free) lists covered domains.

Call when an agent needs meta charset values via meta[charset] from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/css-meta-charset first.

PnL Labs trade check — trust/risk verdicts for AI trading agents (api.pnllabs.com)

HTTP status code reference: give a class like 4xx to list every code in it with its reason phrase, a specific code for its meaning and typical use, or a word (e.g. 'teapot', 'redirect', 'auth') to search. Covers all IANA-registered codes 100-511 including 402 Payment Required (used by x402). $0.01 per lookup.

Public MCP server for summaries, DNS lookup, catalog, replies, and JSON checks.

Real demand, self-funded demand, mixed or not enough data for an x402 or marketplace seller on Base or BNB Chain (?chain=bsc), with the one number behind it: how much of its top buyers' money traces back to the seller, how much it pays back, whether one wallet funds most buyers. Payers behind facilitator proxies (Meridian, Fluxa) are named on Base. Describes money flows, never intent.

Anonymous web fetch for AI agents, 5 sats per page via L402. The page is fetched through the Anyone network and returned as markdown with a content hash. Backed by a TOON mainnet node: Lightning in, ILP routing and x402 settlement behind it.

Demo endpoint for x402 resource discovery

GET form of this paid route: identical work, price and responses, with the POST body fields passed as query parameters instead. Numbers and booleans are typed on the wire (?maxUrls=5, ?fullPage=true) and arrays or objects are JSON-encoded (

Call when an agent needs SRV records at _kpasswd._tcp.{hostname} for Kerberos password. The caller sends the registrable domain, not the underscored name. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-kpasswd first.

List Services

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 'inference': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 125 providers and 382 paying wallets measured in this tag.

Highest-demand x402 services tagged 'gateway': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 72 providers and 289 paying wallets measured in this tag.

Highest-demand x402 services tagged 'llm': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 183 providers and 459 paying wallets measured in this tag.

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.

Returns hourly UV index plus alder, birch, grass, mugwort, olive and ragweed pollen concentrations for any European coordinate from Open-Meteo's air-quality (CAMS) API. Autonomous health, pharma, retail and allergy-alert agents consume it for A2A exposure scoring and agent-to-agent wellness recommendations. Ranking surface: pollen forecast, UV index API, allergy, ragweed, birch pollen, CAMS. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.