Check that everyone in an agent session still qualifies, right now. Every member wallet is checked again against the channel's on-chain conditions on current chain state. Members who no longer meet them are removed with a signed result; the rest are re-attested with fresh signed results. Asked for by a session member, priced per member checked. No account or API key. Pay in USDC on Base, Polygon or Arbitrum.

Call before moving funds on Solana: decision-grade account snapshot — kind; mint decimals/supply/authority; whole-account balance and recent signatures — keyless solana-public-rpc.

Mail Security Tools API: Bulk email security score: up to 100 domains in one call. Scores up to 100 domains (comma/space separated) for SPF, DMARC, DKIM and MX from live DNS: per-domain score, grade and issues plus a summary (grade counts, missing DMARC/SPF, worst 10). Built for MSPs and agents checking a whole client or vendor list. Bad input 400 and widespread DNS failure 502, never charged.

Which x402 API should I call? Describe your need in plain words (weather forecast, token price, web search, translate...) and get the best paid endpoints to call: URL, method, price, measured uptime (7/30 days), latency, real buyers, risk flags and a market price summary. Pre-payment API verification and x402 endpoint discovery, probed every 6 h. No AI, verifiable numbers.

PremiumPin exact parcel lookup

Liquidation pressure feed: 5-second buckets per symbol of long and short USD liquidated across venues, the dominant side and pressure against the symbol's own baseline, from a gap-free cursor. Use when you need to answer: Which side is being liquidated across venues right now, and how hard compared with normal?

Get Address Historical Balances Data

World clock and timezone converter — convert timezones (timezone convert) for the current time or any instant (`at`) in IANA zones (`tzs`, e.g. Europe/London,Asia/Tokyo) or a fixed utc_offset (+05:30); returns local time, UTC offset, weekday and DST.

One site's agent readiness from our weekly census of 65,000 top sites: UCP and ACP agent checkout (its MCP endpoint, capabilities, payment handlers), A2A and MCP cards, a real llms.txt, robots.txt rules for 15 AI agents, x402, store and platform, Shopify store facts (ships-to countries, currency), and every change dated. A site not yet in the census is visited live. Measured by us. Signed.

World clock and timezone converter — convert timezones (timezone convert) for the current time or any instant (`at`) in IANA zones (`tzs`, e.g. Europe/London,Asia/Tokyo) or a fixed utc_offset (+05:30); returns local time, UTC offset, weekday and DST.

Crypto price in any ECB currency (EUR, GBP, JPY, CHF...): on-chain USD price (Chainlink or Uniswap v3) converted with ECB reference rates.

Validate an IBAN (international bank account number) — check the country, length and ISO 13616 mod-97 checksum; returns validity, country and check digits.

For JavaScript-rendered pages & pages blocking native Minifetch that obeys robots.txt: fetch thru external rotating proxy, render JS in headless browser & extract same clean markdown as /extract/url-content, after nav, ads, and scripts are stripped. Optional ?country= (2-letter code) to fetch from a specific country. Not cached. Does not obey robots.txt. Supports GET & POST

Validate an IBAN (international bank account number) — check the country, length and ISO 13616 mod-97 checksum; returns validity, country and check digits.

Semantic search over an agent's own persistent memories (wallet-scoped). Free with a valid x-api-key.

OpenAI GPT OSS 120B API (openai/gpt-oss-120b): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need OpenAI GPT OSS 120B on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.

Demo weather - current conditions for New York City

MioDio Meridian deep passport - joined Aave v3 / Lido exit / optional vault decision card for an EVM address (~$0.02 USDC Exact on Base). MioDio x402 DeFi. Terms: https://workers.miodiollc.com/terms

MioDio Meridian bundle - deep passport plus OFAC SDN exact-match screen for one EVM address (~$0.02 USDC Exact on Base). Informational only. MioDio x402 DeFi. Terms: https://workers.miodiollc.com/terms

Check a business entity's registry record and standing in CO, OR, NY or CT by name or entity id, with OFAC SDN sanctions and HHS-OIG LEIE exclusion-list matches on the same row. For KYB, vendor onboarding and counterparty checks by agents.