Fetch a page and return content, headers, and metadata. $0.01 per request.

Real screening against the official OFAC-SDN list, downloaded daily from treasury.gov. Wallet or name in, match detail and confidence out.

Use when an agent needs bazaar seller rank. Returns x402 Bazaar seller leaderboard: top 25 seller addresses ranked by settled 30d calls in the latest daily full-catalogue snapshot, with listing count, unique 30d payers and each seller’s busiest resource. $0.003.

Aggregated crypto sentiment bias with the contributing sources named. Input for contrarian and regime strategies.

Liquidation pulse: the last 60 minutes across every USDT perp we record: total USD, long/short split, prints and the top 5 symbols. Use when you need to answer: What is being liquidated right now? If our recording is stale it answers 503 and is never billed.

Germany: Value Added Tax (Umsatzsteuer / Mehrwertsteuer), cited JSON with source URL, effective date and last_confirmed. GET /v1/de/vat.

Perp market data for one USDT perp in a single call: Hyperliquid funding and open interest (with 1h/24h change from our 5-minute sampler) and 24h liquidations with long/short split and biggest print from our own tape. Use when you need to answer: What is this perp doing right now, in one call? A symbol nothing lists answers 400 and a failed read answers 503; neither is ever billed.

OpenAI-compatible chat completions, nano tier: gpt-6-luna (the default), gpt-5.6-luna, gpt-5-nano, gemini flash-lite, small llama/ministral/qwen, deepseek-chat - $0.003 per call in USDC over x402, priced for high-frequency agent loops. Same wire format as /v1/chat/completions with loop-sized caps (12k chars in, 768 tokens out). Streaming supported (stream: true). No API key, no signup.

Transcribe audio to text with the gpt-transcribe model. Provide a URL to an audio file (mp3, wav, m4a, etc.) and get back the transcript. Add diarize:true for speaker labels, word timestamps and a language confidence score (the scribe-v2 model, same price). No API key needed; pay per call via x402. Max 4 minutes of audio, 25 MB file size; /api/transcribe-pro takes the same models to 10 minutes.

A signed statement of the office's current holdings summary for $0.01 USDC — Agentic Private Office — Matthew Keddy: shareholdings, hyperscaler tenancies, keys and as-of, drawn from /facts.json and signed EdDSA (kid mk-office-x402-2026-09), with a receipt that resolves forever at /x402/receipt/{nonce}.

LastLook Data — current 30-year US Treasury yield (DGS30). Alias for /api/current?id=DGS30.

Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.

Run a transaction simulation and EVM safety preflight with gas, destination proxy evidence, and optional token security and allowance checks in one decision-ready report.

Run a low-cost token security audit and honeypot check using current automated GoPlus risk fields for a supported EVM contract. These third-party signals are not a guarantee of safety.

Funding pulse: the 5 largest absolute annualised rates across the Hyperliquid perps above a liquidity floor, each with 8h rate, open interest and 24h price move. Use when you need to answer: Where is funding most extreme right now? One call, not a full screen.

VAT calculator for EU-27 + UK: net→gross or gross→net at standard or reduced rate. Includes rates table snapshot date.

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Get weather observations (METAR) for a specific airport

Use when an agent has a city or a country and needs the exact zone name the other routes expect: searches the full IANA list and gives each zone's current UTC offset, abbreviation, local time and DST state. Use it to turn a city or a country into the exact zone name the other endpoints expect, or to find every zone sitting at a given offset right now.

Get weather observations (METAR) for a specific airport