Music generation: describe a track, get an original piece back in the same response. Google Lyria 3: a 30-second clip ($0.06) or a full song ($0.12). No account or API key: the payment is the only credential.

SSL/TLS certificate check: expiry, issuer, SANs, chain validity, hostname match, negotiated protocol/cipher, and weak-algo warnings for a public HTTPS host. Clean JSON.

Current VAT rates for supported European countries (EU-27 + UK, CH, NO...). Standard, reduced and super-reduced rates, provided through the third-party vatnode dataset; verify applicability for your transaction. Use when pricing, invoicing or checking tax for a customer in Europe and you need that country's VAT rate.

Create a paid StableTube download job. StableTube downloads the video server-side, uploads the mp4 to S3, and returns a temporary StableTube-owned download URL when ready.

Crypto Fear & Greed Index: alternative.me score (0-100) plus Kronos-owned context (BTC funding sentiment, OI 1h trend, 24h price momentum). Not a pure proxy — adds proprietary derivative signals. Pay-per-call via x402.

Watchlist alerts for up to 25 reward coins since `since`: payout_landed, payout_stale (no payout for 24h+), stopped_trading (no 24h volume), holders_change (±10% default), and rewards_since (paid to holders, quote + USD). Plus current payout status per coin. From the 10-minute index in milliseconds; poll it and pass checked_at back as since.

Compile Solidity contracts with the Remix compiler, supporting multiple files, custom versions, and optimization settings

Chat completions via Telnyx Inference (google/gemma-2b-it). OpenAI-compatible. $0.002 USDC per call.

On-chain state of ALST, the alest.io token for a tokenized Tesla Cybercab robotaxi (real-world asset). Name, symbol, decimals and total supply read live from Base Sepolia testnet.

Minneapolis rental license check — is this property licensed? Property due diligence agent for Minneapolis Minnesota (Hennepin) housing compliance open data. GET ?address= (street 1-120 chars) → compliance_verdict (licensed_clean|licensed_with_violations|unlicensed|condemned_or_boarded), rental license status/tier/units/expiration, violation cases, condemned/boarded. Live City JSON. Tenant screening, landlord DD, lending. Sample: /mn/property-check/sample.

Entry point to the x402 Carbon Retirement API on Base. Returns every endpoint you need plus a live snapshot of the top 3 carbon classes and marketplace listings by liquidity. Discover, quote and certificate are free. Retiring is paid: each retirement costs the credit price plus a fee, sent from your own wallet (prepare/retire) or relayed from a signed USDC authorization (prepare-auth + POST actions/retire). Full spec at /openapi.json.

Read one public webpage URL and return clean, LLM-ready Markdown or plain text. Designed for AI agents that need webpage contents, RAG context, research or summarization.

Live universal sky snapshot, no inputs: geocentric ecliptic longitudes for 13 bodies (Sun through Pluto, Chiron, lunar nodes) with zodiac sign/degree and 64-gate wheel placements, current moon phase and illumination, active retrogrades, and a 30-day almanac of upcoming stations and lunations. JPL-validated ephemeris. JSON. $0.01 USDC via x402, or API key.

Search cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.

Latest block on any major EVM chain: block number, timestamp, age in seconds, base fee and gas used/limit. The cheapest possible liveness and chain-tip check for an agent: confirm a chain is progressing, timestamp an observation, or pick a block for a query.

Fetch a YouTube transcript from a video URL or 11-char id (video_id, also accepted as ref or url); returns a presigned download URL to the transcript

Generate a video from a text prompt, or animate an image_url from its first frame. The paid response waits about as long as the model usually takes to render and returns the video URL, else a statusUrl to poll (Prefer: wait=N sets the wait). 8 models including Google Veo 3.1, Kling 3.0, Seedance 2.5, Wan 2.7 and MiniMax Hailuo 3, 4 to 15 seconds, 16:9 or 9:16, from $0.42. GET this URL for every model and price. No account or API key: the payment is the only credential.

ENS name resolution in both directions on Ethereum mainnet. Pass name to resolve an ENS name to its address (forward), or pass address to get that address's primary ENS name (reverse, forward-verified so spoofed reverse records are rejected). Read straight from the ENS registry. Use it to turn vitalik.eth into an address, or to label a raw address with a human-readable name.

List Polymarket markets with cursor-based keyset pagination (same filters as /polymarket/markets)

YouTube video metadata in one call: title, channel name and id, duration, upload date, view and like counts, description, thumbnail URL, the chapter list with start and end times, and the language plus kind (manual or auto) of every available caption track. Never downloads media. Use it to check a video's length or caption availability before paying for a transcript, or to enrich a bare video link with real facts.