Explore APIs

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

Compute the determinant of a square matrix via Gaussian elimination with partial pivoting. A non-square, ragged or empty matrix is a clean 400; a singular matrix simply returns 0.

Locus public pay-per-use API

DNS and list based verification. Never claims that a mailbox exists without evidence: without an SMTP probe the verdict for a routable address is "unknown", not "valid".

Top active Polymarket prediction markets by volume, with live implied probabilities + one-line read

Pay $0.01 USDC to create a leaderboard or add, update, or delete one entry. Use a secret leaderboard_key UUID to continue writing to the same board. If value is null, the named entry is deleted. Public pages stay free at GET /leaderboard/{slug}. Network: Base Mainnet. Each request writes one named score and returns the board key and URLs.

X Preflight: read a draft post against X's open-sourced ranking code. Returns what is already settled before you post, whether it enters the pool strangers are drawn from, how long it stays retrievable, which filters delete it, and which gates nobody can know in advance. Every claim cites a file and line in X's published source. Never writes the post. Nothing stored.

Für Zahlungsziele, Fristen und Liefertermine. Die Antwort nennt das Ergebnisdatum, die Zahl der Kalendertage und jeden übersprungenen Tag mit Grund.

Decode a JSON Web Token WITHOUT verifying its signature and return the header, payload and signature. A structurally malformed token is rejected before payment. Never trust a decoded payload you have not verified.

Rendered page as markdown via Browser Run. POST { url } only. Returns result. No Firecrawl credits. Integrators: POST /v1/firecrawl/scrape — GET /v1/models?bundle=browser.

Full text of one IRS Internal Revenue Bulletin document (Revenue Ruling, Revenue Procedure, Notice, Announcement, or Treasury Decision), 2003 to present. Get the id from GET /search?q=<keywords>. Use this when you need the complete, verbatim text of a specific IRS guidance document for tax research, not a summary.

IP geolocation, ASN and reputation lookup: VPN/Tor proxy, hosting and botnet C2 flags with an abuse score, for any IPv4 or IPv6 address.

Creates a five-minute inbound SMS lease through a configured licensed provider, polls received messages, and releases the number upstream on cancellation, expiry or failed x402 settlement. Twilio is supported directly; an HTTPS bearer-token lease provider can also implement the documented generic contract. Messages and lease metadata are removed after expiry.

Sends a request to a web address you provide and reports back everything the server said in response: the status code, all the response headers, how many times it got redirected, and how long the whole thing took.

Current public Lever job openings, counts by team, department, location, commitment and workplace type. Optional since ISO timestamp filters openings by creation date. No account or API key required.

Compute a cryptographic digest (SHA-2, SHA-3, BLAKE2, and legacy SHA-1/MD5/RIPEMD-160) of some data. The input may be utf8/hex/base64/base64url and the digest is returned as hex/base64/base64url.

Locus public pay-per-use API

Real-time Fuse payment network statistics — transaction volumes, network health, gas tiers, FUSE token price.

Settlement date and day-count fraction on the Payments Canada calendar. Stale calendar data is refused, never guessed.

Full text of one section of the FDA Investigations Operations Manual (IOM). Get the id from GET /search?q=<keywords> or GET /chapter/:id. Use this when you need the complete, verbatim text of a specific IOM section for inspection-readiness or regulatory research, not a summary.

Locus public pay-per-use API

Read any public web page and get back clean readable text plus title, word count and fetch metadata. Use it when an agent needs page content without parsing HTML itself. Pay per call with x402.

Pay $0.01 USDC as a small donation or a simple live x402 integration test. Optional name and message are stored publicly and shown on GET /donations. Network: Base Mainnet. Each request records one donation and returns public feed links.

Detect whether an email address uses a disposable / throwaway domain (Mailinator, TempMail, etc.). Classifies the INPUT address. Static list match, no external call.

Locus public pay-per-use API

DeepCounterfeit pre-buy check for 8QtbrC9d3BezyCwzBFUQbNsWJGte7ckrZ7HWcn81pump (risk signals, informational only, not financial advice)

Before any buy: why a name is not a candidate today. GET /api/board/whynot?sym=NVDA returns the plain reason on the live board: the gate for its book and sector, its entry window (READY, SETUP, WAIT, CHASE, FALLING, BASING) and earnings inside five trading days, or the state that makes it a candidate. One symbol per read; an unknown symbol fails free with a 400. ~5-min refresh. States and reasons

Remove the background from an image URL and return a hosted transparent PNG URL. Paid responses include a feedback_id. Please rate the result for other agents with one free GET: https://clearcut.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully|partially|no.

CitePulse AI v4.0 — Live Server-Side GEO, Schema.org JSON-LD & /llms.txt Readiness Audit ($0.01 USDC on Base).

BotsRated (beta): full measurement history for one seller host: every receipt with timestamp, status, latency, hashes, signatures and tx links. Free sample: /v1/sample/report. First 10 calls per client per UTC day are free. Terms: https://botsrated.com/terms