Explore APIs

Use this when you need to share a file with another agent or a human: upload base64 content or a URL and get a short-lived, zero-log download link with TTL (15m–7d) and optional burn-after-reading.

Evaluate a chess position with Stockfish: best move, centipawn/mate score, principal variation, and optional multipv. No mocks — a real single-threaded Stockfish 10 (asm.js) runs in-isolate per call.

Call before paying an unfamiliar x402 endpoint to check that it is real and actually gets paid. Pass ?url=<endpoint URL>. ProvenPaid probes the endpoint without paying, validates its x402 challenge (v1/v2; MPP detected) and reads public Base data for its receiving address: distinct payers, repeat-payer share, payer concentration and coverage, each with source and timestamp. Evidence, not a verdict

Create a signed proof for a wallet that anyone can verify offline.

One organization's public tier as on its profile page: timeline, posture checks, published controls, BAA claim, advertised frameworks, subprocessor and AI-provider counts, chain-trust ratio and hiring count. Price: $0.01 flat per profile.

Recent verified LaunchLab pools; unknown creation times remain null

g55 charset ladder A1 lt<gt> A2 fw＜＞ A3 ent &lt;&gt; A4 nest &amp;lt; A5 amp & A6 sq' A7 dq" A8 close</x> end axis-marker 5510

One priced computation on the Last Price Pricing Compute Network (POST /api/compute/price).

Live Chainlink price of a tokenized US stock or ETF on Robinhood Chain (SGOV, SPY, NVDA, AAPL, AMZN, BABA, COIN, CRWV, DELL, GOOGL, META, MSFT, ORCL, PLTR, SPCX, TSLA, USO), with the token and feed addresses and when the feed last updated.

AI chat completions API - pay per request with USDC on Base

AI chat completions API - pay per request with USDC on Base

AI chat completions API - pay per request with USDC on Base

Search kids' camps, classes and lessons in Santa Fe and Albuquerque, NM by city, age, max price, month, type, category or season. Returns dates, hours, prices, location, registration status, contact, source link and last-verified date.

Transcribe prerecorded audio or video at a public URL. Send JSON with input_url and input_duration in seconds, then pay the quote with native USDC on Base. Replay the paid request until it returns a job ID. Receive transcripts by webhook or by polling the free status route. Transcription costs $0.002 per audio minute, $0.01 minimum. Optional speaker labels, word timestamps, and audio labels add se

Latest filings for a ticker, optionally filtered by form type.

MCP security checks and feedback for users and developers. Choose paid access without reports, or ongoing free access within limits: POST /v1/client-token; 1 check/24h + 1 for a previous-use report. Check URL/DNS, metadata/schema/auth, OSV/CVE risk and catalog drift before connecting. Verified owners can read consented weekly reports. ALLOW/BLOCK/UNKNOWN uses caller-confirmed versions. No tool exe

Paginated list of merchants (top recipients by volume)

Official Czech National Bank daily FX fixing (CZK per unit) as JSON, optionally for a past date.

Scan text for accidentally-committed secrets (API keys, tokens, private keys) before you publish it.

Public holidays via Nager.Date (keyless). ISO country + year → holiday list.

Public Wikidata relationship graph (≤2 hops). Fixed property list; privacy bounds (no family/contact). Empty+reason → charged:false. Amp port.

News brief with sources (GDELT headlines+links only). No article body republish. No charge on empty/failed.

Project Gutenberg books via Gutendex (keyless). search/topic/ids/author_year → trimmed book list.

Open-Meteo geocoding (keyless; Nominatim replacement). name (+ count/language/country) → trimmed places (name/lat/lon/country/admin1).

Extract entities/fields from text into a caller JSON Schema. Wikidata QID links + source spans. Fail closed (no charge) if output does not validate.

Dictionary definitions via api.dictionaryapi.dev (keyless). Word → meanings (partOfSpeech + definitions), phonetics, sourceUrls.

Country metadata (keyless). name or code (cca2/cca3) → name/capital/region/currencies/languages/flags/population. restcountries v3.1 with apicountries fallback.

Stylometric AI-writing detector (~78% in-sample bench; not field accuracy). Uncertain → invite longer sample (ideally 300+ words). Amp port — honesty preserved.

Palette contrast matrix (WCAG AA/AAA) + nearest passing color suggestions. Offline.

Call GET /api/pulse?symbol=ETH for a one-line live token price on Base. $0.001 USDC. Use when you only need the number, not a brief.