Search scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...).

Decision Leg invalidations. Per-call USDC.

Wallet balance and ERC-20 token balance on Base: live ETH, USDC and up to 5 ERC-20 balances of any address, read from Base mainnet. Pre-flight funding check before a payment or a swap. No API key.

API prices of 400+ LLMs (OpenAI, Anthropic, Google, DeepSeek, Llama, Qwen...) per million input/output tokens with context length, searchable by name and sortable by price, context or newest.

LLM inference API: OpenAI-compatible chat completions, send messages, get choices and usage. Cheap LLM inference for agents (Llama 3.1 8B), no key, no streaming.

Deterministically score a task brief for deliverables, acceptance criteria, deadlines, constraints, and usable scope before committing time. No AI calls; same brief always yields the same score.

Grade a domain's email security: SPF, DMARC, DKIM and MX score. $0.01 USDC on Base per call. Returns a 0-100 score and A-F grade (SPF 30, DMARC 40, DKIM 25, MX 5) from live DNS, with findings and the top 3 fixes. Bad input 400, unknown domain 404, not charged. Don't use this for the exact records to publish; use /v1/fix-plan.

Detects words and lines of text in a photo or screenshot (JPEG or PNG at a URL) with Amazon Rekognition, up to 100 words. Suited to signs, product labels and UI text; for documents use /v1/ocr.

Prüft am Objekt auswahl den Befund vorhandenen Alternativtext.

Public DNS records of a domain in one call: A, AAAA, MX, NS, TXT, CAA.

The smallest real x402 paid call: costs $0.001 in USDC and returns ok with the server time and payment network. Useful for checking that an x402 client can sign and settle a payment end to end.

Signal bias with setup levels and invalidation. Rules-based bias (bullish/lean_bullish/neutral/lean_bearish/bearish) with score, confidence, setup, weighted factors, invalidation. tf sets candle size and lookback (5m=1H to 1w=1Y): shorter is faster but noisier, longer is slower but higher-conviction. Accuracy free at /api/v1/track-record. Quick direction + one setup; get_trade_plan ($0.03) adds target-before-stop odds, get_market_regime ($0.005) is trend/volatility only.

Use when you need what is said in a public short-form video (TikTok, Instagram Reel, YouTube Short, Facebook), max 180s. Returns timestamped transcript, English translation if foreign, detected languages. Async: returns job_id + token, poll result_url. Charged only on delivery; failures cost nothing. Repeat videos return instantly.

Pay-per-KYA-credential: a post-quantum-signed agent identity + scope credential — a Dilithium-3 (NIST FIPS 204) credential PLUS an additive ML-DSA-65 / Dilithium-3 (NIST FIPS 204) served signature over the same canonical claim. Free re-verification at /api/kya. x402-native.

Draw a line of text over an image at a corner, an edge or the center, with a size relative to the image width, a color and an opacity.

Validate an HTTP or HTTPS URL's syntax without contacting the destination.

Technical resale check for a Base token address: purchase then resale simulated on its main pool, measured purchase/sale tax, LP burned or locked, top-10 holder share, owner powers (mint, pause, blacklist, proxy), age. Raw facts with severity tags only. Not investment advice.

Check an x402 seller before you pay it. Probes the endpoint now, checks that its payment can actually succeed (token EIP-712 domain, payTo), and adds its 30-day uptime from our monitor of paid Bazaar listings, how many distinct buyers paid it, and how its price compares with similar listings, with cheaper well-used alternatives. Returns a verdict (ok, caution, avoid) with the reasons.

US weather forecast: the next five National Weather Service forecast periods for a latitude and longitude - temperature, wind speed and direction, and the plain-language forecast.

Use when you need a domain lookup, whois, dns records or certificate transparency data for osint, security or due diligence. Do not use for historical whois, registrant personal data (redacted by registries) or port and vulnerability scans. Returns JSON with domain intelligence: WHOIS/RDAP registration, DNS records (A, AAAA, MX, NS, TXT, CAA), SPF and DMARC, and TLS certificates from certificate transparency logs for 0.02 USDC per call. Typical response time 4000 ms (p95). Category: Data.