Fear & Greed now vs yesterday, 7 days and 30 days ago — with the deltas — so an agent can see whether market sentiment is improving or deteriorating, not just today's number. Use for momentum-of-mood.

Real-time USDC-denominated spot price for any EVM token by contract address or common symbol. Pass ?address=0x... (or ?symbol=ETH) and ?chain=base|ethereum|polygon|arbitrum|optimism|avalanche. Returns price, symbol, decimals, chain, and a timestamp.

Text embeddings. $0.01 USDC per call on Base, no API key. POST JSON { input: a string or up to 64 strings }. Model jina-embeddings-v3, 1024 dimensions. Returns { embeddings (one vector per input), dimensions, count, usage, latency_ms }.

Check an open-source package for known vulnerabilities via the OSV database (Google Open Source Vulnerabilities). Pass package name, ecosystem (npm, PyPI, Go, crates.io, Maven, RubyGems, etc.) and optional version. Returns vulnerability IDs, summaries, severity and fixed versions. Essential pre-install check for coding agents.

On-chain facts for any Base address: EOA or contract, first transaction and age, transaction count, ETH and USDC balances, top 10 tokens held with USD value when known, recent contracts created. Information, not investment advice.

One call, one verdict: PROCEED, CAUTION or BLOCK for any EVM wallet or token, with the reasons attached. $0.02 USDC per call on Base, no API key or account. GET ?address=0x... (required), chain=base|ethereum, type=wallet|token. Checks the OFAC SDN list (synced daily), scam and phishing lists, and honeypot, tax and mint signals. Returns verdict, a one-line summary, reasons[] strongest first, risk_score 0-100 and sources. Never PROCEED when a source could not be checked.

Scrapes a URL and returns structured JSON: title, meta tags, headings, paragraphs, links, tables, extracted emails and phone numbers, and word counts. Accepts a single 'url' or a list of 'urls' for batch scraping. Includes retry logic and anti-detection headers.

PoolTogether draw-schema — volgende draw op Base/Arb/OP/Scroll

Generate a PNG QR code URL for payment and onboarding payloads (upstream probed live)

Check a URL before fetching it: is it alive, final URL after redirects, HTTP status, content type, HTML title, and whether robots.txt allows your user-agent. Link checker and fetch preflight for agents.

News Gurus Intel API — Kelly-criterion outcome ledger: per-trade signal_type, pnl, r_multiple, kelly_fraction, narrative_score and llm_provider — the strategy's live performance history. Optional ?signal_type= filter for per-strategy slicing. Educational data, not financial advice.

Reloadpi — List all countries where digital vouchers and gift cards are available

Agent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 closed-form). Open + IPFS-pinned methodology: agent-sofr-v1.

LLM chat completion. $0.01 USDC per call on Base, no API key. POST JSON { prompt } or { messages: [{ role, content }] }; optional model (OpenRouter slug) and max_tokens (default 800, max 2000). Falls back across up to 5 models so one outage does not fail the call. Returns { content, model, usage, latency_ms }.

IP address geolocation -- city, country, org, timezone. Pass ?ip=8.8.8.8

KYB / KYC verification of a Japanese company: reconcile a company name (+ optional address) against the official JP corporate registry (名寄せ). Returns ranked candidate 法人番号 with a 0-1 confidence score, handling 株式会社 / (株) / ㈱ spelling variation and matching Japanese or English names. A dissolved corporation is never reported as `verified` even on an exact name match. Use it to confirm a vendor, customer, or invoice counterparty.

Search audiobookbay.lu for audiobooks. Returns up to ~12 result entries with slugs that can be passed to /api/audiobooks/details for magnet links.

Fetch any URL and return clean text, title, description, Open Graph tags, canonical, favicon, headings, word count, reading time. Ideal for LLM agents building summaries or doing research. Edge-cached 5min. POST JSON { url, maxTextLen? }.

API uptime and reliability monitoring for any x402 endpoint: a live quality verdict covering availability, uptime, latency percentiles, 402-offer conformance, price-drift and payTo-stability flags. Deterministic and re-verifiable.

One call, one verdict on a token's owner powers: PROCEED, CAUTION or BLOCK, with the reasons attached. $0.02 USDC per call on Base, no API key. GET ?address=0x... (token contract, required), chain=base|ethereum. Reads the chain directly: owner, pause switch, pending owner, upgradeable proxy. Tells you whether the owner can still pause, upgrade or rug it. Returns verdict, a one-line summary, reasons[] strongest first, can_turn_hostile, time_to_rug and the raw controls.