Explore APIs

DNS A record lookup — resolve any hostname or domain to its IPv4 addresses, returned as a clean JSON list. For host resolution, connectivity and uptime checks, IP-reputation enrichment and infrastructure mapping.

US Treasury yield curve — constant-maturity market yields from 1-month to 30-year, daily history.

Payment flow verification for agents integrating x402: confirms your wallet and payment channel work before you spend on a real endpoint. Category: infra.

Google Trends interest over time for a keyword — search interest as a dated 0-100 series with country targeting (geo) and timeframe windows from the past hour back to 2004: daily points for 30/90-day windows, weekly for 12 months/5 years. For keyword trend analysis, search demand seasonality and SEO keyword research.

Stablecoin parallel-rate premium — how far the street price of a digital dollar (per-venue USDT quotes) diverges from the official FX rate in capital-controlled economies: venue table, median street rate, premium %, signal read. ARS, VES, BRL, COP, PEN, MXN, CLP, BOB; ARS includes the blue/MEP/CCL board. Live quotes, no LLM.

Create a new persistent human profile in the vault. Agent-namespaced by wallet address. Accepts initial identity, text samples, observations, and birth data.

Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet conditions across 37 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, account code (plain key, EIP-7702 delegation, or contract), and agent standing (ERC-8004 registration, ERC-7710 delegation validity). A verifiable boolean, never raw balances or code. Up to 10 conditions per pay-pe

Get multi-window ROI snapshots for one or more cryptocurrency assets.

Gas price: live gas fees for Ethereum, Base, Arbitrum, Polygon and Solana in one call. Use before sending a transaction to pick a fee or the cheapest chain. Returns base fee, slow/standard/fast priority fees, max fee, congestion, and the USD cost of a transfer, an ERC-20 transfer and a swap per chain, plus Solana priority fees. Optional chain. 0.001 USDC/call; failed calls are free.

Honeypot and rug pull check for a token: is it safe to buy? Checks a Solana or EVM token before you buy, hold or accept it (mint or freeze authority still active, LP not locked, buy/sell tax, low liquidity, brand-new token, concentrated holders) and answers green/orange/red with a grade (SAFE/CAUTION/RISKY/AVOID), the reasons, a one-line summary and market data. Bulk: 100 checks for $0.80 via /v1/

Hiring signals of a company: open jobs read from its public ATS board (Greenhouse, Lever, Ashby, SmartRecruiters, Recruitee, Personio, Workable, Teamtailor, Workday), summarized as buying signals (volume, last 30 days, functions hiring, seniority mix, leadership roles); each job carries its function and seniority (intern to c-level). From a domain, a French SIREN or a company name. Chain with /api

News: recent headlines for one symbol from our own news pipeline, each with a tone score, plus the average tone. Empty results are reported as empty (never charged), not as neutral. Experimental. Not financial advice.

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call. List your own x402 service on bazaar.agentexchange.work/listings: 1 USD, 30 days, live at once, no account.

Queries foreign exchange currency pairings from the free Frankfurter database.

Live feed of every active rail disruption across the Japanese (JP) network in one call — delays and suspensions with bilingual summaries, refreshed continuously from ODPT. Built for MONITORING agents: poll on an interval (e.g. every 5 minutes) to maintain a nationwide incident watchlist without querying stations one by one.

Per-call counterparty lookup. Pass ?ua=<counterparty-UA>. Returns ONE signed row: has_record (yes/no), payment-attached count, settlement count, class, verdict (known_payer | probe_only | low_signal | unknown), with Ed25519 attestation. Pay $0.01 USDC on Base or Solana per call. Call it before every transaction to check if a counterparty has ever paid at this merchant seat. Wallet-based lookup (?w

Sprite tools: Cut a sprite sheet into frames by grid or by transparent gaps; frame PNGs plus a ZIP. Full schema: https://rengi.dev/v1/sprite-tools/schema

Native coin and ERC-20 token balance for any wallet address on Base, Polygon, Arbitrum, Optimism or Ethereum. Returns raw and human-decimal amounts in one call.

Sanctions screen of a company or person name against the OFAC SDN, EU and UN sanctions lists, held locally and refreshed daily. Returns each matched entry: list, entry id, matched name, programmes, countries, listing date and match score. Exact normalised or word-order-insensitive name match only; a name match is not a determination.

x402 payability check: reachable + well-formed 402 + (Solana) destination-ATA existence

Find the best DeFi yields across 500+ protocols and all major chains: filter by token (USDC, ETH...), chain, protocol, stablecoin-only and minimum TVL; returns APY (base + reward), 30-day mean APY, 7-day change, TVL, impermanent-loss risk and outlook. Sort by APY or TVL.

Drop-in Exa-compatible contents: send urls (or ids) and text / highlights options exactly as for Exa /contents and get results with id, url, title, author, publishedDate, text and highlights plus per-URL statuses, as clean markdown with a prompt-injection verdict. Up to 10 URLs for $0.004. Not affiliated with Exa.

Translation tuned for skilled-trade work: HVAC, refrigeration, electrical and construction terms stay correct instead of collapsing into a generic word. Handles text typed fast without accent marks.

Summarise IPv4 or IPv6 CIDR blocks into the minimal set (merging adjacent and overlapping blocks) plus the covering supernet.

Compare equal periodic buys (dollar-cost averaging) with one lump sum on the first date, over a list of prices.

Compute a SHA-256 hex digest of a text payload. Cryptographic hash / checksum helper. Not an attestation.

Text completion using the model selected in the request body.

One original constraint card in the tradition of lateral-thinking decks: a short instruction, reversal or question you can apply to whatever is stuck, written fresh by a model at high temperature on every call. The cards are ours, never a card from any published deck. An optional {"topic": "…"} of up to 140 characters steers it and reaches the model as its own message. No pool, no cache, and nothi

Crypto market tick — BTC, ETH, SOL live price + 24h change, Fear & Greed index, and a deterministic regime verdict (RISK_ON / DRIFT_UP / CHOP / DRIFT_DOWN / RISK_OFF) in ONE $0.05 call. Built for agent loops that need a cheap market pulse every cycle; escalate to /api/scan/crypto ($2) for the institutional deep scan with technicals, derivatives and a directional call. 60s freshness, no LLM in the

A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address.