Every agent-payable API.

Coordinate multiple agents through one shared workspace: $0.25 for 7 days and 1000 operations, all free after this one payment. BARRIER — collect results from N sub-agents: each gets its own arrive URL; when the last one reports, ONE webhook fires with everything collected; a missed deadline sends a partial event naming who's missing. LOCK — exactly one agent performs a critical step: others get 409 naming the holder, and leases expire on their own, so a crashed agent never blocks the rest.

Find bugs, explain errors, suggest fixes.

Options volumes for one chain by DefiLlama — options-protocol volume on a single chain.

Batch historical token prices by DefiLlama — prices for many coins at many timestamps in one call (coins is a JSON map).

DEX summary by DefiLlama — trading volume and history for one decentralized exchange by protocol slug.

DEX volumes for one chain by DefiLlama — decentralized-exchange trading volume on a single chain.

Day-over-day added/removed events on Japan MOF's crypto sanctions address list. Lightweight alternative to buying the full list (/v1/reg/sanctions/addresses) every time. Factual; not legal advice.

Historical hourly AI intelligence digests (1-24 hours lookback). Track how AI agent sentiment, topics, and narratives evolve over time. Each digest contains full analysis of that hour's agent activity.

Kaspa own-node peer-network breakdown (IPv4/IPv6) + user-agent distribution. AI agent API for network-health monitoring, node-operator analytics. Informational research data — not investment advice.

Domain availability and expiry intelligence via RDAP, the WHOIS successor. Queries the authoritative registry for any RDAP-enabled TLD: free domains return registered:false, taken ones return registrar, creation and expiry dates, nameservers and EPP status codes. TLDs without RDAP coverage return supported:false. Built for agents that buy, monitor or vet domains.

Rolling index of NIP-90 Data Vending Machine activity on Nostr. Shows what AI/data services agents are paying each other for right now — the sats-denominated agent-economy leading indicator. Per-kind breakdown of requests, responses, unique customers, unique providers. Query ?window=15m|1h|6h|24h.

Enrich any company by its domain in one call — RDAP registration age + registrar, DNS (does it run email, what website/host), and a Wikipedia company profile when available. The cheap company-intelligence read sales, research, and qualification agents make. Free public upstreams, pure margin — our entry into the data-enrichment lane (StableEnrich charges $0.02-0.05 for paid-upstream enrichment; this is the free-data company layer at a fraction).

Eth Eur — an agent-callable eth eur service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Eth Jpy — an agent-callable eth jpy service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Eth Options — an agent-callable eth options service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.03 USD per call.

Eth Usd — an agent-callable eth usd service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Eth Usd — an agent-callable eth usd service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Eth Usd — an agent-callable eth usd service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Eur Cny — an agent-callable eur cny service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Eur Gbp — an agent-callable eur gbp service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Eur Vwap — an agent-callable eur vwap service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.02 USD per call.

FDA recall lookup — up to 15 recent drug/product recalls by company or keyword: recalling firm, product, reason, classification and status, from official openFDA enforcement data. The keyless recall-monitoring source for compliance, supply-chain, pharma and consumer-safety agents. Try before you pay: GET /v1/free/fda-recalls/{keyword} returns the match count + one real sample recall free (25/day). $0.05 for the full list.

Current Crypto Fear & Greed Index (0-100) with its label (Extreme Fear → Extreme Greed), updated daily. A single market-mood gauge for risk-on/risk-off context. For trend over time use /fear-greed/compare or /fear-greed/history.

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.

Fetch Google Play Store top paid games.

List of recently flagged Solana tokens (DANGEROUS or RISKY safety level) with reasons.

ForgeMesh fare intelligence for one route query.

Freederia synthetic research post API access

Normalize a bounded public JSON, RSS, or Atom source and return a signed monitoring cursor

Fused directional trading signal with confidence score

Firecrawl v2 API proxy — scrape. JSON body matches https://docs.firecrawl.dev/api-reference/v2-introduction. Poll GET routes are free; POST/PUT/DELETE are x402. $0.042 USDC per request. Agent search: scrape, markdown, firecrawl, web scrape, scrape-lite.

SociaVault API proxy — facebook-marketplace-location-search. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.

Gas Ethereum — an agent-callable gas ethereum service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Gas Index — an agent-callable gas index service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Gas Optimism — an agent-callable gas optimism service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Gas Polygon — an agent-callable gas polygon service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

GBLIN protocol governance state: owner, 48h immutable timelock parameters, and any pending operation.

Gbp Cad — an agent-callable gbp cad service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Gbp Chf — an agent-callable gbp chf service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

One-call screening across Japan MOF asset-freeze list and OFAC SDN List (digital currency addresses). Upgrade path from /v1/reg/sanctions/check. UN/EU/UK lists not yet included. Factual; not legal advice.

Compare one fact across all 106 countries in a single JSON call — e.g. VAT rates, minimum wages, public holidays or digital nomad visas for every country at once. The bulk alternative to 106 single-country calls. For AI agents building comparisons, rankings and market scans. Example: /api/v1/compare/vat

Google Trends related topics for a keyword by country — top & rising topics for SEO content research, trend discovery and market analysis.

Graph schema definition — entry point for agents to discover available data

US electricity grid — demand, generation mix (renewable/gas/nuclear), and stress signals across 7 regions

HTTP Latency Check API. Measure HTTP response latency for a URL from the Cloudflare Worker edge. Returns status code, latency, redirect, content type and edge location metadata. Useful for uptime checks, API diagnostics and website monitoring. Paid per call via x402.

Give this API a list of up to 10 web addresses and it will visit each one to tell you whether it is working, broken, or redirecting visitors somewhere else. You get back the exact status number (like 200 for OK, 404 for not found, 500 for server error), whether the address redirects, and where it redirects to. Great for finding broken links, verifying website migrations, and running quick SEO audits without writing any code.

Historical performance by calendar month (e.g. 'Uptober') — avg return and win rate per month. Use for seasonal positioning. Pattern from history, not a prediction.

Historical safety analyses for a token. Each snapshot records overall risk, warnings, critical risks, and holder metrics at that point in time.

Bulk historical window (up to 24h) of 1-minute DEX spread statistics for a given pair, in one call. Useful for slippage calibration and backtesting. Descriptive statistics only; not investment advice.

Japanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.