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x402 Data API

x402 data APIs that return market, on-chain, and reference datasets behind a pay-per-request HTTP 402 paywall. Each service below is live-monitored: hit an endpoint, receive a 402 with payment terms, settle onchain, and retry.

By task: Web Scraping API · Web Search API · Screenshot API · PDF API · IP Geolocation API · WHOIS API · Company Data API · News API · Weather API · Geocoding API · Real Estate API · Social Media API · Lead Enrichment API · SEO API · Salary API · Web Search MCP · Best Real Estate API · Data Enrichment API · Backlink API · Keyword Research API · Best SEO API

DATA SERVICES ── 442 total ── for live status visit /status

STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.

VOL 30D and BUYERS 30D are a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.

·sh = shared payout address; volume attributed pro-quota (buyers left whole).

x402 Data services with live status, name, description, endpoint count, cheapest per-request price, uptime (latest daily rollup), measured 30-day on-chain volume, distinct 30-day buyers, and supported networks. Click a column header to sort.
STATUS NAME DESCRIPTION EP FROM $/REQ UPTIME · DAILY ROLLUP VOL 30D BUYERS 30D NETWORKS
○ Hyperliquid Intelligence API (FrostyFi)
Description
Full market intelligence for any Hyperliquid market — core crypto perps or HIP-3 equities/commodities/FX. Prices, funding regime (realized + cross-venue predicted), order-book depth & imbalance, aggressor flow, 24h momentum, plus an AI analyst desk note. $0.02 USDC per call via x402 on HyperEVM (eip155:999).
1 $0.02 0.00% --- ---
○ Invoket
Description
The checks AI agents run before they act: verify IBANs and screen sanctions before paying, phone lines before messaging, FR/EU laws in force before advising, weather before deciding, VINs and recalls before buying. Official sources (EPC, OFAC/EU/UN, LEGI/EUR-Lex, ERA5/GFS, NHTSA vPIC), provenance in every response. You only pay for answers.
68 $0.01 0.00% $0.69 13 Base/SOL
● PipeForge x402 Infrastructure Inspector
Description
Pay-per-request infrastructure inspection API for AI agents and automated clients. For $0.02 USDC on Algorand MainNet, it returns structured DNS, HTTP/S, TLS, redirect, latency, and security-header data for a public Internet host. No account, API key, or subscription required.
1 $0.02 28.00% --- ---
○ witness
Description
Independent fact + signed receipt via x402. Free POST /quote then pay POST /witness twice for the same method ($0.02 ceiling). Base and Solana USDC.
1 $0.01 40.00% $0.36 6 Base/SOL
○ loophole tape
Description
Real-time pump.fun and Robinhood Chain (Pons V2) launch intelligence, paid per request with x402: USDC on Solana or on Base (both settled by Coinbase CDP), USDG on Robinhood Chain, USDT0 on X Layer; ?rail=base|solana|usdg|xlayer puts your network first. A prepaid API key ($2.00) or a $0.10 trial key pays any route for clients with no x402 wallet. 31 MCP tools (8 free) at /mcp. Rug checks for a pump.fun mint from $0.005 (batch of 25 for $0.04) with calibrated probabilities (P(true graduation) at any age, validation tables at /v1/calibration); a one-word verdict with a signed share card ($0.01); screened new launches ranked by graduation odds ($0.01); settled outcome labels by a public rule ($0.001); holders and trade flow for a mint ($0.01 each); full mint risk cards with create-slot bundle and insider shares, creator reputation as knowable at launch; for any other Solana SPL mint a thin card with mint/freeze authority and Token-2022 take/block/tax flags ($0.025). Paste a pump.fun, gmgn, solscan, birdeye or jup.ag link instead of a mint. Robinhood Chain launch, curve and per-trade cards on the exact Pons constant-product model including the per-launch creator tax. Daily bulk datasets ($5.00, parquet). Free: market regime, radar, delayed samples of every paid shape, stats pages, Atom feeds, a public daily track record, OpenAPI, llms.txt, /.well-known/x402. Every number comes from our own capture of the chains, not resold from another API.
19 $0.001 58.62% $2 26 Base/SOL
● Web Search & Data API — SERP, page reader & scrapers
Description
Pay-per-call web search and web data for AI agents. Multi-engine SERP (web + news, batch, rank-fused), search-and-read (top hits to markdown in one call), URL-to-markdown scraping, Google Trends (interest over time, related queries/topics, by region), structured data (WHOIS/DNS, enrichment, SEC filings, crypto/DeFi, geocoding, weather) and academic search (papers, references, cited-by, lit-review). 43 endpoints, USDC on Base, no key, no signup.
43 $0.005 75.29% $118 39 Base
○ latamref — Latin American government reference data
Description
Latin American and Caribbean government reference data as clean, cited JSON: central-bank policy rates, VAT, corporate and personal income tax, minimum wages, CPI inflation, statutory interest, official FX fixes (Brazil's PTAX, Colombia's TRM and Mexico's Banxico FIX) and public holidays across 22 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Regional holiday law is modelled from the instrument that creates it (Argentina movable transfers, Colombia Emiliani Monday shifts, Chile Ley 20.983, Ecuador non-recoverable rest days); where a rule could not be established it is refused, not invented. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for Mexico) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup. Public holidays are free. Brazil is the free evaluation country.
12 $0.002 80.70% $0 0 Base
○ asiaref
Description
Verified government reference data for 28 Asian countries: central-bank policy rates, VAT/GST, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or revenue authority, with effective-from and last-confirmed dates. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for the United Arab Emirates) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup.
13 $0.002 80.70% $33 ·sh 14 Base
○ ausref — Australasian government reference data
Description
Australasian government reference data as clean, cited JSON: central-bank policy rates, VAT/GST, corporate and personal income tax, minimum wages, CPI inflation, statutory interest, withholding tax, social contributions and public holidays across 8 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for Australia) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup. Public holidays are free. Australia is the free evaluation country.
12 $0.002 80.70% $0 0 Base
○ AfriRef - Pan-African government reference data
Description
Verified government reference data for 34 African countries: central-bank policy rates, VAT, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or revenue authority, with effective-from and last-confirmed dates, and flagged when past its expected update cycle. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for Kenya and Nigeria) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup. Also: GET /v1/domain/check?domain=<name> ($0.01). Use when you need a quick graded audit of a domain's email security (SPF, DKIM, DMARC, MX), its TLS certificate on 443, and Microsoft 365 tenant detection, with exact fix records. $0.01 per domain.
21 $0.002 80.70% $33 ·sh 14 Base
○ usaref — North American government reference data
Description
North and Central American government reference data as clean, cited JSON: central-bank policy rates, VAT and sales tax, corporate and personal income tax, minimum wages, CPI inflation, official FX fixes and public holidays across 10 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Includes sub-national public-holiday calendars for 10 US states and all 13 Canadian provinces and territories, each cited to that jurisdiction's own statute rather than inferred from a federal list. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for the United States, Canada and Mexico) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup. Public holidays are free. The United States is the free evaluation country.
12 $0.002 80.70% $0 0 Base
○ mearef — Middle Eastern government reference data
Description
Middle Eastern government reference data as clean, cited JSON: central-bank policy rates, VAT, corporate and personal income tax, minimum wages, CPI inflation, statutory interest, withholding tax, social contributions and public holidays across 9 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for the United Arab Emirates) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup. Public holidays are free. The United Arab Emirates is the free evaluation country.
12 $0.002 80.70% $0 0 Base
○ euroref — European government reference data
Description
European government reference data as clean, cited JSON: ECB and Bank of England policy rates, VAT with reduced and zero bands, corporate and personal income tax, minimum wages, CPI inflation, statutory late-payment interest, official central-bank FX fixes and public holidays across 34 countries plus EU-level rates. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Also served: sub-national holiday calendars for Germany's 16 Länder and the four UK nations, point-in-time reads via ?as_at=YYYY-MM-DD, and settlement-date conventions including the enacted EU T+1 transition from 11 October 2027. Finished jobs, one paid call returning one cited dossier: cost this hire ($0.50, POST /v1/jobs/cost-hire: wage-floor verdict, employer and employee contributions, total employer cost and first working day for Germany, Spain, the UK, Italy and Poland) and charge this sale ($0.50, POST /v1/jobs/charge-sale, or $0.75 with a signed certified extract of the governing rate: whether to charge VAT, which country's and how much, under EU, UK and South African place-of-supply rules). Anything that cannot be answered in full is refused free, with no charge. One free catalog of all seven regional brands: https://afriref.dev/fleet/catalog.json. Paid per call in USDC on Base via x402 or MPP, no key, no signup. Public holidays are free.
12 $0.002 80.70% $0 0 Base
○ Azimuth
Description
Radio-frequency positioning DePIN for AI agents: pay-per-call location APIs (estimate a position from cellular observations) plus receiver-node registration and status. USDC on Solana and Base, x402 v2, with machine-readable discovery at /.well-known/x402 and a catalog at /api/x402/catalog.
2 $0.001 84.13% $0.001 1 Base/SOL
● LeadSuperstore.net — Autonomous B2B & SMB Lead Scraping x402 API
Description
On-demand SMB and B2B lead scraping, SSL/CWV/WCAG technical flaw enrichment, and real-time ping-tree lead marketplace ($0.25 USDC per 10 leads on Base Mainnet 8453 or bilateral service barter).
2 $0.05 90.59% $0 0 Base
○ Machine Shop — Catalog Update Gate and data tools
Description
Turn existing Apify product dataset exports into safe catalog updates. Reconcile against a previous accepted snapshot and explicit flat contract; quarantine duplicate conflicts, invalid prices and schema drift. Catalog Gate costs 0.050000 USDC per batch on Base, with free schema, example and HTTP/MCP previews. Additional text, document and structured-data tools have separate published prices. No source fetching or inferred deletions.
30 $0.004 94.12% $0.25 4 Base
● Sippar Token Market Data
Description
Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the required "Powered by Nansen API" attribution). Neutral facts only, no ratings, no predictions, not investment advice.
5 $0.0035 97.65% $20 4 Base
● ScorpTech Recon x402 API
Description
Pay-per-call security, OSINT and web-data tools for AI agents: HTTP security-header audit, email auth (SPF/DKIM/DMARC), domain intel, phishing score, CVE lookup, npm/PyPI package risk, Solana transaction decode, URL to markdown, DNS dump, certificate-transparency subdomains, x402 endpoint preflight and more (22 tools). x402 v2, exact scheme, USDC on Solana mainnet, $0.005-$0.01 per call, no signup or API key.
22 $0.005 97.65% $0.02 1 SOL
● FuelTax IFTA Rates API
Description
Human-reviewed IFTA quarterly tax rates, jurisdiction registry, footnotes, and USD/CAD exchange for trucking fleets and agents. USDC on Base via x402.
4 $0.002 98.82% $0.03 5 Base
◐ Maxwell International Data
Description
Pay-per-call JSON over x402 (USDC on Base or Solana, Coinbase CDP facilitator). Public records: SEC EDGAR (companies, filings, financials), OFAC sanctions, NVD CVEs, openFDA, FRED and ECB macro, USPTO patents, CourtListener, company registers, legislation and open-data portals of 13 countries and the EU, UK Companies House, domain RDAP lookups. Travel: ski resort inventory, lift-ticket prices and quotes, live resort conditions, restaurants and menus near resorts, and a Trip Wizard (free trip map, then getting there, rental, bars, attractions, lodging or a bundle). Weather: NOAA/NWS. Also crypto quotes, npm cards, x402 Doctor and endpoint checks, token safety, and a pay-per-call LLM chat (maxwell-chat). OpenAPI at /openapi.json, discovery at /.well-known/x402, terms at /terms.json.
85 $0.002 98.82% $20 38 Base/SOL
● ApiToll Facebook Ad Library
Description
Searches the public Facebook Ad Library by keyword, advertiser or page and returns the full ad creative: headline, body copy, CTA and destination link, media URLs, run dates and platform mix across Facebook, Instagram, Messenger and Threads. Also serves TikTok Top Ads by country.
4 $0.03 100.00% $24 12 Base/SOL
● HCAD Harris County Property-Tax API
Description
Assessment-protest outcomes (value before vs. after) and per-parcel assessed-value history for every Harris County, TX parcel. Free address search; paid per-parcel routes $0.02-$0.05 via x402 on Base. No owner names.
1 $0.02 100.00% $0 0 Base
● ForgeMesh ShopScout
Description
Agent shopping API: search the Shopify Global Catalog, refresh variant offers, rank offers by item price, and compare single-seller vs split-basket shipping plans from supplied rules. $0.01 USDC per call via x402 on Base. No purchases; tax, duties and landed cost not verified.
4 $0.01 100.00% $0.24 5 Base
● txdecode
Description
Decode any confirmed Base (mainnet) transaction into a human-readable action plus normalized asset movements (token, amount, USD value). Pay-per-call via x402 — $0.005 USDC, no signup, no API key.
1 $0.005 100.00% $0 0 Base
● Agent Search (CyberWareX)
Description
Web search API for agents
1 $0.003 100.00% $0 0 Base
25 of 442 services ── category: Data ── all services
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