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).
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| STATUS | NAME | DESCRIPTION | EP | FROM $/REQ | UPTIME · DAILY ROLLUP | VOL 30D | BUYERS 30D | NETWORKS |
|---|---|---|---|---|---|---|---|---|
| ● | x402 Toolbox | DescriptionA toolbox of x402 payment-protocol mechanics: 25 small real endpoints on Base mainnet USDC, each demonstrating a distinct pattern -- oracle attestation, escrow, auction, prediction market, deferred invoicing, subscription reminders, insured data feeds, and more. No API keys, no signup. | 28 | $0.001 | 100.00% | $0 | 0 | Base |
| ◐ | Grokzilla x402 Micro Pay | DescriptionHumanless agent microservices marketplace. Pay-per-call USDC on Base via x402. Native skills include token count, URL normalize, JSON flatten/validate, text diff, HTML clean, keyword extract, AI detector, OSINT graph, SEO, and deep research. Soft titles Person lookup / IP intel lookup reserved for later when those routes return valid 402. | 11 | $0.004 | 100.00% | $5 | 10 | Base |
| ◐ | x402 DEX data, agent utilities & Uniswap v4 hook risk API | DescriptionPay-per-call (x402/USDC on Base) market-data, geocoding, randomness and hook-risk endpoints. Free demo route included. | 50 | $0.01 | 100.00% | $0.88 | 7 | Base |
| ● | CryptoPulse Data API | DescriptionPay-per-call crypto market intelligence for AI agents on Base mainnet (x402 v2, USDC). Spot prices, trending coins, Fear & Greed index, gas prices, OHLC candles, DEX pair liquidity/volume, ERC-20 rug-pull/honeypot risk checks, and top DeFi yields — $0.002 to $0.02 per call. | 9 | $0.002 | 100.00% | $0.13 | 3 | Base/SOL |
| ● | Weather | DescriptionPay-per-call global weather for AI agents (keyless, met.no + open-meteo geocoding): current conditions and hourly/daily forecast by lat+lon or place name. Temperature, humidity, wind, pressure, cloud and condition symbol. No API key. | 3 | $0.001 | 100.00% | --- | --- | Base |
| ● | Fetchgate | DescriptionAgent-builder digital-goods storefront and web-reader API on Cloudflare Workers. GET /v1/products returns a catalog (x402 reference kits, MCP/x402 registries, prompt-injection test corpus and defenses, an eval harness), GET /v1/buy/:id is a standard x402 402-then-pay flow ending in a signed download URL. Also plain URL-to-markdown/metadata reader endpoints. MCP server at /mcp. | 6 | $7.00 | 100.00% | $0.03 | 2 | Base |
| ● | AIMarket | DescriptionSigned real-world data and verifiable computation per call over x402 (USDC on Base): current weather and air quality at a place, the nearest live public sensors, ECVRF fair randomness with an offline-checkable proof, and two MCP security checks (HISTOR transparency log, WARDEN tool-definition scan). | 6 | $0.001 | 100.00% | $0.51 | 18 | Base |
| ● | Linked Panda | DescriptionRead-only x402 API over LinkedIn data: profile and company enrichment, verified work email lookup, post reactions, job posting and ad search. Paid per single request in USDC on Base. | 10 | $0.01 | 100.00% | $32 | 35 | Base |
| ● | Japan Weather Forecast & Warnings API | DescriptionJapanese weather forecasts, meteorological warnings/advisories, and weather discussions, sourced live from 気象庁 (Japan Meteorological Agency). x402-enabled for AI agents that plan travel, logistics, events, or alerts around Japanese weather. | 5 | $0.001 | 100.00% | $0 | 0 | Base/POL/SOL |
| ● | claw402 | DescriptionPay-per-call gateway that resells third-party APIs over x402: CoinAnk crypto derivatives and market indicators plus OpenAI, Anthropic and DeepSeek model access, paid in USDC on Base. | 10 | $0.002 | 100.00% | $1.2k | 175 | Base |
| ● | Moneytest 402 Radar | DescriptionVerified public HTTP 402 and x402 surface catalog with freshness, deterministic digest, public-safe evidence, and Base USDC reward receipts for autonomous agents. | 1 | $0.10 | 100.00% | $0 | 0 | Base |
| ● | cn402 | DescriptionPay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups. Priced from $0.002 to $0.16 in USDC on Base and Solana. | 10 | $0.0022 | 100.00% | $38 ·sh | 65 | Base/SOL |
| ● | SiteCheck | Description225 pay-per-call tools for AI agents, paid per successful call in USDC (Base, Solana, Arc) with x402; failed calls are never charged. Web page to Markdown, PDF and OCR, SEO and security checks, company registers and sanctions screening, SEC filings, multi-chain RPC and token data, prediction markets, crypto prices, translation, speech to text, LLM text tools. Also a remote MCP server at /mcp. | 10 | $0.002 | 100.00% | $10 | 49 | ARB/AVX/Base/POL/SOL |
| ● | Kronos Market Intelligence API | DescriptionReal-time Kronos BTC price forecasting plus volatility regime, funding-rate, Fear & Greed, and Base-mainnet gas tools for AI agents. Pay-per-call in USDC on Base, no account or API key. Free previews and a public accuracy track record (30-window real backtest, including unflattering numbers) at /stats. | 8 | $0.001 | 100.00% | $0.01 | 6 | Base |
| ● | Locus Report | DescriptionProperty and place reports from cited public records: parcel lookup, flood zone, permits, crime, air quality, PFAS, electricity context, assessments and satellite change. | 21 | $0.01 | 100.00% | $10 | 24 | Base/SOL |
| ● | Alien Probe Lookups | DescriptionCompany facts for agents, one paid call each. Company profile ($0.04): domain, name, CIK, ticker or LEI to 22 fields, each with {value, source, as_of} from GLEIF, SEC EDGAR and Wikidata. Legal entity ($0.05): name or domain to one GLEIF LEI record with the match rule. LEI ($0.005), VIN decode ($0.005), NAICS title ($0.004). Served from digest-pinned snapshots; misses and ambiguous names are refused free before payment. | 5 | $0.004 | 100.00% | $0.22 | 7 | Base |
| ● | Kronos Crypto Data & Forecasts | DescriptionPay-per-call real-time crypto market-data API for autonomous agents and trading bots. Covers 16 assets with derivatives intelligence (funding rates, open interest, basis), liquidation cluster maps, options implied volatility, multi-source spot pricing, macro context, and ML price forecasts. No API keys required — x402 USDC micropayments on Base mainnet. Prices range $0.001-$0.10 per call. | 4 | $0.02 | 100.00% | $8 | 38 | Base |
| ● | Shopify & DTC E-Commerce Store Competitive Intelligence (shopify-intel.agentdiet.dev) | DescriptionExtracts live product catalogs, pricing tiers, SKU variants, and stock availability from any Shopify or e-commerce storefront. | 1 | $0.01 | 100.00% | $0 | 0 | Base |
| ● | Mart402 | DescriptionWeb & document extraction APIs for AI agents: URL-to-Markdown extraction, PDF parsing with hallucination-guarded OCR (dual-engine consensus + calibrated confidence + per-segment corroboration, Japanese-strong), invoice field verification, schema-driven structured extraction, and JP company profiles. Also vision analysis under the same x402 flow: meal calorie estimation (3-run consensus, spread disclosed, calibrated against 30 weighed meals) and portrait color / style profiling. Pay per call via x402 (USDC on Base), no account or API key. Free identical sandbox on Base Sepolia at mart402.dev. Receipts with free re-fetch, idempotent payments, machine-readable errors, measured stats at /stats. | 11 | $0.005 | 100.00% | $6 | 14 | Base |
| ● | agentshop | Descriptionagentshop sells analytical macro-economic reports per fetch over x402 (USDC on Base mainnet). 115 prebuilt World Bank reports across 24 categories, 86 indicators, 20 economies, covering every year from 2015 to 2025, plus annual editions and a bespoke endpoint that builds a report from any indicator and economy. Delivery is html, json, or tidy csv. Free machine-readable previews at /preview/{id} (also markdown), a browsable year index at /years, and an MCP endpoint at /mcp. No account, no API key, no signup: an unpaid request returns HTTP 402 with the price and a valid request returns the document. Source: World Bank Open Data (CC BY 4.0), attributed in every document. | 29 | $0.07 | 100.00% | $0.21 | 2 | Base |
| ● | agentstools | Description359 pay-per-call HTTP tools for AI agents on one host: web search and page extraction, cited answers, crypto and DeFi market data, on-chain analysis and contract risk, security and breach checks, US government and regulatory records, and enrichment. No account and no API key - an unpaid request returns an HTTP 402 quote, pay with an X-PAYMENT header and the call is served. USDC on Base; the same catalog is also served over Solana on payai.agentstools.dev. | 20 | $0.002 | 100.00% | $12 | 125 | Base |
| ● | Permit Scouter | DescriptionDaily building permits from Tampa Bay, Florida: City of Tampa, City of Clearwater, and Hillsborough, Pinellas, Pasco and Manatee counties. Roofing and HVAC first. Search by trade, area, job value and date, plus full histories for a permit, a property or a contractor. Pay per query in USDC on Base via x402 ($0.01 to $0.10). Free /coverage and /sample. | 4 | $0.01 | 100.00% | $0.03 | 2 | Base |
| ● | PocketFactory Korean Data API | DescriptionPay-per-call Korean official-data APIs for business registration status, disclosed tax delinquency records, and Korean news search. x402 v2 with USDC on Base mainnet. | 3 | $0.01 | 100.00% | $0 | 0 | Base |
| ● | Crypto ETF Sentinel | DescriptionCurated SEC EDGAR intelligence on US spot crypto ETFs: 107 issuers with regulatory stage, filings feed, comment letters, XBRL financials, POS AM profiles and heuristic pipeline signals with a published accuracy record. Pay per call in USDC on Base or Solana via x402, or subscribe for an API key. | 22 | $0.03 | 100.00% | $9 | 13 | Base/SOL |
| ● | Concordance | DescriptionAggregates 18 free and keyed data sources (SEC EDGAR, FRED, GDELT, arXiv, court opinions, market data, Wikipedia, and more) into 6 x402-priced tools: full-text search, economic/financial time series, cross-category digest, cross-source company briefs, source corroboration scoring, and chronological timelines. | 6 | $0.01 | 100.00% | $0 | 0 | Base/SOL |
25 of 442 services ── category: Data ── all services
Measurement methodology
Page snapshot as of .