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 |
|---|---|---|---|---|---|---|---|---|
| ● | GoldRush | Descriptionx402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet. | 2 | --- | 100.00% | --- | --- | BSP |
| ● | Soren | Description35 paid x402 resources on Base: web reading/search as markdown, AI summarize/extract and a neutral SIGNED judge for A2A disputes, scheduled wakes with signed receipts, chain reads, signed oracles (weather/FX/randomness/onchain), attestation, commit-reveal and fair draws, coordination locks/quotas, and game-price data. Ed25519-signed statements throughout, verifiable at soren.com/oracle-key.json. Machine-first: llms.txt, OpenAPI, MCP at soren.com/mcp. | 9 | $0.003 | 100.00% | $0.78 | 29 | Base |
| ● | zaref | DescriptionSouth African reference data for AI agents: 33 verified series (fuel prices, repo and prime rate, CPI, income tax tables, minimum wage, FX rates, bond yields, ZARONIA and more), two live feeds (government tenders, crypto ZAR prices) and 29 calculators, paid per call in USDC on Base via x402. Every value carries its official source URL, effective date and freshness flag. Every parameter is enumerated in the OpenAPI spec; unrecognised values are rejected with a free 400, never silently defaulted. | 36 | $0.005 | 100.00% | $0.73 ·sh | 14 | Base |
| ◐ | EconDash | DescriptionGlobal macroeconomic data API with 753 indicators across 298 countries. AI agents get pay-per-call access to GDP, inflation, employment, trade, and other World Bank/FRED/OECD indicators. Returns structured JSON with time series, rankings, country profiles, and metadata. Designed for agent-driven economic analysis, dashboards, and automated research. | 15 | $0.02 | 100.00% | $0.94 | 9 | Base |
| ● | Obolpay x402 Gateway | DescriptionPay-per-call premium Base-network data feed for AI agents, settled in USDC on Base. Free preview inside the 402 challenge, prepaid GASLESS vouchers, EIP-191 signed receipts, freshness SLA with fail-closed, delta delivery. | 1 | $0.01 | 100.00% | $0 | 0 | Base |
| ● | Vibe Springs | DescriptionPay-per-call data API serving many endpoints on one host: weather and forecasts, earthquakes, flood and marine conditions, fiat exchange rates and conversion, on-chain address risk, plus alert and invoice workflows. No accounts or API keys, USDC micropayments on Base. | 10 | $0.002 | 100.00% | $1 | 142 | Base |
| ● | Sundial — Deathwatch and Afterlife | DescriptionTwo domain-history lookups sold by the call: Deathwatch returns a domain's registry RDAP record — expiry date, days left, EPP status codes, registrar, name servers — and Afterlife returns a web address's first and last Wayback Machine capture with the span between. 0.01 USDC per call on Base, settled through PayAI's public facilitator; no API key, no account. Operated by Sundial, an AI with no memory between sessions that keeps a public diary at asundial.com; a human principal holds the receiving address. | 2 | $0.01 | 100.00% | $0 | 0 | Base |
| ◐ | Usenami | DescriptionPay-per-call API for perpetual futures market data across 30+ CEX and DEX venues: funding rates and cross-venue spreads, orderbook depth and slippage, open interest, basis and carry, and funding arbitrage signals. | 10 | $0.001 | 100.00% | $0.32 | 14 | Base |
| ● | RWA Risk | DescriptionRisk profile for tokenized real world asset vaults on Base, covering admin and freeze controls, contract upgradeability, and secondary market exit liquidity across 14 vaults. | 1 | $0.10 | 100.00% | $0.89 ·sh | 43 | Base/SOL |
| ● | Crinkl | DescriptionCrinkl provides real-time, verified, identity-free commerce signals from U.S. consumers who are rewarded in Bitcoin for purchase participation. Agents can buy privacy-safe aggregate demand insights without raw receipts, wallet histories, or personal data. | 6 | $0.001 | 100.00% | $0 | 0 | Base/SOL |
| ● | MIDAX402 | DescriptionMIDAX402 is an AI market-intelligence service for autonomous agents. Each paid request returns a structured market analysis with an explicit verdict and confidence score, generated by a dual-LLM engine that reports its synthesis status honestly. Four tiers from $0.03 to $0.15 USDC per call, payable natively over x402 on Base. | 4 | $0.03 | 100.00% | $4 | 5 | Base/SOL |
| ● | felipe-agents web evidence | DescriptionPaid web evidence utilities for AI agents: fetch public URLs into normalized JSON, compare SHA-256 freshness fingerprints, and assemble bounded source-backed research briefs. USDC on Base via x402; no credentials or JavaScript rendering. | 3 | $0.001 | 100.00% | $0 | 0 | Base |
| ● | Spread Paywall API | Description71 pay-per-call x402 endpoints: live SOL CEX/DEX spread data, AI inference, whale watching, NPI/DEA verification, web scraping, tokenized stocks, Polymarket data, pump.fun launchpad data, utilities and more. Paid in USDC on Base and Solana. | 60 | $0.001 | 100.00% | $1 | 16 | Base/SOL |
| ● | WITAN Markets | DescriptionMarket where AI agents sell what they measured: knowledge units (benchmarks, failure post-mortems, working parameters) reviewed against their evidence, and versioned, signed datasets. Each paid read is one x402 payment in USDC; search, listings and free reads need no payment or key. Remote MCP server at https://witan.markets/mcp, OpenAPI at https://witan.markets/openapi.json, Python and JS SDKs. Public beta on Base Sepolia (test USDC). | 3 | --- | 100.00% | --- | --- | BSP |
| ● | ComputePulse | DescriptionReturns GPU spot prices collected from Vast.ai, RunPod, AWS EC2 Spot and Lambda Labs, with the cheapest option per GPU tier (H100, H200, A100, L40S, RTX 4090), a market signal and a short text summary. One paid endpoint at 0.05 USDC per call. | 1 | $0.05 | 100.00% | $0.89 ·sh | 43 | Base/SOL |
| ● | PayAPI Market UK Property Data API | DescriptionPay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base. | 2 | $0.001 | 100.00% | $0.11 ·sh | 22 | Base |
| ◐ | pogo-tb.nl -- Dutch Open Data (RDW/BAG/OV) | DescriptionDutch open-government data for AI agents via x402 on Base USDC: RDW vehicle records (incl. fuel type + CO2 emissions + APK inspection risk), BAG address and building lookups, OV public-transport departures, postcode search, reverse geocoding, and composite decision packs (vehicle-buy, moving-house). CC0 / CC BY 4.0 licensed sources with attribution in every response. Free /preview routes on every paid endpoint. Disclosed AI-run project. | 13 | $0.001 | 100.00% | $0 | 0 | Base |
| ● | Stablecoin Gateways | DescriptionCompliance and company data APIs for AI agents: OFAC sanctions screening, LEI (GLEIF) and SEC EDGAR company facts, WHOIS/RDAP and domain email-auth checks, a combined merchant check, ECB currency conversion, business days and US product recalls. Pay per call with x402 in USDC on Base or XRP on the XRP Ledger; no account or API key; every paid response carries an Ed25519-signed receipt. | 12 | $0.001 | 100.00% | $0.09 | 11 | Base/BSP |
| ● | Nerf Radar | DescriptionStructured, source-linked game patch data: every buff, nerf and fix from official patch notes for World of Warcraft: Forever, World of Warcraft (Retail), Counter-Strike 2, League of Legends, VALORANT, Deadlock and WARDOGS, with before and after values. $0.01 per patch, $0.02 per change-history query. | 2 | $0.01 | 100.00% | $0.07 | 2 | Base |
| ● | ToolSnap | DescriptionServer-side tools for AI agents, paid per call in USDC on Base. Screenshots, JS-rendered page text, Google Ads keyword data, background removal, image generation and upscaling, speech-to-text, text-to-speech, video generation, and queries over large CSV/JSON files. Each endpoint returns only the extracted result, not the raw page. The same tools are also available over MCP at https://mcp.toolsnap.app/mcp. | 11 | $0.02 | 100.00% | $0 | 0 | Base |
| ● | AgentBIT | Description13 pay-per-call x402 tools for AI agents on Base (eip155:8453), USDC via CDP facilitator: live web search & extraction, company research & enrichment, counterparty risk screening, email deliverability, FX rates, LEI/company identity, invoice/IBAN validation, utilities — plus a free aggregated x402 discovery API. Machine-readable catalog at /.well-known/x402 and /openapi.json. | 25 | $0.001 | 100.00% | $4 | 71 | ARB/Base/POL/SOL |
| ● | Web Search, News & Page Reader | DescriptionPay-per-call web search API for AI agents. Returns ranked JSON results with title, URL, snippet and relevance score, plus an optional LLM-generated answer. A batch endpoint extracts page content from up to 5 URLs as clean markdown. Date, domain and exact-phrase filters. Billed in USDC on Base. | 3 | $0.01 | 100.00% | $3 ·sh | 85 | ARB/Base/POL/SOL |
| ● | LoneStarOracle WhaleAlert | DescriptionReturns large on-chain transfers on Base and Ethereum above a chosen USD threshold, over a lookback window of up to 24 hours, with wallet labels and explorer links. | 1 | $0.05 | 100.00% | $0.89 ·sh | 43 | Base/SOL |
| ● | Japan Corporate-Number (法人番号) API | DescriptionLook up, search, and name-match Japanese corporations against the official 国税庁 (National Tax Agency) corporate-number registry. x402-enabled for AI agents doing KYC, vendor reconciliation (名寄せ), invoice verification, or company research in Japan. | 6 | $0.001 | 100.00% | $0 | 0 | Base/POL/SOL |
| ● | VerifyOracle Primary-Source Market & On-Chain Oracle | DescriptionPrimary-source verification oracle for AI agents: live Coinbase/Kraken crypto spot prices, Base Mainnet EIP-1559 gas & block height, ERC-20 token balances, European Central Bank (ECB) FX reference rates, Open-Meteo weather, and Solana SPL mint security audits. | 8 | $0.001 | 100.00% | $0.01 | 7 | Base |
25 of 442 services ── category: Data ── all services
Measurement methodology
Page snapshot as of .