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 ── 462 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 |
|---|---|---|---|---|---|---|---|---|
| ● | OrionCMD Site Checks | DescriptionOutside-in checks for any domain: certificate details from CT logs plus a live HTTPS probe, DNS records with SPF/DMARC, registration expiry via RDAP, and a combined site-health call. $0.01 per check, $0.03 for the bundle. Also available as a remote MCP server at /mcp. | 4 | $0.01 | 100.00% | $0 | 0 | Base |
| ● | Groundcheck | DescriptionGroundcheck is verified enrichment for AI agents. Send a factual claim and it returns a machine verified verdict with a confidence score and cited sources, grounded against live web sources. Identity protocols verify who an agent is; Groundcheck verifies what it says. Single claim grounding is free. Paid endpoints over x402: claim extraction and instrument resolution at 0.005 USDC, document grounding at 0.02, and delivery attestation at 0.05, which returns a signed receipt binding the x402 payment to the delivered content, verifiable offline. v1 and v2 both accepted. No account and no API key. | 4 | $0.005 | 100.00% | $0 | 0 | Base |
| ● | Quant Agent Shop | DescriptionPay-per-call web tools for AI agents: Google web search, clean page reading as Markdown, and PDFs from Markdown or a URL. USDC on Base over x402, no account or API key; failed calls are not charged. | 4 | $0.0099 | 100.00% | --- | --- | Base |
| ● | Recall Kitchen | DescriptionRecall Kitchen is an MCP server and API giving AI agents real-time access to food and product recall data. Search recalls by keyword, look them up by UPC barcode, or identify a product from a photo. Tools: search_product_recalls, search_product_recalls_by_upc, search_product_recalls_from_image. Free API keys available, or pay per call with x402 at $0.025 USDC/call on Base. | 1 | $0.025 | 100.00% | $0.03 | 1 | Base |
| ● | QRCode.Pub Agent Tools | DescriptionPay-per-call utility endpoints for agents: QR code image generation (PNG/SVG), clean Markdown + links extraction from any public web page, and OpenGraph/Twitter/JSON-LD metadata extraction. USDC on Base and Solana, no account needed. Free discovery catalog at /x402 and /.well-known/x402, OpenAPI at /openapi.json. | 3 | $0.005 | 100.00% | $0.04 | 3 | Base/SOL |
| ● | Recompete Radar | DescriptionPay-per-call federal contract award expiration evidence for research agents, sourced from official USAspending records with source links and deterministic receipts. | 1 | $0.03 | 100.00% | $0.0063333333 ·sh | 4 | Base/SOL |
| ● | Vokko | DescriptionMulti-protocol capability index for the agent web (UCP, ACP, AP2, TAP, MCP, A2A, x402, MPP, llms.txt, OpenAPI). Cached host lookups are free; live re-probe is $0.02 USDC on Base via x402 (or €29/mo for origin owners). | 1 | $0.02 | 100.00% | $0.03 | 4 | Base |
| ● | BNM Data Shop | DescriptionOfficial public-data x402 shop: 71 paid GETs. Tables /ticks and /import-alerts are $0.05 for the entire current snapshot; ETag / If-None-Match and ?since= return HTTP 304 unpaid when unchanged. Body doors: $0.02 per ?id= or $0.05 per page of 10. USDC on Base. Live catalog: /.well-known/x402. | 71 | $0.05 | 100.00% | $0.10 | 2 | Base |
| ● | ForgeMesh Fare Intelligence | DescriptionPay-per-call flight fare API on Base. A single paid endpoint returns price observations for an origin and destination route, a historical median comparison, and a buy or wait recommendation. Fare data comes from the Travelpayouts provider. $0.10 per query. | 1 | $0.10 | 100.00% | $0.11 | 9 | Base |
| ● | Devryno | DescriptionTiny paid web services for agents. Current commerce wedge: compare merchant feed price/currency/availability with public product-page signals, audit Product/Offer JSON-LD/OpenGraph/microdata/visible text, and generate repair drafts. | 4 | $0.01 | 100.00% | $0.01 | 3 | Base |
| ● | LoneStarOracle TokenLaunch | DescriptionScans recently launched token pools on Base, Ethereum and Arbitrum, returning pool age, liquidity, FDV and buy/sell activity. Lookback window and minimum liquidity are configurable per request. | 1 | $0.05 | 100.00% | $0.89 ·sh | 43 | Base/SOL |
| ● | Semagram | DescriptionSemantic search over Telegram — 1M+ channels, groups and bots. Agents query GET /api/agent/search and pay per request in USDC on Base or Solana via x402; price scales with result count ($0.01 per 100 results). | 1 | $0.01 | 100.00% | $0.07 | 3 | Base/SOL |
12 of 462 services ── category: Data ── all services
Measurement methodology
Page snapshot as of .