x402 · USDC · no signup · no API key

Data agents can buy now — and history they cannot recreate later.

Cheap snapshot utilities handle immediate tasks. Our accumulating technical-history dataset records changes over time so future buyers can ask questions a one-off fetch cannot answer.

See history sample OpenAPI Agent docs Bazaar status

Production products

Low-friction utility

HTTP Inspector

$0.005
USDC · Base mainnet · per request
  • HTTP status
  • Redirect chain
  • Response latency
  • Useful response headers
GET /api/http-check?url=https://example.com
Convenience bundle

Website Snapshot

$0.09
USDC · Base mainnet · per snapshot
  • HTTP + latency + redirects
  • DNS footprint
  • Security headers
  • SEO + technology signals
  • robots.txt + sitemap.xml
  • Assessment
GET /api/site-intelligence?url=https://example.com
View snapshot sample →
BETA · DATASET GROWING

Site History

$0.05
USDC · Base mainnet · per lookup
  • Technical timeline across captures
  • Status / latency / redirect changes
  • DNS and nameserver changes
  • Security-header changes
  • Technology and SEO changes
  • Machine-readable change feed
GET /api/site-history?domain=blackhawkjapan.com
View live history sample →
The moat is running now

The dataset gets harder to reproduce every day.

LIVE
snapshot indexHistory capture pipeline is live and preserving points.
6
domains trackedInitial public technical-history cohort.
4×
captures / dayState accumulates automatically without a buyer call.
Agent-native checkout

Discover → 402 → pay → JSON.

Production resources expose Base-mainnet x402 challenges and machine-readable schemas. No account provisioning is required.

GET https://rx7-x402.vercel.app/api/site-history?domain=blackhawkjapan.com
→ 402 Payment Required on Base mainnet
→ x402 USDC settlement
→ 200 accumulated history + change feed

Next compounding products

Domain WatchPersistent monitoring sold as time, not a one-shot snapshot.
Paid MCPPut payable tools directly in agent tool lists once the current x402/MCP SDK boundary is validated.
Vertical DataStructured datasets where normalized history and domain expertise create real defensibility.