PulseFeed x402 API

Endpoints (10 live)

• GET /trust/dataset — Bulk trust data for every x402 service in one call. For builders of trust, uptime and monitoring tools: each service's full profile — 0-100 trust score and pay/avoid verdict, scam flags, receiver stability, on-chain receiver profile, plus the compounding payTo and price change history. Skip scraping hundreds of endpoints. ?all=1 includes dead ones, ?limit=N. Free preview: /status.json, /data/sample. (0.1 USDC on Base)
• GET /pulse — Is this token active right now? Live pulse of any ERC-20 on Base: transfer count, volume and unique senders/receivers over a recent block window — one call, no RPC or indexer needed. ?token=0x... (0.01 USDC on Base)
• GET /whales — Are whales moving this token right now? Large ERC-20 transfers on Base over a recent block window with from/to/amount/tx and a configurable size threshold — spot big moves before they hit the price. ?token=0x... &min=units (0.02 USDC on Base)
• GET /flow — Who is accumulating or dumping this token right now? Smart-money flow on Base: net position change per address over a block window plus a decision-ready accumulation/distribution signal. ?token=0x... (0.02 USDC on Base)
• GET /momentum — Is this token heating up or cooling down? Momentum on Base: current block window versus the previous one — activity and volume with a % delta and a heating/cooling/flat trend. ?token=0x... (0.01 USDC on Base)
• GET /mcp/drift/history — The full MCP supply-chain drift series in one call: every recorded change since 2026-07-30 across the whole registry — ownership swapped, install script added in a later version, repository removed, package unpublished, a removed name republished by someone else. An event exists only because a snapshot from before it does, so this series cannot be rebuilt after the fact. Free feed: last 7 days. (0.1 USDC on Base)
• GET /trust — Is this x402 endpoint safe to pay? Vet an unknown seller BEFORE paying: pay/avoid verdict, 0-100 trust score, live 402 probe, scam flags (payTo hijack, bait-and-switch pricing, honeypot, wrong asset) and an on-chain check of the receiver on Base. Reads x402 v1 (body) AND v2 (PAYMENT-REQUIRED header) — body-only checkers call live v2 services dead. ?endpoint=url; omit for a trust-ranked catalog. (0.004 USDC on Base)
• GET /data/full — The whole agentic-commerce trust dataset in one call: every audited x402 endpoint (trust score, scam flags, on-chain receiver, payTo/price history) AND every audited MCP server (safe/avoid, install-script risk, abandonment) plus incidents with on-chain proof. Cross-domain and longitudinal. NOTE: $1.00 exceeds the default 0.1 USDC cap in x402-fetch — pass maxValue. Free sample: /data/sample (1 USDC on Base)
• GET /lab/e1 — Insertion-path positive control for a measurement experiment (x402-foundation/x402#3045): does a v1-envelope settlement still create a catalog row at the current epoch? Returns a static acknowledgement. (0.011 USDC on Base)
• GET /trust/history — Has this x402 endpoint been trustworthy over time? Track record of one endpoint from continuous independent monitoring: uptime %, the dated chronology of every payTo (receiver) change — the signal that catches hijacks — plus price-change history and trend. Compounding data that cannot be reconstructed after the fact: a snapshot tells you what an endpoint is, this tells you what it has been. ?endpoint=url (8000 on Base)