Ask before you pay: PulseFeed tells an AI agent whether an x402 payment endpoint is safe to pay — liveness, anomaly scan (receiver-address changes between observations, catalog price vs. challenge price, invalid receivers, asset/network mismatch), on-chain receiver verification on Base, and an open…
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"pulsefeed-x402-trust-oracle","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Not distributed through a package registry we index.
| when | check | result | http | latency | detail |
|---|---|---|---|---|---|
| 2 h ago | a2a card | ok | 200 | 46 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 11 h ago | a2a card | ok | 200 | 95 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 20 h ago | a2a card | ok | 200 | 59 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 28 h ago | a2a card | ok | 200 | 85 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 2 d ago | a2a card | ok | 200 | 93 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 2 d ago | a2a card | ok | 200 | 86 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 2 d ago | a2a card | ok | 200 | 31 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 3 d ago | a2a card | ok | 200 | 47 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 3 d ago | a2a card | ok | 200 | 45 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
| 3 d ago | a2a card | ok | 200 | 97 ms | protocol 1.0 · card: PulseFeed x402 Trust Oracle · 2 skills |
Attributed to the source that supplied each field. Treated as claims, not facts.
Ask before you pay: PulseFeed tells an AI agent whether an x402 payment endpoint is safe to pay — liveness, anomaly scan (receiver-address changes between observations, catalog price vs. challenge price, invalid receivers, asset/network mismatch), on-chain receiver verification on Base, and an open 0-100 Trust Score. Built on a continuous independent audit of the x402 ecosystem (59353 endpoints probed of 135787 tracked, 25% of probed dead or invalid) plus a security audit of the MCP server ecosystem.
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
Every source is kept verbatim. Field changes are logged as events.