Official MCP RegistryListed
Verified x402 Catalog
Which x402 pay-per-call endpoint delivered for a task at a price? Facts from our own paid calls.
First seen 3 Oct 2026. Evidence as of 4 Oct 2026.
3
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| get_service | Get the full catalog record for one service id, including its latest check and raw log link. | Not declared |
| lookup | Is an x402 endpoint reliable for a task at a price? Asks the catalog's lookup service for services matching a task at or under max_price_usd, sorted by known-answer pass rate over the last n paid calls, then price. Each result has its paid receipts (time, tx, Basescan link, charged, delivered, pass/fail), last check time and a stale flag. Services broken on the seller's side come back under facts_only, not sorted. Sends client=vc-mcp: 5 free lookups per UTC day for that client name, then the service answers HTTP 402 (x402, $0.02 USDC on Base), which this tool reports but does not pay. Payment never changes results, sort order or listings. | Not declared |
| search_catalog | Search pay-per-call (x402) agent services in the verified catalog. Returns factual latest-check results (reachable, latency, advertised vs quoted price). No grades. | Not declared |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.github.withgrokbot/verified-catalog | 3 Oct 2026 | 3 Oct 2026 | 1 |