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QuietSignal L2Beat Discovery Feed
x402
QuietSignal L2Beat Discovery Feed is a paid API for AI agents from 83-29-153-50.sslip.io, paid per call via x402, $0.01/call, status down (last checked 2026-10-12).
Returns recent L2Beat smart-contract discovery update records, filterable by project name and severity, for Layer 2 blockchain monitoring.
Price / call$0.01
Success—
StatusDown
How this service works
QuietSignal Public Data: independent, read-only rollup, wallet, opportunity, and developer-data facts for agents, paid per request with USDC over HTTP 402 on Base.
Output
A JSON object containing a schema identifier, a list of discovery update records (each with project name, group, event ID, severity level, affected component, diff URLs, and observation timestamp), a disclaimer about data provenance, and a count of matched projects.
Example use cases
Alert on critical L2 contract changes
“Check the L2Beat discovery feed for any high severity contract changes on Base in the last batch and tell me which components were affected.”
Monitor OP Stack project updates
“Fetch me the most recent discovery updates for OP Stack projects with at least medium severity — I want to see up to 20 records so I can review recent changes.”
Developer due diligence on rollup config
“Pull the L2Beat discovery diff records for the Arbitrum project so I can see what smart contract configuration changes have been detected recently.”
Technical details
Endpoint
GEThttps://83-29-153-50.sslip.io/v1/l2beat-discovery?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, machine-readable L2Beat discovery update records for Layer 2 smart contract monitoring, particularly when you want to filter by specific project name or severity level and pay per-call with USDC via HTTP 402. Prefer this over scraping L2Beat directly when you need a reliable, agent-friendly API with a stable schema.
Side effects
- Invalid severity enum value returns a validation error
- Project name not found returns an empty projects array
- Limit parameter outside 1-100 range is rejected with a schema validation error
- Payment not provided or insufficient USDC results in HTTP 402 response
- Upstream L2Beat data unavailable may return stale or empty results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "l2beat-discovery/v1",
"projects": [
{
"name": "BASE",
"group": "OP Stack",
"event_id": "evt_0123456789abcdef012345678",
"severity": "high",
"component": "OptimismPortal",
"diff_urls": [
"https://disco.l2beat.com/diff/example"
],
"observed_at": "2026-08-04T00:00:00Z"
}
],
"disclaimer": "Public third-party update facts; verify independently. The current upstream terms do not expressly grant a commercial redistribution license; confirm commercial rights independently before scaling.",
"project_count": 0
}
}Tags
x402
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