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Agent Rest Stop - Stale Quote Checker
x402
Agent Rest Stop - Stale Quote Checker is a paid API for AI agents from agent-gas-station.agent-gas-station.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).
Checks whether a previously obtained quote is fresh or stale based on a configurable maximum age in seconds.
Price / call$0.01
Success—
StatusUnknown
How this service works
Fresh or stale against a max age.
Output
Returns a freshness determination indicating whether the provided quote timestamp falls within the allowed max age window — effectively a fresh or stale verdict based on elapsed time since quoted_at versus max_age_sec.
Example use cases
Validate stale swap quote before executing
“I fetched a swap quote at 2024-06-01T15:30:00Z — can you check if it's still fresh with a max age of 60 seconds before I go ahead with the trade?”
Cache freshness check for stablecoin price
“I have a cached stablecoin price quote from 2024-06-01T09:45:00Z. Is it still valid if my system allows a maximum age of 120 seconds?”
Agent pipeline quote expiry guard
“Before my agent reuses the quote it grabbed at 2024-06-01T08:00:00Z, check if it's still within the 90-second freshness window so we don't act on stale data.”
Technical details
Endpoint
POSThttps://agent-gas-station.agent-gas-station.workers.dev/v1/StaleQuote?utm_source=zero.xyzWhen to prefer
Use this endpoint when your agent needs a lightweight, paid gatekeeper check to determine whether a cached or previously obtained quote is still usable before acting on it. It is ideal for agentic pipelines that cache quotes and need a simple freshness guard without implementing custom time logic locally.
Side effects
- Missing or malformed quoted_at timestamp returns an error
- Invalid or non-numeric max_age_sec causes a validation failure
- Payment not attached results in 402 Payment Required
- Extremely large max_age_sec values may be rejected or clamped
- Clock skew between caller and server may produce unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| quoted_at | string | |
| max_age_sec | string |
Tags
x402
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