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Delx Commerce — Rate Limit Header Parser
x402
Delx Commerce — Rate Limit Header Parser is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Parses HTTP rate-limit headers from an API response and returns structured rate limit information including limit, remaining, reset, and retry-after values.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a structured JSON object with the parsed rate limit fields: limit (total allowed requests), remaining (requests left), reset (reset timestamp if available), retry_after (seconds to wait), source_headers (list of which headers were found and parsed), and a schema identifier string.
Example use cases
Agent backoff after 429 throttle
“I hit a rate limit on an external API and got these headers back: retry-after is 30, x-ratelimit-limit is 100, x-ratelimit-remaining is 0. Can you parse them and tell me exactly when I can make my next request?”
Normalize rate limits across multiple APIs
“I'm calling three different APIs and each uses slightly different header names for rate limiting. Can you parse the headers from each response and give me a consistent breakdown of limit, remaining, and reset time for all of them?”
Monitor remaining API quota mid-workflow
“Before I continue sending requests, can you check these response headers and tell me how many API calls I have left and whether I'm about to hit the limit? I don't want the workflow to fail halfway through.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/rate-limit-parse?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to automatically interpret HTTP rate-limit headers from third-party API responses — especially when different APIs use non-standard or inconsistent header naming conventions. It is ideal for agents that must self-regulate request pacing, implement backoff strategies, or surface quota information to users without hard-coding header-parsing logic per API.
Side effects
- Missing or unrecognized header names result in null values for limit/remaining/reset
- Malformed header values (non-numeric) may cause parsing errors or null outputs
- If no rate-limit headers are present in the input, result fields will be null or absent
- Payment failure via x402 protocol prevents call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| headers | object | Input field: headers. |
Output
Schema · Response
{
"type": "json",
"example": {
"limit": "100",
"reset": null,
"schema": "delx/util-rate-limit-parse/v1",
"remaining": "12",
"retry_after": "30",
"source_headers": [
"retry-after",
"x-ratelimit-limit",
"x-ratelimit-remaining"
]
}
}Tags
x402
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