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Delx Header Map Normalize
x402
Delx Header Map Normalize is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Lowercases all HTTP header keys and removes hop-by-hop headers from a provided headers object, returning a normalized headers map as JSON.
Price / call$0.001
Success—
StatusUnknown
How this service works
Lowercase HTTP header keys and drop hop-by-hop headers — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already converte…
Output
A JSON object containing the normalized headers map with all keys converted to lowercase and hop-by-hop headers (such as Connection, Transfer-Encoding, Keep-Alive, Upgrade, Proxy-Authenticate, etc.) removed, leaving only the safe-to-forward, canonically cased headers.
Example use cases
Agent preflight header sanitization
“Before I forward this request to a downstream service, can you normalize these headers — lowercase all keys and strip out any hop-by-hop headers like Connection and Transfer-Encoding: {"X-Request-ID": "abc", "Transfer-Encoding": "chunked", "Content-Type": "application/json", "Connection": "keep-alive"}?”
Canonical header comparison for deduplication
“I need to compare headers across multiple requests but the casing is inconsistent. Can you normalize this headers map so all keys are lowercased and hop-by-hop headers are removed: {"Content-Type": "text/html", "Keep-Alive": "timeout=5", "Cache-Control": "no-cache"}?”
Proxy forwarding header cleanup
“My proxy needs to forward a request but first I need to strip connection-level headers and normalize all keys to lowercase. Here are the headers: {"Authorization": "Bearer token123", "Upgrade": "websocket", "Content-Length": "348", "Connection": "Upgrade"}.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/header-map-normalizeWhen to prefer
Choose this endpoint when you need a deterministic, stateless, low-cost utility to normalize HTTP headers — specifically to lowercase keys and strip hop-by-hop headers — as part of an agent preflight step or request pipeline. Prefer it over writing custom normalization logic when you want a consistent, machine-readable JSON result without side effects or external dependencies.
Side effects
- Missing or empty headers object returns an error or empty result
- Malformed JSON input returns a parse error
- Non-string header values may cause unexpected behavior
- Network timeout if the service is temporarily unavailable
- Payment failure via x402 if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| headers | object | Input field: headers. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"count": 1,
"schema": "delx/util-header-map-normalize/v1",
"dropped": [
"connection"
],
"headers": {
"content-type": "application/json"
}
}
}Tags
x402
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