Delx ETag Match /api/v1/x402/etag-match APIPOST /api/v1/x402/etag-match · x402 API by Delx ETag Match

Compare ETag validators including weak tags and If-None-Match lists — 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 alr…

https://api.delx.ai/api/v1/x402/etag-match

What does this x402 API do?

Delx ETag Match /api/v1/x402/etag-match API. This is an x402-gated POST API resource from Delx ETag Match. TOLL·402 did not invoke this route automatically because doing so was not considered safe. No normalized USD price is recorded; the listing names Base and Solana. No settled paid call has been verified.

Published price: No normalized USD price is recorded
Networks: Base · Solana
Latest evidence: TOLL·402 did not invoke this route automatically because doing so was not considered safe
Resource ID: f340d378662167db6ff8a978

USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE

AI CODING TOOLS

quote-check.ts

const response = await fetch("https://api.delx.ai/api/v1/x402/etag-match", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
  "type": "http",
  "method": "POST",
  "bodyType": "json",
  "bodyFieldNames": [
    "etag",
    "other"
  ],
  "pathParamNames": [],
  "queryParamNames": []
}),
});

console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));

// A valid 402 is a quote, not a completed paid call.

Review the provider input schema before running this non-read-only method. No payment code is included.

JSON ↗developer docs →

STATUS HISTORY

JSON RSS

Observed in cdp-bazaar2026-08-25 05:19 UTC
The registry record was observed and retained with provenance.
Exact route checked2026-08-24 06:43 UTC
not safely testable · potentially-mutating-method:POST
Origin reachable2026-08-24 06:39 UTC
HEAD https://api.delx.ai/ returned 200.

What evidence supports this listing?

cdp-bazaarobserved 2026-08-25 · open source record ↗

origin checkHEAD https://api.delx.ai/ → 200 on 2026-08-24

route quotenot invoked automatically · potentially-mutating-method:POST · 2026-08-24

Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →

Which networks and payment options does it accept?

The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.

Baseexact1000 atomic · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Solanaexact1000 atomic · EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v