GPT-5.5 Compact Chat x402POST /v1/chat/completions · x402 API by gpt55
OpenAI-compatible GPT-5.5 compact chat completion. Fixed exact x402 Base USDC price $0.0001, 192 output-token public cap, no subscription and no public API key required.
What does this x402 API do?
GPT-5.5 Compact Chat x402. This is an x402-gated POST API resource from gpt55. 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. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 did not invoke this route automatically because doing so was not considered safe
- Resource ID
- fc1e2f04dbc1d67ab39493e8
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://gpt55.558686.xyz/v1/chat/completions", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"replace": "with provider-approved input"
}),
});
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.
- Exact route checked
not safely testable · potentially-mutating-method:POST
- Origin reachable
HEAD https://gpt55.558686.xyz/ returned 200.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
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.