GPT-5.5 x402 Growth PlanGET /v1/paid/x402-growth-plan · x402 API by gpt55
Short canonical x402 seller growth-plan endpoint for machine buyers. Generates a prioritized directory visibility, pricing, buyer onboarding, search keyword, and retest checklist for x402 and paid MCP sellers. Costs $0.009 over x402 Base USDC and has near-zero upstream model cost.
What does this x402 API do?
GPT-5.5 x402 Growth Plan. This is an x402-gated GET API resource from gpt55. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21. 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 confirmed a protocol-valid HTTP 402 quote on 2026-07-21
- Resource ID
- fb99a0df133816128ce1ac12
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://gpt55.558686.xyz/v1/paid/x402-growth-plan", {
method: "GET",
});
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.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://gpt55.558686.xyz/ returned 200.
- Observed in 402-index
Discovered through self-registered.
- 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.