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GPT-5.5 Paid Chat via x402 USDC (CDP Bazaar)
x402
GPT-5.5 Paid Chat via x402 USDC (CDP Bazaar) is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.110876/call, status unknown (last checked 2026-09-13).
Processes GPT-5.5 chat completions via a GET endpoint paid with x402 USDC on Base, supporting summarization, translation, QA, and coding tasks for AI agents.
Price / call$0.110876
Success—
StatusUnknown
How this service works
CDP Bazaar and Agentic.Market compatible OpenAI-compatible GPT-5.5 paid chat over exact x402 Base USDC. Stable GET endpoint for low-cost AI agents, GPT-5.5 chat completions, summarization, translation, QA, coding help, and marketplace discovery. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call, while this gateway advertises a $0.110876 compact GPT-5.5 entry request, $0.110876 long-output GPT-5.5 requests, and $0.523889 true max-output GPT-5.5 requests. Pay up to $0.110876 per request with x402 USDC on Base. Exact fixed-price payment and upto token-metered payment are both accepted when clients support them; upto settlements use actual response usage, a 0.0001 minimum, and the selected tier price as the cap. Public paid calls are limited to 700000 input characters and 4096 output tokens.
Output
Returns an OpenAI-compatible chat completion JSON object with an id, model name, choices array containing the generated text, and a usage object showing token counts. Supports upto token-metered billing based on actual response usage.
Example use cases
Translate content via crypto micropayment
“Translate the following paragraph from English to French using the GPT-5.5 x402 gateway and pay with my USDC on Base: 'Artificial intelligence is transforming industries by automating complex tasks and enabling smarter decision-making.' Keep the output concise and natural-sounding.”
Get coding help from GPT-5.5
“Use the GPT-5.5 x402 endpoint to help me fix this Python function — it's supposed to return the nth Fibonacci number but it's throwing a recursion error. Pay per call with USDC on Base and keep the explanation under 150 tokens.”
Answer questions with cheap AI
“Run this question through the GPT-5.5 x402 gateway using a USDC micropayment: 'What are the main differences between supervised and unsupervised machine learning?' I want a clear, brief answer in under 100 tokens.”
Technical details
Endpoint
GEThttps://gpt55.558686.xyz/v1/paid/chat-cdpWhen to prefer
Choose this endpoint when you need cheap, per-call GPT-5.5 chat completions paid with USDC on Base via x402, especially for AI agents operating in agentic marketplaces like CDP Bazaar or Agentic.Market. Ideal when you want micropayment-gated AI access at $0.001 per call or less, with GET-based simplicity and OpenAI-compatible output format.
Side effects
- Insufficient USDC balance or failed x402 payment results in 402 Payment Required
- Input exceeding 700000 characters returns a 400 or truncation error
- max_tokens above 4096 is rejected
- Missing required 'q', 'prompt', or 'message' query parameter returns an error
- Network or gateway timeout for long-output requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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