x402engine GPT-5.6-Terra LLM API

x402

x402engine GPT-5.6-Terra LLM API is a paid API for AI agents from x402engine.app, paid per call via x402, $0.03574/call, status unknown (last checked 2026-10-27).

Call OpenAI's GPT-5.6-Terra model via a pay-per-call HTTP 402 micropayment endpoint, returning a chat completion response in OpenAI-compatible format.

Price / call$0.03574

Seller volume →—

Success—

StatusUnknown

How this service works

x402engine — OpenAI's balanced GPT-5.6 tier for advanced reasoning and agent workflows

Output

Returns an OpenAI-compatible JSON object with the model name, an array of choices each containing the assistant's message content and a finish_reason (e.g. 'stop'), plus a top-level 'content' field with the raw text reply.

Example use cases

Agent reasoning backbone

“I need you to send this prompt to GPT-5.6-Terra and get back its reasoning: 'Given a list of customer complaints, identify the top 3 root causes and suggest fixes.' Use pay-per-call so I don't need a subscription.”

Code review via LLM

“Run this Python function through GPT-5.6-Terra and ask it to find any bugs and suggest improvements — pay with USDC on Base per call.”

Multilingual content drafting

“Have GPT-5.6-Terra write a professional product announcement in both English and Spanish for my new SaaS tool called 'FlowDesk' — charge my USDC balance per request.”

Technical details

Endpoint

POSThttps://x402engine.app/api/llm/gpt-5.6-terra?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need GPT-5.6-Terra specifically (not a generic OpenAI-compatible model) and want pay-per-call billing via USDC micropayments on Base, MegaETH, or Solana — ideal for autonomous agents or pipelines that lack a standing OpenAI subscription, want to avoid rate-limit tiers, or need on-chain verifiable payment for each inference call.

Side effects

402 Payment Required if USDC balance is insufficient or payment header is missing
Invalid or malformed request body returns 400
Model unavailable or overloaded may return 503
Incomplete or truncated responses if max_tokens is too low
Payment network congestion on Base or Solana may delay processing

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "model": "openai/gpt-5.6-terra",
    "choices": [
      {
        "index": 0,
        "message": {
          "role": "assistant",
          "content": "Hello!"
        },
        "finish_reason": "stop"
      }
    ],
    "content": "Hello!"
  }
}

Reviews

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Run ID: run_7f3a9c2e
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