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Model Access Gateway – GPT-6.1-Sol via x402
x402
Model Access Gateway – GPT-6.1-Sol via x402 is a paid API for AI agents from agent402-arb.rosariovitale0096.workers.dev, paid per call via x402, $0.0014/call, status unknown (last checked 2026-10-15).
Runs OpenAI-compatible chat completions against the GPT-6.1-Sol model, billed per-request in USDC on Base via x402 with no account or API key required.
Price / call$0.0014
Success—
StatusUnknown
How this service works
GPT-6.1 Sol API (openai/gpt-6.1-sol): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need GPT-6.1 Sol on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
Output
Returns a standard OpenAI chat.completion JSON object containing the assistant's reply message, the model used (openai/gpt-6.1-sol), token usage breakdown (prompt, completion, total), finish reason, and a unique completion ID.
Example use cases
Permissionless LLM call in agent pipeline
“I need to call GPT-6.1-Sol to classify a customer support ticket as 'billing', 'technical', or 'general' — pay per request in USDC on Base, no API key. The ticket text is: 'My invoice shows a double charge from last month.'”
One-off AI text generation without subscription
“Generate a three-sentence product description for my new ergonomic desk chair using GPT-6.1-Sol, and just charge the micropayment in USDC automatically — I don't want to set up an API account.”
Agent-to-agent LLM delegation
“Have the GPT-6.1-Sol model draft a concise reply to this email on my behalf and pay for the inference with USDC on Base via x402: the email says 'Can we reschedule our meeting to Thursday at 3pm?'”
Technical details
Endpoint
POSThttps://agent402-arb.rosariovitale0096.workers.dev/llm/gpt-6.1-sol?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need OpenAI-compatible chat completions with no account setup, no API key management, and automatic per-request payment in USDC on Base via x402. Ideal for agentic and autonomous workflows where the agent pays for its own inference, for one-off tasks where a subscription is overkill, or when integrating crypto-native payment rails directly into an AI pipeline. Prefer alternatives (direct OpenAI API, Anthropic, etc.) if you already have API keys, need guaranteed SLA, or need models not available through this gateway.
Side effects
- Payment failure: x402 micropayment rejected or insufficient USDC balance on Base — request fails with 402 Payment Required
- Invalid body format: missing required 'input' wrapper or incorrect bodyType enum value — returns 400 Bad Request
- Model unavailable: the specific model slug (gpt-6.1-sol) is not available — returns 404 or 503
- Malformed messages array: chat messages not formatted correctly per OpenAI spec — may return 422 or garbled output
- Rate limiting: downstream provider throttles requests — returns 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | Optional: fixed by the route (openai/gpt-6.1-sol) |
| tools | array | |
| stream | boolean | true: server-sent events after payment |
| messages | array | |
| max_tokens | integer | Optional, default 4096 |
| temperature | number | |
| response_format | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-7f3c2a91",
"model": "openai/gpt-6.1-sol",
"usage": {
"total_tokens": 10,
"prompt_tokens": 9,
"completion_tokens": 1
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "OK"
},
"finish_reason": "stop"
}
],
"created": 1791979200
}
}Tags
x402
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