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Gemini 3 Pro via x402 Gateway
x402
Gemini 3 Pro via x402 Gateway is a paid API for AI agents from x402-gateway-production.up.railway.app, paid per call via x402, $0.045000/call, status unknown (last checked 2026-09-13).
Calls Google's Gemini 3 Pro model for advanced reasoning, coding, and multimodal understanding via a pay-per-call x402 gateway
Price / call$0.045000
Success—
StatusUnknown
How this service works
Google's next-gen pro model — advanced reasoning, coding, and multimodal understanding
Output
Returns a text completion from Google's Gemini 3 Pro model, which may include detailed reasoning, code with explanations, answers to complex questions, or analysis of multimodal inputs depending on the prompt provided.
Example use cases
Example prompt
“Use Google's Gemini 3 Pro model to analyze this multi-step engineering problem and generate a well-commented Python solution: 'Given a binary tree, implement an iterator that returns nodes in zigzag level-order traversal, and explain the time and space complexity.'”
Technical details
Endpoint
POSThttps://x402-gateway-production.up.railway.app/api/llm/gemini-3-proWhen to prefer
Choose this endpoint when you need Google's most capable Gemini model for tasks requiring deep reasoning, complex multi-step coding, or multimodal understanding, and you want pay-per-call access without managing a Google API key. Prefer over the flash variant when quality matters more than speed, and over Claude or GPT-4o when you specifically want Google's reasoning architecture or need Gemini's multimodal strengths.
Side effects
- Payment not included or insufficient USDC — 402 Payment Required
- Model overloaded or unavailable — 503 Service Unavailable
- Malformed request body — 400 Bad Request
- Prompt exceeds context window — 400 or 413 error
- Gateway timeout on very long responses — 504
- Content policy violation — 400 or 422 with refusal message
Tags
x402
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