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x402 AI Gateway Model List
x402
x402 AI Gateway Model List is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns the list of available LLMs, their tiers, per-token prices, and usage caps for the x402 AI inference gateway payable in USDG/USDC on-chain.
Price / call$0.001
Success—
StatusUnknown
How this service works
AI Gateway model list: available LLMs per tier with prices and caps. The FIRST LLM inference gateway payable in USDG on Robinhood Chain (also USDC on Base/Polygon/Arbitrum/Solana). Send {}.
Output
A structured list of available LLM models organized by tier, including model names/identifiers, per-token or per-call pricing, usage caps, supported stablecoins (USDG, USDC), and supported blockchain networks (Robinhood Chain, Base, Polygon, Arbitrum, Solana).
Example use cases
Choosing the cheapest model for a task
“Show me all the LLMs available on the x402 gateway and their per-token prices so I can pick the cheapest one that fits my needs.”
Checking USDG-payable model availability
“Which AI models can I access using USDG on Robinhood Chain through the x402 gateway, and what usage caps apply to each tier?”
Comparing model tiers before building an agent
“Before I build my AI agent, list all the model tiers available on the x402 AI gateway with their prices and limits so I can decide which tier to use.”
Technical details
Endpoint
POSThttps://x402-services-production.up.railway.app/api/ai/modelsWhen to prefer
Use this endpoint when you need a machine-readable catalog of LLMs available through a pay-per-call stablecoin gateway, especially when your agent needs to dynamically select a model based on price or tier, or when you want to verify which models accept USDG on Robinhood Chain vs USDC on other chains. Prefer over manual documentation lookups when building agents that need to self-configure model selection at runtime.
Side effects
- Payment not sent or insufficient — gateway returns 402 Payment Required
- Empty or malformed POST body may cause 400 Bad Request
- Service temporarily unavailable — 503 from Railway hosting
- Model list may be stale if cached; real-time availability not guaranteed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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