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Agent Exchange — ML Model Prediction Endpoint
x402
Agent Exchange — ML Model Prediction Endpoint is a paid API for AI agents from store.agentexchange.work, paid per call via x402, $0.09/call, status unknown (last checked 2026-09-13).
Runs a machine learning model prediction via a pay-per-call POST request, returning structured prediction results in USDC via x402 on Base.
Price / call$0.09
Success—
StatusUnknown
How this service works
Machine-payable data APIs for AI agents across web search, on-chain reads, trading data, market judgment, and AI visibility. The canonical x402 catalog currently exposes 85 paid routes. Pay per call in USDC via x402 on Base. No API keys, no signup.
Output
Returns a JSON object containing a predictions array, where each element includes a content field with the model's prediction or output string (e.g. {"predictions":[{"content":"..."}]}).
Example use cases
Pay-per-call classification pipeline
“I need to run classification on a set of instances using the Agent Exchange prediction API — charge me per call in USDC and return the predicted labels without me having to set up any account.”
On-demand model inference for agents
“My agent needs to call a hosted ML model for inference on some input data right now — use the Agent Exchange predict endpoint, pay the $0.09 USDC fee per call, and give me back the prediction content.”
Keyless ML scoring for a prototype
“I'm prototyping something and need ML model predictions without signing up for an API key — can you hit the Agent Exchange predict route with my instances string and handle the USDC payment automatically?”
Technical details
Endpoint
POSThttps://store.agentexchange.work/v1/models/predictWhen to prefer
Choose this endpoint when you need ML model inference on a pay-per-call basis with no API key or signup, and you can settle payments in USDC via x402 on Base. Prefer this over subscription-based ML APIs when usage is sporadic or when you want crypto-native, permissionless access to model predictions.
Side effects
- Payment failure: insufficient USDC balance or x402 payment not accepted — results in 402 Payment Required
- Malformed instances input: non-string or missing instances field may return a 400 Bad Request
- Model unavailable or fallback active: response may contain a generic fallback message like 'Premium Fallback Node Active' rather than a real prediction
- Network/timeout: slow or unavailable backend may result in a 503 or timeout error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| instances | string |
Output
Schema · Response
{
"type": "json",
"example": {
"predictions": [
{
"content": "Premium Fallback Node Active"
}
]
}
}Tags
x402
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