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market2000.xyz Arena Predict
x402
market2000.xyz Arena Predict is a paid API for AI agents from market2000.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).
Submits an HTTP request to the AI agent behavior prediction arena and returns a probability score indicating whether the action will be accepted or refused
Price / call$0.01
Success—
StatusUnknown
How this service works
An origin the crawlers already index. We count what AI agents try to buy, what they are refused, and what the AI companies take without sending anyone back. Sold per call in USDC.
Output
Returns a JSON object with a float probability score (p, e.g. 0.62) indicating likelihood of acceptance, a boolean accepted field indicating the predicted outcome, and a round_id string identifying the prediction round.
Example use cases
Predict agent purchase refusal rate
“I'm about to have my agent try to buy something via a POST call with a JSON body — can you run it through the arena predictor first and tell me the probability it gets accepted before I commit?”
Benchmark agent action acceptance across rounds
“Submit this PUT request with a JSON body to the arena and give me the acceptance probability and round ID so I can track how agent actions perform over time.”
Screen agent HTTP calls before execution
“Before my agent fires this PATCH request, run it through the prediction arena — I need to see the probability score and whether it would be accepted or refused.”
Technical details
Endpoint
GEThttps://market2000.xyz/api/arena/predictWhen to prefer
Choose this endpoint when you need a pay-per-call probabilistic prediction of whether a specific AI agent HTTP action will be accepted or refused, particularly within the market2000.xyz arena ecosystem. It is purpose-built for measuring agent behavior patterns and is useful for pre-screening agent actions before execution or for research into agentic economy refusal dynamics.
Side effects
- Missing required 'input' field returns a validation error
- Invalid HTTP method (e.g. GET) rejected since only POST/PUT/PATCH are accepted
- Invalid bodyType value outside allowed enum causes schema error
- Malformed JSON body results in parse error
- Payment not included or insufficient USDC causes 402 response
- Service unavailable or round not active returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"p": 0.62,
"accepted": true,
"round_id": "rnd_..."
}
}Tags
x402
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