# GENESIS Agent Tools — Prediction Calibration

> GENESIS Agent Tools — Prediction Calibration is a paid API for AI agents from genesis-agent-tools.genesisagenttools.workers.dev, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-01).

Computes Brier score and calibration quality for a set of probability-outcome pairs to assess how well-calibrated an agent's predictions are

## Facts

- Endpoint: POST https://genesis-agent-tools.genesisagenttools.workers.dev/api/tools/prediction-calibration?utm_source=zero.xyz
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/genesis-agent-tools-prediction-calibration-7af46376
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_resLCXqXsePXtWg6KV4t2

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability genesis-agent-tools-prediction-calibration-7af46376 -d '<json body>'
```

Example prompt: Score the calibration of these prediction pairs for me — I have a list of probability-outcome pairs where I predicted things like 0.8 probability and the actual result was 1 or 0, and I want to know the Brier score and whether my estimates are well-calibrated.

## When to prefer this

Choose this endpoint when you need a pay-per-call, agent-native calibration check using the x402 micropayment protocol on Base USDC — ideal for autonomous agents that need to self-evaluate prediction quality without a persistent subscription. Prefer over custom implementations when you want a quick Brier score plus a qualitative calibration label in a single API call.

## Known failure modes

- Missing or empty 'pairs' array returns validation error
- Pairs with probabilities outside [0,1] range may cause computation errors
- Outcomes that are not binary (0/1) may produce unexpected results
- Payment failure via x402 protocol blocks the request
- Very large arrays may hit timeout or size limits on Cloudflare Workers

## How this service works

Pay-per-call x402 APIs for autonomous agents on Base USDC: API compatibility analysis, bounded HTTP/JSON workflows, URL evidence analysis, crypto price consensus, and agent/MCP readiness checks.

## Output

Returns a numeric Brier score (lower is better, 0 is perfect) and a human-readable calibration quality string (e.g. 'well-calibrated', 'overconfident', 'underconfident') summarizing how accurately the submitted probability estimates matched actual outcomes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "pairs"
 ],
 "properties": {
  "pairs": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "brier_score": {
   "type": "number"
  },
  "calibration": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/genesis-agent-tools-prediction-calibration-7af46376/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis-agent-tools.genesisagenttools.workers.dev](https://www.zero.xyz/host/genesis-agent-tools.genesisagenttools.workers.dev/llms.txt)