# GENESIS Agent Tools — OpenAPI Breaking Change Detector

> GENESIS Agent Tools — OpenAPI Breaking Change Detector is a paid API for AI agents from genesis-agent-tools.genesisagenttools.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-01).

Analyzes two OpenAPI/JSON schemas and determines whether the changes between versions introduce breaking compatibility issues

## Facts

- Endpoint: POST https://genesis-agent-tools.genesisagenttools.workers.dev/api/openapi-breaking-change?utm_source=zero.xyz
- Price: $0.05/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-openapi-breaking-change-detector-fb056e5f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hgg3LhCRuPQjxnsCcGEl0

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-openapi-breaking-change-detector-fb056e5f -d '<json body>'
```

Example prompt: Check whether my new API spec introduces any breaking changes compared to the old one — here's the current schema and the previous schema I need to compare.

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call, cryptographically verifiable check for OpenAPI or JSON schema breaking changes — especially in agent-driven CI/CD pipelines, API governance workflows, or automated upgrade safety checks where you want a machine-readable severity verdict without setting up your own diff tooling.

## Known failure modes

- Missing `current` or `previous` schema fields returns a validation error
- Malformed or non-object JSON schemas may cause parsing failures
- Payment of $0.05 USDC via x402 required — unpaid requests return 402
- Large or deeply nested schemas may increase processing time or hit size limits
- Schemas with non-standard OpenAPI extensions may not be fully analyzed

## 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 boolean `pass` field (true if no breaking changes detected), a `compatibility_severity` string classifying how severe any detected changes are, and a cryptographic `signature` for verifying the result's authenticity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "current",
  "previous"
 ],
 "properties": {
  "current": {
   "type": "object"
  },
  "previous": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "pass": {
   "type": "boolean"
  },
  "signature": {
   "type": "string"
  },
  "compatibility_severity": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/genesis-agent-tools-openapi-breaking-change-detector-fb056e5f/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)