{
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  "description": "OpenAPI Changelog Generator: Diff two OpenAPI specs and generate a structured breaking-change changelog (no LLM — deterministic diff). Provide base_spec_url and new_spec. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/changelog_openapi.",
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  "url": "https://x402.freeq.one/tools/changelog_openapi",
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  "x402": true,
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    "method": "POST",
    "last_updated": "2026-10-26T02:56:18.071Z"
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    "uptime_pct": 100,
    "latency_ms": 175,
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