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x402.agentutility.ai tool-call-diff
https://x402.agentutility.ai/tool-call-diff
answers 402
Compare two agent run sequences and see how their tool calls differ. Send before and after arrays of tool calls (name/args or tool/arguments shape) and get back which calls were added, removed, or reordered, plus per-call argument drift with the exact changed argument paths from a deep compare. The result is exact and reproducible: the same replay comparison always returns the same diff. Built for
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.008
- Network
- base
- Pay to
- 0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 10 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:16:10.305Z (30d ago)
- Category
- ai-inference
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curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402.agentutility.ai%2Ftool-call-diff"