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mudko.com x402 citation-check
https://mudko.com/api/x402/citation-check
answers 402
Live AI-citation check: runs fresh probes against major AI assistants and reports whether a domain is cited for its vertical's buying questions — citation rate per provider, list position, and whether the domain's agent-card was discovered. Fresh probes per call (not cached). $0.50 per check. Free companion diagnosis: /api/x402/deep-scan.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.50
- Network
- base
- Pay to
- 0x53598173ce7c26025bab0520d9e9d0c28fbcf7de
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 189 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:22:49.080Z (6d ago)
- Category
- ai-inference
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmudko.com%2Fapi%2Fx402%2Fcitation-check"