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mcpfax-reliability.bowling-anthony.workers.dev preflight
https://mcpfax-reliability.bowling-anthony.workers.dev/preflight
answers 402
Advisory preflight on one endpoint before a consequential call: a bounded live probe (reachable, status, latency, MCP initialize, current x402 price and payTo) joined to our observed history (reliability over a stated window, payTo and price changes, first seen). Returns ALLOW, WARN or UNKNOWN. Never a guarantee. No evidence, no charge.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.008
- Network
- base
- Pay to
- 0x1831f336585a6C67B6A954d28f3E07F44C4EEBbd
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 60 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:16:21.380Z (30d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmcpfax-reliability.bowling-anthony.workers.dev%2Fpreflight"