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Key error diagnosis

Moonshot AI | signature invalid

Moonshot AI returning 401 / signature invalid should not be judged from the message alone. Cross-check key shape, Base URL, balance, model permission, region/IP, and visible model list.

Provider
Moonshot AI
China provider route
Error type
signature invalid
medium
Status code
401
signature-invalid
Sample models
4
Kimi K2 0711 · Kimi K2 0905 · Kimi K2.5
Error route summary
Error type
signature-invalid
medium
Provider
Moonshot AI
Status code
401
Read-only check. Detection data burns after 5 minutes.
Read-only check. Detection data burns after 5 minutes.

What this error usually means

Moonshot AI returning 401 / signature invalid should not be judged from the message alone. Cross-check key shape, Base URL, balance, model permission, region/IP, and visible model list.

  • Provider: Moonshot AI
  • Error type: signature invalid
  • Status code: 401

How to prove it during checking

Read-only check. Detection data burns after 5 minutes.

  • Run read-only identity first: confirm whether the key really belongs to Moonshot AI, not just a compatible protocol.
  • Then list models or run a lightweight probe: check whether models like Kimi K2 0711 · Kimi K2 0905 · Kimi K2.5 are visible and return stable evidence.
  • Finally record 401, error body, latency, egress IP, and reproducibility to separate balance, permission, route, or upstream issues.

Next action

signature invalid should not only show failed. The console should return the next move: refill balance, change Base URL, switch model, add permission, change egress IP, hold listing, or monitor.

  • Read-only check. Detection data burns after 5 minutes.
  • China provider route
  • Kimi K2 0711 · Kimi K2 0905 · Kimi K2.5