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K2THINK_FIXED.md

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✅ K2-Think Authentication - FIXED!

Date: 2025-02-08

Problem

K2-Think API was returning 401 Unauthorized errors with multiple endpoint attempts.

Solution Found

The API key IFM-FKSKeh0mN28qkOp8 is for IFM's K2-Think API, not Kimi K2.

Correct Configuration:

  • Endpoint: https://api.k2think.ai/v1/chat/completions
  • Model: MBZUAI-IFM/K2-Think-v2
  • Auth Method: Authorization: Bearer {API_KEY}
  • Base URL: https://api.k2think.ai

Changes Made

  1. Updated backend/services/k2think_client.py:

    • Changed base URL from https://kimi-k2.ai/api to https://api.k2think.ai
    • Changed model from kimi-k2-thinking to MBZUAI-IFM/K2-Think-v2
    • Changed auth header from X-API-Key to Authorization: Bearer

  2. Verified connection:

    • ✅ Connection test passed
    • ✅ Reasoning test passed
    • ✅ All AI services working

Test Results

✅ Dedalus Labs: Connected
✅ K2-Think: Connected
✅ Reasoning capability: Working

Next Steps

  • ✅ Both AI services ready
  • ✅ Can now implement Agents 3.0 and 4.0 (Gap Hypothesis, Explanation Composer)
  • ✅ All agents can proceed with full AI capabilities

Status: ✅ RESOLVED - All systems operational!