hermes - 💡(How to fix) Fix [Bug]: Openrouter - API call failed: AuthenticationError [HTTP 401] [1 participants]

Bug Description

I am using openrouter. I verified that my openrouter api_key is working and I have credits. I also checked api_key value in "/Users/[user]/.hermes/.env", it is correct. When I try to chat in "hermes" application. I am getting following error -

⚠️ API call failed (attempt 1/3): AuthenticationError [HTTP 401] 🔌 Provider: openrouter Model: openai/gpt-5.3-codex 🌐 Endpoint: https://openrouter.ai/api/v1 📝 Error: HTTP 401: User not found. 📋 Details: {'message': 'User not found.', 'code': 401} ⚠️ Non-retryable error (HTTP 401) — trying fallback... ❌ Non-retryable error (HTTP 401): HTTP 401: User not found. ❌ Non-retryable client error (HTTP 401). Aborting. 🔌 Provider: openrouter Model: openai/gpt-5.3-codex 🌐 Endpoint: https://openrouter.ai/api/v1 💡 Your API key was rejected by the provider. Check: • Is the key valid? Run: hermes setup • Does your account have access to openai/gpt-5.3-codex? • Check credits: https://openrouter.ai/settings/credits

I tried to use multiple models from openrouter but I am getting same error.

I am using version - Hermes Agent v0.10.0 (2026.4.16) I am on MacOS.

Steps to Reproduce

1. Use Openrouter as a model provider
2. Use any model
3. Configure openrouter api_key
4. Chat in Hermes

Expected Behavior

The chat should work

Actual Behavior

Getting error -

⚠️ API call failed (attempt 1/3): AuthenticationError [HTTP 401] 🔌 Provider: openrouter Model: openai/gpt-5.3-codex 🌐 Endpoint: https://openrouter.ai/api/v1 📝 Error: HTTP 401: User not found. 📋 Details: {'message': 'User not found.', 'code': 401} ⚠️ Non-retryable error (HTTP 401) — trying fallback... ❌ Non-retryable error (HTTP 401): HTTP 401: User not found. ❌ Non-retryable client error (HTTP 401). Aborting. 🔌 Provider: openrouter Model: openai/gpt-5.3-codex 🌐 Endpoint: https://openrouter.ai/api/v1 💡 Your API key was rejected by the provider. Check: • Is the key valid? Run: hermes setup • Does your account have access to openai/gpt-5.3-codex? • Check credits: https://openrouter.ai/settings/credits

Affected Component

Agent Core (conversation loop, context compression, memory)

Messaging Platform (if gateway-related)

No response

Debug Report

⚠️  This will upload the following to a public paste service:
  • System info (OS, Python version, Hermes version, provider, which API keys
    are configured — NOT the actual keys)
  • Recent log lines (agent.log, errors.log, gateway.log — may contain
    conversation fragments and file paths)
  • Full agent.log and gateway.log (up to 512 KB each — likely contains
    conversation content, tool outputs, and file paths)

Pastes auto-delete after 6 hours.

Collecting debug report...
Uploading...

Debug report uploaded:
  Report       https://paste.rs/PSzil
  agent.log    https://paste.rs/roR5H
  gateway.log  https://paste.rs/qMOV0

⏱  Pastes will auto-delete in 6 hours.
To delete now:  hermes debug delete <url>

Share these links with the Hermes team for support.

Operating System

mac os

Python Version

No response

Hermes Version

No response

Additional Logs / Traceback (optional)

Root Cause Analysis (optional)

No response

Proposed Fix (optional)

No response

Are you willing to submit a PR for this?

• I'd like to fix this myself and submit a PR