Model Catalog
Model Catalog
Start with meaning, then move to detail.
This lesson explains Model Catalog as part of extending Hermes and connecting external tools. You will learn what it does, when it matters, and the smallest safe test that proves it works.
If you are new, do not memorize names. Focus on three questions: what problem does this solve, what access does it need, and how can you verify the result?
For practice, inspect the first example, identify its effects, run it on test data, and compare the result with the source claim.
For advanced readers, inspect Live manifest URL, Schema, Fetch behavior, then verify failure modes and version compatibility.
Complete installation and one successful task before adding new capabilities.
A clear outcome before you read.
- Understand Model Catalog without assumed prior knowledge.
- Separate the source description from what still needs testing in your environment.
- Read the first command and identify its inputs and outputs before copying it.
Short definitions before the details.
- Provider
- The service that runs or provides access and authentication to a model.
Remotely-hosted manifest driving curated model picker lists for OpenRouter and Nous Portal.
What does the source say, and in what order?
- 01Live manifest URL
Start here to understand the core idea or structure.
- 02Schema
Read this after the foundation, then connect it to the previous step.
- 03Fetch behavior
Read this after the foundation, then connect it to the previous step.
- 04Config
Read this after the foundation, then connect it to the previous step.
- 05Per-provider override URLs
Read this after the foundation, then connect it to the previous step.
- 06Hiding providers from the picker
Read this after the foundation, then connect it to the previous step.
- 07Updating the manifest
Finish here to verify the result and special cases.
Copy only after you understand the effect.
https://hermes-agent.nousresearch.com/docs/api/model-catalog.json{
"version": 1,
"updated_at": "2026-04-25T22:00:00Z",
"metadata": {},
"providers": {
"openrouter": {
"metadata": {},
"models": [
{"id": "z-ai/glm-5.2", "description": "default", "default": true},
{"id": "moonshotai/kimi-k3", "description": "recommended", "metadata": {}},
{"id": "openai/gpt-5.4", "description": ""}
]
},
"nous": {
"metadata": {},
"models": [
{"id": "z-ai/glm-5.2", "default": true},
{"id": "anthropic/claude-opus-4.7"},
{"id": "moonshotai/kimi-k3"}
]
}
}
}model_catalog:
enabled: true
url: https://hermes-agent.nousresearch.com/docs/api/model-catalog.json
ttl_hours: 1
providers: {}Read the first command and identify its inputs and outputs before copying it.
Match every command to your installed Hermes version, review the files and accounts it can reach, and use non-sensitive data for the first test. If this explanation differs from the source, the official source wins.