Goodfire

Ember API

Hosted mechanistic-interpretability API. OpenAI-compatible chat-completions sampling plus feature discovery (semantic/contrastive search, AutoSteer), feature inspection/context, and model-variant creation and steering over open models like Llama 3.3 70B and Llama 3.1 8B. API-key (Bearer) authentication. Note: the goodfire-sdk repo was archived 2025-10-13 and the API host currently returns 502 as the work moves into the Silico platform.

GitHub

Documentation

📖
Authentication
https://raw.githubusercontent.com/api-evangelist/goodfire/refs/heads/main/authentication/goodfire-authentication.yml

Other Resources

🔗
SourceCode
https://github.com/goodfire-ai/goodfire-sdk
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/goodfire/refs/heads/main/apis.yml

API entry from apis.yml

apis.yml Raw ↑ 
name: Ember API
description: 'Hosted mechanistic-interpretability API. OpenAI-compatible chat-completions sampling plus
  feature discovery (semantic/contrastive search, AutoSteer), feature inspection/context, and model-variant
  creation and steering over open models like Llama 3.3 70B and Llama 3.1 8B. API-key (Bearer) authentication.
  Note: the goodfire-sdk repo was archived 2025-10-13 and the API host currently returns 502 as the work
  moves into the Silico platform.'
humanURL: https://github.com/goodfire-ai/goodfire-sdk
baseURL: https://api.goodfire.ai/api/inference/v1
tags:
- Interpretability
- LLM
- Inference
properties:
- type: Authentication
  url: authentication/goodfire-authentication.yml
- type: SourceCode
  url: https://github.com/goodfire-ai/goodfire-sdk