Integrations

Simforge integrates with popular LLM observability platforms to automatically trace your function calls. When configured, every SDK call is automatically logged to your connected services.

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Available Integrations

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Braintrust

Braintrust is an enterprise-grade platform for LLM evaluation, monitoring, and experimentation.

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Setup

1. Go to Settings > Integrations in the Simforge portal
2. Click Connect on the Braintrust card
3. Enter your API Key (starts with sk-)
4. Click Test Connection to verify
5. Click Save

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What Gets Traced

When Braintrust is connected, each SDK call creates a span with:

• Input: The function inputs you provided
• Output: The parsed result from the LLM
• Model and provider: Which LLM was used
• Token usage: Input, output, and cached tokens
• Metadata: Function ID, version ID, and Simforge trace ID
• Tags: simforge and sdk-call

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Viewing Traces

After making SDK calls, you can view spans in your Braintrust dashboard. The Simforge trace ID is included in the metadata for cross-referencing.

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Langfuse

Langfuse is an open-source LLM observability platform that provides tracing, analytics, and prompt management.

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Setup

1. Go to Settings > Integrations in the Simforge portal
2. Click Connect on the Langfuse card
3. Enter your credentials:
   • Host: Your Langfuse host (e.g., https://cloud.langfuse.com or your self-hosted URL)
   • Public Key: Your Langfuse public key (starts with pk-lf-)
   • Secret Key: Your Langfuse secret key (starts with sk-lf-)
4. Click Test Connection to verify
5. Click Save

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What Gets Traced

When Langfuse is connected, each SDK call creates a trace with:

• Input: The function inputs you provided
• Output: The parsed result from the LLM
• Generation details: Model, token usage, and timing
• Metadata: Function ID, version ID, and Simforge trace ID

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Viewing Traces

After making SDK calls, you can view traces in your Langfuse dashboard. Each trace includes a direct link back to the corresponding trace in Simforge.

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Managing Integrations

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Updating Credentials

To update an integration’s credentials:

1. Go to Settings > Integrations
2. Click Update on the integration card
3. Enter new credentials
4. Click Save

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Disconnecting

To disconnect an integration:

1. Go to Settings > Integrations
2. Click Disconnect on the integration card
3. Confirm the disconnection

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Organization Scope

Integrations are configured per organization. Each organization can have its own Langfuse and Braintrust credentials, allowing different teams to use their own observability accounts.