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Monitoring

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Note

AI Gateway requires the AI Governance Add-On. As of Coder v2.32, deployments without the add-on will not be able to access AI Gateway.

AI Gateway records the last user prompt, token usage, model reasoning, and every tool invocation for each intercepted request. Each capture is tied to a single "interception" that maps back to the authenticated Coder identity, making it easy to attribute spend and behaviour.

User Prompt logging

User Leaderboard

We provide an example Grafana dashboard that you can import as a starting point for your metrics. See the Grafana dashboard README.

These logs and metrics can be used to determine usage patterns, track costs, and evaluate tooling adoption.

Provider metrics

aibridged (the in-process daemon) and aibridgeproxyd (the external proxy) each export Prometheus metrics describing the configured provider pool and its reload loop. See Provider Configuration for the lifecycle these metrics describe.

Metric	Type	Labels	Purpose
`coder_aibridged_provider_info`	gauge	`provider_name`, `provider_type`, `status`	One series per configured provider. Value is always `1`; the `status` label (`enabled`, `disabled`, `error`) carries the alertable signal.
`coder_aibridged_providers_last_reload_timestamp_seconds`	gauge		Unix timestamp of the last reload attempt, success or failure.
`coder_aibridged_providers_last_reload_success_timestamp_seconds`	gauge		Unix timestamp of the last reload that successfully refreshed the pool.
`coder_aibridgeproxyd_provider_info`	gauge	`provider_name`, `provider_type`, `status`	Same shape as `aibridged_provider_info` but reported by the external proxy.
`coder_aibridgeproxyd_providers_last_reload_timestamp_seconds`	gauge		Last reload attempt timestamp in `aibridgeproxyd`.
`coder_aibridgeproxyd_providers_last_reload_success_timestamp_seconds`	gauge		Last successful reload timestamp in `aibridgeproxyd`.
`coder_aibridgeproxyd_connect_sessions_total`	counter	`type` (`mitm`, `tunneled`)	CONNECT sessions established by the proxy.
`coder_aibridgeproxyd_mitm_requests_total`	counter	`provider`	MITM requests handled.
`coder_aibridgeproxyd_inflight_mitm_requests`	gauge	`provider`	In-flight MITM requests.
`coder_aibridgeproxyd_mitm_responses_total`	counter	`code`, `provider`	MITM responses by HTTP status code.

Suggested alerts

Alert on any provider entering a non-enabled status:

sum by (provider_name, status) (coder_aibridged_provider_info{status!="enabled"}) > 0

Alert when the reload loop is firing but failing to refresh the pool for longer than a few minutes:

(coder_aibridged_providers_last_reload_timestamp_seconds
  - coder_aibridged_providers_last_reload_success_timestamp_seconds) > 300

Repeat the same query against coder_aibridgeproxyd_* if you run the external proxy.

Structured Logging

AI Bridge can emit structured logs for every interception event to your existing log pipeline. This is useful for exporting data to external SIEM or observability platforms. See Structured Logging in the setup guide for configuration and a full list of record types.

Exporting Data

AI Gateway interception data can be exported for external analysis, compliance reporting, or integration with log aggregation systems.

REST API

You can retrieve AI Gateway sessions via the Coder API, with filtering and pagination support.

curl -X GET "https://coder.example.com/api/v2/aibridge/sessions" \
  -H "Coder-Session-Token: $CODER_SESSION_TOKEN"

Available query filters:

client - Filter by client name.
Possible client values

[!NOTE] Client classification is done on best effort basis using the User-Agent header; not all clients send these headers in an easily-identifiable manner.
- Claude Code
- Codex
- Zed
- GitHub Copilot (VS Code)
- GitHub Copilot (CLI)
- Kilo Code
- Coder Agents
- Mux
- Cursor
- Unknown
initiator - Filter by user ID or username
provider - Filter by AI provider (e.g., openai, anthropic)
model - Filter by model name
started_after - Filter interceptions after a timestamp
started_before - Filter interceptions before a timestamp

See the API documentation for full details.

CLI

Export interceptions as JSON using the CLI:

coder aibridge interceptions list --initiator me --limit 1000

You can filter by time range, provider, model, and user:

coder aibridge interceptions list \
  --started-after "2025-01-01T00:00:00Z" \
  --started-before "2025-02-01T00:00:00Z" \
  --provider anthropic

See coder aibridge interceptions list --help for all options.

Data Retention

AI Gateway data is retained for 60 days by default. Configure the retention period to balance storage costs with your organization's compliance and analysis needs.

For configuration options and details, see Data Retention in the AI Gateway setup guide.

Tracing

AI Gateway supports tracing via OpenTelemetry, providing visibility into request processing, upstream API calls, and MCP server interactions.

Enabling Tracing

AI Gateway tracing is enabled when tracing is enabled for the Coder server. To enable tracing set CODER_TRACE_ENABLE environment variable or --trace CLI flag:

export CODER_TRACE_ENABLE=true

coder server --trace

What is Traced

AI Gateway creates spans for the following operations:

Span Name	Description
`CachedBridgePool.Acquire`	Acquiring a request bridge instance from the pool
`Intercept`	Top-level span for processing an intercepted request
`Intercept.CreateInterceptor`	Creating the request interceptor
`Intercept.ProcessRequest`	Processing the request through the bridge
`Intercept.ProcessRequest.Upstream`	Forwarding the request to the upstream AI provider
`Intercept.ProcessRequest.ToolCall`	Executing a tool call requested by the AI model
`Intercept.RecordInterception`	Recording creating interception record
`Intercept.RecordPromptUsage`	Recording prompt/message data
`Intercept.RecordTokenUsage`	Recording token consumption
`Intercept.RecordToolUsage`	Recording tool/function calls
`Intercept.RecordInterceptionEnded`	Recording the interception as completed
`ServerProxyManager.Init`	Initializing MCP server proxy connections
`StreamableHTTPServerProxy.Init`	Setting up HTTP-based MCP server proxies
`StreamableHTTPServerProxy.Init.fetchTools`	Fetching available tools from MCP servers

Example trace of an interception using Jaeger backend:

Trace of interception

Capturing Logs in Traces

Note

Enabling log capture may generate a large volume of trace events.

To include log messages as trace events, enable trace log capture by setting CODER_TRACE_LOGS environment variable or using --trace-logs flag:

export CODER_TRACE_ENABLE=true
export CODER_TRACE_LOGS=true

coder server --trace --trace-logs