EntityProcess · christso · Jan 9, 2026
diff --git a/examples/features/otel-export/README.md b/examples/features/otel-export/README.md
@@ -0,0 +1,103 @@
+# JSONL → OpenTelemetry export (Confident AI or Langfuse)
+
+This example shows how to take AgentV JSONL results (produced by `agentv eval --output-format jsonl`) and send them to a backend via OpenTelemetry (OTLP over HTTP).
+
+It is intentionally **standalone** and does not modify AgentV core.
+
+## Prerequisites
+
+- Bun
+- Either:
+	- Confident AI API key, or
+	- Langfuse API keys
+
+## Install
+
+From this folder:
+
+```bash
+bun install
+```
+
+## Configure
+
+This exporter supports `--backend confident` (default) or `--backend langfuse`.
+
+### Confident AI
+
+Set:
+
+- `CONFIDENT_API_KEY` (required)
+- `OTEL_EXPORTER_OTLP_ENDPOINT` (optional, defaults to `https://otel.confident-ai.com`)
+
+Example:
+
+```bash
+export CONFIDENT_API_KEY="confident_us_..."
+export OTEL_EXPORTER_OTLP_ENDPOINT="https://otel.confident-ai.com"
+```
+
+Confident expects OTLP/HTTP traces at:
+
+- `https://otel.confident-ai.com/v1/traces`
+
+### Langfuse
+
+Set:
+
+- `LANGFUSE_PUBLIC_KEY` (required)
+- `LANGFUSE_SECRET_KEY` (required)
+- `OTEL_EXPORTER_OTLP_ENDPOINT` (optional, defaults to `https://cloud.langfuse.com/api/public/otel`)
+
+Example (Langfuse Cloud EU):
+
+```bash
+export LANGFUSE_PUBLIC_KEY="pk-lf-..."
+export LANGFUSE_SECRET_KEY="sk-lf-..."
+export OTEL_EXPORTER_OTLP_ENDPOINT="https://cloud.langfuse.com/api/public/otel"
+```
+
+Example (Langfuse Cloud US):
+
+```bash
+export LANGFUSE_PUBLIC_KEY="pk-lf-..."
+export LANGFUSE_SECRET_KEY="sk-lf-..."
+export OTEL_EXPORTER_OTLP_ENDPOINT="https://us.cloud.langfuse.com/api/public/otel"
+```
+
+Example (self-hosted Langfuse, v3.22.0+):
+
+```bash
+export LANGFUSE_PUBLIC_KEY="pk-lf-..."
+export LANGFUSE_SECRET_KEY="sk-lf-..."
+export OTEL_EXPORTER_OTLP_ENDPOINT="http://localhost:3000/api/public/otel"
+```
+
+Note: Langfuse’s OTLP endpoint is HTTP/protobuf (not gRPC).
+
+## Run
+
+```bash
+bun run export --in path/to/results.jsonl
+```
+
+Specify a backend:
+
+```bash
+bun run export --backend confident --in path/to/results.jsonl
+bun run export --backend langfuse --in path/to/results.jsonl
+```
+
+You can use the included sample file for a quick smoke test:
+
+```bash
+bun run export --in ./sample-results.jsonl
+```
+
+What it exports:
+
+- One span per JSONL record (per eval case)
+- Safe attributes derived from AgentV results (`eval_id`, `target`, `score`, `trace_summary` counts/metrics)
+- Does **not** export prompts, tool inputs/outputs, or assistant text
+
+If you want to include additional data, extend the attribute builders in `export-jsonl-to-otel.ts`.
diff --git a/examples/features/otel-export/bun.lock b/examples/features/otel-export/bun.lock
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diff --git a/examples/features/otel-export/export-jsonl-to-confident-otel.ts b/examples/features/otel-export/export-jsonl-to-confident-otel.ts
@@ -0,0 +1,3 @@
+// Back-compat entrypoint.
+// Prefer running `bun run export --in ... [--backend confident|langfuse]` which executes `export-jsonl-to-otel.ts`.
+import './export-jsonl-to-otel';