Settings
api key
rt_demo_public_9f4c2a7ePublic demo key — anyone can send traces into this project.send a trace
typescript
import { Retrace } from "@retrace/sdk"; // packages/sdk in the repo
const rt = new Retrace({ apiKey: "rt_demo_public_9f4c2a7e", baseUrl: "https://retrace-neel.netlify.app" });
const trace = rt.trace({ name: "support-bot", input: { question } });
const gen = trace.generation({ name: "answer", model: "claude-haiku-4-5", input: { question } });
gen.end({ output: answer, usage: { promptTokens: 812, completionTokens: 164 } });
await trace.end({ output: answer });curl
ID=$(uuidgen | tr A-Z a-z); NOW=$(date -u +%Y-%m-%dT%H:%M:%SZ)
curl -s https://retrace-neel.netlify.app/api/ingest \
-H "authorization: Bearer rt_demo_public_9f4c2a7e" \
-H "content-type: application/json" \
-d '{"batch":[
{"type":"trace.create","id":"'$ID'","timestamp":"'$NOW'","name":"curl-test"},
{"type":"trace.end","id":"'$ID'","timestamp":"'$NOW'"}]}'Send token counts, not dollars — cost is computed on the server from the pricing table below.
model pricing · usd per million tokens
| model | input | output |
|---|---|---|
| claude-haiku-4-5 | $1.00 | $5.00 |
| claude-haiku-4-5-20251001 | $1.00 | $5.00 |
| gpt-4o-mini | $0.15 | $0.60 |
| sim-1 | $1.00 | $5.00 |