The Humanloop alternative your whole team can use
Prompt management, evaluations, observability, and human review in one platform — built for engineers and subject-matter experts alike. Self-serve, from £29 per editor seat, with free viewer seats.
Free plan includes 5,000 traces/month — no credit card required.
When Humanloop sunset its platform in September 2025 after its team joined Anthropic, cross-functional AI teams lost the one tool that brought prompts, evals, observability, and human review together in a single place. Enprompta picks up exactly that workflow — and you can start today without a sales call.
Everything Humanloop did, in one place
The same end-to-end loop — prompt, ship, observe, evaluate, review — without the infrastructure to run yourself.
Prompt management & versioning
Prompt registry with version control, served at runtime — change a prompt without redeploying.
Evaluations
Rule-based evaluators (regex, keyword, schema, semantic) unlimited on Pro, plus LLM-as-judge AI Graders.
Observability & logging
Full tracing via the SDK or any OpenTelemetry exporter, with sessions, cost, and auto-scoring.
Datasets & experiments
Curate datasets from production traces and compare prompt versions with confidence and effect size.
Human review of outputs
Assignable review queues with shared rubrics and hotkeys — usable by non-engineers, no notebook required.
Playground
Side-by-side prompt and model comparison with versioning built in.
Built for the whole team
Most LLM tooling is built for engineers, leaving product managers and domain experts trading spreadsheets. Enprompta gives each persona a first-class home.
For engineers
- TypeScript and Python SDKs with one-line auto-instrumentation.
- OpenTelemetry-native ingestion — point your existing exporter at Enprompta.
- Evals in CI, prompt versioning, and a runtime registry — no redeploys.
For PMs & domain experts
- Review queues with shared rubrics — clear a queue without an engineer.
- Configure evaluators through forms, not code.
- Free viewer seats, so the whole team can read traces and results.
Moving over is straightforward
Three steps to get your team productive again.
Bring your prompts
Import your prompts and versions through the Enprompta CLI or API and serve them at runtime.
Reconnect tracing
Drop in the SDK or repoint your OpenTelemetry exporter — traces start flowing with cost and tokens.
Rebuild evals & review
Recreate your evaluators and set up review queues with shared rubrics for your reviewers.
Self-serve, not sales-gated
Start on the Free plan today, or go Pro at £29 per editor seat — viewers are free, so the whole team can collaborate. No demo gate, no minimums.