Helicone vs Doppler
Open-source LLM observability — 1-line integration via proxy
vs. The secrets management platform for dev teams — sync env vars everywhere
Pricing tiers
Helicone
Hobby (Free)
10,000 requests/month. 7-day retention. 1 seat. Basic monitoring.
Free
Startup Discount
<2 years, <$5M funding: 50% off first year.
$0 base (usage-based)
Self-Hosted (OSS)
MIT-licensed. Run Helicone yourself for free.
$0 base (usage-based)
Pro
$79/month. 10k free + usage-based. Unlimited seats. Alerts, reports, HQL query language. 1-month retention.
$79/mo
Team
$799/month. 5 orgs, SOC-2 + HIPAA compliance, dedicated Slack, 3-month retention.
$799/mo
Enterprise
Custom MSA, SAML SSO, on-prem deploy, bulk discounts, forever retention.
Custom
Doppler
Developer
$0. 5 users. Unlimited projects + secrets. Community support. For hobby/startups.
$0 base (usage-based)
Team
$18/user/mo. Unlimited projects, audit log, secret sharing, 14-day history.
$18/mo
Business
$36/user/mo. SSO (Google), advanced RBAC, 90-day audit + history, change requests.
$36/mo
Enterprise
Custom. SAML, SCIM, HIPAA, unlimited audit, dedicated support, SLA.
Custom
Free-tier quotas head-to-head
Comparing hobby on Helicone vs developer on Doppler.
| Metric | Helicone | Doppler |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Helicone · 16 features
- Alerts — Thresholds on error rate, latency, cost, usage. Pro+.
- Async Logging — Log AFTER the LLM call via SDK — zero added latency.
- Cost Tracking — Automatic cost calculation per call by provider/model.
- Dashboard — Request tables, aggregate metrics, cost breakdowns.
- Evaluators — LLM-as-judge + custom evaluators on runs.
- Experiments — A/B test different models/prompts.
- HQL (SQL over traces) — Query your logged data with SQL. Pro+.
- PII Redaction — Automatically scrub emails, credit cards, etc. from logs.
- Prompt Caching — Cache identical requests → save money.
- Prompts & Versions — Store + version + A/B test prompts.
- Proxy Mode — 1-line integration via base URL swap. Captures all requests.
- Rate Limiting — Per-user + per-key rate limit policies.
- Reports — Scheduled email reports with KPIs.
- Self-Hosting — Docker + k8s deployment.
- Sessions — Group related calls (chat sessions, agent runs).
- User Metrics — Per-user cost + usage segmentation.
Doppler · 15 features
- Audit Log — Who accessed what, when.
- Auto Rotation — Rotate cloud/API keys.
- Branch Configs — dev/staging/prod as branches.
- Change Requests — PR approvals for prod changes.
- Doppler CLI — Command-line access.
- E2E Encryption — Client-side encryption.
- Local Dev Injection — `doppler run` injects env vars.
- OIDC (CI/CD) — Short-lived tokens for GitHub Actions, etc.
- RBAC — Granular project + config roles.
- SCIM — User provisioning.
- Secret History — Full version history + restore.
- Secret References — Point to secrets from other projects.
- Secrets Sync — Auto-sync to 100+ destinations.
- SSO (Google, SAML) — Enterprise auth.
- Webhooks — Secret-change events.
Developer interfaces
| Kind | Helicone | Doppler |
|---|---|---|
| CLI | Helicone CLI | doppler CLI |
| SDK | helicone (npm), helicone-python | @dopplerhq/node-sdk, doppler-sdk (Python) |
| REST | Async Logging API, Helicone Proxy, Query API (HQL) | Doppler REST API |
| MCP | — | Doppler MCP |
| OTHER | Helicone Dashboard, Webhooks | Doppler Dashboard, Doppler Webhooks, GitHub Actions OIDC |
Staxly is an independent catalog of developer platforms. Some links to Helicone and Doppler may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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