Helicone vs Postman

Helicone

Postman

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.

Postman · 17 features

• API Documentation — Public + private docs from collections.
• API Versioning — Manage multiple API versions.
• Collection Runner — Run N iterations with data.
• Collections — Saved request groups + runners.
• Desktop App — Native Mac/Win/Linux.
• Environments — Per-env variables.
• Flows (low-code) — Visual workflow builder.
• Governance — API design rules enforcement.
• Mock Servers — Auto-generated mocks.
• Monitors — Scheduled collection runs + alerts.
• Newman CLI — CI/CD collection runner.
• Postman AI — Generate tests + docs with AI.
• Pre-request / Test Scripts — JS scripts + assertions.
• Public API Network — Discoverable APIs marketplace.
• Request Builder — GUI for any HTTP request.
• Request History — Per-user request log.
• VS Code Extension — Requests inside VS Code.