tools

Helicone

Helicone routes, monitors, debugs, and analyzes AI applications through an open-source gateway and observability platform.

Helicone helps AI engineers and teams log LLM requests, trace multi-step workflows, monitor costs and performance, manage prompts, run evaluations, and route traffic across model providers.

It offers an OpenAI-compatible AI Gateway with routing, caching, rate limits, automatic failover, and observability. A free Hobby plan is available; Pro and Team plans add usage-based charges, while Enterprise pricing is custom. Helicone was acquired by Mintlify on March 3, 2026, and its services remain live in maintenance mode.

Features

Route requests across 100+ models and multiple AI providers
Trace and debug multi-step LLM and agent workflows
Monitor requests, costs, latency, users, and sessions
Manage, version, test, and deploy prompts without code changes
Run experiments, datasets, playground tests, and evaluations
Use caching, rate limits, load balancing, and automatic failover
Self-host the observability platform with Docker
Open-source AI Gateway and observability platform

Use cases

Monitor production LLM requests and identify errors
Compare model costs, latency, and performance across providers
Test prompt changes against production data before release
Route AI traffic through a unified OpenAI-compatible API
Debug multi-step agents with sessions and request traces
Deploy observability inside an organization’s infrastructure

Pros

Cons

Pricing

Starting price: Free
Pricing checked: 2026-09-19

Hobby

Free

10,000 free requests
1 GB storage
1 seat, 1 organization

Pro

$79 per month

Everything in Hobby
Unlimited seats
Alerts & reports
HQL (Query Language)
Usage-based pricing applies
7-day free trial

Team

$799 per month

Everything in Pro
5 organizations
SOC-2 & HIPAA compliance
Dedicated Slack channel
Usage-based pricing applies
7-day free trial

Enterprise

Everything in Team
Custom MSA
SAML SSO
On-prem deployment
Bulk cloud discounts

Official website