Helicone by Helicone
Open-source LLM observability platform and AI gateway with caching, rate limits and fallbacks.
LLM gateways and routers Official MCP server Open source
Price
Free plan
paid plans from $79/mo
Free tier
Yes
Hobby: 10,000 requests/month, 1 GB storage, 1 seat
SDK downloads
2,989
npm @helicone/helpers
Pricing
| Free tier | Hobby: 10,000 requests/month, 1 GB storage, 1 seat |
|---|---|
| Cheapest paid plan | $79 a month |
| Usage price | — |
| Good to know | Pro $79/month, Team $799/month, both with usage-based pricing above 10K requests / 1 GB, but per-request and per-GB rates are not stated on the page. Site banner says Helicone has joined Mintlify. 7-day free trial on paid plans. |
From the official pricing page, checked Oct 9, 2026. Prices change: confirm before you buy.
Use it from an agent
| MCP server | Official: @helicone/mcp |
|---|---|
| npm | npm install @helicone/helpers |
| GitHub | Helicone/helicone · 6,210 stars · last push Sep 16, 2026 |
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