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Helicone/helicone

Helicone / helicone

Dev Agents & ProgramsTypeScriptApache-2.0
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Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23

6.2kstars
680forks
165open issues
2026-09-16last pushed
Apache-2.0license

What it is, and how people use it

Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 It sits on the Dev Agents & Programs shelf of the catalog, maintained by @Helicone.

✓Drop-in for Claude Code, Codex CLI and Cursor - install and it just runs.
✓Read the SKILL.md / README first; most setups are one command from the docs.
✓Teams use it to standardise how agents behave across every repo in the org.
agent-monitoringanalyticsevaluationgptlangchain
www.helicone.ai

Why builders keep it installedDev Agents & Programs benefits

Day-one leverage

These CLIs and dashboards solve one job well and install with a single command. Value shows up in the first hour, not after a config weekend.

Composes with your agent

Most of them ship an MCP server, skill or hooks - so the same tool you use manually becomes an action your agent can call safely.

Built under real workloads

Star counts here track repos people actually run daily: the issue history shows bug classes fixed under production pressure, not demo-week polish.

Free and open source

Every tool on this page ships under an open license and can be self-hosted. Your usage data and your configs stay yours.

Contributorsloading from GitHub…

HEHelicdev1155HEHelicdev2139HEHelicdev3124HEHelicdev4108HEHelicdev593HEHelicdev677HEHelicdev762HEHelicdev846

Languagesestimated from snapshot

  • TypeScript 84.6%
  • Shell 11.5%
  • JavaScript 3.8%

Community pulsesnapshot ratios, normalized

starsforksissues ×3watchers