20 Helicone alternatives
Helicone: Open-source AI gateway and LLM observability: one OpenAI-compatible endpoint for 100+ models, with fallbacks, caching, cost tracking and request tracing. 20 apps do similar work, most sharing Open Source, Cost Optimization and Observability, ranked by how much they have in common with Helicone.
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Portkey (Palo Alto Networks)
AI gateway and LLMOps platform: one API to 1,600+ models with fallbacks, caching, guardrails, cost tracking and prompt management.
Also: Cost Optimization, LLM Gateway, Observability, Open Source
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BerriAI
Open-source, self-hosted AI gateway and Python SDK: one OpenAI-compatible API for 100+ providers, with spend tracking, budgets and guardrails.
Also: Cost Optimization, LLM Gateway, Open Source, Self-Hosted
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AI gateway and LLM router: one OpenAI-compatible API for 600+ models, with fallback, load-balancing, latency and auto-routing policies, spend limits and EU routing.
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An open-source proxy that sits between your coding agent and the model, compressing tool schemas, file reads and stale history to cut token bills.
Also: Cost Optimization, LLM Gateway, Open Source
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Open-source, OpenTelemetry-native observability platform for logs, metrics and traces — with first-class tracing for LLM calls and agent runs.
Also: Observability, Open Source, Self-Hosted
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One API and one bill for hundreds of language models, with automatic failover between providers.
Also: Cost Optimization, LLM Gateway
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One API for agent harnesses — run Codex, Claude Code or Hermes behind your product with shared sessions, streaming, files and cost controls, and swap harness with a config change.
Also: Cost Optimization, LLM Gateway
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ngrok
A hosted LLM gateway from ngrok: one base URL and one key for public providers, your own keys and self-hosted models, with failover, scoped access and cost analytics.
Also: Cost Optimization, LLM Gateway
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Free, open-source local MCP gateway: register each server once, share it with every AI client, and cut tool-definition tokens by up to 91%.
Also: Cost Optimization, Open Source
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The framework and observability platform most teams use to build, debug, and ship LLM agents.
Also: Observability, Open Source
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Arize AI
AI engineering platform for tracing, evaluating and improving LLM apps and agents — with Phoenix, its open-source local-first counterpart, for teams that want to start without a vendor.
Also: Observability, Open Source
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An OpenTelemetry-native control plane for AI agents that enforces policy mid-run instead of paging you after the incident, with cost attribution and EU AI Act evidence built in.
Also: Observability, Open Source
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Sim, Inc.
Open-source AI workspace where teams build, deploy and monitor agents on one canvas — visually or in code, across 1,000+ integrations.
Also: Observability, Open Source
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Open-source LLM observability — trace, evaluate, and improve AI applications with production data.
Also: Observability, Open Source
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All Hands AI
OpenHands — the leading open-source coding agent platform, self-hostable or run in the cloud.
Also: Open Source, Self-Hosted
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Jun Kim
Menu-bar LLM inference server for Apple Silicon, with continuous batching and tiered KV caching that keeps local models fast enough for real coding work.
Also: Open Source, Self-Hosted
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Roo Code
Self-hostable cloud coding agent from the Roo Code team — investigates repos, verifies its own work and opens pull requests, driven from Slack, Teams, Discord or Telegram rather than an IDE.
Also: Open Source, Self-Hosted
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Secure cloud sandboxes where AI agents can run untrusted code safely, starting in milliseconds.
Also: Open Source, Self-Hosted
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A self-hosted, feature-rich chat interface that puts a polished front end on Ollama and any OpenAI-compatible API.
Also: Open Source, Self-Hosted
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OpenClaw Foundation
Open-source personal AI assistant that runs on your own machine and answers from WhatsApp, Telegram, Slack, iMessage and 25 other chat apps.
Also: Open Source, Self-Hosted