20 VoltAgent alternatives
VoltAgent: An open-source TypeScript framework for building AI agents, paired with VoltOps, a console for tracing, evals, prompt management and deployment. 20 apps do similar work, most sharing Observability, Open Source and Evaluation, ranked by how much they have in common with VoltAgent.
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An open-source platform for durable AI agents and background workflows written in TypeScript, with retries, queues, realtime streaming and run observability.
Also: Agents, Observability, Open Source, TypeScript
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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: Agents, Evaluation, Observability, Open Source
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Reads your production chat and voice agent conversations to surface the silent failures, frustration loops and policy breaches that offline evals never catch.
Also: Agents, Evaluation, Observability
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The framework and observability platform most teams use to build, debug, and ship LLM agents.
Also: Evaluation, Observability, Open Source
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Open-source LLM observability — trace, evaluate, and improve AI applications with production data.
Also: Evaluation, Observability, Open Source
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An Apache-2.0 TypeScript framework for building AI agents — workflows, memory, RAG and evals — with a local studio and an agentic software factory on top.
Also: Agents, Open Source, TypeScript
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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: Agents, Observability, Open Source
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Prefactor Pty Ltd
Agent observability and evaluation that scores every production run for quality, drift and risk — and can pause or block a risky action before it executes.
Also: Evaluation, Observability
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The standard experiment tracker for machine learning, now with tracing and evaluation for LLM applications.
Also: Evaluation, Observability
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Evaluation-first AI development — measure whether a prompt or model change actually improved anything.
Also: Evaluation, Observability
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Digger
Write an agent as a TypeScript function and deploy it in seconds onto KVM-isolated Linux microVMs, with the loop, sessions, streaming and versioning managed for you.
Also: Agents, TypeScript
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Mario Zechner
Minimal, MIT-licensed terminal coding agent that adapts to your workflow via TypeScript extensions.
Also: Open Source, TypeScript
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Microsoft
Microsoft's open-source optimizer that trains an agent's SKILL.md like a model parameter — epochs, learning-rate budgets and a held-out validation gate, with frozen weights.
Also: Evaluation, Open Source
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Open-source testing and evals platform for MCP servers — trace tool calls, debug OAuth, and catch cross-client regressions in CI.
Also: Evaluation, Open Source
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LangGenius
An open-source platform for building production LLM applications — visual workflows, RAG, and agents in one place.
Also: Evaluation, Open Source
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Dataiku
Finds every AI agent an enterprise is running across AWS, Databricks, Google, Microsoft, Salesforce and Snowflake, then measures and risk-ranks them.
Also: Agents, Observability
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Open-source AI gateway and LLM observability: one OpenAI-compatible endpoint for 100+ models, with fallbacks, caching, cost tracking and request tracing.
Also: Observability, Open Source
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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: Observability, 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
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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