Home / Agent infra

Arize Phoenix

Open source tracing and evaluation for LLM apps

Open source tool from Arize for tracing, evaluating and debugging LLM applications. It uses OpenTelemetry-based instrumentation and runs locally or in the cloud.

observabilityevalsopentelemetryopen-source

vs Model Context Protocol vs Agent2Agent Protocol vs Composio Arize Phoenix alternatives

More in Agent infra

Model Context Protocol

Open protocol for connecting models to tools and data

Open sourceprotocolmcp

Agent2Agent Protocol

Open protocol for agents to talk to each other

Open sourceprotocola2a

Composio

Tool and integration layer for agents

Freemiumtoolsintegrations

E2B

Cloud sandboxes for running agent-generated code

Open sourcesandboxcode-execution

Firecrawl

Turns websites into clean data for LLMs

Open sourcescrapingcrawling

Langfuse

Open source LLM observability and prompt management

Open sourceobservabilitytracing