Best AI Agents

Model Context Protocol

Open protocol for connecting models to tools and data

Open protocol introduced by Anthropic that standardizes how AI applications connect to tools and data sources. It has SDKs in several languages and a large set of community servers.

protocolmcpstandardtools

More in Agent infra

Agent2Agent Protocol

Agent infra

Open protocol for agents to talk to each other

Open sourceprotocola2a

Arize Phoenix

Agent infra

Open source tracing and evaluation for LLM apps

Open sourceobservabilityevals

Composio

Agent infra

Tool and integration layer for agents

Freemiumtoolsintegrations

E2B

Agent infra

Cloud sandboxes for running agent-generated code

Open sourcesandboxcode-execution

Firecrawl

Agent infra

Turns websites into clean data for LLMs

Open sourcescrapingcrawling

Langfuse

Agent infra

Open source LLM observability and prompt management

Open sourceobservabilitytracing