// category · 8 tools · 3 open source
Dev Tools & Protocols
The plumbing for agents: tool protocols, sandboxes, browser infrastructure, web data and search APIs.
Firecrawlfirecrawl.devTurns websites into clean, LLM-ready markdown or structured data via API, with crawling and search.Dev Tools & ProtocolsOpen source★ 188.9k
Browserbasebrowserbase.comHeadless browser infrastructure for AI agents, plus the open-source Stagehand automation framework.Dev Tools & ProtocolsFreemium★ 25.5k
Model Context Protocolmodelcontextprotocol.ioOpen protocol that standardises how applications provide tools and context to LLMs and agents.Dev Tools & ProtocolsOpen source★ 9.4k
Composiocomposio.devIntegration platform that gives agents authenticated access to hundreds of apps and tools.Dev Tools & ProtocolsFreemium★ 30.4k
E2Be2b.devSecure cloud sandboxes for running AI-generated code, powered by lightweight virtual machines.Dev Tools & ProtocolsOpen source★ 14.2k
Daytonadaytona.ioCloud sandboxes for AI-generated code: fast Linux containers by default, plus Linux VM, Windows, GPU and macOS options, with SDKs in five languages.Dev Tools & ProtocolsFreemiumHN 1
Exaexa.aiSearch engine and API built for AI, returning web results and page contents via embeddings-based search.Dev Tools & ProtocolsFreemiumHN 1
Tavilytavily.comWeb search and extraction API tuned for agents and RAG workflows.Dev Tools & ProtocolsFreemium