# 12 best E2B alternatives (2026)

> 12 E2B alternatives on the same Agents & MCP shelf (2026). E2B is freemium on API + SDKs.

Canonical: https://www.isthereanytool.app/alternatives/e2b

E2B is filed as freemium Coding Agents & AI IDEs software, best for agent code sandboxes. Agent tooling staple for running untrusted code beside MCP tools. We grouped picks by shared shelf tags and our own comparisons. This page lists 12 tools shoppers compare against E2B in our catalog — not vendor rankings.

## Alternatives

1. [Composio](https://www.isthereanytool.app/tool/composio) — Production agent tooling—auth, RBAC, audit—not just raw servers
2. [Firecrawl](https://www.isthereanytool.app/tool/firecrawl) — Go-to scraping toolkit wired into Claude/Cursor via MCP
3. [Smithery](https://www.isthereanytool.app/tool/smithery) — Docker Hub of MCP—fastest path from find to run
4. [Glama](https://www.isthereanytool.app/tool/glama) — Superset of official registry with security/quality scoring
5. [CrewAI](https://www.isthereanytool.app/tool/crewai) — Fastest path to multi-agent crews that call MCP tools
6. [Pipedream](https://www.isthereanytool.app/tool/pipedream) — Connect agents to SaaS APIs without writing every connector
7. [Cursor MCP Integrations](https://www.isthereanytool.app/tool/cursor-mcp-integrations) — Where many builders first experience MCP day-to-day
8. [Claude Desktop MCP](https://www.isthereanytool.app/tool/claude-desktop-mcp) — Consumer breakthrough that popularized MCP connectors
9. [Browserbase](https://www.isthereanytool.app/tool/browserbase) — Default cloud browsers for Operator-style agents
10. [LangGraph](https://www.isthereanytool.app/tool/langgraph) — Standard for checkpointed agent workflows + tool graphs
11. [OpenAI Agents SDK](https://www.isthereanytool.app/tool/openai-agents-sdk) — Thin official agent loop for production OpenAI bots
12. [Serena MCP](https://www.isthereanytool.app/tool/serena-mcp) — Token-efficient codebase MCP hyped for refactoring agents

[Full E2B record](https://www.isthereanytool.app/tool/e2b)