e2b
e2b provides secure, ephemeral sandboxes (Firecracker microVMs) for AI agent code execution. Each sandbox spins up in <200ms with full Linux environment, Python/Node/etc preinstalled. Substrate for code-agent products including Anthropic Claude Code (artifacts run on e2b), Perplexity, You.com Search, Cognition Devin (partially), and Hugging Face Spaces. Apache 2.0 OSS + managed cloud. $13M Seed + Series A 2024 (Sunflower Capital + a16z).
Active · Verified 2026-10-27 · fresh as of 2026-10-27 · 34 cited facts, 2 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Tier
- T1
- Created
- 2023 (founded) vendor fix
- Latest release
- v2.61.0 (2026-10-26) registry fix
- License
- Apache-2.0 repo fix
- GitHub
- e2b-dev/E2B — ~15k stars, last commit 2026-10 repo fix
- Pricing
- Hobby $0 (one-time $100 credit, 20 concurrent sandboxes); Pro $150/mo + usage (100 concurrent; Pro+ $650, Pro++ $1,150); Enterprise custom ($3,000/mo minimum, BYOC); per-second usage vCPU $0.000014/s, RAM $0.0000045/GiB-s vendor fix
- Funding
- $13M+ total raised (seed 2023 + Series A Sept-2024; Sunflower Capital + a16z + Lightspeed; Decibel + Y Combinator) vendor fix
- Freshness
- 2026-10-27 fix
- Layer
- agent-infra repo fix
- Licensing
- open-source repo fix
- SDK languages
- python, typescript repo fix
- Protocols
- mcp-server vendor fix
- Compliance
- hipaa, soc2-type2 vendor fix
- Developer activity
- OpenRank 11.05 (12-mo avg 7.49) · 46 participants — 2026-09 third-party fix
When to use
Optimised for: ephemeral secure code execution for AI agents (artifacts / tools)
Anti-fit: not applicable — sandbox/runtime, not memory product
Pros & cons
Pros
Standard substrate for code-execution-as-tool in major AI products (Anthropic Claude Code uses e2b); <200ms cold start; Firecracker microVM isolation; Apache 2.0 OSS SDK; major customers (Anthropic + Perplexity + Hugging Face).
Cons
Specialized to code-execution sandbox use case; less general-purpose than Modal / Daytona; managed pricing premium relative to self-hosted Firecracker.
Claims & capabilities
$13M+ raised (seed 2023 + Series A Sept-2024; Sunflower Capital + a16z); Firecracker microVM-based; <200ms cold start; used by Anthropic, Perplexity, Hugging Face; Apache 2.0 OSS SDK
Technical surface
- API surface
- REST + SDK (Python / TS / JS); CLI
- Backend storage
- not applicable — sandbox/runtime, not memory product
- Deployment
- Both (self-hosted + managed cloud) — E2B Cloud; open-source Apache-2.0 runtime (e2b-dev/infra) can be self-hosted; enterprise BYOC
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- not applicable — sandbox/runtime, not memory product
- MCP
- native (MCP server for sandbox tools)
- A2A
- not applicable — sandbox/runtime, not memory product
- OpenTelemetry
- not applicable — sandbox/runtime, not memory product
Compare e2b with…
Alternatives to e2b → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other ai sandbox & runtime environments in the catalog, ranked by inbound references.
- Daytona T2
Daytona is secure, elastic sandbox infrastructure for running AI-generated code and agent workflows (isolated sandboxes with snapshots, volumes, computer use, MCP server). Pivoted from an open-source cloud development environment; as of June 2026 core development moved to a private codebase and the daytonaio/daytona repo was archived (2026-10-03). SDKs, API clients and CLI/MCP tools are published in the open daytona/clients repo. Founded by the ex-Codeanywhere team (Ivan Burazin).
- Modal Sandboxes T1
Modal Labs ships a serverless container platform with first-class GPU support; Sandboxes feature (2024) adds ephemeral, AI-agent-friendly compute sandboxes. Founded 2021 by Erik Bernhardsson (ex-Spotify ML, author of Luigi + Annoy). $87M total raised through Series B (Lux Capital + Redpoint + Definition + Amplify). Used by major LLM apps for batch inference + agent code execution.
- Anchor (Anchor Browser) T3
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- Browserless.io T2
Browserless is a headless-browser-as-a-service — managed Chromium / Playwright / Puppeteer endpoints for web scraping, screenshots, PDF generation, web automation. Increasingly used as substrate for browser-agent products. Founded 2017 by Joel Griffith. Bootstrapped + small seed. Distinct from Playwright OSS — Browserless ships managed Chromium farms with anti-bot circumvention.
- Coder.com T2
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- CodeSandbox AI T2
CodeSandbox is the long-running browser-based dev sandbox (founded 2017 by Ives van Hoorne + Bas Buursma in Amsterdam). **Acquired by Together AI Oct-2024** to anchor Together's agent-execution stack alongside its GPU inference cloud. AI features include AI-assisted coding, agent-execution sandboxes, and instant-preview for AI-generated apps.
Sources (33 cited facts, 2 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Code-execution sandbox infrastructure for AI agents (firecracker microVMs) vendor
- What it does & what's distinct e2b provides secure, ephemeral sandboxes (Firecracker microVMs) for AI agent code execut… vendor
- Claims / benefits $13M+ raised (seed 2023 + Series A Sept-2024; Sunflower Capital + a16z); Firecracker mic… vendor
- Created 2023 (founded) vendor
- Latest release v2.61.0 (2026-10-26) registry
- License Apache-2.0 repo
- GitHub e2b-dev/E2B — ~15k stars, last commit 2026-10 repo
- Funding $13M+ total raised (seed 2023 + Series A Sept-2024; Sunflower Capital + a16z + Lightspee… vendor
- Customers / scale Anthropic Claude Code (artifacts execution); Perplexity (code interpretation); Hugging F… vendor
- Pricing Hobby $0 (one-time $100 credit, 20 concurrent sandboxes); Pro $150/mo + usage (100 concu… vendor
- Compliance SOC 2 Type II vendor
- Data handling Ephemeral sandboxes (default no persistence); never trains on customer code vendor
- Deployment Both (self-hosted + managed cloud) — E2B Cloud; open-source Apache-2.0 runtime (e2b-dev/… repo
- HQ San Francisco, US + Prague, Czech Republic vendor
- Founders / pedigree Vasek Mlejnsky (CEO; Czech founder); Tomas Valenta (CTO) vendor
- Code/weights release Apache 2.0 — SDK + CLI OSS; managed cloud proprietary vendor
- API surface REST + SDK (Python / TS / JS); CLI vendor
- MCP support native (MCP server for sandbox tools) vendor
- Runtimes Python, TypeScript repo
- Optimised for ephemeral secure code execution for AI agents (artifacts / tools) vendor
- Adjacent infrastructure Firecracker (substrate); Anthropic Claude Code; Perplexity; Hugging Face Spaces; compete… vendor
- Pros Standard substrate for code-execution-as-tool in major AI products (Anthropic Claude Cod… vendor
- Cons Specialized to code-execution sandbox use case; less general-purpose than Modal / Dayton… vendor
- Project & sources e2b.dev/ vendor
- adoption-accelerator pioneer third-party
- architecture-deployment-locus hybrid vendor
- licensing-bucket open-source repo
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup agent-infra repo
- developer-activity-opendigger {"activity":159.55,"as_of":"2026-09","openrank_12mo":7.49,"openrank_current":11.05,"part… third-party
- compliance-certifications hipaa,soc2-type2 vendor
- sdk-languages python,typescript repo
- protocol-support mcp-server vendor
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-27
- License “Apache 2.0 (SDK + CLI)” → “Apache-2.0” source
- Latest release “not applicable — sandbox/runtime, not memory product” → “v2.61.0 (2026-10-26)” source
- Pricing “Free + Pro ($150/mo) + Enterprise (quote); pay-per-second sandbox billing” → “Hobby $0 (one-time $100 credit, 20 concurrent sandboxes); Pro $150/mo + usage (100 concurrent; Pro+ $650, Pro++ $1,150); Enterprise custom ($3,000/mo minimum, BYOC); per-second usage vCPU $0.000014/s, RAM $0.0000045/GiB-s” source
- Deployment “Managed cloud (e2b.dev) + Apache 2.0 OSS SDK for self-hostable runtime” → “Both (self-hosted + managed cloud) — E2B Cloud; open-source Apache-2.0 runtime (e2b-dev/infra) can be self-hosted; enterprise BYOC” source
Related systems
References (18)
- Anthropic Claude (foundation models) depends on at runtime — adjacent-infrastructure cell: Firecracker (substrate); Anthropic Claude Code; Perplexity; Hugging Face Spaces; competes with Modal Sandboxes / Daytona
- Claude Code (Anthropic) integrates with — E2B docs have a Claude Code (Anthropic) integration guide. (verified 2026-10-29)
- CrewAI integrates with — E2B docs have a CrewAI integration guide. (verified 2026-10-29)
- Cursor (IDE) integrates with — E2B docs have a Cursor (IDE) integration guide. (verified 2026-10-29)
- Devin (Cognition) integrates with — E2B docs have a Devin (Cognition) integration guide. (verified 2026-10-29)
- DSPy integrates with — E2B docs have a DSPy integration guide. (verified 2026-10-29)
- Google Agent Development Kit (ADK) integrates with — E2B docs have a Google Agent Development Kit (ADK) integration guide. (verified 2026-10-29)
- LangGraph (orchestration) integrates with — E2B docs have a LangGraph (orchestration) integration guide. (verified 2026-10-29)
- Letta / MemGPT integrates with — E2B docs have a Letta / MemGPT integration guide. (verified 2026-10-29)
- Mastra integrates with — E2B docs have a Mastra integration guide. (verified 2026-10-29)
- Model Context Protocol (MCP spec) integrates with — E2B docs have a Model Context Protocol (MCP spec) integration guide. (verified 2026-10-29)
- OpenAI Agents SDK integrates with — E2B docs have a OpenAI Agents SDK integration guide. (verified 2026-10-29)
- OpenAI Codex CLI integrates with — E2B docs have a OpenAI Codex CLI integration guide. (verified 2026-10-29)
- Opencode (SST) integrates with — E2B docs have a Opencode (SST) integration guide. (verified 2026-10-29)
- Phidata (now Agno) integrates with — E2B docs have a Phidata integration guide. (verified 2026-10-29)
- Pydantic-AI integrates with — E2B docs have a Pydantic-AI integration guide. (verified 2026-10-29)
- TRL (Hugging Face) integrates with — E2B docs have a TRL (Hugging Face) integration guide. (verified 2026-10-29)
- Vercel AI SDK integrates with — E2B docs have a Vercel AI SDK integration guide. (verified 2026-10-29)
Referenced by (11)
- Arcade.dev integrates with — Arcade docs have a e2b integration page. (verified 2026-10-29)
- Arize Phoenix integrates with — Arize Phoenix docs have a e2b integration page. (verified 2026-10-29)
- CrewAI integrates with — CrewAI docs have an E2B sandbox tools page. (verified 2026-10-29)
- Haystack (framework) integrates with — Haystack integrations directory has an E2B integration page ("Use E2B cloud sandboxes as tools in a Haystack Agent to run bash commands and read, write, and list files in an isolated Linux environment"). (verified 2026-10-29)
- Inngest integrates with — Inngest AgentKit docs: "Using AgentKit with E2B" integration guide. (verified 2026-10-29)
- LangChain (framework) integrates with — LangChain's all-providers integrations page lists E2B: "Cloud sandboxes for running AI-generated code". (verified 2026-10-29)
- Mastra integrates with — Mastra repo ships the E2B workspace sandbox package. (verified 2026-10-29)
- OpenAI Agents SDK integrates with — OpenAI Agents SDK sandbox clients docs list E2BSandboxClient (openai-agents[e2b]). (verified 2026-10-29)
- Phidata (now Agno) integrates with — Agno ships a e2b toolkit (agno.tools.e2b). (verified 2026-10-29)
- Pydantic-AI integrates with — Pydantic AI harness docs have an E2B sandbox integration page. (verified 2026-10-29)
- smolagents (Hugging Face) integrates with — smolagents secure code execution docs have an E2B sandbox setup section. (verified 2026-10-29)