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E2B

E2B (e2b-dev) provides secure, isolated cloud sandboxes for AI agents and AI-generated code, built on a forked Firecracker microVM runtime. The platform ships a REST Sandbox API, JavaScript and Python SDKs, a Code Interpreter SDK, a Desktop Sandbox for computer-use agents, persistent volumes, a custom template build system, and an e2b CLI. The Apache-2.0 licensed core repos — E2B, infra, firecracker, code-interpreter, and desktop — also support self-hosted deployments on AWS, GCP, Azure, or bare Linux. E2B is LLM-agnostic and used by labs and enterprises building code interpreters, deep-research agents, data analysis features, reinforcement-learning environments, and computer-use agents.

agent ready

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles E2B the way a machine reads it — 47 machine-readable artifacts across 14 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — E2B scores 64.7/100 (strong), with a separate agent-readiness read of 55/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 64.7/100 · strong
Contract Quality 15.9 / 25
Developer Ergonomics 14.8 / 20
Commercial Clarity 13.7 / 20
Operational Transparency 2.7 / 13
Governance 8.8 / 12
Discoverability 8.8 / 10
Agent readiness — 55/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile E2B

Each block below is one kind of artifact we hold for E2B. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 14

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

E2B Code Interpreter SDK

Higher-level SDK on top of the Sandbox API that exposes a Jupyter-style code interpreter for LLM-driven Python and JavaScript execution. Returns structured execution results inc...

E2B Desktop Sandbox SDK

Sandbox flavor that boots a Linux desktop environment with a noVNC stream and exposes mouse, keyboard, screenshot, and window-management primitives. Built for computer-use agent...

E2B access-tokens API

The access-tokens API from E2B — 2 operation(s) for access-tokens.

E2B admin API

The admin API from E2B — 4 operation(s) for admin.

E2B api-keys API

The api-keys API from E2B — 2 operation(s) for api-keys.

E2B auth API

The auth API from E2B — 3 operation(s) for auth.

E2B events API

The events API from E2B — 2 operation(s) for events.

E2B Health API

The Health API from E2B — 1 operation(s) for health.

E2B sandboxes API

The sandboxes API from E2B — 13 operation(s) for sandboxes.

E2B snapshots API

The snapshots API from E2B — 1 operation(s) for snapshots.

E2B tags API

The tags API from E2B — 2 operation(s) for tags.

E2B templates API

The templates API from E2B — 11 operation(s) for templates.

E2B volumes API

The volumes API from E2B — 5 operation(s) for volumes.

E2B webhooks API

The webhooks API from E2B — 2 operation(s) for webhooks.

Scroll within the panel for all 14 ·

Open Collections 3

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

E2B API

OPEN COLLECTION

E2B API

OPEN COLLECTION

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

E2B Dev Plans Pricing

3 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

E2B Dev Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 17

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

Firecracker microVM sandboxes that cold-start in under 200ms in-region and run up to 24 hours on Pro
Pause, resume, and snapshot sandboxes to persist agent state across invocations
Custom sandbox templates built from e2b.toml or programmatic SDK definitions with cached build layers
Persistent volumes attachable to any sandbox with a separate Volume Content API authenticated by short-lived JWTs
Up to 100 concurrent sandboxes on Pro (expandable to 1,100 with purchase) and up to 20 on Hobby
Adjustable per-sandbox CPU and RAM, plus 10-20 GiB of free storage depending on tier
JavaScript/TypeScript and Python SDKs for the Sandbox, Code Interpreter, and Desktop products
Code Interpreter SDK returns Jupyter-style outputs (stdout, charts, images, html, markdown, latex)
Desktop Sandbox boots a Linux desktop with noVNC stream and mouse/keyboard/screenshot primitives for computer-use agents
MCP Gateway and MCP server integrations that expose sandboxes as tools to Claude, ChatGPT, and other MCP clients
LLM-agnostic — works with Anthropic, OpenAI, Mistral, Llama, and any custom model
Built-in integration patterns with LangChain, LlamaIndex, Vercel AI SDK, CrewAI, AutoGen, and Hugging Face
Open-source CLI (`e2b`) for template init, build, list, deploy, sandbox connect, and logs
Apache-2.0 licensed core; the platform is buildable from the e2b-dev/infra Go monorepo for self-hosting on AWS, GCP, Azure, or bare Linux
Enterprise BYOC and on-prem deployments with a forked Firecracker microVM runtime in Rust
Per-second usage-based pricing on CPU, RAM, and storage with a $100 signup credit
Used in production by AI labs, agent startups, and Fortune 100 enterprises; 1B+ sandboxes started and 3.5M+ monthly SDK downloads

Scroll within the panel for all 17 ·

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

E2B Dev Context

20 classes · 11 properties

JSON-LD

Spectral Rules 1

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

E2B API Rules

5 rules · 3 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

E2B Sandbox

14 properties

JSON SCHEMA

E2B Sandbox Template

9 properties

JSON SCHEMA

Examples 2

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

E2B Dev Authentication

apiKey/http · 5 schemes

SECURITY

E2B Dev Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

E2B Dev Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

E2B Dev Agentic Access

67 operations · 36 acting · 1 human-in-the-loop

67 operations · 36 acting

AGENTIC

Resources

Every other property we hold for E2B — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 4

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Operate 4

Status, limits, changes, and where to get help

Company 3

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/e2b-dev · machine-readable index on apis.io