Browserbase website screenshot

Browserbase

Browserbase is a browser-agent platform that provides managed, headless Chromium browsers and supporting web primitives for AI agents and automation workloads. Customers use a single API key to spin up sessions, fetch and search the web, persist context, route LLM calls, and observe agent behavior across replays and logs. The company maintains the popular open-source Stagehand SDK, a Director UI for agent design, a Browse CLI, and an MCP server. Target customers are AI startups, agent developers, RPA teams, and enterprises running production web automation, with SOC 2 Type II and HIPAA options. Billing is usage-based with a free tier and paid plans on the pricing page.

Browserbase publishes 4 APIs on the APIs.io network, including Contexts API, Extensions API, Projects API, and 1 more. Tagged areas include Headless Browser, Browser Infrastructure, Web Automation, AI Agents, and Web Scraping.

The Browserbase catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Browserbase’s developer surface includes authentication, documentation, API reference, engineering blog, pricing, changelog, signup flow, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
55.2/100 strong ▬ flat Agent 20/100 agent aware open core · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreeSelf serve⚡ Free to try
1 APIs
Headless BrowserBrowser InfrastructureWeb AutomationAI AgentsWeb ScrapingStagehandPlaywrightPuppeteerWeb SearchWeb FetchModel GatewayMCPSession RecordingAgent Identity

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 55.2/100 · strong
Contract Quality 11.6 / 20
Developer Ergonomics 9.5 / 16
Access Clarity 11.8 / 16
Operational Transparency 5.8 / 10
Contract Governance 2.8 / 10
Discoverability 6.1 / 8
Open Source Surface 2.5 / 10
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 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
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/browserbase: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

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

Browserbase Contexts API

The Contexts API from Browserbase — 2 operation(s) for contexts.

Browserbase Extensions API

The Extensions API from Browserbase — 2 operation(s) for extensions.

Browserbase Projects API

The Projects API from Browserbase — 3 operation(s) for projects.

Browserbase Sessions API

The Sessions API from Browserbase — 6 operation(s) for sessions.

Open Collections 6

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

API Collection

OPEN COLLECTION

Browserbase Contexts API

OPEN COLLECTION

Browserbase Contexts Extensions API

OPEN COLLECTION

Browserbase Contexts Projects API

OPEN COLLECTION

Browserbase Contexts Sessions API

OPEN COLLECTION

Browserbase API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Browserbase Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Browserbase Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Browserbase Finops

FINOPS

Semantic Vocabularies 1

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

Browserbase Context

0 classes · 5 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Browserbase API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Browserbase API Rules

10 rules · 2 errors 5 warnings 3 info

SPECTRAL

JSON Schema 3

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

Browserbase Context

8 properties

JSON SCHEMA

Browserbase Project

7 properties

JSON SCHEMA

Browserbase Session

0 properties

JSON SCHEMA

JSON Structure 3

JSON Structure definitions describing this provider's data shapes.

Browserbase Context Structure

6 properties

JSON STRUCTURE

Browserbase Project Structure

7 properties

JSON STRUCTURE

Browserbase Session Structure

12 properties

JSON STRUCTURE

Examples 5

Example request and response payloads for these APIs.

Browserbase Create Context Example

2 fields

EXAMPLE

Browserbase Create Session Example

2 fields

EXAMPLE

Browserbase Get Session Debug Example

2 fields

EXAMPLE

Browserbase Get Session Example

2 fields

EXAMPLE

Browserbase List Projects Example

2 fields

EXAMPLE

Security Posture 3

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

Browserbase Authentication

apiKey · 1 scheme

SECURITY

Browserbase Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Browserbase Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Browserbase Agentic Access

17 operations · 6 acting

17 operations · 6 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup
Signup

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LlmsText
LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 4

Status, limits, changes, and where to get help

IssueTracker
IssueTracker
 Releases
Releases
 ChangeLog
ChangeLog
 StatusPage
StatusPage

Commercial 4

Pricing, plans, and the legal terms of use

License
License
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 3

The organization behind the API

Website
Website
 Blog
Blog
 Careers
Careers

Other 1

Properties that don't map to a standard resource type

Enterprise
Enterprise

Source (apis.yml)

apis.yml Raw ↑ 
aid: browserbase
name: Browserbase
description: Browserbase is a browser-agent platform that provides managed, headless Chromium browsers and supporting web
  primitives for AI agents and automation workloads. Customers use a single API key to spin up sessions, fetch and search
  the web, persist context, route LLM calls, and observe agent behavior across replays and logs. The company maintains the
  popular open-source Stagehand SDK, a Director UI for agent design, a Browse CLI, and an MCP server. Target customers are
  AI startups, agent developers, RPA teams, and enterprises running production web automation, with SOC 2 Type II and HIPAA
  options. Billing is usage-based with a free tier and paid plans on the pricing page.
type: Index
deliveryModel:
  model: open-core
  license: Apache-2.0
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/browserbase.png
tags:
- Headless Browser
- Browser Infrastructure
- Web Automation
- AI Agents
- Web Scraping
- Stagehand
- Playwright
- Puppeteer
- Web Search
- Web Fetch
- Model Gateway
- MCP
- Session Recording
- Agent Identity
url: https://raw.githubusercontent.com/api-evangelist/browserbase/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-25'
specificationVersion: '0.23'
apis:
- aid: browserbase:browserbase-contexts-api
  name: Browserbase Contexts API
  description: The Contexts API from Browserbase — 2 operation(s) for contexts.
  humanURL: https://docs.browserbase.com
  baseURL: https://api.browserbase.com
  tags:
  - Context
  tags_raw:
  - Contexts
  properties:
  - type: OpenAPI
    url: openapi/browserbase-contexts-api-openapi.yml
  - type: Documentation
    url: https://docs.browserbase.com
  - type: APIReference
    url: https://docs.browserbase.com/reference/introduction
  - type: GettingStarted
    url: https://docs.browserbase.com/quickstart
  - type: Signup
    url: https://www.browserbase.com/sign-up
  - type: SDKs
    url: https://github.com/browserbase/sdk-node
  - type: SDKs
    url: https://github.com/browserbase/sdk-python
  - type: SDKs
    url: https://github.com/browserbase/stagehand
  - type: SDKs
    url: https://github.com/browserbase/stagehand-python
  - type: CLI
    url: https://github.com/browserbase/browse-cli
  - type: GitHubRepository
    url: https://github.com/browserbase/mcp-server-browserbase
  - type: JSONSchema
    url: json-schema/browserbase-session-schema.json
  - type: Plans
    url: plans/browserbase-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/browserbase-rate-limits.yml
  - type: FinOps
    url: finops/browserbase-finops.yml
  - type: Vocabulary
    url: vocabulary/browserbase-vocabulary.yml
  - type: Rules
    url: rules/browserbase-rules.yml
  - type: ChangeLog
    url: https://www.browserbase.com/changelog
  - type: StatusPage
    url: https://status.browserbase.com
  - type: Pricing
    url: https://www.browserbase.com/pricing
  - type: Enterprise
    url: https://www.browserbase.com/enterprise
- aid: browserbase:browserbase-extensions-api
  name: Browserbase Extensions API
  description: The Extensions API from Browserbase — 2 operation(s) for extensions.
  humanURL: https://docs.browserbase.com
  baseURL: https://api.browserbase.com
  tags:
  - Extensions
  properties:
  - type: OpenAPI
    url: openapi/browserbase-extensions-api-openapi.yml
  - type: Documentation
    url: https://docs.browserbase.com
  - type: APIReference
    url: https://docs.browserbase.com/reference/introduction
  - type: GettingStarted
    url: https://docs.browserbase.com/quickstart
  - type: Signup
    url: https://www.browserbase.com/sign-up
  - type: SDKs
    url: https://github.com/browserbase/sdk-node
  - type: SDKs
    url: https://github.com/browserbase/sdk-python
  - type: SDKs
    url: https://github.com/browserbase/stagehand
  - type: SDKs
    url: https://github.com/browserbase/stagehand-python
  - type: CLI
    url: https://github.com/browserbase/browse-cli
  - type: GitHubRepository
    url: https://github.com/browserbase/mcp-server-browserbase
  - type: JSONSchema
    url: json-schema/browserbase-session-schema.json
  - type: Plans
    url: plans/browserbase-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/browserbase-rate-limits.yml
  - type: FinOps
    url: finops/browserbase-finops.yml
  - type: Vocabulary
    url: vocabulary/browserbase-vocabulary.yml
  - type: Rules
    url: rules/browserbase-rules.yml
  - type: ChangeLog
    url: https://www.browserbase.com/changelog
  - type: StatusPage
    url: https://status.browserbase.com
  - type: Pricing
    url: https://www.browserbase.com/pricing
  - type: Enterprise
    url: https://www.browserbase.com/enterprise
- aid: browserbase:browserbase-projects-api
  name: Browserbase Projects API
  description: The Projects API from Browserbase — 3 operation(s) for projects.
  humanURL: https://docs.browserbase.com
  baseURL: https://api.browserbase.com
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/browserbase-projects-api-openapi.yml
  - type: Documentation
    url: https://docs.browserbase.com
  - type: APIReference
    url: https://docs.browserbase.com/reference/introduction
  - type: GettingStarted
    url: https://docs.browserbase.com/quickstart
  - type: Signup
    url: https://www.browserbase.com/sign-up
  - type: SDKs
    url: https://github.com/browserbase/sdk-node
  - type: SDKs
    url: https://github.com/browserbase/sdk-python
  - type: SDKs
    url: https://github.com/browserbase/stagehand
  - type: SDKs
    url: https://github.com/browserbase/stagehand-python
  - type: CLI
    url: https://github.com/browserbase/browse-cli
  - type: GitHubRepository
    url: https://github.com/browserbase/mcp-server-browserbase
  - type: JSONSchema
    url: json-schema/browserbase-session-schema.json
  - type: Plans
    url: plans/browserbase-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/browserbase-rate-limits.yml
  - type: FinOps
    url: finops/browserbase-finops.yml
  - type: Vocabulary
    url: vocabulary/browserbase-vocabulary.yml
  - type: Rules
    url: rules/browserbase-rules.yml
  - type: ChangeLog
    url: https://www.browserbase.com/changelog
  - type: StatusPage
    url: https://status.browserbase.com
  - type: Pricing
    url: https://www.browserbase.com/pricing
  - type: Enterprise
    url: https://www.browserbase.com/enterprise
- aid: browserbase:browserbase-sessions-api
  name: Browserbase Sessions API
  description: The Sessions API from Browserbase — 6 operation(s) for sessions.
  humanURL: https://docs.browserbase.com
  baseURL: https://api.browserbase.com
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/browserbase-sessions-api-openapi.yml
  - type: Documentation
    url: https://docs.browserbase.com
  - type: APIReference
    url: https://docs.browserbase.com/reference/introduction
  - type: GettingStarted
    url: https://docs.browserbase.com/quickstart
  - type: Signup
    url: https://www.browserbase.com/sign-up
  - type: SDKs
    url: https://github.com/browserbase/sdk-node
  - type: SDKs
    url: https://github.com/browserbase/sdk-python
  - type: SDKs
    url: https://github.com/browserbase/stagehand
  - type: SDKs
    url: https://github.com/browserbase/stagehand-python
  - type: CLI
    url: https://github.com/browserbase/browse-cli
  - type: GitHubRepository
    url: https://github.com/browserbase/mcp-server-browserbase
  - type: JSONSchema
    url: json-schema/browserbase-session-schema.json
  - type: Plans
    url: plans/browserbase-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/browserbase-rate-limits.yml
  - type: FinOps
    url: finops/browserbase-finops.yml
  - type: Vocabulary
    url: vocabulary/browserbase-vocabulary.yml
  - type: Rules
    url: rules/browserbase-rules.yml
  - type: ChangeLog
    url: https://www.browserbase.com/changelog
  - type: StatusPage
    url: https://status.browserbase.com
  - type: Pricing
    url: https://www.browserbase.com/pricing
  - type: Enterprise
    url: https://www.browserbase.com/enterprise
common:
- type: IssueTracker
  url: https://github.com/browserbase/mcp-server-browserbase/issues
- type: Releases
  url: https://github.com/browserbase/mcp-server-browserbase/releases
- type: License
  name: Apache-2.0
  url: https://github.com/browserbase/mcp-server-browserbase/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/browserbase-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/browserbase-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/browserbase-domain-security.yml
- type: Authentication
  url: authentication/browserbase-authentication.yml
- type: Website
  url: https://www.browserbase.com
- type: Documentation
  url: https://docs.browserbase.com
- type: APIReference
  url: https://docs.browserbase.com/reference/introduction
- type: Blog
  url: https://www.browserbase.com/blog
- type: GitHubOrganization
  url: https://github.com/browserbase
- type: Pricing
  url: https://www.browserbase.com/pricing
- type: Enterprise
  url: https://www.browserbase.com/enterprise
- type: ChangeLog
  url: https://www.browserbase.com/changelog
- type: StatusPage
  url: https://status.browserbase.com
- type: Signup
  url: https://www.browserbase.com/sign-up
- type: Careers
  url: https://www.browserbase.com/careers
- type: TermsOfService
  url: https://www.browserbase.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.browserbase.com/privacy-policy
- type: LlmsText
  url: https://docs.browserbase.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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