Bruno website screenshot

Bruno

Bruno is an open-source, Git-native, offline-first API client for exploring and testing APIs. It stores collections directly on the filesystem as plain text files using the Bru markup language, making collections version-controllable alongside code. Bruno supports REST, GraphQL, and gRPC APIs, scripting with JavaScript, environment variables, pre-request and post-response hooks, and CI/CD automation via Bruno CLI. Licensed under the MIT License and available on Mac, Windows, and Linux with 43,000+ GitHub stars.

Bruno publishes 1 API on the APIs.io network. Tagged areas include API Client, API Testing, CLI, Git, and GraphQL.

Bruno’s developer surface includes documentation, engineering blog, pricing, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
30.5/100 thin ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
1 APIs
API ClientAPI TestingCLIGitGraphQLgRPCJavaScriptMIT LicenseOpen SourceREST

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 30.5/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 15.8 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 6.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/bruno: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Bruno API Client

Bruno is an open-source API client for exploring and testing REST, GraphQL, and gRPC APIs. Collections are stored as plain text Bru files on the filesystem, enabling Git-based v...

GraphQL 1

GraphQL schemas published by this provider.

Bruno GraphQL API

Bruno is an open-source API client for exploring and testing REST, GraphQL, and gRPC APIs. Collections are stored as plain text Bru files on the filesystem, enabling Git-based v...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Bruno Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Bruno Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Bruno Finops

FINOPS

Security Posture 2

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

Bruno Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Bruno Trust Center

SOC 2

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LlmsText
LlmsText

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrg
GitHubOrg
 GitHubRepository
GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Community
Community

Commercial 4

Pricing, plans, and the legal terms of use

License
License
 Pricing
Pricing
 PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

Downloads
Downloads

Source (apis.yml)

apis.yml Raw ↑ 
aid: bruno
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/bruno.png
name: Bruno
url: https://raw.githubusercontent.com/api-evangelist/bruno/refs/heads/main/apis.yml
description: Bruno is an open-source, Git-native, offline-first API client for exploring and testing APIs. It stores collections
  directly on the filesystem as plain text files using the Bru markup language, making collections version-controllable alongside
  code. Bruno supports REST, GraphQL, and gRPC APIs, scripting with JavaScript, environment variables, pre-request and post-response
  hooks, and CI/CD automation via Bruno CLI. Licensed under the MIT License and available on Mac, Windows, and Linux with
  43,000+ GitHub stars.
tags:
- API Client
- API Testing
- CLI
- Git
- GraphQL
- gRPC
- JavaScript
- MIT License
- Open Source
- REST
kind: opensource
type: Index
specificationVersion: '0.19'
apis:
- aid: bruno:api-client
  name: Bruno API Client
  description: Bruno is an open-source API client for exploring and testing REST, GraphQL, and gRPC APIs. Collections are
    stored as plain text Bru files on the filesystem, enabling Git-based version control, team collaboration through pull
    requests, and co-location with application code. Bruno supports JavaScript scripting, environment variables, collection-level
    authentication, and CI/CD execution via Bruno CLI. No cloud account required.
  humanURL: https://www.usebruno.com
  baseURL: https://www.usebruno.com
  tags:
  - API Client
  - API Testing
  - Git-Native
  - GraphQL
  - gRPC
  - Open Source
  - REST
  properties:
  - type: Documentation
    url: https://docs.usebruno.com
  - type: GettingStarted
    url: https://docs.usebruno.com
  - type: GitHubRepository
    url: https://github.com/usebruno/bruno
  - type: License
    url: https://github.com/usebruno/bruno/blob/main/license.md
  - type: Downloads
    url: https://www.usebruno.com/downloads
  - type: Pricing
    url: https://www.usebruno.com/pricing
  - url: graphql/bruno-graphql.md
    type: GraphQL
common:
- type: TrustCenter
  url: security/bruno-trust-center.yml
- type: DomainSecurity
  url: security/bruno-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/usebruno
- type: Website
  url: https://www.usebruno.com
- type: Documentation
  url: https://docs.usebruno.com
- type: GitHubOrg
  url: https://github.com/usebruno
- type: GitHubRepository
  url: https://github.com/usebruno/bruno
- type: License
  url: https://github.com/usebruno/bruno/blob/main/license.md
- type: Blog
  url: https://www.usebruno.com/blog
- type: Pricing
  url: https://www.usebruno.com/pricing
- type: Downloads
  url: https://www.usebruno.com/downloads
- type: PrivacyPolicy
  url: https://www.usebruno.com/privacy-policy
- type: TermsOfService
  url: https://www.usebruno.com/terms
- type: Community
  url: https://github.com/usebruno/bruno/discussions
- type: LlmsText
  url: https://docs.usebruno.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
created: '2026-03-16'
modified: '2026-04-21'