Bruno is an open-source (MIT), git-native API client - a lightweight, offline-first alternative to Postman and Insomnia for exploring and testing APIs. It is a developer TOOL, not a hosted HTTP API provider. Collections are stored on the local filesystem as folders of plain-text files (the .bru "Bru" markup language, with OpenCollection YAML now recommended for new collections), so API requests are version-controlled in Git alongside code. Bruno sends HTTP, REST, GraphQL, and gRPC requests, manages environments and variables, and runs pre-request/post-response scripts, tests, and assertions. The @usebruno/cli command-line runner (bru) executes collections headlessly in CI/CD with JSON, JUnit, and HTML reporters. Bruno is offline-only and does not sync request data to a Bruno-hosted cloud; paid Pro/Ultimate tiers add native in-app Git integration, OpenAPI sync, and enterprise admin controls that run through your own Git provider and identity systems. Bruno does not expose a documented public REST HTTP API.
Bruno publishes 6 APIs on the APIs.io network. Tagged areas include API Client, API Testing, Developer Tools, Open Source, and Git-Native.
Bruno’s developer surface includes documentation, engineering blog, CLI, changelog, release notes, getting-started guide, pricing, and 29 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% 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/bruno-api: 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 →
Bruno is an area vendor: providers adopt it to run part of their developer surface. This is the Kin Score checks its features can move for a provider that adopts it, what each one really earns, and what it earns nothing for.
api collectionscapability map6 features checked 2026-09-25 · rubric v0.22.0
Bruno hosts nothing for a provider, so every point it can move is a file the provider exports and publishes itself. Exported as a Postman collection it can earn postman_present as the provider’s own work; exported as OpenAPI it can create a contract where only a collection existed; generated as HTML docs and deployed on the provider’s site it can earn documentation and console pointers. A native .bru or OpenCollection repo earns nothing on its own, and Bruno’s mock servers are local-only.
Contract Quality23.0 of 211 pts
Developer Ergonomics9.0 of 42 pts
Check
Earns
Through
Publishes a machine-readable contractsaturated Contract Quality95% of providers with a contract, docs and a reference already earn this; the vendor cannot move it for most of its buyers.
Documentationsaturated Developer Ergonomics95% of providers with a contract, docs and a reference already earn this; the vendor cannot move it for most of its buyers.
Postman collection Developer ErgonomicsThe provider authored the requests; the export changes the format, not the authorship. A collection someone else exported from the provider’s spec is derived (0.25).
OpenAPI 3.0conditional Contract QualityThe export page says “OpenAPI Specification (OAS) V3” without a minor version; credit only if the file declares 3.0.x.
Across 8977 providers that publish a contract, adopting Bruno would move 8828. Median lift: composite +2.4 (90th percentile +4.2), agent readiness +0.0 (+0.0). Conditional rows excluded.
What Bruno ships that earns nothing (2)
Git-native collections and the Fetch in Bruno button — A .bru / OpenCollection repo, or a Fetch in Bruno button, is not a Postman collection; the check reads Postman-typed pointers only.
Mock servers (beta) — Bruno mocks listen on localhost on the user’s machine; nothing public exists to declare as a Sandbox.
A model, not a score. Adopting this vendor changes a provider's Kin Score only when the provider publishes the resulting artifacts on its own surface; nothing here writes a score, and no sponsorship or partnership can. The rating is not for sale → · Full vendor facets artifact
Interfaces this provider implements that became standards by being copied rather than ratified. Each is profiled by the API Commons, and the evidence column says how the claim was established — not that it was made.
Individual APIs this provider publishes. MODELED: a real API behind a partner or contract gate; there is no public reference, so API Evangelist drew its shape. NOT AN API: a product area with no API behind it, not counted.
The core open-source, git-native desktop API client (a lightweight Postman/Insomnia alternative). Compose and send HTTP, REST, GraphQL, and gRPC requests, organize them into col...
Bru is Bruno's plain-text domain-specific markup language. Each request is stored as a .bru file capturing the HTTP method, URL, query params, headers, body, authentication, scr...
OpenCollection is the open, YAML-based collection format Bruno now recommends for new collections as an alternative representation to .bru. Like .bru it stores requests, folders...
The @usebruno/cli command-line runner (invoked as bru, installed via npm install -g @usebruno/cli) executes individual requests or entire collections headlessly for CI/CD, with ...
Paid Bruno (Pro and Ultimate) adds native in-app Git integration and OpenAPI sync (5 syncs/month on Pro, unlimited on Ultimate) plus SSO, SCIM, audit logs, and license/admin con...
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...
Bruno ships TWO distinct, first-party MCP surfaces, and they are not interchangeable. (1) A REMOTE, unauthenticated HTTP MCP server on Bruno's own documentation host that any ag...
aid: bruno-api
url: https://raw.githubusercontent.com/api-evangelist/bruno-api/refs/heads/main/apis.yml
name: Bruno
kind: company
description: Bruno is an open-source (MIT), git-native API client - a lightweight, offline-first alternative to Postman and
Insomnia for exploring and testing APIs. It is a developer TOOL, not a hosted HTTP API provider. Collections are stored
on the local filesystem as folders of plain-text files (the .bru "Bru" markup language, with OpenCollection YAML now recommended
for new collections), so API requests are version-controlled in Git alongside code. Bruno sends HTTP, REST, GraphQL, and
gRPC requests, manages environments and variables, and runs pre-request/post-response scripts, tests, and assertions. The
@usebruno/cli command-line runner (bru) executes collections headlessly in CI/CD with JSON, JUnit, and HTML reporters. Bruno
is offline-only and does not sync request data to a Bruno-hosted cloud; paid Pro/Ultimate tiers add native in-app Git integration,
OpenAPI sync, and enterprise admin controls that run through your own Git provider and identity systems. Bruno does not
expose a documented public REST HTTP API.
deliveryModel:
model: open-core
license: MIT
license_evidence:
repo: usebruno/bruno
spdx: MIT
stars: 47189
open_source: true
commercial: true
callable_host: false
label: Open core · an OSS project plus a commercial hosted product
confidence: medium
source:
- pricing
- repository-license
generated: '2026-09-25'
method: derived
accessModel:
pricing: freemium
onboarding: unknown
trial: true
try_now: false
public: false
label: Freemium (free trial)
confidence: medium
source:
- plans
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/bruno-api.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-21
x-docs-hosting: vercel
tags:
- API Client
- API Testing
- Developer Tools
- Open Source
- Git-Native
- CLI
- Postman Alternative
- A2A
- Testing
tags_raw:
- API Client
- API Testing
- Developer Tools
- Open Source
- Git-Native
- CLI
- Postman Alternative
- Open-Source
- A2A
- Testing
created: '2026-07-11'
modified: '2026-09-18'
specificationVersion: '0.23'
apis:
- aid: bruno-api:bruno-api-client
name: Bruno API Client
tags:
- API Client
- API Testing
- Developer Tools
- REST
- GraphQL
- gRPC
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://docs.usebruno.com/introduction/what-is-bruno
properties:
- url: https://docs.usebruno.com/
type: Documentation
- url: https://github.com/usebruno/bruno
type: SourceCode
description: The core open-source, git-native desktop API client (a lightweight Postman/Insomnia alternative). Compose and
send HTTP, REST, GraphQL, and gRPC requests, organize them into collections, manage environments and variables, and write
pre-request/post-response scripts plus tests and assertions. Offline-only with no cloud sync of request data. This is
a client application, not a hosted API - it has no baseURL or public HTTP endpoints of its own.
- aid: bruno-api:bruno-bru-language
x-published: false
name: Bru Markup Language (.bru)
tags:
- File Format
- Collection
- Git-Native
- Open Source
tags_raw:
- File Format
- Collections
- Git-Native
- Open Source
- Open-Source
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://docs.usebruno.com/bru-lang/overview
properties:
- url: https://docs.usebruno.com/bru-lang/overview
type: Documentation
- url: https://github.com/usebruno/bruno
type: SourceCode
description: Bru is Bruno's plain-text domain-specific markup language. Each request is stored as a .bru file capturing
the HTTP method, URL, query params, headers, body, authentication, scripts, tests, assertions, and variables, so a collection
is a folder of human-readable text files reviewable in Git pull requests. A logical artifact/file format modeled as a
capability area - not an HTTP endpoint.
- aid: bruno-api:bruno-opencollection
x-published: false
name: OpenCollection Format
tags:
- Collection
- Open Standard
- YAML
- Portability
tags_raw:
- Collections
- Open Standard
- YAML
- Portability
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://docs.usebruno.com/
properties:
- url: https://docs.usebruno.com/
type: Documentation
description: OpenCollection is the open, YAML-based collection format Bruno now recommends for new collections as an alternative
representation to .bru. Like .bru it stores requests, folders, auth, and scripts as version-friendly text. A file/interchange
format modeled as a capability area - not a hosted API surface.
- aid: bruno-api:bruno-cli
name: Bruno CLI (bru)
tags:
- CLI
- API Testing
- CI/CD
- Automation
- Developer Tools
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://docs.usebruno.com/bru-cli/overview
properties:
- url: https://docs.usebruno.com/bru-cli/overview
type: Documentation
- url: https://github.com/usebruno/bruno
type: SourceCode
description: The @usebruno/cli command-line runner (invoked as bru, installed via npm install -g @usebruno/cli) executes
individual requests or entire collections headlessly for CI/CD, with JSON, JUnit, and HTML test reporters, environment
selection, and assertions. Since v3.0.0 it defaults to Safe Mode for security; Developer Mode features (filesystem access,
external npm packages) require the --sandbox=developer flag. A local CLI tool, not a hosted API.
- aid: bruno-api:bruno-git-collaboration
x-published: false
name: Bruno Git Integration and Sync
tags:
- Git
- Collaboration
- Sync
- Enterprise
- Developer Tools
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.usebruno.com/pricing
properties:
- url: https://www.usebruno.com/pricing
type: Pricing
- url: https://docs.usebruno.com/
type: Documentation
description: Paid Bruno (Pro and Ultimate) adds native in-app Git integration and OpenAPI sync (5 syncs/month on Pro, unlimited
on Ultimate) plus SSO, SCIM, audit logs, and license/admin controls. Collaboration happens through your own Git provider
and identity systems - Bruno stays offline-only and does not sync request data to a Bruno-hosted cloud. Modeled here as
a capability area; it is not a documented public API.
- aid: bruno-api:api-client
name: Bruno API Client
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
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
tags:
- API Client
- API Testing
- Git-Native
- GraphQL
- gRPC
- Open Source
- REST
tags_raw:
- API Client
- API Testing
- Git-Native
- GraphQL
- gRPC
- Open Source
- REST
- Open-Source
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
common:
- type: VendorFacets
url: vendor-facets/bruno-api-vendor-facets.yml
- type: TrustCenter
url: security/bruno-api-trust-center.yml
- type: DomainSecurity
url: security/bruno-api-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: GitHubOrganization
url: https://github.com/usebruno
- type: Plans
url: plans/bruno-api-plans-pricing.yml
- type: RateLimits
url: rate-limits/bruno-api-rate-limits.yml
- type: FinOps
url: finops/bruno-api-finops.yml
- url: https://blog.usebruno.com/
type: Blog
- type: Blog
url: https://www.usebruno.com/blog
- type: AgentCard
url: a2a/bruno-api-a2a.yml
- type: MCPServer
url: mcp/bruno-api-mcp.yml
- type: WellKnown
url: well-known/bruno-api-well-known.yml
- type: LLMsTxt
url: llms/bruno-api-llms.txt
- type: AgentSkill
url: skills/_index.yml
- type: Packages
url: packages/bruno-api-packages.yml
- type: SDKs
url: packages/bruno-api-packages.yml
- type: CLI
url: cli/bruno-api-cli.yml
- type: ChangeLog
url: changelog/bruno-api-changelog.yml
- type: ReleaseNotes
url: https://www.usebruno.com/changelog
- type: Lifecycle
url: lifecycle/bruno-api-lifecycle.yml
- type: Conformance
url: conformance/bruno-api-conformance.yml
- type: Compliance
url: security/bruno-api-trust-center.yml
- type: Security
url: security/bruno-api-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
url: security/bruno-api-vulnerability-disclosure.yml
- type: DeveloperPortal
url: https://docs.usebruno.com/
- type: GettingStarted
url: https://docs.usebruno.com/introduction/getting-started
- type: Pricing
url: https://www.usebruno.com/pricing
- type: SignUp
url: https://www.usebruno.com/start-trial
- type: Support
url: https://www.usebruno.com/support
- type: Community
url: https://www.usebruno.com/community
- type: Roadmap
url: https://www.usebruno.com/roadmap
- type: TermsOfService
url: https://www.usebruno.com/terms
- type: PrivacyPolicy
url: https://www.usebruno.com/privacy-policy
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
x-enrichment:
date: '2026-09-18'
status: enriched
artifacts_added: 17
pass: local-v3
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.
Kin Score
How this is scored →