Rybbit

Rybbit is an open-source, privacy-friendly web and product analytics platform positioned as a cookieless alternative to Google Analytics and Plausible. It ingests pageviews, custom events, autocaptured interactions, performance samples and JavaScript errors through a lightweight tracking script and an HTTP /api/track endpoint, and exposes a Bearer-key-authenticated Stats and Management API covering sites, sessions, users, goals, funnels, web vitals, session replays, organizations and teams. Since v2.8.0 Rybbit also runs a first-party hosted Model Context Protocol server at https://app.rybbit.io/api/mcp — 38 tools behind an OAuth 2.1 authorization server with PKCE, dynamic client registration and a 29-scope resource:action permission model — making it directly callable by AI agents. Rybbit publishes no OpenAPI. It can be self-hosted under AGPL-3.0, which ships the identical REST and MCP surface, or consumed as a managed cloud service.

Rybbit publishes 3 APIs on the APIs.io network: Analytics API, Event Tracking API, and Sessions API. Tagged areas include Analytics, Web Analytics, Product Analytics, Privacy, and Open Source.

Rybbit’s developer surface includes authentication, engineering blog, documentation, changelog, sandbox, API reference, getting-started guide, and 42 more developer resources.

🌐 Visit website 📡 Source on GitHub

68.2/100 exemplar ▬ flat Agent 43/100 agent ready Front door AI 4/6 moderate Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

AccessFreemiumSelf serveFree trial⚡ Free to try

1 published contract 1 MCP Servers

Analytics Web Analytics Product Analytics Privacy Open Source Cookieless

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Product Telemetry & Experimentation Management

BC-4280

AnalyticsEvent TrackingSessions

POST /api/track GET /api/sites/{site}/users GET /api/sites/{site}/users/{userId} GET /api/sites/{site}/users/{userId}/sessions

Kin Score

Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0

Composite quality — 68.2/100 · exemplar

Contract Quality 9.0 / 19

Developer Ergonomics 11.2 / 15

Access Clarity 15.0 / 15

Operational Transparency 5.9 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 6.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 43/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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 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 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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/rybbit: 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 3

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

Rybbit Analytics API

Stats API for events and reporting per site.

Rybbit Event Tracking API

Public ingestion endpoint for pageviews and custom events.

Rybbit Sessions API

Session-level analytics and cohort retention.

Open Collections 5

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

API Collection

OPEN COLLECTION

Rybbit Analytics API

OPEN COLLECTION

Rybbit Analytics Event Tracking API

OPEN COLLECTION

Rybbit Analytics Sessions API

OPEN COLLECTION

Rybbit API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Rybbit MCP Server

Rybbit ships a first-party HOSTED (remote) Model Context Protocol server as part of the product — the same server code is in the AGPL-3.0 repository, so a self-hosted instance e...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Rybbit Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rybbit Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Rybbit Finops

FINOPS

Security Posture 4

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

Rybbit Authentication

http/oauth2 · 3 schemes

SECURITY

Rybbit Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Rybbit Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Rybbit Trust Center

trust center published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Rybbit Scopes

29 scopes · authorizationCode

29 scopes

SCOPES

Agentic Access 1

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

Rybbit Agentic Access

10 operations · 1 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

GettingStarted

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

WellKnown

MCPServer

LLMsTxt

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

Components

DataModel

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

ToolCrosswalk

Packages

SDKs

SourceCode

Access & Security 8

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

SecurityTxt

OAuthScopes

Compliance

Security

Scroll for all 8

Operate 5

Status, limits, changes, and where to get help

RateLimits

ChangeLog

ChangeLog

Support

Community

Commercial 6

Pricing, plans, and the legal terms of use

License

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Other 4

Properties that don't map to a standard resource type

CapabilityMap

Overlay

Overlay

Overlay

Source (apis.yml)

aid: rybbit
url: https://raw.githubusercontent.com/api-evangelist/rybbit/refs/heads/main/apis.yml
name: Rybbit
kind: company
description: Rybbit is an open-source, privacy-friendly web and product analytics platform positioned as a cookieless alternative
  to Google Analytics and Plausible. It ingests pageviews, custom events, autocaptured interactions, performance samples and
  JavaScript errors through a lightweight tracking script and an HTTP /api/track endpoint, and exposes a Bearer-key-authenticated
  Stats and Management API covering sites, sessions, users, goals, funnels, web vitals, session replays, organizations and
  teams. Since v2.8.0 Rybbit also runs a first-party hosted Model Context Protocol server at https://app.rybbit.io/api/mcp
  — 38 tools behind an OAuth 2.1 authorization server with PKCE, dynamic client registration and a 29-scope resource:action
  permission model — making it directly callable by AI agents. Rybbit publishes no OpenAPI. It can be self-hosted under AGPL-3.0,
  which ships the identical REST and MCP surface, or consumed as a managed cloud service.
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/rybbit.png
tags:
- Analytics
- Web Analytics
- Product Analytics
- Privacy
- Open Source
- Cookieless
tags_raw:
- Analytics
- Web Analytics
- Product Analytics
- Privacy
- Open Source
- Cookieless
- Open-Source
created: '2026-06-21'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: rybbit:rybbit-analytics-api
  name: Rybbit Analytics API
  description: Stats API for events and reporting per site.
  humanURL: https://rybbit.com/docs/api/getting-started
  baseURL: https://app.rybbit.io/api
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/rybbit-analytics-api-openapi.yml
  - type: Documentation
    url: https://rybbit.com/docs/api/sending-events
  - type: Documentation
    url: https://rybbit.com/docs/script
  - type: PostmanCollection
    url: collections/rybbit.postman_collection.json
  - type: OpenCollection
    url: collections/rybbit.opencollection.json
  - type: Documentation
    url: https://rybbit.com/docs/api/getting-started
  - type: APIReference
    url: https://rybbit.com/docs/api/getting-started
  - type: Documentation
    url: https://rybbit.com/docs/api/sessions/list
- aid: rybbit:rybbit-event-tracking-api
  name: Rybbit Event Tracking API
  description: Public ingestion endpoint for pageviews and custom events.
  humanURL: https://rybbit.com/docs/api/sending-events
  baseURL: https://app.rybbit.io/api
  tags:
  - Event Tracking
  properties:
  - type: OpenAPI
    url: openapi/rybbit-event-tracking-api-openapi.yml
  - type: Documentation
    url: https://rybbit.com/docs/api/sending-events
  - type: Documentation
    url: https://rybbit.com/docs/script
  - type: PostmanCollection
    url: collections/rybbit.postman_collection.json
  - type: OpenCollection
    url: collections/rybbit.opencollection.json
  - type: Documentation
    url: https://rybbit.com/docs/api/getting-started
  - type: APIReference
    url: https://rybbit.com/docs/api/getting-started
  - type: Documentation
    url: https://rybbit.com/docs/api/sessions/list
- aid: rybbit:rybbit-sessions-api
  name: Rybbit Sessions API
  description: Session-level analytics and cohort retention.
  humanURL: https://rybbit.com/docs/api/sessions/list
  baseURL: https://app.rybbit.io/api
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/rybbit-sessions-api-openapi.yml
  - type: Documentation
    url: https://rybbit.com/docs/api/sending-events
  - type: Documentation
    url: https://rybbit.com/docs/script
  - type: PostmanCollection
    url: collections/rybbit.postman_collection.json
  - type: OpenCollection
    url: collections/rybbit.opencollection.json
  - type: Documentation
    url: https://rybbit.com/docs/api/getting-started
  - type: APIReference
    url: https://rybbit.com/docs/api/getting-started
  - type: Documentation
    url: https://rybbit.com/docs/api/sessions/list
common:
- type: CapabilityMap
  url: capabilities/rybbit-capability-edges.yml
  name: Rybbit Business Capability Map
- type: License
  name: AGPL-3.0
  url: https://github.com/rybbit-io/rybbit/blob/master/LICENSE
- type: AgenticAccess
  url: agentic-access/rybbit-agentic-access.yml
- type: TrustCenter
  url: security/rybbit-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/rybbit-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/rybbit-domain-security.yml
- type: Authentication
  url: authentication/rybbit-authentication.yml
- url: https://rybbit.io/blog
  type: Blog
- type: GitHubOrganization
  url: https://github.com/rybbit-io
- type: LinkedIn
  url: https://www.linkedin.com/company/rybbit
- type: Website
  url: https://www.rybbit.io
- type: Documentation
  url: https://rybbit.com/docs
- type: Plans
  url: plans/rybbit-plans-pricing.yml
- type: RateLimits
  url: rate-limits/rybbit-rate-limits.yml
- type: FinOps
  url: finops/rybbit-finops.yml
- type: WellKnown
  url: well-known/rybbit-well-known.yml
- type: SecurityTxt
  url: well-known/rybbit-security.txt
- type: MCPServer
  url: mcp/rybbit-mcp.yml
- type: ToolCrosswalk
  url: mcp/rybbit-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/rybbit-llms.txt
- type: OAuthScopes
  url: scopes/rybbit-scopes.yml
- type: Conventions
  url: conventions/rybbit-conventions.yml
- type: ErrorCatalog
  url: errors/rybbit-problem-types.yml
- type: Lifecycle
  url: lifecycle/rybbit-lifecycle.yml
- type: ChangeLog
  url: changelog/rybbit-changelog.yml
- type: ChangeLog
  url: https://github.com/rybbit-io/rybbit/releases
- type: Packages
  url: packages/rybbit-packages.yml
- type: SDKs
  url: packages/rybbit-packages.yml
- type: Conformance
  url: conformance/rybbit-conformance.yml
- type: Compliance
  url: https://rybbit.com/security
- type: Security
  url: https://rybbit.com/security
- type: Sandbox
  url: sandbox/rybbit-sandbox.yml
- type: Components
  url: components/rybbit-components.yml
- type: DataModel
  url: data-model/rybbit-data-model.yml
- type: Overlay
  url: overlays/rybbit-analytics-api-overlay.yaml
- type: Overlay
  url: overlays/rybbit-sessions-api-overlay.yaml
- type: Overlay
  url: overlays/rybbit-event-tracking-api-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: DeveloperPortal
  url: https://rybbit.com/docs
- type: APIReference
  url: https://rybbit.com/docs/api/getting-started
- type: GettingStarted
  url: https://rybbit.com/docs/api/getting-started
- type: Support
  url: https://rybbit.com/contact
- type: Community
  url: https://discord.gg/DEhGb4hYBj
- type: Pricing
  url: https://rybbit.com/pricing
- type: SignUp
  url: https://app.rybbit.io/signup
- type: Login
  url: https://app.rybbit.io/login
- type: TermsOfService
  url: https://rybbit.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://rybbit.com/privacy
- type: SourceCode
  url: https://github.com/rybbit-io/rybbit
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 26
  pass: local-v1

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