Rybbit website screenshot

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 API contracts indexed 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.

The Rybbit catalog on APIs.io includes 1 Spectral governance ruleset.

Rybbit’s developer surface includes authentication, engineering blog, documentation, changelog, sandbox, API reference, getting-started guide, and 48 more developer resources.

69.5/100 exemplar ▬ flat Agent 46/100 agent ready Front door AI 4/6 moderate Heartbeat 96/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →
AccessPaid
1 published contract 1 MCP Servers 4 Agent Skills
AnalyticsWeb AnalyticsProduct AnalyticsPrivacyOpen SourceCookieless

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

What people ask Rybbit 3

The questions people put to an LLM, and the jobs they hand an agent, that Rybbit's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

Rybbit Analytics API List the visitors tracked on a site “Can I page through every user Rybbit has recorded for one of my sites?” Look up one visitor's profile “How do I pull up the profile of a single visitor by their user ID?” List every visit made by one user “Which visits has one particular user made to my site over time?” Count sessions per user on a site “How many times has each user come back to my site?”
Rybbit Sessions API List sessions on a site “How do I list all the visits to my site between two dates?” Replay the pageviews and events of one session “What pages did a visitor view, in order, during one specific session?” Map where a site's sessions come from “Where in the world are my site's visits coming from?” Analyze cohort retention for a site “How many visitors come back after their first visit, grouped by cohort?”
Rybbit Event Tracking API Record a pageview or custom event “How do I send a pageview to Rybbit from my server instead of the tracking script?”

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0
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/.
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Agent readiness — checks not met, largest first (exact, from this profile):
3 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
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Ask about:
Rybbit · a person reads this and replies by email.
or email info@apis.io
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 the provider profile at artifacts.apis.io/rybbit/apis.yml: open an issue on github.com/api-evangelist/rybbit to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 5

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

measured — observed by APIs.io (documented)
measured — observed by APIs.io (verified)
measured — observed by APIs.io (published)
measured — observed by APIs.io (published)
measured — observed by APIs.io (declared)

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 4

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

Rybbit Analytics 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

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Rybbit API pricing

Prices published by Rybbit, read 2026-10-28 from rybbit.com/pricing.

PlanPrice
Standard $13/month
Includes: Up to 5 websites, up to 3 team members, 3 years data retention
Pro $26/month
Includes: Unlimited websites, unlimited team members, session replays, 5 year data retention
Enterprise Custom
Includes: Everything in Pro, SSO, infinite retention, dedicated isolated instance, on-premise installation

Plan details, limits and sources →

Rate limits

All 5 limits →

Billed by: 100k monthly pageviews · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Rybbit Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rybbit Rate Limits

5 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Rybbit

12 quoted statements, read from Rybbit's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Rybbit

13 quoted statements, read from Rybbit's own page on 2026-11-10.

PRIVACY

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

Rybbit

3 quoted statements, read from Rybbit's own page on 2026-11-10.

COMPLIANCE

Eligibility 1

Who may sign up and where, quoted from its own terms.

Rybbit

2 quoted statements, read from Rybbit's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Rybbit

1 quoted statement, read from Rybbit's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Rybbit

1 quoted statement, read from Rybbit's own page on 2026-11-10.

LICENSE

FinOps 1

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

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Rybbit API Rules

60 rules · 58 error-severity 1 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 6

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Rybbit Analytics Api Overlay

6 actions · update · rybbit-analytics-api-openapi.yml

DERIVED

Rybbit Analytics Api Phrasing Overlay

6 actions · phrasing · rybbit-analytics-api-openapi.yml

GENERATED

Rybbit Event Tracking Api Overlay

4 actions · update · rybbit-event-tracking-api-openapi.yml

DERIVED

Rybbit Event Tracking Api Phrasing Overlay

2 actions · phrasing · rybbit-event-tracking-api-openapi.yml

GENERATED

Rybbit Sessions Api Overlay

5 actions · update · rybbit-sessions-api-openapi.yml

DERIVED

Rybbit Sessions Api Phrasing Overlay

5 actions · phrasing · rybbit-sessions-api-openapi.yml

GENERATED

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 (API Evangelist recommendations) 1

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

Rybbit Agentic Access

10 operations · 1 acting

10 operations · 1 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Build 5

SDKs, sample code, and the tooling you integrate with

Access & Security 8

Authentication, authorization, and security posture

Scroll for all 8

Operate 5

Status, limits, changes, and where to get help

Commercial 8

Pricing, plans, and the legal terms of use

Scroll for all 8

Company 3

The organization behind the API

Other 7

Properties that don't map to a standard resource type

Scroll for all 7

Source (apis.yml)

apis.yml Raw ↑
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: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-13'
  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
- type: UsageTerms
  url: terms/rybbit-terms-of-service.yml
- type: DataProcessing
  url: privacy/rybbit-privacy-policy.yml
- type: Attestations
  url: compliance/rybbit-compliance.yml
- type: Eligibility
  url: eligibility/rybbit-eligibility.yml
- type: AIPreferences
  url: ai-preferences/rybbit-ai-preferences.yml
- type: DataLicense
  url: data-license/rybbit-data-license.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 26
  pass: local-v1

Rybbit API — frequently asked questions

Does Rybbit have an API?

Yes. APIs.io lists 3 APIs from Rybbit, including Rybbit Analytics API, Rybbit Event Tracking API and Rybbit Sessions API.

Is there an OpenAPI specification for the Rybbit API?

Yes. APIs.io indexes 3 OpenAPI specifications for Rybbit, each linked for download from this page.

How do I authenticate with the Rybbit API?

Rybbit documents its authentication (http/oauth2 · 3 schemes). The details are profiled on APIs.io as Rybbit Authentication.

How much does the Rybbit API cost?

Rybbit publishes its prices; its Standard plan is $13/month as of 2026-10-28. APIs.io lists 3 pricing plans for Rybbit, with each plan's price, limits and inclusions under Pricing on this page.

Does Rybbit have an MCP server?

Yes. APIs.io lists 1 MCP server for Rybbit: 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 exposes it at

Is the Rybbit API ready for AI agents?

Rybbit has a Kin Score of 69.5 out of 100 (exemplar) and an Agent Readiness score of 46.3 (agent-ready), scored by API Evangelist on 2026-11-13.

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