Counter

Counter (counter.dev) is an open-source, privacy-friendly web analytics service. A lightweight tracking snippet POSTs a single aggregated hit per visit to a public collect endpoint (t.counter.dev), and a token-authenticated dashboard data feed returns aggregated stats. Counter uses no cookies, no logging, and no IP fingerprinting. It is AGPL-3.0 licensed and can be self-hosted; the hosted service is pay-what-you-want.

Counter publishes 3 API contracts indexed on the APIs.io network: Account API, Stats API, and Tracking API. Tagged areas include Web Analytics, Privacy, Open Source, Tracking, and Self-Hosted.

The Counter catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Counter’s developer surface includes authentication, documentation, engineering blog, sandbox, CLI, getting-started guide, support, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.3/100 developing ▬ flat Agent 26/100 agent aware Front door AI 1/6 silent Heartbeat 28/100 slowing open core · AGPL-3.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

1 published contract 3 Agent Skills

Web Analytics Privacy Open Source Tracking Self-Hosted

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

Stats

GET /query GET /dump

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 48.3/100 · developing

Contract Quality 9.7 / 19

Developer Ergonomics 9.7 / 15

Access Clarity 6.7 / 15

Operational Transparency 3.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · 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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 51.9 — up to +12.0 composite points
Access Clarity scores 44.7 — up to +11.1 composite points
Contract Governance scores 18.2 — up to +9.8 composite points

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.

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/counter-dev/apis.yml: open an issue on github.com/api-evangelist/counter-dev 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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

Counter Account API

The Account API from Counter — 4 operation(s) for account.

Counter Stats API

The Stats API from Counter — 2 operation(s) for stats.

Counter Tracking API

The Tracking API from Counter — 2 operation(s) for tracking.

Open Collections 4

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

Counter Account API

OPEN COLLECTION

Counter Account Stats API

OPEN COLLECTION

Counter Account Tracking API

OPEN COLLECTION

Counter API

OPEN COLLECTION

Agent Skills 3

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

counter-dev-install-tracking

AGENT SKILL

counter-dev-read-site-stats

AGENT SKILL

counter-dev-stream-live-stats

AGENT SKILL

Counter API pricing

Prices published by Counter, read 2026-08-13 from counter.dev/. A free plan or tier is listed.

Plan	Price
Hosted (Pay What You Want) free	—
Self-Hosted (Open Source) free	—

Plan details, limits and sources →

Rate limits

Tracking (collect) requests: see provider documentation requests
Stats / dashboard data requests: see provider documentation requests
Account endpoints: see provider documentation requests

Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Counter Dev Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Counter Dev Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Counter

SLA

FinOps 1

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

Counter Dev Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Counter Stats Stream

Counter publishes NO AsyncAPI of its own. This document is DERIVED by API Evangelist from the AGPL-3.0 server source at https://github.com/ihucos/counter.dev/blob/master/backend...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Counter API Rules

57 rules · 55 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 3

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.

Counter Dev Account Overlay

8 actions · update · counter-dev-account-api-openapi.yml

DERIVED

Counter Dev Stats Overlay

6 actions · update · counter-dev-stats-api-openapi.yml

DERIVED

Counter Dev Tracking Overlay

6 actions · update · counter-dev-tracking-api-openapi.yml

DERIVED

Security Posture 2

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

Counter Dev Authentication

apiKey · 2 schemes

SECURITY

Counter Dev Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Counter Dev Agentic Access

8 operations · 5 acting · 1 human-in-the-loop

8 operations · 5 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

AsyncAPI

AsyncAPI

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Components

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

CLI

SourceCode

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

HelpCenter

HelpCenter

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

FinOps

PrivacyPolicy

License

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: counter-dev
url: https://raw.githubusercontent.com/api-evangelist/counter-dev/refs/heads/main/apis.yml
name: Counter
kind: company
description: Counter (counter.dev) is an open-source, privacy-friendly web analytics service. A lightweight tracking snippet
  POSTs a single aggregated hit per visit to a public collect endpoint (t.counter.dev), and a token-authenticated dashboard
  data feed returns aggregated stats. Counter uses no cookies, no logging, and no IP fingerprinting. It is AGPL-3.0 licensed
  and can be self-hosted; the hosted service is pay-what-you-want.
deliveryModel:
  model: open-core
  license: AGPL-3.0
  license_evidence:
    repo: ihucos/counter.dev
    spdx: AGPL-3.0
    stars: 1009
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: medium
  source:
  - openapi
  - pricing
  - repository-license
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Open access
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/counter-dev.png
tags:
- Web Analytics
- Privacy
- Open Source
- Tracking
- Self-Hosted
tags_raw:
- Web Analytics
- Privacy
- Open Source
- Tracking
- Self-Hosted
- Open-Source
created: '2026-06-21'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: counter-dev:counter-dev-account-api
  name: Counter Account API
  description: The Account API from Counter — 4 operation(s) for account.
  humanURL: https://counter.dev/help/integration.html
  baseURL: https://t.counter.dev
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/counter-dev-account-api-openapi.yml
  - type: Overlay
    url: overlays/counter-dev-account-overlay.yaml
  - type: Documentation
    url: https://counter.dev/help/integration.html
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/blob/master/docs/script.js
  - type: PostmanCollection
    url: collections/counter-dev.postman_collection.json
  - type: OpenCollection
    url: collections/counter-dev.opencollection.json
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/blob/master/backend/endpoints/query.go
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/tree/master/backend/endpoints
- aid: counter-dev:counter-dev-stats-api
  name: Counter Stats API
  description: The Stats API from Counter — 2 operation(s) for stats.
  humanURL: https://counter.dev/help/integration.html
  baseURL: https://t.counter.dev
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/counter-dev-stats-api-openapi.yml
  - type: Overlay
    url: overlays/counter-dev-stats-overlay.yaml
  - type: Documentation
    url: https://counter.dev/help/integration.html
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/blob/master/docs/script.js
  - type: PostmanCollection
    url: collections/counter-dev.postman_collection.json
  - type: OpenCollection
    url: collections/counter-dev.opencollection.json
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/blob/master/backend/endpoints/query.go
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/tree/master/backend/endpoints
- aid: counter-dev:counter-dev-tracking-api
  name: Counter Tracking API
  description: The Tracking API from Counter — 2 operation(s) for tracking.
  humanURL: https://counter.dev/help/integration.html
  baseURL: https://t.counter.dev
  tags:
  - Tracking
  properties:
  - type: OpenAPI
    url: openapi/counter-dev-tracking-api-openapi.yml
  - type: Overlay
    url: overlays/counter-dev-tracking-overlay.yaml
  - type: Documentation
    url: https://counter.dev/help/integration.html
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/blob/master/docs/script.js
  - type: PostmanCollection
    url: collections/counter-dev.postman_collection.json
  - type: OpenCollection
    url: collections/counter-dev.opencollection.json
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/blob/master/backend/endpoints/query.go
  - type: APIReference
    url: https://github.com/ihucos/counter.dev/tree/master/backend/endpoints
common:
- type: CapabilityMap
  url: capabilities/counter-dev-capability-edges.yml
  name: Counter Business Capability Map
- type: AgenticAccess
  url: agentic-access/counter-dev-agentic-access.yml
- type: DomainSecurity
  url: security/counter-dev-domain-security.yml
- type: Authentication
  url: authentication/counter-dev-authentication.yml
- type: GitHubOrganization
  url: https://github.com/ihucos/counter.dev
- type: Website
  url: https://counter.dev/
- type: Documentation
  url: https://counter.dev/help/integration.html
- type: Plans
  url: plans/counter-dev-plans-pricing.yml
- type: RateLimits
  url: rate-limits/counter-dev-rate-limits.yml
- type: FinOps
  url: finops/counter-dev-finops.yml
- url: https://counter.dev/blog
  type: Blog
- type: Packages
  url: packages/counter-dev-packages.yml
- type: AsyncAPI
  url: asyncapi/counter-dev-stats-asyncapi.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/counter-dev-llms.txt
- type: Conventions
  url: conventions/counter-dev-conventions.yml
- type: ErrorCatalog
  url: errors/counter-dev-problem-types.yml
- type: Lifecycle
  url: lifecycle/counter-dev-lifecycle.yml
- type: Conformance
  url: conformance/counter-dev-conformance.yml
- type: DataModel
  url: data-model/counter-dev-data-model.yml
- type: Sandbox
  url: sandbox/counter-dev-sandbox.yml
- type: CLI
  url: cli/counter-dev-cli.yml
- type: Components
  url: components/counter-dev-components.yml
- type: GettingStarted
  url: https://counter.dev/help/integration.html
- type: HelpCenter
  url: https://counter.dev/help/
- type: Support
  url: https://github.com/ihucos/counter.dev/issues
- type: SignUp
  url: https://counter.dev/welcome.html?sign-up
- type: PrivacyPolicy
  url: https://counter.dev/pages/privacy.html
- type: SourceCode
  url: https://github.com/ihucos/counter.dev
- type: License
  url: https://github.com/ihucos/counter.dev/blob/master/LICENSE
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 20
  pass: local-v1

Counter API — frequently asked questions

Does Counter have an API?

Yes. APIs.io lists 3 APIs from Counter, including Counter Account API, Counter Stats API and Counter Tracking API.

Is there an OpenAPI specification for the Counter API?

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

How do I authenticate with the Counter API?

Counter uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Counter Dev Authentication.

How much does the Counter API cost?

APIs.io lists 2 pricing plans for Counter, with each plan's price, limits and inclusions under Pricing on this page.

Is the Counter API ready for AI agents?

Counter has a Kin Score of 48.3 out of 100 (developing) and an Agent Readiness score of 26.2 (agent-aware), scored by API Evangelist on 2026-11-06.

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