Apstal

AI-first website analytics and visitor tracking platform that replaces traditional dashboards with a natural-language chatbot interface, offering conversational analytics, cookieless tracking, session replays, heatmaps, funnels, error tracking, Core Web Vitals and AI-agent traffic detection. Apstal is agent-native by design: its primary programmatic surface is a hosted MCP server at https://apstal.com/api/mcp (JSON-RPC 2.0 over Streamable HTTP, protocol 2025-06-18) whose tools/list is answerable anonymously, backed by a documented REST ingestion and stats API, a WebSocket real-time stream, an SSE natural-language query endpoint, an A2A agent card, two provider-authored Agent Skills, an llms.txt, OAuth 2.0 authorization-server and protected-resource metadata, and an MCP server card. The company is based in Poland and publishes a GDPR Data Processing Agreement.

Apstal publishes 2 APIs on the APIs.io network. Tagged areas include Analytics, Web Analytics, Privacy, Session Replay, and Heatmaps.

The Apstal catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Apstal’s developer surface includes authentication, documentation, API reference, getting-started guide, quickstart, support, engineering blog, and 27 more developer resources.

🌐 Visit website 📡 Source on GitHub

56.4/100 strong ▬ flat Agent 39/100 agent ready Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

AccessFreemiumSelf serve⚡ Free to try

2 APIs 1 MCP Servers

Analytics Web Analytics Privacy Session Replay Heatmaps MCP Agent-Native Cookieless llms-txt BigQuery GDPR A2A Agent Skills Bot Detection Core Web Vitals

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 56.4/100 · strong

Contract Quality 8.3 / 21

Developer Ergonomics 12.1 / 17

Access Clarity 12.1 / 17

Operational Transparency 4.7 / 11

Contract Governance 1.9 / 10

Discoverability 6.0 / 9

Regulatory Posture 5.9 / 15

Agent readiness — 39/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 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

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/apstal: 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 2

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

Apstal MCP Server

Hosted MCP server exposing Apstal analytics via JSON-RPC 2.0 over Streamable HTTP. Public tools (login, register, server_info) and authenticated tools (execute_sql, get_analytic...

Apstal Analytics API

Documented REST surface for programmatic access to Apstal analytics: POST /api/v1/m for batched event ingestion (max 100 events per request), POST /api/v1/stream for rrweb sessi...

MCP Servers 1

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

Apstal MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Apstal Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Apstal Rate Limits

5 limits

RATE LIMITS

Event Specifications 1

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

Apstal Realtime Events

ASYNCAPI

Security Posture 2

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

Apstal Authentication

apiKey/http/oauth2 · 3 schemes

SECURITY

Apstal Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Apstal Scopes

3 scopes · authorizationCode/refreshToken

3 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

Quickstart

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Lifecycle

Components

DataModel

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

OAuthScopes

Compliance

Operate 4

Status, limits, changes, and where to get help

StatusPage

RateLimits

Support

HelpCenter

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

AgentCard

AgentCard

EventSurface

EventSurface

Source (apis.yml)

name: Apstal
description: 'AI-first website analytics and visitor tracking platform that replaces traditional dashboards with a natural-language
  chatbot interface, offering conversational analytics, cookieless tracking, session replays, heatmaps, funnels, error tracking,
  Core Web Vitals and AI-agent traffic detection. Apstal is agent-native by design: its primary programmatic surface is a
  hosted MCP server at https://apstal.com/api/mcp (JSON-RPC 2.0 over Streamable HTTP, protocol 2025-06-18) whose tools/list
  is answerable anonymously, backed by a documented REST ingestion and stats API, a WebSocket real-time stream, an SSE natural-language
  query endpoint, an A2A agent card, two provider-authored Agent Skills, an llms.txt, OAuth 2.0 authorization-server and protected-resource
  metadata, and an MCP server card. The company is based in Poland and publishes a GDPR Data Processing Agreement.'
url: https://raw.githubusercontent.com/api-evangelist/apstal/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
created: '2026-07-22'
modified: '2026-08-13'
image: https://apstal.com/logos/apstal-mark.svg
specificationVersion: '0.23'
tags:
- Analytics
- Web Analytics
- Privacy
- Session Replay
- Heatmaps
- MCP
- Agent-Native
- Cookieless
- llms-txt
- BigQuery
- GDPR
- A2A
- Agent Skills
- Bot Detection
- Core Web Vitals
tags_raw:
- analytics
- web-analytics
- privacy
- session-replay
- heatmaps
- mcp
- agent-native
- cookieless
- llms-txt
- bigquery
- gdpr
- a2a
- agent-skills
- bot-detection
- core-web-vitals
apis:
- name: Apstal MCP Server
  description: Hosted MCP server exposing Apstal analytics via JSON-RPC 2.0 over Streamable HTTP. Public tools (login, register,
    server_info) and authenticated tools (execute_sql, get_analytics, list_projects, register_domain, get_schema, generate_api_key)
    via Bearer token auth.
  humanURL: https://apstal.com/docs/mcp
  baseURL: https://apstal.com/api/mcp
  tags:
  - Analytics
  - Web Analytics
  - Privacy
  - Session Replay
  - Heatmaps
  - MCP
  - Agent-Native
  - Cookieless
  - llms-txt
  - BigQuery
  - GDPR
  tags_raw:
  - analytics
  - web-analytics
  - privacy
  - session-replay
  - heatmaps
  - mcp
  - agent-native
  - cookieless
  - llms-txt
  - bigquery
  - gdpr
  properties:
  - type: MCPServer
    url: mcp/apstal-mcp.yml
  - type: ToolCrosswalk
    url: mcp/apstal-tool-crosswalk.yml
  - type: Documentation
    url: https://apstal.com/docs/mcp
  - type: LLMsTxt
    url: llms/apstal-llms.txt
- name: Apstal Analytics API
  description: 'Documented REST surface for programmatic access to Apstal analytics: POST /api/v1/m for batched event ingestion
    (max 100 events per request), POST /api/v1/stream for rrweb session-replay chunk upload, GET /api/analytics/quick for
    aggregated dashboard metrics, and POST /api/ai/semantic for natural-language analytics queries answered as a text/event-stream.
    A WebSocket service at wss://ws.apstal.com carries tracker, dashboard and replay-viewer connections. Authentication is
    a Bearer API key (apstal_ prefix) or a Supabase session JWT. No OpenAPI is published.'
  humanURL: https://apstal.com/docs/api
  baseURL: https://apstal.com/api
  tags:
  - Analytics
  - Web Analytics
  - Session Replay
  - Core Web Vitals
  - WebSocket
  - Server-Sent Events
  tags_raw:
  - analytics
  - web-analytics
  - session-replay
  - core-web-vitals
  - websocket
  - server-sent-events
  properties:
  - type: APIReference
    url: https://apstal.com/docs/api
  - type: Documentation
    url: https://apstal.com/docs
maintainers:
- FN: Apstal
  url: https://apstal.com
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 95
  at: '2026-07-22T20:28:11.444Z'
common:
- type: Website
  url: https://www.apstal.com/
- type: DomainSecurity
  url: security/apstal-domain-security.yml
- type: WellKnown
  url: well-known/apstal-well-known.yml
- type: AgentCard
  url: a2a/apstal-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/apstal-llms.txt
- type: Authentication
  url: authentication/apstal-authentication.yml
- type: OAuthScopes
  url: scopes/apstal-scopes.yml
- type: ErrorCatalog
  url: errors/apstal-problem-types.yml
- type: Conventions
  url: conventions/apstal-conventions.yml
- type: Lifecycle
  url: lifecycle/apstal-lifecycle.yml
- type: StatusPage
  url: https://status.apstal.com
- type: Plans
  url: plans/apstal-plans-pricing.yml
- type: RateLimits
  url: rate-limits/apstal-rate-limits.yml
- type: Packages
  url: packages/apstal-packages.yml
- type: SDKs
  url: packages/apstal-packages.yml
- type: Components
  url: components/apstal-components.yml
- type: DataModel
  url: data-model/apstal-data-model.yml
- type: Conformance
  url: conformance/apstal-conformance.yml
- type: Compliance
  url: https://apstal.com/dpa
- type: EventSurface
  url: asyncapi/apstal-realtime-events.yml
- type: DeveloperPortal
  url: https://apstal.com/docs
- type: Documentation
  url: https://apstal.com/docs
- type: APIReference
  url: https://apstal.com/docs/api
- type: GettingStarted
  url: https://apstal.com/docs/getting-started
- type: Quickstart
  url: https://apstal.com/docs/quickstart
- type: Support
  url: https://apstal.com/contact
- type: HelpCenter
  url: https://apstal.com/faq
- type: Blog
  url: https://apstal.com/blog
- type: GitHubOrganization
  url: https://github.com/apstal
- type: Pricing
  url: https://apstal.com/pricing
- type: SignUp
  url: https://apstal.com/login
- type: TermsOfService
  url: https://apstal.com/terms
- type: PrivacyPolicy
  url: https://apstal.com/privacy
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 27
  pass: local-v1

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/apstal"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/apstal/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/apstal/evidence"

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.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.