Kissmetrics

Kissmetrics is a product and behavioral analytics platform that tracks individual people across web and mobile rather than sessions, resolving every event to a persistent identity and surfacing funnels, cohorts, retention, paths, revenue and A/B test reports against that person-level history. Product, marketing and growth teams use it to understand user journeys and pinpoint conversion drop-off, and it now markets an LLM Acquisition report that measures human traffic arriving from AI assistants. Two programmable surfaces are published: a Basic-auth REST Query API at query.kissmetrics.io/v3 for getting data out — account metadata, asynchronous ad-hoc and saved queries, SQL, and CSV/S3 exports — and a query-string tracking beacon at trk.kissmetrics.io for getting events in, alongside first-party Ruby, PHP, Python, iOS and Android libraries and a hosted JavaScript snippet.

Kissmetrics publishes 2 API contracts indexed on the APIs.io network, including REST API, and 1 more. Tagged areas include Analytics, Product Analytics, Behavioral Analytics, Marketing Analytics, and Customer Analytics.

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

Kissmetrics’ developer surface includes authentication, code examples, documentation, API reference, getting-started guide, pricing, signup flow, and 35 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

55.4/100 strong ▬ flat Agent 45/100 agent ready Front door AI 4/6 moderate Heartbeat 36/100 going silent saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

17 published contracts 1 Agent Skills

Analytics Product Analytics Behavioral Analytics Marketing Analytics Customer Analytics Event Tracking Funnels Cohorts Retention Attribution Data Export

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

ProductsQueries

GET /products/{product_id}/events GET /products GET /products/{product_id}/reports

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 55.4/100 · strong

Contract Quality 9.7 / 19

Developer Ergonomics 9.1 / 15

Access Clarity 12.5 / 15

Operational Transparency 2.8 / 10

Contract Governance 1.6 / 9

Discoverability 6.0 / 8

Regulatory Posture 2.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 45/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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 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):

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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified) Ask about this →

4 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 51.7 — up to +12.1 composite points Ask about this →
Contract Governance scores 18.2 — up to +9.8 composite points Ask about this →
Operational Transparency scores 28.6 — up to +9.3 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/kissmetrics/apis.yml: open an issue on github.com/api-evangelist/kissmetrics 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	covered	33.7	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 3

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

Agent Skills

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 2

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

Kissmetrics REST API

REST API for programmatic access to Kissmetrics reports, segments, events, properties and account metadata. Queries are asynchronous: a POST to /queries, /queries/report or /que...

Kissmetrics Tracking API (Beacon)

Event ingest surface. Three query-string endpoints record an event (/e), set person properties (/s) and irreversibly alias two identities to one person (/a), accepting GET or PO...

Open Collections 3

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

Kissmetrics REST API — exports

OPEN COLLECTION

Kissmetrics REST API — products

OPEN COLLECTION

Kissmetrics REST API — queries

OPEN COLLECTION

Agent Skills 1

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

km-installer

AGENT SKILL

Kissmetrics API pricing

Prices published by Kissmetrics, read 2026-10-28 from kissmetrics.io/pricing.

Plan	Price
Free	$0 Includes: 100k events a month, 3 seats, no card; up to 3 active integrations; API access
Growth	$99/ month, from 500k events a month included. Includes: from 500k events a month; unlimited seats and integrations
More than 5M	Let's talk Includes: More than 5M events a month

Plan details, limits and sources →

Billed by: events · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Kissmetrics Plans Pricing

3 plans

PLANS

Kissmetrics Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kissmetrics Rate Limits

1 limits

RATE LIMITS

Terms of Service 1

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

Kissmetrics

11 quoted statements, read from Kissmetrics's own page on 2026-11-09.

TERMS

Privacy & Data 1

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

Kissmetrics

17 quoted statements, read from Kissmetrics's own page on 2026-11-09.

PRIVACY

Eligibility 1

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

Kissmetrics

4 quoted statements, read from Kissmetrics's own page on 2026-11-09.

ELIGIBILITY

AI Preferences 1

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

Kissmetrics

1 quoted statement, read from Kissmetrics's own page on 2026-11-09.

AI PREFS

Data License 1

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

Kissmetrics

1 quoted statement, read from Kissmetrics's own page on 2026-11-09.

LICENSE

FinOps 1

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

Kissmetrics Finops

FINOPS

Spectral Rules 1

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

Kissmetrics API Rules

46 rules · 41 error-severity 4 warn-severity 1 info-severity

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.

Kissmetrics Exports Overlay

5 actions · update · kissmetrics-exports-api-openapi.yml

GENERATED

Kissmetrics Products Overlay

5 actions · update · kissmetrics-products-api-openapi.yml

GENERATED

Kissmetrics Queries Overlay

7 actions · update · kissmetrics-queries-api-openapi.yml

GENERATED

Security Posture 2

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

Kissmetrics Authentication

http · 1 scheme

SECURITY

Kissmetrics Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Kissmetrics Agentic Access

11 operations · 5 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Signup

Signup

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AIPreferences

AIPreferences

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

X-MCPServerCandidate

AgentSkill

LLMsTxt

LlmsText

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

Lifecycle

ErrorCatalog

DataModel

Build 5

SDKs, sample code, and the tooling you integrate with

Examples

Packages

SDKs

ToolCrosswalk

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Roadmap

Roadmap

Support

Support

Commercial 6

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 4

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 4

Properties that don't map to a standard resource type

CapabilityMap

Product Page

DataProcessing

Eligibility

Source (apis.yml)

aid: kissmetrics
name: Kissmetrics
description: 'Kissmetrics is a product and behavioral analytics platform that tracks individual people across web and mobile
  rather than sessions, resolving every event to a persistent identity and surfacing funnels, cohorts, retention, paths, revenue
  and A/B test reports against that person-level history. Product, marketing and growth teams use it to understand user journeys
  and pinpoint conversion drop-off, and it now markets an LLM Acquisition report that measures human traffic arriving from
  AI assistants. Two programmable surfaces are published: a Basic-auth REST Query API at query.kissmetrics.io/v3 for getting
  data out — account metadata, asynchronous ad-hoc and saved queries, SQL, and CSV/S3 exports — and a query-string tracking
  beacon at trk.kissmetrics.io for getting events in, alongside first-party Ruby, PHP, Python, iOS and Android libraries and
  a hosted JavaScript snippet.'
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: public
  onboarding: self-service
  trial: true
  try_now: true
  public: true
  label: Public free tier
  confidence: high
  source:
  - https://kissmetrics.io/pricing
  - https://ai.kissmetrics.io/get-started
  generated: '2026-08-13'
  method: searched
  note: Free workspace to 100,000 events/month with no card, and Kissmetrics states the entire CLI and API are free with no
    paywall. Paid tiers start at $99/month.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kissmetrics.png
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- Analytics
- Product Analytics
- Behavioral Analytics
- Marketing Analytics
- Customer Analytics
- Event Tracking
- Funnels
- Cohorts
- Retention
- Attribution
- Data Export
url: https://raw.githubusercontent.com/api-evangelist/kissmetrics/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: kissmetrics:rest-api
  name: Kissmetrics REST API
  description: 'REST API for programmatic access to Kissmetrics reports, segments, events, properties and account metadata.
    Queries are asynchronous: a POST to /queries, /queries/report or /queries/metric returns a query id which is polled at
    /queries/{id} and cancelled with a DELETE, and results are materialized through /exports to CSV or a customer S3 bucket.
    Nine query types are published, including cohort, funnel, ab_test, people_search and raw sql. Used to pull report data
    into dashboards, spreadsheets and BI tools, and to export user segments to destinations without native integrations. Authentication
    is HTTP Basic in the Authorization header. The API is self-declared beta and rate limited to 15 requests per minute.'
  humanURL: https://support.kissmetrics.io/reference/overview-1
  baseURL: https://query.kissmetrics.io/v3
  tags:
  - Analytics
  - Reports
  - Segments
  - Data Export
  - SQL
  properties:
  - type: Documentation
    url: https://support.kissmetrics.io/reference/overview-1
  - type: APIReference
    url: https://support.kissmetrics.io/reference
  - type: Authorization
    url: https://support.kissmetrics.io/reference/authorization
  - type: API Specifications
    url: https://support.kissmetrics.io/reference/api-specifications-1
  - type: URL API
    url: https://support.kissmetrics.io/reference/url-api
  - type: OpenAPI
    url: openapi/kissmetrics-products-api-openapi.yml
  - type: OpenAPI
    url: openapi/kissmetrics-queries-api-openapi.yml
  - type: OpenAPI
    url: openapi/kissmetrics-exports-api-openapi.yml
  - type: Overlay
    url: overlays/kissmetrics-products-overlay.yaml
  - type: Overlay
    url: overlays/kissmetrics-queries-overlay.yaml
  - type: Overlay
    url: overlays/kissmetrics-exports-overlay.yaml
  - type: Authentication
    url: authentication/kissmetrics-authentication.yml
  - type: Conventions
    url: conventions/kissmetrics-conventions.yml
  - type: ErrorCatalog
    url: errors/kissmetrics-problem-types.yml
  - type: DataModel
    url: data-model/kissmetrics-data-model.yml
  - type: Examples
    url: examples/kissmetrics-rest-api-examples.yml
  - type: RateLimits
    url: rate-limits/kissmetrics-rate-limits.yml
  - type: Lifecycle
    url: lifecycle/kissmetrics-lifecycle.yml
- aid: kissmetrics:tracking-api
  name: Kissmetrics Tracking API (Beacon)
  description: Event ingest surface. Three query-string endpoints record an event (/e), set person properties (/s) and irreversibly
    alias two identities to one person (/a), accepting GET or POST with the product key in `_k`, the person identity in `_p`
    and arbitrary additional keys as person properties. It powers the hosted JavaScript snippet, the first-party Ruby, PHP,
    Python, iOS and Android libraries, and the 1x1 pixel beacon used for email and ad impression tracking. By design it answers
    200 OK with a 1x1 GIF to every request, valid or not, so a 200 is not evidence an event was accepted. This entry replaces
    the former Kissmetrics Data Out API entry, whose only documentation host, oldsupport.kissmetrics.com, no longer resolves
    (probed 2026-08-13).
  humanURL: https://support.kissmetrics.io/reference/api-specifications-1
  baseURL: https://trk.kissmetrics.io
  tags:
  - Analytics
  - Event Tracking
  - Data Ingest
  - Identity Resolution
  properties:
  - type: Documentation
    url: https://support.kissmetrics.io/reference/api-specifications-1
  - type: Beacon API
    url: https://support.kissmetrics.io/reference/beacon-api-1
  - type: GettingStarted
    url: https://support.kissmetrics.io/docs/installing-the-javascript-library-quickstart
  - type: AgentSkill
    url: skills/kissmetrics-km-installer.md
  - type: SDKs
    url: packages/kissmetrics-packages.yml
common:
- type: CapabilityMap
  url: capabilities/kissmetrics-capability-edges.yml
  name: Kissmetrics Business Capability Map
- type: AgenticAccess
  url: agentic-access/kissmetrics-agentic-access.yml
- type: Authentication
  url: authentication/kissmetrics-authentication.yml
- type: DomainSecurity
  url: security/kissmetrics-domain-security.yml
- type: Conventions
  url: conventions/kissmetrics-conventions.yml
- type: Conformance
  url: conformance/kissmetrics-conformance.yml
- type: Lifecycle
  url: lifecycle/kissmetrics-lifecycle.yml
- type: ErrorCatalog
  url: errors/kissmetrics-problem-types.yml
- type: DataModel
  url: data-model/kissmetrics-data-model.yml
- type: Examples
  url: examples/kissmetrics-rest-api-examples.yml
- type: RateLimits
  url: rate-limits/kissmetrics-rate-limits.yml
- type: Plans
  url: plans/kissmetrics-plans-pricing.yml
- type: Packages
  url: packages/kissmetrics-packages.yml
- type: SDKs
  url: packages/kissmetrics-packages.yml
- type: X-MCPServerCandidate
  url: mcp/kissmetrics-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: ToolCrosswalk
  url: mcp/kissmetrics-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/kissmetrics-llms.txt
- type: LinkedIn
  url: https://www.linkedin.com/company/kissmetrics
- type: Website
  url: https://www.kissmetrics.io
- type: DeveloperPortal
  url: https://support.kissmetrics.io
- type: Documentation
  url: https://support.kissmetrics.io/docs
- type: APIReference
  url: https://support.kissmetrics.io/reference
- type: GettingStarted
  url: https://support.kissmetrics.io/docs/installing-the-javascript-library-quickstart
- type: Product Page
  url: https://www.kissmetrics.io/product/workflows/api
- type: GitHubOrganization
  url: https://github.com/kissmetrics
- type: Roadmap
  url: https://kissmetrics.io/updates
- type: Pricing
  url: https://www.kissmetrics.io/pricing
- type: SignUp
  url: https://ai.kissmetrics.io/get-started
- type: Login
  url: https://ai.kissmetrics.io/login
- type: TermsOfService
  url: https://www.kissmetrics.io/terms
- type: PrivacyPolicy
  url: https://www.kissmetrics.io/privacy
- type: Signup
  url: https://www.kissmetrics.io/signup
- type: Support
  url: https://support.kissmetrics.io
- type: LlmsText
  url: https://kissmetrics.io/llms.txt
- type: Blog
  url: https://www.kissmetrics.io/blog
- url: https://www.kissmetrics.io/feed.xml
  type: BlogRSS
- type: UsageTerms
  url: terms/kissmetrics-terms-of-service.yml
- type: DataProcessing
  url: privacy/kissmetrics-privacy-policy.yml
- type: Eligibility
  url: eligibility/kissmetrics-eligibility.yml
- type: AIPreferences
  url: ai-preferences/kissmetrics-ai-preferences.yml
- type: DataLicense
  url: data-license/kissmetrics-data-license.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 42
  pass: local-v1

Kissmetrics API — frequently asked questions

Does Kissmetrics have an API?

Yes. APIs.io lists 2 APIs from Kissmetrics, including Kissmetrics REST API and Kissmetrics Tracking API (Beacon).

Is there an OpenAPI specification for the Kissmetrics API?

Yes. APIs.io indexes 1 OpenAPI specification for Kissmetrics, each linked for download from this page.

How do I authenticate with the Kissmetrics API?

Kissmetrics uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Kissmetrics Authentication.

How much does the Kissmetrics API cost?

Kissmetrics publishes its prices; its Free plan is $0 as of 2026-10-28. APIs.io lists 3 pricing plans for Kissmetrics, with each plan's price, limits and inclusions under Pricing on this page.

Is the Kissmetrics API ready for AI agents?

Kissmetrics has a Kin Score of 55.4 out of 100 (strong) and an Agent Readiness score of 44.8 (agent-ready), scored by API Evangelist on 2026-11-13.

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