Userlens

Userlens is an AI-native customer success platform for B2B SaaS that deploys LLM-powered agents to monitor every customer account, predict churn from actual product usage, and surface expansion opportunities. It ingests product analytics, CRM data, and business context for AI health scores, account-level analytics, and proactive alerts, and exposes a Write-Code-authenticated Events API (identify, group, track, and batched SDK event forwarding) plus JavaScript SDKs for instrumentation. Founded in 2025 (Y Combinator Spring 2026 batch), based in San Francisco and Helsinki.

Userlens publishes 1 API on the APIs.io network: Events API. Tagged areas include Company, Customer Success, Product Analytics, AI Agents, and Churn Prediction.

Userlens’ developer surface includes documentation, API reference, getting-started guide, pricing, engineering blog, authentication, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub
47.7/100 developing ▬ flat Agent 55/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyCustomer SuccessProduct AnalyticsAI AgentsChurn PredictionEvent TrackingB2B SaaSAccount Intelligence

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 47.7/100 · developing
Contract Quality 15.1 / 25
Developer Ergonomics 12.2 / 20
Commercial Clarity 10.5 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 55/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
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 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/userlens: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Userlens Events API

User identification, company grouping, and event ingestion

MCP Servers 1

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

userlens-mcp.yml

MCP SERVER

Security Posture 2

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

Userlens Authentication

http · 1 scheme

SECURITY

Userlens Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 DataModel
DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Compliance
Compliance
 Authentication
Authentication

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: userlens
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/userlens.png
name: Userlens
description: Userlens is an AI-native customer success platform for B2B SaaS that deploys LLM-powered agents to monitor every
  customer account, predict churn from actual product usage, and surface expansion opportunities. It ingests product analytics,
  CRM data, and business context for AI health scores, account-level analytics, and proactive alerts, and exposes a Write-Code-authenticated
  Events API (identify, group, track, and batched SDK event forwarding) plus JavaScript SDKs for instrumentation. Founded
  in 2025 (Y Combinator Spring 2026 batch), based in San Francisco and Helsinki.
url: https://raw.githubusercontent.com/api-evangelist/userlens/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Customer Success
- Product Analytics
- AI Agents
- Churn Prediction
- Event Tracking
- B2B SaaS
- Account Intelligence
apis:
- aid: userlens:userlens-events-api
  name: Userlens Events API
  description: User identification, company grouping, and event ingestion
  humanURL: https://userlens.gitbook.io/userlens-analytics
  baseURL: https://events.userlens.io
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/userlens-events-api-openapi.yml
  - type: Documentation
    url: https://userlens.gitbook.io/userlens-analytics
  - type: APIReference
    url: https://userlens.gitbook.io/userlens-analytics/guides/api-reference
common:
- type: DomainSecurity
  url: security/userlens-domain-security.yml
- url: https://userlens.io
  type: Website
- url: https://userlens.gitbook.io/userlens-analytics
  type: Documentation
- url: https://userlens.gitbook.io/userlens-analytics/guides/api-reference
  type: APIReference
- url: https://userlens.gitbook.io/userlens-analytics/getting-started/http-api
  type: GettingStarted
- url: https://userlens.io/pricing
  type: Pricing
- url: https://userlens.io/blog
  type: Blog
- url: https://app.userlens.io/
  type: Login
- url: https://userlens.io/terms-of-service
  type: TermsOfService
- url: https://userlens.io/privacy-policy
  type: PrivacyPolicy
- url: https://github.com/wudpecker
  type: GitHubOrganization
- url: llms/userlens-llms.txt
  type: LLMsTxt
- url: packages/userlens-packages.yml
  type: Packages
- url: packages/userlens-packages.yml
  type: SDKs
- url: well-known/userlens-well-known.yml
  type: WellKnown
- url: mcp/userlens-mcp.yml
  type: MCPServer
- url: conformance/userlens-conformance.yml
  type: Conformance
- url: https://userlens.io/llms.txt
  type: Compliance
- url: errors/userlens-problem-types.yml
  type: ErrorCatalog
- url: lifecycle/userlens-lifecycle.yml
  type: Lifecycle
- url: authentication/userlens-authentication.yml
  type: Authentication
- url: conventions/userlens-conventions.yml
  type: Conventions
- url: data-model/userlens-data-model.yml
  type: DataModel
- url: skills/_index.yml
  type: AgentSkill
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 16
  pass: local-v1