Lucent

Lucent is an AI product manager for session replay: it watches user session recordings continuously and automatically detects bugs and UX issues, surfacing them as prioritized, AI-verified issues with reproduction steps, console logs, network activity, and affected-user counts. It ingests rrweb session batches from a lightweight browser SDK (plus React Native and Flutter), imports replays from providers such as PostHog and Sentry, and exposes a REST Data API to read issues, signals, and insights and to update issue status, webhooks for issue events, and a hosted Model Context Protocol (MCP) server so agents like Claude and Cursor can query Lucent data directly. Founded 2025, Y Combinator Winter 2026 batch.

Lucent publishes 4 APIs on the APIs.io network, including Insights API, Issues API, Sdk API, and 1 more. Tagged areas include Company, Session Replay, Product Analytics, Bug Detection, and Observability.

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

Lucent’s developer surface includes authentication, CLI, documentation, API reference, getting-started guide, engineering blog, pricing, and 29 more developer resources.

🌐 Visit website 📡 Source on GitHub

50.4/100 developing ▬ flat Agent 61/100 agent native saas Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0

AccessSelf serve

1 APIs 1 MCP Servers

Company Session Replay Product Analytics Bug Detection Observability Artificial Intelligence Developer Tools MCP Webhook

Kin Score

Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0

Composite quality — 50.4/100 · developing

Contract Quality 15.7 / 25

Developer Ergonomics 14.6 / 20

Access Clarity 8.9 / 20

Operational Transparency 1.4 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 61/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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/lucent: 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 4

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

MCP Servers 1

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

Scopes 1

OAuth scopes governing access to this provider's APIs.

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 3

Reference material describing how the API behaves

AsyncAPI

AsyncAPI

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 7

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

WellKnown

LLMsTxt

AgentSkill

AgentSkill

AgentSkill

Scroll for all 7

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Webhooks

Arazzo

Scroll for all 8

Build 4

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

Support

Support

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

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: lucent
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: 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/lucent.png
name: Lucent
description: 'Lucent is an AI product manager for session replay: it watches user session recordings continuously and automatically
  detects bugs and UX issues, surfacing them as prioritized, AI-verified issues with reproduction steps, console logs, network
  activity, and affected-user counts. It ingests rrweb session batches from a lightweight browser SDK (plus React Native and
  Flutter), imports replays from providers such as PostHog and Sentry, and exposes a REST Data API to read issues, signals,
  and insights and to update issue status, webhooks for issue events, and a hosted Model Context Protocol (MCP) server so
  agents like Claude and Cursor can query Lucent data directly. Founded 2025, Y Combinator Winter 2026 batch.'
url: https://raw.githubusercontent.com/api-evangelist/lucent/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Session Replay
- Product Analytics
- Bug Detection
- Observability
- Artificial Intelligence
- Developer Tools
- MCP
- Webhook
tags_raw:
- Company
- Session Replay
- Product Analytics
- Bug Detection
- Observability
- Artificial Intelligence
- Developer Tools
- MCP
- Webhooks
apis:
- aid: lucent:lucent-insights-api
  name: Lucent Insights API
  description: The Insights API from Lucent — 1 operation(s) for insights.
  humanURL: https://docs.lucenthq.com/api-reference/introduction
  baseURL: https://app.lucenthq.com
  tags:
  - Insights
  properties:
  - type: OpenAPI
    url: openapi/lucent-insights-api-openapi.yml
- aid: lucent:lucent-issues-api
  name: Lucent Issues API
  description: The Issues API from Lucent — 2 operation(s) for issues.
  humanURL: https://docs.lucenthq.com/api-reference/introduction
  baseURL: https://app.lucenthq.com
  tags:
  - Issues
  properties:
  - type: OpenAPI
    url: openapi/lucent-issues-api-openapi.yml
- aid: lucent:lucent-sdk-api
  name: Lucent Sdk API
  description: The Sdk API from Lucent — 1 operation(s) for sdk.
  humanURL: https://docs.lucenthq.com/api-reference/introduction
  baseURL: https://app.lucenthq.com
  tags:
  - SDK
  tags_raw:
  - Sdk
  properties:
  - type: OpenAPI
    url: openapi/lucent-sdk-api-openapi.yml
- aid: lucent:lucent-signals-api
  name: Lucent Signals API
  description: The Signals API from Lucent — 1 operation(s) for signals.
  humanURL: https://docs.lucenthq.com/api-reference/introduction
  baseURL: https://app.lucenthq.com
  tags:
  - Signals
  properties:
  - type: OpenAPI
    url: openapi/lucent-signals-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/lucent-agentic-access.yml
- type: DomainSecurity
  url: security/lucent-domain-security.yml
- type: Authentication
  url: authentication/lucent-authentication.yml
- type: OAuthScopes
  url: scopes/lucent-scopes.yml
- type: MCPServer
  url: mcp/lucent-mcp.yml
- type: Packages
  url: packages/lucent-packages.yml
- type: SDKs
  url: packages/lucent-packages.yml
- type: CLI
  url: cli/lucent-cli.yml
- type: WellKnown
  url: well-known/lucent-well-known.yml
- type: LLMsTxt
  url: llms/lucent-llms.txt
- type: Conventions
  url: conventions/lucent-conventions.yml
- type: Idempotency
  url: conventions/lucent-conventions.yml
- type: ErrorCatalog
  url: errors/lucent-problem-types.yml
- type: Lifecycle
  url: lifecycle/lucent-lifecycle.yml
- type: Conformance
  url: conformance/lucent-conformance.yml
- type: DataModel
  url: data-model/lucent-data-model.yml
- type: AsyncAPI
  url: asyncapi/lucent-webhooks-asyncapi.yml
- type: Webhooks
  url: asyncapi/lucent-webhooks-asyncapi.yml
- type: Overlay
  url: overlays/lucent-openapi-overlay.yaml
- type: Arazzo
  name: Triage and resolve an issue
  url: arazzo/lucent-triage-and-resolve.yml
- type: AgentSkill
  name: Triage Lucent issues
  url: skills/lucent-triage-issues.md
- type: AgentSkill
  name: Monitor Lucent signals and insights
  url: skills/lucent-monitor-signals-insights.md
- type: AgentSkill
  name: Ingest a Lucent session replay
  url: skills/lucent-ingest-replay.md
- type: Website
  url: https://lucenthq.com
- type: DeveloperPortal
  url: https://docs.lucenthq.com
- type: Documentation
  url: https://docs.lucenthq.com
- type: APIReference
  url: https://docs.lucenthq.com/api-reference/introduction
- type: GettingStarted
  url: https://docs.lucenthq.com/quickstart
- type: Blog
  url: https://lucenthq.com/blog
- type: Pricing
  url: https://lucenthq.com/pricing
- type: SignUp
  url: https://app.lucenthq.com/sign-up
- type: Login
  url: https://app.lucenthq.com
- type: TermsOfService
  url: https://lucenthq.com/terms
- type: PrivacyPolicy
  url: https://lucenthq.com/privacy
- type: Support
  url: https://lucenthq.com/contact
- type: GitHubOrganization
  url: https://github.com/lucent-ai
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 25
  pass: local-v1

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Lucent

APIs 4

Open Collections 5

Arazzo Workflows 1

MCP Servers 1

Event Specifications 1

Security Posture 2

Scopes 1

Agentic Access 1

Get Started 4

Documentation 3

Agent Surfaces 7

Design & Contract 8

Build 4

Access & Security 3

Operate 1

Commercial 3

Company 2

Other 1

Source (apis.yml)

MCP server

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