Huddlekit

Huddlekit provides a visual annotation tool that enables website feedback collection directly on live or staging sites. Teams can pin comments, screenshots, and technical details, turning feedback into actionable tasks. The platform integrates with popular tools like Linear, ClickUp, Notion, Slack, and Zapier, and offers API access for custom workflows. It targets agencies, freelancers, QA teams, and product teams seeking streamlined client communication and feedback management.

Huddlekit publishes 7 APIs on the APIs.io network, including Account API, Comments API, Events API, and 4 more. Tagged areas include Visual Annotation, Website Feedback, Developer Tools, and AI Integration.

The Huddlekit catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Huddlekit’s developer surface includes getting-started guide, API reference, documentation, support, engineering blog, pricing, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
53.5/100 developing Agent 38/100 agent ready Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0
1 published contract 1 MCP Servers
Visual AnnotationWebsite FeedbackDeveloper ToolsAI Integration

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0
Composite quality — 53.5/100 · developing
Contract Quality 13.3 / 19
Developer Ergonomics 6.1 / 15
Access Clarity 11.4 / 15
Operational Transparency 1.8 / 10
Contract Governance 2.0 / 9
Discoverability 5.0 / 8
Regulatory Posture 3.7 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 38/100 · 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 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 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 5 / 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 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/.
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/huddlekit: 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 7

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

Huddlekit API

Read and create feedback comments, change their status and subscribe to comment webhooks.

Huddlekit Account API

The API key and its workspace.

Huddlekit Comments API

Read, create and change the status of comments.

Huddlekit Events API

Sample event payloads.

Huddlekit Projects API

Website projects, web apps and documents that comments are attached to.

Huddlekit Webhook events API

Requests Huddlekit sends to subscribed URLs.

Huddlekit Webhook subscriptions API

Subscribe URLs to comment events (REST hooks).

Scroll for all 7

MCP Servers 1

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

Huddlekit MCP Server

Remote MCP server at mcp.huddlekit.com requiring OAuth.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Huddlekit Plans Pricing

3 plans

PLANS

Event Specifications 1

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

Huddlekit Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Huddlekit Context

32 classes · 57 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Huddlekit API Rules

19 rules · 17 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

ApiKeyInfo

5 properties

JSON SCHEMA

CreateCommentRequest

10 properties

JSON SCHEMA

CreateWebhookSubscriptionRequest

5 properties

JSON SCHEMA

ListCommentsResponse

2 properties

JSON SCHEMA

ListProjectsResponse

1 properties

JSON SCHEMA

WebhookSubscriptionCreated

6 properties

JSON SCHEMA

Security Posture 2

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

Huddlekit Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Huddlekit Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

APIReference
APIReference
 Documentation
Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 WellKnown
WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 JSONLD
JSONLD
 Vocabulary
Vocabulary
 Conformance
Conformance
 Webhooks
Webhooks
 DataModel
DataModel
 ErrorCatalog
ErrorCatalog

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

Postman
Postman

Access & Security 4

Authentication, authorization, and security posture

Security
Security
 SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 3

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap
 Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: huddlekit
name: Huddlekit
image: https://huddlekit.com/og-image.png
description: Huddlekit provides a visual annotation tool that enables website feedback collection directly on live or staging
  sites. Teams can pin comments, screenshots, and technical details, turning feedback into actionable tasks. The platform
  integrates with popular tools like Linear, ClickUp, Notion, Slack, and Zapier, and offers API access for custom workflows.
  It targets agencies, freelancers, QA teams, and product teams seeking streamlined client communication and feedback management.
url: https://raw.githubusercontent.com/api-evangelist/huddlekit/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-28 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-09-28'
modified: '2026-09-28'
tags:
- Visual Annotation
- Website Feedback
- Developer Tools
- AI Integration
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/huddlekit-capability-edges.yml
  name: Huddlekit Business Capability Map
- type: Spectral
  url: rules/huddlekit-rules.yml
- type: JSONLD
  url: json-ld/huddlekit-context.jsonld
- type: Vocabulary
  url: vocabulary/huddlekit-vocabulary.yml
- type: Conformance
  url: conformance/huddlekit-conformance.yml
- type: GettingStarted
  url: https://huddlekit.com/support/integrations
- type: Plans
  url: plans/huddlekit-plans-pricing.yml
- type: Webhooks
  url: asyncapi/huddlekit-webhooks.yml
- type: DataModel
  url: data-model/huddlekit-data-model.yml
- type: Security
  url: https://huddlekit.com/privacy
- type: ErrorCatalog
  url: errors/huddlekit-problem-types.yml
- type: LLMsTxt
  url: llms/huddlekit-llms.txt
- type: MCPServer
  url: mcp/huddlekit-mcp.yml
- type: SecurityTxt
  url: well-known/huddlekit-security.txt
- type: WellKnown
  url: well-known/huddlekit-well-known.yml
- type: Hosts
  url: hosts/huddlekit-hosts.yml
- type: Vendors
  url: vendors/huddlekit-vendors.yml
- type: APIReference
  url: https://huddlekit.com/llms.txt
- type: VulnerabilityDisclosure
  url: security/huddlekit-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/huddlekit-domain-security.yml
- type: Website
  url: https://huddlekit.com
- type: Documentation
  url: https://huddlekit.com/integrations/api
- type: Support
  url: https://huddlekit.com/support
- type: Blog
  url: https://huddlekit.com/blog
- type: Pricing
  url: https://huddlekit.com/pricing
- type: SignUp
  url: https://huddlekit.com
- type: TermsOfService
  url: https://huddlekit.com/terms
- type: PrivacyPolicy
  url: https://huddlekit.com/privacy
- type: Postman
  url: https://www.postman.com/huddlekit/workspace
apis:
- name: Huddlekit API
  description: Read and create feedback comments, change their status and subscribe to comment webhooks.
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  aid: huddlekit:huddlekit-api
- aid: huddlekit:huddlekit-account-api
  name: Huddlekit Account API
  description: The API key and its workspace.
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/huddlekit-account-api-openapi.yml
  - type: JSONSchema
    url: json-schema/huddlekit-create-comment-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-webhook-subscription-created-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-create-webhook-subscription-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-api-key-info-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-comments-response-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-projects-response-schema.json
- aid: huddlekit:huddlekit-comments-api
  name: Huddlekit Comments API
  description: Read, create and change the status of comments.
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  tags:
  - Comments
  properties:
  - type: OpenAPI
    url: openapi/huddlekit-comments-api-openapi.yml
  - type: JSONSchema
    url: json-schema/huddlekit-create-comment-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-webhook-subscription-created-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-create-webhook-subscription-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-api-key-info-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-comments-response-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-projects-response-schema.json
- aid: huddlekit:huddlekit-events-api
  name: Huddlekit Events API
  description: Sample event payloads.
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/huddlekit-events-api-openapi.yml
  - type: JSONSchema
    url: json-schema/huddlekit-create-comment-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-webhook-subscription-created-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-create-webhook-subscription-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-api-key-info-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-comments-response-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-projects-response-schema.json
- aid: huddlekit:huddlekit-projects-api
  name: Huddlekit Projects API
  description: Website projects, web apps and documents that comments are attached to.
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/huddlekit-projects-api-openapi.yml
  - type: JSONSchema
    url: json-schema/huddlekit-create-comment-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-webhook-subscription-created-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-create-webhook-subscription-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-api-key-info-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-comments-response-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-projects-response-schema.json
- aid: huddlekit:huddlekit-webhook-events-api
  name: Huddlekit Webhook events API
  description: Requests Huddlekit sends to subscribed URLs.
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  tags:
  - Webhook Events
  tags_raw:
  - Webhook events
  properties:
  - type: OpenAPI
    url: openapi/huddlekit-webhook-events-api-openapi.yml
  - type: JSONSchema
    url: json-schema/huddlekit-create-comment-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-webhook-subscription-created-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-create-webhook-subscription-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-api-key-info-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-comments-response-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-projects-response-schema.json
- aid: huddlekit:huddlekit-webhook-subscriptions-api
  name: Huddlekit Webhook subscriptions API
  description: Subscribe URLs to comment events (REST hooks).
  humanURL: https://huddlekit.com/integrations/api
  baseURL: https://app.huddlekit.com/api/v1
  tags:
  - Webhook Subscriptions
  tags_raw:
  - Webhook subscriptions
  properties:
  - type: OpenAPI
    url: openapi/huddlekit-webhook-subscriptions-api-openapi.yml
  - type: JSONSchema
    url: json-schema/huddlekit-create-comment-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-webhook-subscription-created-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-create-webhook-subscription-request-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-api-key-info-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-comments-response-schema.json
  - type: JSONSchema
    url: json-schema/huddlekit-list-projects-response-schema.json
x-submission-notes: Visual website feedback (Everace AB, Stockholm). OpenAPI https://huddlekit.com/openapi.json (base https://app.huddlekit.com/api/v1);
  api-catalog; llms.txt; remote MCP (OAuth) https://mcp.huddlekit.com/mcp, MCP Registry com.huddlekit/huddlekit
x-submission-probe: root 200, invented 404, OpenAPI 3.1 (7 paths), api-catalog linkset 200, llms.txt 200, MCP 401 JSON (OAuth)
x-submitted-by: hello@huddlekit.com (apis.io/add, 2026-09-28)
x-enrichment:
  date: '2026-09-28'
  status: enriched
  artifacts_added: 19
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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