Hull website screenshot

Hull

Hull is a real-time Customer Data Platform (CDP) that unifies customer data from every source — web, product, CRM, marketing and support tools, databases and files — into a single User and Account profile using claim-based identity resolution. It ingests, computes and enriches data through a data-lifecycle pipeline (Ingest / Compute / Notify), organizes people and companies into Segments, and syncs the resulting profiles out to more than fifty tools via Connectors ("ships"). Developers integrate through a flat HTTP API at https://{organization}.hullapp.io/api/v1 covering Users, Accounts, Events, Segments, Status and Bulk operations, plus first-party Node, browser, PHP and Ruby client libraries and an outgoing/incoming webhook surface. Hull is now part of MessageBird (Bird) and is no longer accepting new customers.

Hull publishes 1 API on the APIs.io network. Tagged areas include Company, Customer Data Platform, CDP, Identity Resolution, and Data Integration.

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

Hull’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, authentication, and 16 more developer resources.

35.5/100 thin ▬ flat Agent 35/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyCustomer Data PlatformCDPIdentity ResolutionData IntegrationCustomer DataMarketingReal-timeiPaaSAnalytics

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 35.5/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 12.6 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 3.8 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 35/100 · agent aware
Machine-Readable Contract 0 / 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 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 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/hull: 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.

Hull HTTP API

Flat REST API for Hull's Customer Data Platform, addressing objects by ID under the /api/v1 prefix on a per-organization hullapp.io subdomain. Covers Users, Accounts, Events, Se...

MCP Servers 1

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

hull-mcp.yml

MCP SERVER

Event Specifications 1

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

Hull Webhooks

ASYNCAPI

Security Posture 2

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

Hull Authentication

apiKey/http · 3 schemes

SECURITY

Hull Domain Security

DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: hull
name: Hull
description: Hull is a real-time Customer Data Platform (CDP) that unifies customer data from every source — web, product,
  CRM, marketing and support tools, databases and files — into a single User and Account profile using claim-based identity
  resolution. It ingests, computes and enriches data through a data-lifecycle pipeline (Ingest / Compute / Notify), organizes
  people and companies into Segments, and syncs the resulting profiles out to more than fifty tools via Connectors ("ships").
  Developers integrate through a flat HTTP API at https://{organization}.hullapp.io/api/v1 covering Users, Accounts, Events,
  Segments, Status and Bulk operations, plus first-party Node, browser, PHP and Ruby client libraries and an outgoing/incoming
  webhook surface. Hull is now part of MessageBird (Bird) and is no longer accepting new customers.
url: https://raw.githubusercontent.com/api-evangelist/hull/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- point-nine
x-tier: stub
x-tier-reason: portfolio-lead
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
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://www.hull.io/assets/images/logo/logo_dark@2x.png
tags:
- Company
- Customer Data Platform
- CDP
- Identity Resolution
- Data Integration
- Customer Data
- Marketing
- Real-time
- iPaaS
- Analytics
apis:
- name: Hull HTTP API
  description: Flat REST API for Hull's Customer Data Platform, addressing objects by ID under the /api/v1 prefix on a per-organization
    hullapp.io subdomain. Covers Users, Accounts, Events, Segments, organization/connector Status and Bulk operations (Firehose,
    Import/Extract).
  humanURL: https://www.hull.io/docs/reference/http_api/introduction/
  baseURL: https://hullapp.io/api/v1
  properties:
  - type: Documentation
    url: https://www.hull.io/docs/reference/http_api/
  - type: Authentication
    url: authentication/hull-authentication.yml
  - type: Conventions
    url: conventions/hull-conventions.yml
  - type: ErrorCatalog
    url: errors/hull-error-codes.yml
  - type: DataModel
    url: data-model/hull-data-model.yml
  - type: Webhooks
    url: asyncapi/hull-webhooks.yml
  - type: MCPServer
    url: mcp/hull-mcp.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.hull.io
- type: DeveloperPortal
  url: https://www.hull.io/docs/
- type: Documentation
  url: https://www.hull.io/docs/
- type: APIReference
  url: https://www.hull.io/docs/reference/http_api/
- type: GettingStarted
  url: https://www.hull.io/docs/guides/
- type: Blog
  url: https://www.hull.io/blog/
- type: Pricing
  url: https://www.hull.io/pricing/
- type: PrivacyPolicy
  url: https://www.hull.io/pp/
- type: GitHubOrganization
  url: https://github.com/hull
- type: Authentication
  url: authentication/hull-authentication.yml
- type: Conventions
  url: conventions/hull-conventions.yml
- type: ErrorCatalog
  url: errors/hull-error-codes.yml
- type: Lifecycle
  url: lifecycle/hull-lifecycle.yml
- type: StatusPage
  url: https://status.hull.io/
- type: Packages
  url: packages/hull-packages.yml
- type: SDKs
  url: packages/hull-packages.yml
- type: DataModel
  url: data-model/hull-data-model.yml
- type: Webhooks
  url: asyncapi/hull-webhooks.yml
- type: MCPServer
  url: mcp/hull-mcp.yml
- type: Conformance
  url: conformance/hull-conformance.yml
- type: LLMsTxt
  url: llms/hull-llms.txt
- type: DomainSecurity
  url: security/hull-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence