CharacterQuilt

CharacterQuilt is an AI-native marketing infrastructure company (Y Combinator Spring 2026) building computer-use agents that design and deploy enterprise marketing campaigns end-to-end. Marketing teams submit a brief and CharacterQuilt's agents handle audience segmentation, on-brand creative generation, brand validation, and direct deployment into existing tools such as HubSpot, Marketo, WordPress, and LinkedIn — collapsing work that once took multiple agencies, ten tools, and six weeks into roughly an hour. Alongside the product, CharacterQuilt publishes a public, machine-readable brand-profiles data surface at /branding/.json: colors, typography, logos, components, and personality extracted from thousands of companies' live websites, intended for agents, designers, and AI tools. Founded by Bhairav Mehta (CEO) and Clint Burgess and based in San Francisco.

CharacterQuilt publishes 2 APIs on the APIs.io network: Branding API and Discovery API. Tagged areas include Company, Marketing, Artificial Intelligence, AI Agents, and Marketing Automation.

CharacterQuilt’s developer surface includes engineering blog, pricing, signup flow, support, authentication, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.4/100 developing ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs 1 MCP Servers 1 Agent Skills

Company Marketing Artificial Intelligence AI Agents Marketing Automation Campaign ManagementBrand IdentityComputer Use Agents Y Combinator Data MCP

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 43.4/100 · developing

Contract Quality 12.8 / 25

Developer Ergonomics 5.2 / 20

Access Clarity 15.3 / 20

Operational Transparency 0.3 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 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 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/characterquilt: 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 3

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

CharacterQuilt Branding API

The Branding API from CharacterQuilt — 2 operation(s) for branding.

CharacterQuilt Discovery API

The Discovery API from CharacterQuilt — 1 operation(s) for discovery.

CharacterQuilt MCP Server

CharacterQuilt's hosted Model Context Protocol server, the agent-facing surface of its marketing agent runtime. Live and OAuth-protected at https://mcp.characterquilt.com/api/mc...

Open Collections 3

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

API Collection

OPEN COLLECTION

CharacterQuilt Brand Profiles Branding API

OPEN COLLECTION

CharacterQuilt Brand Profiles Branding Discovery API

OPEN COLLECTION

MCP Servers 1

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

CharacterQuilt MCP Server

MCP SERVER

Agent Skills 1

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

running-dinner-campaigns

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Characterquilt Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Characterquilt Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Characterquilt Authentication

0 schemes

SECURITY

Characterquilt Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Characterquilt Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Conformance

Conformance

Lifecycle

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Source (apis.yml)

aid: characterquilt
name: CharacterQuilt
description: 'CharacterQuilt is an AI-native marketing infrastructure company (Y Combinator Spring 2026) building computer-use
  agents that design and deploy enterprise marketing campaigns end-to-end. Marketing teams submit a brief and CharacterQuilt''s
  agents handle audience segmentation, on-brand creative generation, brand validation, and direct deployment into existing
  tools such as HubSpot, Marketo, WordPress, and LinkedIn — collapsing work that once took multiple agencies, ten tools, and
  six weeks into roughly an hour. Alongside the product, CharacterQuilt publishes a public, machine-readable brand-profiles
  data surface at /branding/<slug>.json: colors, typography, logos, components, and personality extracted from thousands of
  companies'' live websites, intended for agents, designers, and AI tools. Founded by Bhairav Mehta (CEO) and Clint Burgess
  and based in San Francisco.'
url: https://raw.githubusercontent.com/api-evangelist/characterquilt/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
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: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-13'
image: https://cdn.prod.website-files.com/678e847c65f5a9cc363424b0/68d6b1531e1346581672508b_Open%20Graph%20Image.jpg
tags:
- Company
- Marketing
- Artificial Intelligence
- AI Agents
- Marketing Automation
- Campaign Management
- Brand Identity
- Computer Use Agents
- Y Combinator
- Data
- MCP
apis:
- aid: characterquilt:characterquilt-branding-api
  name: CharacterQuilt Branding API
  description: The Branding API from CharacterQuilt — 2 operation(s) for branding.
  humanURL: https://www.characterquilt.com/llms.txt
  baseURL: https://www.characterquilt.com
  tags:
  - Branding
  properties:
  - type: OpenAPI
    url: openapi/characterquilt-branding-api-openapi.yml
  - type: LLMsTxt
    url: llms/characterquilt-llms.txt
  - type: ErrorCatalog
    url: errors/characterquilt-problem-types.yml
  - type: DataModel
    url: data-model/characterquilt-data-model.yml
  - type: Overlay
    url: overlays/characterquilt-branding-api-overlay.yaml
- aid: characterquilt:characterquilt-discovery-api
  name: CharacterQuilt Discovery API
  description: The Discovery API from CharacterQuilt — 1 operation(s) for discovery.
  humanURL: https://www.characterquilt.com/llms.txt
  baseURL: https://www.characterquilt.com
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/characterquilt-discovery-api-openapi.yml
  - type: LLMsTxt
    url: llms/characterquilt-llms.txt
  - type: ErrorCatalog
    url: errors/characterquilt-problem-types.yml
  - type: DataModel
    url: data-model/characterquilt-data-model.yml
  - type: Overlay
    url: overlays/characterquilt-discovery-api-overlay.yaml
- aid: characterquilt:characterquilt-mcp-server
  name: CharacterQuilt MCP Server
  description: 'CharacterQuilt''s hosted Model Context Protocol server, the agent-facing surface of its marketing agent runtime.
    Live and OAuth-protected at https://mcp.characterquilt.com/api/mcp: an anonymous request returns HTTP 401 with a spec-correct
    RFC 9728 challenge pointing at published protected-resource metadata, which declares bearer-header auth and five scopes
    — read:design_brain, write:generated_artifacts, publish:public_file, read:agent_work and write:agent_work. The tool list
    is auth-gated, so no tool names are recorded. CharacterQuilt publishes no documentation for this surface; it was found
    by DNS enumeration and confirmed by the server''s own metadata and by the company''s engineering job posting, which names
    "the API, CLI, and MCP surfaces around our agent runtime".'
  humanURL: https://www.characterquilt.com
  baseURL: https://mcp.characterquilt.com
  tags:
  - MCP
  - AI Agents
  - Marketing Automation
  properties:
  - type: MCPServer
    url: mcp/characterquilt-mcp.yml
  - type: ToolCrosswalk
    url: mcp/characterquilt-tool-crosswalk.yml
  - type: OAuthScopes
    url: scopes/characterquilt-scopes.yml
  - type: Authentication
    url: authentication/characterquilt-authentication.yml
common:
- type: MCPServer
  url: mcp/characterquilt-mcp.yml
- type: Website
  url: https://www.characterquilt.com
- type: LLMsTxt
  url: https://www.characterquilt.com/llms.txt
- type: Blog
  url: https://www.characterquilt.com/blog
- type: Pricing
  url: https://www.characterquilt.com/pricing
- type: SignUp
  url: https://cal.com/clintvburgess/website-demo-request
- type: TermsOfService
  url: https://www.characterquilt.com/terms
- type: PrivacyPolicy
  url: https://www.characterquilt.com/privacy
- type: Support
  url: mailto:hello@characterquilt.com
- type: DomainSecurity
  url: security/characterquilt-domain-security.yml
- type: WellKnown
  url: well-known/characterquilt-well-known.yml
- type: Authentication
  url: authentication/characterquilt-authentication.yml
- type: OAuthScopes
  url: scopes/characterquilt-scopes.yml
- type: ToolCrosswalk
  url: mcp/characterquilt-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/characterquilt-conventions.yml
- type: Conformance
  url: conformance/characterquilt-conformance.yml
- type: Lifecycle
  url: lifecycle/characterquilt-lifecycle.yml
- type: RateLimits
  url: rate-limits/characterquilt-rate-limits.yml
- type: Plans
  url: plans/characterquilt-plans-pricing.yml
- type: Packages
  url: packages/characterquilt-packages.yml
- type: GitHubOrganization
  url: https://github.com/characterquilt
- type: LinkedIn
  url: https://www.linkedin.com/company/characterquilt/
- type: Twitter
  url: https://twitter.com/characterquilt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 19
  pass: local-v1
  note: 'Round 2. Found a live hosted MCP server at https://mcp.characterquilt.com/api/mcp that round 1 missed — OAuth-protected,
    with real RFC 9728 protected-resource metadata and five published scopes — plus a provider-published Agent Skill in the
    company''s GitHub org. Still no OpenAPI anywhere: all spec paths 404 on both hosts, and api./app./docs. subdomains do
    not resolve.'

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