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 3 API contracts indexed on the APIs.io network, including Branding API, Discovery API, and 1 more. Tagged areas include Company, Marketing, Artificial Intelligence, AI Agents, and Marketing Automation.

The CharacterQuilt catalog on APIs.io includes 1 Spectral governance ruleset.

CharacterQuilt’s developer surface includes engineering blog, pricing, signup flow, support, authentication, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.1/100 developing ▬ flat Agent 34/100 agent ready Front door AI 5/6 prominent Heartbeat 61/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaidOpen

1 published contract 1 MCP Servers 1 Agent Skills

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

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Marketing Management

BC-400

Branding

GET /branding/{slug}.json GET /branding/{slug}

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 45.1/100 · developing

Contract Quality 9.8 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 13.0 / 17

Operational Transparency 0.3 / 11

Contract Governance 3.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 4.8 / 15

Agent readiness — 34/100 · agent ready

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 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 26.2 — up to +14.8 composite points
Contract Quality scores 45.9 — up to +13.5 composite points
Operational Transparency scores 2.6 — up to +12.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/characterquilt/apis.yml: open an issue on github.com/api-evangelist/characterquilt to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	undeclared	-	-	2
Accelerator Portfolios (Y Combinator, 500 Global, Antler participation)	undeclared	-	-	2

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Agent Skills

measured — observed by APIs.io (published)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

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 2

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

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

Remote MCP server over HTTP.

MCP SERVER

Agent Skills 1

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

running-dinner-campaigns

AGENT SKILL

CharacterQuilt API pricing

Prices published by CharacterQuilt, read 2026-10-28 from www.characterquilt.com/pricing.

Plan	Price
Campaigns	Pricing is custom. Includes: Design Agent, Data Agent, deployment agents, dedicated onboarding & support
AI Marketing Team	Pricing is custom. Includes: Everything in Campaigns, unlimited campaigns, video & motion creative, brand governance engine
Enterprise	Talk to us → Includes: Everything in AI Marketing Team, custom integrations, SSO & compliance controls

Plan details, limits and sources →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

CharacterQuilt

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Characterquilt Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

CharacterQuilt API Rules

43 rules · 41 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 2

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Characterquilt Branding Api Overlay

5 actions · security · characterquilt-branding-api-openapi.yml

DERIVED

Characterquilt Discovery Api Overlay

4 actions · security · characterquilt-discovery-api-openapi.yml

DERIVED

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

5 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

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

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: paid
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Paid · Open access
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  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
  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
  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: CapabilityMap
  url: capabilities/characterquilt-capability-edges.yml
  name: CharacterQuilt Business Capability Map
- 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.'

CharacterQuilt API — frequently asked questions

Does CharacterQuilt have an API?

Yes. APIs.io lists 3 APIs from CharacterQuilt, including CharacterQuilt Branding API, CharacterQuilt Discovery API and CharacterQuilt MCP Server.

Is there an OpenAPI specification for the CharacterQuilt API?

Yes. APIs.io indexes 2 OpenAPI specifications for CharacterQuilt, each linked for download from this page.

How do I authenticate with the CharacterQuilt API?

CharacterQuilt uses bearer-token authentication (0 schemes). The details are profiled on APIs.io as Characterquilt Authentication.

How much does the CharacterQuilt API cost?

CharacterQuilt publishes its prices; its Campaigns plan is Pricing is custom. as of 2026-10-28. APIs.io lists 3 pricing plans for CharacterQuilt, with each plan's price, limits and inclusions under Pricing on this page.

Does CharacterQuilt have an MCP server?

Yes. APIs.io lists 1 MCP server for CharacterQuilt: Remote MCP server over HTTP.

Is the CharacterQuilt API ready for AI agents?

CharacterQuilt has a Kin Score of 45.1 out of 100 (developing) and an Agent Readiness score of 34.1 (agent-ready), scored by API Evangelist on 2026-11-06.

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