Moonchild

Moonchild AI provides a chat‑based design assistant that transforms product requirement documents into production‑ready UI screens. By leveraging AI, it helps product managers, designers, and developers accelerate design workflows, generate prototypes, and export code directly from design systems. The platform offers a web interface, Discord community, and studio tools for collaborative design, aiming to close the gap between product vision and implementation without scaling design teams.

Moonchild is listed with 1 API on the APIs.io network. Tagged areas include AI, Design, Product, Collaboration, and Automation.

Moonchild’s developer surface includes pricing, engineering blog, documentation, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

23.3/100 emerging Agent 0/100 human only Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

AIDesign Product Collaboration Automation Platform

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 23.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 10.7 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 4.6 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

13 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 21.4 — up to +15.7 composite points
Contract Governance scores 0.0 — up to +12.0 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/moonchild/apis.yml: open an issue on github.com/api-evangelist/moonchild 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 →

APIs 1

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

Moonchild API

Moonchild AI developer platform for MCP integration and design automation.

Pricing Plans 1

Published pricing tiers and plan structures.

Moonchild Plans Pricing

4 plans

PLANS

Security Posture 1

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

Moonchild Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Access & Security 3

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: moonchild
name: Moonchild
description: Moonchild AI provides a chat‑based design assistant that transforms product requirement documents into production‑ready
  UI screens. By leveraging AI, it helps product managers, designers, and developers accelerate design workflows, generate
  prototypes, and export code directly from design systems. The platform offers a web interface, Discord community, and studio
  tools for collaborative design, aiming to close the gap between product vision and implementation without scaling design
  teams.
url: https://artifacts.apis.io/moonchild/apis.yml
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- AI
- Design
- Product
- Collaboration
- Automation
- Platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/moonchild-plans-pricing.yml
- type: LLMsTxt
  url: llms/moonchild-llms.txt
- type: SecurityTxt
  url: well-known/moonchild-www-security.txt
- type: SecurityTxt
  url: well-known/moonchild-help-security.txt
- type: WellKnown
  url: well-known/moonchild-well-known.yml
- type: Hosts
  url: hosts/moonchild-hosts.yml
- type: Vendors
  url: vendors/moonchild-vendors.yml
- type: TermsOfService
  url: https://moonchild.ai/terms_of_service.html
- type: PrivacyPolicy
  url: https://moonchild.ai/privacy_policy.html
- type: Pricing
  url: https://moonchild.ai/pricing
- type: DeveloperPortal
  url: https://moonchild.ai/developers
- type: Blog
  url: https://moonchild.ai/blog
- type: Documentation
  url: https://help.moonchild.ai/
- type: DomainSecurity
  url: security/moonchild-domain-security.yml
- type: Website
  url: https://www.moonchild.ai
apis:
- name: Moonchild API
  description: Moonchild AI developer platform for MCP integration and design automation.
  humanURL: https://moonchild.ai/developers
  aid: moonchild:moonchild-api
x-backed-by:
- heavybit
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: No OpenAPI, AsyncAPI, GraphQL, or other machine‑readable contract was found on the provider's API host.
  evidence:
  - url: https://api.moonchild.ai/openapi.json
    status: unreachable
  checked: '2026-10-29'
x-enrichment:
  date: '2026-10-29'
  status: enriched
  artifacts_added: 15
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Moonchild API — frequently asked questions

Does Moonchild have an API?

Yes. APIs.io lists 1 API from Moonchild, including Moonchild API.

How much does the Moonchild API cost?

APIs.io lists 4 pricing plans for Moonchild, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Moonchild API ready for AI agents?

Moonchild has a Kin Score of 23.3 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-10-31.

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MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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