Moderne

Moderne is a deterministic, large-scale code transformation and mass-remediation platform built on the open-source OpenRewrite framework and its Lossless Semantic Trees (LST) — compiler-accurate, format-preserving models of source code. Moderne sequences codebases (from one repository to 100,000) into type-attributed LSTs and runs 10,000+ deterministic recipes across 40+ domains and 10+ languages to drive automated refactoring, framework and dependency migrations, security patching, and code governance with verifiable, regression-free results. The platform exposes a GraphQL API for recipe execution and commits, a first-party CLI (mod), local and hosted Model Context Protocol (MCP) servers plus bundled Agent Skills for AI coding agents, and Moddy, a multi-repo AI agent. Delivered as the Moderne Platform (SaaS) and Moderne DX (air-gapped, on-premises). Backed by True Ventures.

Moderne is listed with 1 API on the APIs.io network. Tagged areas include Company, Developer Tools, Code Transformation, Automated Refactoring, and Code Migration.

Moderne’s developer surface includes engineering blog, documentation, API reference, getting-started guide, authentication, support, signup flow, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.7/100 thin ▬ flat Agent 10/100 agent aware Front door AI 4/6 moderate Heartbeat 84/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 1 MCP Servers 4 Agent Skills

Company Developer ToolsCode TransformationAutomated RefactoringCode MigrationSecurity PatchingOpenRewriteStatic AnalysisCode GovernanceDevOps GraphQL AI Agents MCP

Kin Score

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

Composite quality — 36.7/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 13.4 / 17

Access Clarity 4.9 / 17

Operational Transparency 2.9 / 11

Contract Governance 1.9 / 10

Discoverability 6.4 / 9

Regulatory Posture 4.4 / 15

Agent readiness — 10/100 · agent aware

Machine-Readable Contract 0 / 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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 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

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 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 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
Access Clarity scores 28.9 — up to +14.2 composite points
Contract Governance scores 18.2 — up to +9.8 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/moderne/apis.yml: open an issue on github.com/api-evangelist/moderne 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 →

Standards implemented 3

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.

GraphQL

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

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

APIs 1

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

Moderne GraphQL API

The Moderne Platform GraphQL API for programmatically executing OpenRewrite recipes across organizations of repositories, polling recipe-run state, retrieving results and recipe...

MCP Servers 1

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

Moderne MCP Server

Remote MCP server at api.app.moderne.io.

MCP SERVER

Agent Skills 4

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

analyze-impact

AGENT SKILL

create-organization

AGENT SKILL

create-recipe

AGENT SKILL

run-recipe

AGENT SKILL

Security Posture 2

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

Moderne Authentication

http/oauth2/openIdConnect/saml · 2 schemes

SECURITY

Moderne Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

DataModel

Lifecycle

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

CLI

Packages

SDKs

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

Compliance

Compliance

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

Deprecation

Deprecation

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

Blog

BlogRSS

Website

Blog

Source (apis.yml)

aid: moderne
name: Moderne
description: Moderne is a deterministic, large-scale code transformation and mass-remediation platform built on the open-source
  OpenRewrite framework and its Lossless Semantic Trees (LST) — compiler-accurate, format-preserving models of source code.
  Moderne sequences codebases (from one repository to 100,000) into type-attributed LSTs and runs 10,000+ deterministic recipes
  across 40+ domains and 10+ languages to drive automated refactoring, framework and dependency migrations, security patching,
  and code governance with verifiable, regression-free results. The platform exposes a GraphQL API for recipe execution and
  commits, a first-party CLI (mod), local and hosted Model Context Protocol (MCP) servers plus bundled Agent Skills for AI
  coding agents, and Moddy, a multi-repo AI agent. Delivered as the Moderne Platform (SaaS) and Moderne DX (air-gapped, on-premises).
  Backed by True Ventures.
url: https://raw.githubusercontent.com/api-evangelist/moderne/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- true-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
x-docs-hosting: github-pages
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 18
  pass: local-v1
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Developer Tools
- Code Transformation
- Automated Refactoring
- Code Migration
- Security Patching
- OpenRewrite
- Static Analysis
- Code Governance
- DevOps
- GraphQL
- AI Agents
- MCP
image: https://moderne.io/favicon.ico
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Moderne GraphQL API
  description: The Moderne Platform GraphQL API for programmatically executing OpenRewrite recipes across organizations of
    repositories, polling recipe-run state, retrieving results and recipe data tables, and committing changes back to source
    control (pull requests). Authenticated with a Bearer personal access token; an interactive GraphiQL playground is served
    at the API root.
  humanURL: https://docs.moderne.io/user-documentation/moderne-platform/references/graphql-api-reference
  baseURL: https://api.app.moderne.io/graphql
  properties:
  - type: APIReference
    url: https://docs.moderne.io/user-documentation/moderne-platform/references/graphql-api-reference
  - type: Authentication
    url: authentication/moderne-authentication.yml
  - type: Conventions
    url: conventions/moderne-conventions.yml
  - type: DataModel
    url: data-model/moderne-data-model.yml
common:
- url: https://moderne.ai/blog
  type: Blog
- url: https://moderne.ai/feed.xml
  type: BlogRSS
- type: Website
  url: https://moderne.ai/
- type: DeveloperPortal
  url: https://docs.moderne.io/
- type: Documentation
  url: https://docs.moderne.io/
- type: APIReference
  url: https://docs.moderne.io/user-documentation/moderne-platform/references/graphql-api-reference
- type: GettingStarted
  url: https://docs.moderne.io/user-documentation/moderne-platform/getting-started/running-your-first-recipe
- type: Authentication
  url: authentication/moderne-authentication.yml
- type: Blog
  url: https://moderne.io/blog
- type: Support
  url: https://moderne.io/contact-us
- type: GitHubOrganization
  url: https://github.com/moderneinc
- type: TermsOfService
  url: https://moderne.io/terms-of-service
- type: PrivacyPolicy
  url: https://moderne.io/privacy-policy
- type: SignUp
  url: https://app.moderne.io/
- type: ChangeLog
  url: changelog/moderne-changelog.yml
- type: LLMsTxt
  url: llms/moderne-llms.txt
- type: MCPServer
  url: mcp/moderne-mcp.yml
- type: CLI
  url: cli/moderne-cli.yml
- type: Packages
  url: packages/moderne-packages.yml
- type: SDKs
  url: packages/moderne-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/moderne-conventions.yml
- type: DataModel
  url: data-model/moderne-data-model.yml
- type: Lifecycle
  url: lifecycle/moderne-lifecycle.yml
- type: Deprecation
  url: lifecycle/moderne-lifecycle.yml
- type: Conformance
  url: conformance/moderne-conformance.yml
- type: Compliance
  url: conformance/moderne-conformance.yml
- type: DomainSecurity
  url: security/moderne-domain-security.yml

Moderne API — frequently asked questions

Does Moderne have an API?

Yes. APIs.io lists 1 API from Moderne, including Moderne GraphQL API.

How do I authenticate with the Moderne API?

Moderne uses bearer-token authentication (http/oauth2/openIdConnect/saml · 2 schemes). The details are profiled on APIs.io as Moderne Authentication.

Does Moderne have an MCP server?

Yes. APIs.io lists 1 MCP server for Moderne: Remote MCP server at api.app.moderne.io.

Is the Moderne API ready for AI agents?

Moderne has a Kin Score of 36.7 out of 100 (thin) and an Agent Readiness score of 9.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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