Sudowrite

Sudowrite is an AI writing platform built specifically for fiction and creative writers, used by 300,000+ authors from debut novelists to bestselling professionals. Its fiction-trained Muse AI model, alongside Story Bible (AI-powered character, worldbuilding, plot, and style memory), First Draft chapter drafting, and tools like Write, Rewrite, Describe, Expand, Brainstorm, and Canvas, helps writers draft, revise, and develop stories faster without sacrificing their voice. Sudowrite also offers a 1,000+ plugin marketplace, multi-model support (Sudowrite Muse, Claude, GPT, Gemini), and web plus iOS/Android apps. Named "a salvation" by The New Yorker and featured in The New York Times, The Verge, Time, and Wired. Sudowrite publishes no public developer API; the surface here is its consumer product, docs, and support properties.

Sudowrite is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Writing, Fiction, and Creative Writing.

Sudowrite’s developer surface includes documentation, engineering blog, pricing, signup flow, support, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

17.7/100 emerging ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Artificial Intelligence Writing FictionCreative WritingGenerative AI Content Generation Authoring Publishing Productivity

Kin Score

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

Composite quality — 17.7/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 3.3 / 20

Access Clarity 7.6 / 20

Operational Transparency 1.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.7 / 10

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

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.

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/sudowrite: 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 →

Security Posture 1

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

Sudowrite Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

Community

Community

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: sudowrite
name: Sudowrite
description: Sudowrite is an AI writing platform built specifically for fiction and creative writers, used by 300,000+ authors
  from debut novelists to bestselling professionals. Its fiction-trained Muse AI model, alongside Story Bible (AI-powered
  character, worldbuilding, plot, and style memory), First Draft chapter drafting, and tools like Write, Rewrite, Describe,
  Expand, Brainstorm, and Canvas, helps writers draft, revise, and develop stories faster without sacrificing their voice.
  Sudowrite also offers a 1,000+ plugin marketplace, multi-model support (Sudowrite Muse, Claude, GPT, Gemini), and web plus
  iOS/Android apps. Named "a salvation" by The New Yorker and featured in The New York Times, The Verge, Time, and Wired.
  Sudowrite publishes no public developer API; the surface here is its consumer product, docs, and support properties.
url: https://raw.githubusercontent.com/api-evangelist/sudowrite/refs/heads/main/apis.yml
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: []
  generated: '2026-07-22'
  method: derived
image: https://framerusercontent.com/assets/1k2TYC2YpFUOb9cH9JmDo6QyUp8.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Artificial Intelligence
- Writing
- Fiction
- Creative Writing
- Generative AI
- Content Generation
- Authoring
- Publishing
- Productivity
tags_raw:
- Company
- AI
- Writing
- Fiction
- Creative Writing
- Generative AI
- Content Generation
- Authoring
- Publishing
- Productivity
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://sudowrite.com
- type: Documentation
  url: https://docs.sudowrite.com
- type: Blog
  url: https://blog.sudowrite.com
- type: Pricing
  url: https://sudowrite.com/pricing
- type: SignUp
  url: https://join.sudowrite.com
- type: Login
  url: https://editor.sudowrite.com
- type: Support
  url: https://sudowrite.com/faq
- type: Community
  url: https://discord.gg/wgZAK9RRfv
- type: TermsOfService
  url: https://sudowrite.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://sudowrite.com/privacy-policy
- type: StatusPage
  url: https://status.sudowrite.com
- type: Lifecycle
  url: lifecycle/sudowrite-lifecycle.yml
- type: LLMsTxt
  url: llms/sudowrite-llms.txt
- type: DomainSecurity
  url: security/sudowrite-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 3
  pass: local-v1

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