Napkin.AI

Napkin AI turns typed or pasted text into editable visuals — diagrams, charts, mind maps, icons, and infographics — and into full presentations, with no prompting or design skill required. Two products share the same text-to-visual engine: Napkin Visuals (standalone diagrams and graphics, exportable to PPT, PNG, PDF, or SVG) and Napkin Slides (beta AI presentation agent that builds a tailored, fully editable deck). A developer-preview REST API also generates visuals programmatically: submit text to POST /v1/visual, poll the request status, then download the generated PNG/SVG/PPT files. Authentication is by account API token (HTTP Bearer) or OAuth 2.0 (beta) with user and generation scopes. Napkin AI is backed by Accel.

Napkin.AI publishes 1 API on the APIs.io network: Visuals API. Tagged areas include Company, Ai, Visualization, Diagrams, and Charts.

Napkin.AI’s developer surface includes authentication, documentation, API reference, getting-started guide, pricing, signup flow, support, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub
50.6/100 developing ▬ flat Agent 72/100 agent native Full breakdown ↓
scored 2026-07-23 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyAiVisualizationDiagramsChartsInfographicsPresentationsContent GenerationDesignDeveloper API

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 50.6/100 · developing
Contract Quality 15.5 / 25
Developer Ergonomics 13.5 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 72/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/napkinai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Napkin.AI Visuals API

Programmatic visual content generation.

Arazzo Workflows 2

Multi-step API workflows described with the Arazzo specification.

_Index

ARAZZO

Generate a visual from text with Napkin AI

Submit text to Napkin AI, poll the asynchronous request until it completes, then download each generated file (PNG/SVG/PDF/PPT).

ARAZZO

MCP Servers 1

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

napkinai-mcp.yml

MCP SERVER

Security Posture 3

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

Napkinai Authentication

http/oauth2 · 2 schemes

SECURITY

Napkinai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Napkinai Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Napkinai Scopes

2 scopes · authorizationCode

2 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Napkinai Agentic Access

3 operations · 1 acting

3 operations · 1 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 OpenAPI
OpenAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 DataModel
DataModel
 Arazzo
Arazzo

Access & Security 6

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 DomainSecurity
DomainSecurity
 OAuthScopes
OAuthScopes
 Authentication
Authentication
 SecurityTxt
SecurityTxt

Operate 2

Status, limits, changes, and where to get help

Support
Support
 ChangeLog
ChangeLog

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

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: napkinai
name: Napkin.AI
description: 'Napkin AI turns typed or pasted text into editable visuals — diagrams, charts, mind maps, icons, and infographics
  — and into full presentations, with no prompting or design skill required. Two products share the same text-to-visual engine:
  Napkin Visuals (standalone diagrams and graphics, exportable to PPT, PNG, PDF, or SVG) and Napkin Slides (beta AI presentation
  agent that builds a tailored, fully editable deck). A developer-preview REST API also generates visuals programmatically:
  submit text to POST /v1/visual, poll the request status, then download the generated PNG/SVG/PPT files. Authentication is
  by account API token (HTTP Bearer) or OAuth 2.0 (beta) with user and generation scopes. Napkin AI is backed by Accel.'
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.napkin.ai/assets/og-image-v5.png?v=2
url: https://raw.githubusercontent.com/api-evangelist/napkinai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
x-tier: profiled
x-tier-reason: has-developer-api
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Ai
- Visualization
- Diagrams
- Charts
- Infographics
- Presentations
- Content Generation
- Design
- Developer API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 21
  pass: local-v1
apis:
- aid: napkinai:napkinai-visuals-api
  name: Napkin.AI Visuals API
  description: Programmatic visual content generation.
  humanURL: https://api.napkin.ai/
  baseURL: https://api.napkin.ai/v1
  tags:
  - Visuals
  properties:
  - type: OpenAPI
    url: openapi/napkinai-visuals-api-openapi.yml
  - type: Documentation
    url: https://api.napkin.ai/
  - type: APIReference
    url: https://api.napkin.ai/api/create-visual-request
  - type: GettingStarted
    url: https://api.napkin.ai/api/napkin-api-documentation
  - type: Authentication
    url: https://api.napkin.ai/oauth-user-authentication
  - type: ChangeLog
    url: https://api.napkin.ai/docs/changelog
common:
- type: VulnerabilityDisclosure
  url: security/napkinai-vulnerability-disclosure.yml
- type: Security
  url: https://vdp.napkin.ai
- type: DomainSecurity
  url: security/napkinai-domain-security.yml
- type: AgenticAccess
  url: agentic-access/napkinai-agentic-access.yml
- type: OAuthScopes
  url: scopes/napkinai-scopes.yml
- type: Authentication
  url: authentication/napkinai-authentication.yml
- type: Website
  url: https://www.napkin.ai/
- type: DeveloperPortal
  url: https://api.napkin.ai/
- type: Documentation
  url: https://api.napkin.ai/
- type: APIReference
  url: https://api.napkin.ai/api/create-visual-request
- type: GettingStarted
  url: https://api.napkin.ai/api/napkin-api-documentation
- type: OpenAPI
  url: openapi/napkinai-openapi.yml
- type: Pricing
  url: https://www.napkin.ai/pricing/
- type: SignUp
  url: https://app.napkin.ai/signin
- type: TermsOfService
  url: https://www.napkin.ai/terms-conditions/
- type: PrivacyPolicy
  url: https://www.napkin.ai/privacy-policy/
- type: Support
  url: https://help.napkin.ai/en/
- type: Blog
  url: https://www.napkin.ai/blog/
- type: LLMsTxt
  url: llms/napkinai-llms.txt
- type: WellKnown
  url: well-known/napkinai-well-known.yml
- type: SecurityTxt
  url: well-known/napkinai-security.txt
- type: MCPServer
  url: mcp/napkinai-mcp.yml
- type: Conformance
  url: conformance/napkinai-conformance.yml
- type: ErrorCatalog
  url: errors/napkinai-problem-types.yml
- type: Lifecycle
  url: lifecycle/napkinai-lifecycle.yml
- type: Conventions
  url: conventions/napkinai-conventions.yml
- type: ChangeLog
  url: changelog/napkinai-changelog.yml
- type: DataModel
  url: data-model/napkinai-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Overlay
  url: overlays/napkinai-openapi-overlay.yaml
- type: Arazzo
  name: Generate a visual from text with Napkin AI
  url: arazzo/napkinai-generate-visual.yml