ReadMe website screenshot

ReadMe

ReadMe is a developer hub platform that helps companies design, document, and operate their APIs. The platform combines hosted API reference (OpenAPI-driven), guides and changelog, bi-directional Git sync (GitHub and GitLab), interactive API explorer, Try-It console, Developer Dashboard with real-time API logs, and a deep layer of AI tooling — including the ReadMe Agent for multi-page editing, Inline AI rewrites, the AI Linter for style-guide enforcement, Docs Audit, GitHub AI Writer for PR-triggered doc updates, Ask AI for end users, and Model Context Protocol (MCP) servers for both ReadMe itself and each customer project so AI tools can search, read, update docs, and call APIs.

ReadMe publishes 13 APIs on the APIs.io network, including Personalized Docs Webhook, Analytics API, API Keys API, and 10 more. Tagged areas include Documentation, Developer Hub, API Reference, Portals, and Analytics.

The ReadMe catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 3 Spectral governance rulesets.

ReadMe’s developer surface includes authentication, developer portal, getting-started guide, documentation, API reference, pricing, signup flow, and 38 more developer resources.

65.3/100 strong ▬ flat Agent 36/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
14 APIs
DocumentationDeveloper HubAPI ReferencePortalsAnalyticsAIMCPBi-Directional Sync

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 65.3/100 · strong
Contract Quality 16.9 / 25
Developer Ergonomics 13.0 / 20
Commercial Clarity 16.8 / 20
Operational Transparency 7.5 / 13
Governance 4.5 / 12
Discoverability 6.5 / 10
Agent readiness — 36/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 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
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/readme: 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 14

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

ReadMe MCP Server

ReadMe operates a hosted Model Context Protocol (MCP) server that lets AI tools (Claude, Cursor, IDEs, CI pipelines) search, read, and update ReadMe documentation through natura...

ReadMe Personalized Docs Webhook

ReadMe's Personalized Docs Webhook is the outbound, customer-hosted webhook the developer hub calls at user sign-in to look up a reader's account data. ReadMe POSTs a JSON body ...

ReadMe Analytics API

Page view, quality, and search analytics

ReadMe API Keys API

Manage ReadMe API keys

ReadMe APIs API

Manage API definitions and reference pages

ReadMe Branches API

Manage versions and branches

ReadMe Categories API

Manage sidebar groupings

ReadMe Changelog API

Manage changelog posts

ReadMe Custom Pages API

Manage custom documentation pages

ReadMe Guides API

Manage knowledge base guide pages

ReadMe Images API

Upload and manage images

ReadMe Metrics API

Send API request metrics from server-side SDKs

ReadMe Recipes API

Manage interactive recipe content

ReadMe Search API

Search knowledge base content

Scroll for all 14

Open Collections 2

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

ReadMe API

OPEN COLLECTION

Arazzo Workflows 12

Multi-step API workflows described with the Arazzo specification.

ReadMe Stand Up A New Version With Starter Docs

Create a branch (version), add a category, and seed it with a first guide.

ARAZZO

ReadMe Create A Category With A Guide

Create a sidebar category and immediately add a guide page to it.

ARAZZO

ReadMe Publish A Changelog Post

Create a changelog post on a branch and read it back by slug.

ARAZZO

ReadMe Publish A Custom Page

Create a custom page on a branch and read it back by slug.

ARAZZO

ReadMe Publish A Recipe

Create an interactive recipe and read it back by slug.

ARAZZO

ReadMe Cut A Version And Announce It

Create a branch, upload its API definition, and post a launch changelog.

ARAZZO

ReadMe Submit Metrics And Audit Quality

Send API request logs to Metrics, then retrieve page quality scores.

ARAZZO

ReadMe Upload An API Definition And Verify

Upload an OpenAPI definition to a branch and read the created definition back.

ARAZZO

ReadMe Upsert A Category

Find a category by slug and update it if it exists, otherwise create it.

ARAZZO

ReadMe Upsert A Changelog Post

Find a changelog post by slug and update it if it exists, otherwise create it.

ARAZZO

ReadMe Upsert A Custom Page

Find a custom page by slug and update it if it exists, otherwise create it.

ARAZZO

ReadMe Upsert A Guide Page

Find a guide by slug and update it if it exists, otherwise create it.

ARAZZO

Scroll for all 12

GraphQL 1

GraphQL schemas published by this provider.

Pricing Plans 1

Published pricing tiers and plan structures.

Readme Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Readme Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

ReadMe Personalized Docs Webhook

AsyncAPI 2.6 description of ReadMe's Personalized Docs Webhook surface. The Personalized Docs Webhook is the integration that lets ReadMe inject a logged-in end user's account d...

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Readme Context

35 classes · 0 properties

JSON-LD

Spectral Rules 3

Spectral governance rulesets for linting and validating these APIs.

ReadMe API Rules

3 rules · 1 errors 1 warnings 1 info

SPECTRAL

ReadMe API Rules

5 rules · 3 warnings 2 info

SPECTRAL

ReadMe API Rules

9 rules · 5 errors 4 warnings

SPECTRAL

JSON Schema 5

Standalone JSON Schema definitions for this provider's data models.

ReadMe API Definition

9 properties

JSON SCHEMA

ReadMe Branch

8 properties

JSON SCHEMA

ReadMe Changelog Post

8 properties

JSON SCHEMA

ReadMe Guide

11 properties

JSON SCHEMA

ReadMe Metrics Request Log

6 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Readme Developer Hub Structure

0 properties

JSON STRUCTURE

Examples 5

Example request and response payloads for these APIs.

Readme List Apis Example

2 fields

EXAMPLE

Readme Search Example

2 fields

EXAMPLE

Security Posture 2

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

Readme Authentication

http · 2 schemes

SECURITY

Readme Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Readme Agentic Access

44 operations · 25 acting

44 operations · 25 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 15

Pagination, idempotency, versioning, errors, and events

Scroll for all 15

Build 8

SDKs, sample code, and the tooling you integrate with

Scroll for all 8

Access & Security 2

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 5

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: readme
url: https://raw.githubusercontent.com/api-evangelist/readme/refs/heads/main/apis.yml
name: ReadMe
description: ReadMe is a developer hub platform that helps companies design, document, and operate their APIs. The platform
  combines hosted API reference (OpenAPI-driven), guides and changelog, bi-directional Git sync (GitHub and GitLab), interactive
  API explorer, Try-It console, Developer Dashboard with real-time API logs, and a deep layer of AI tooling — including the
  ReadMe Agent for multi-page editing, Inline AI rewrites, the AI Linter for style-guide enforcement, Docs Audit, GitHub AI
  Writer for PR-triggered doc updates, Ask AI for end users, and Model Context Protocol (MCP) servers for both ReadMe itself
  and each customer project so AI tools can search, read, update docs, and call APIs.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/readme.png
type: Index
access: 3rd-Party
position: Consumer
created: '2025-01-08'
modified: '2026-05-30'
tags:
- Documentation
- Developer Hub
- API Reference
- Portals
- Analytics
- AI
- MCP
- Bi-Directional Sync
segments:
- Documentation
apis:
- aid: readme:mcp-server
  name: ReadMe MCP Server
  description: ReadMe operates a hosted Model Context Protocol (MCP) server that lets AI tools (Claude, Cursor, IDEs, CI pipelines)
    search, read, and update ReadMe documentation through natural language. ReadMe also auto-provisions a per-project MCP
    server for every customer so end users' AI tools can read, search, and call that project's API directly.
  humanURL: https://docs.readme.com/main/docs/readmes-mcp-server
  tags:
  - MCP
  - AI
  - Model Context Protocol
  - Agents
  properties:
  - type: Documentation
    url: https://docs.readme.com/main/docs/readmes-mcp-server
  - type: UseCases
    url: https://docs.readme.com/main/docs/readmes-mcp-use-cases
  - type: Documentation
    url: https://docs.readme.com/main/docs/your-projects-mcp-server
  - type: UseCases
    url: https://docs.readme.com/main/docs/your-projects-mcp-use-cases
  - type: Explainer
    url: https://docs.readme.com/main/docs/mcp-servers
- aid: readme:personalized-docs-webhook
  name: ReadMe Personalized Docs Webhook
  description: ReadMe's Personalized Docs Webhook is the outbound, customer-hosted webhook the developer hub calls at user
    sign-in to look up a reader's account data. ReadMe POSTs a JSON body containing the user's email, signs the request with
    a Stripe-style `ReadMe-Signature` header (`t=<unix-ms>,v0=<hmac-sha256-hex>`) using the project's webhook secret, and
    expects a JSON response describing the user (apiKey, keys array, server-variable parameters, Basic Auth, GraphQL bearer,
    etc.) which the hub then merges into the rendered API Reference, Try-It console, and Recipes. The single documented event
    is the user-data lookup.
  humanURL: https://docs.readme.com/main/docs/personalized-docs-webhook
  tags:
  - Webhooks
  - Personalized Docs
  - Developer Hub
  - Authentication
  properties:
  - type: Documentation
    url: https://docs.readme.com/main/docs/personalized-docs-webhook
  - type: Explainer
    url: https://docs.readme.com/main/docs/personalized-docs
  - type: Documentation
    url: https://docs.readme.com/main/docs/user-data-options
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
  - type: AsyncAPI
    url: https://raw.githubusercontent.com/api-evangelist/readme/refs/heads/main/asyncapi/readme-personalized-docs-webhook-asyncapi.yml
- aid: readme:readme-analytics-api
  name: ReadMe Analytics API
  description: Page view, quality, and search analytics
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/readme-analytics-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-api-keys-api
  name: ReadMe API Keys API
  description: Manage ReadMe API keys
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - API Keys
  properties:
  - type: OpenAPI
    url: openapi/readme-api-keys-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-apis-api
  name: ReadMe APIs API
  description: Manage API definitions and reference pages
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - APIs
  properties:
  - type: OpenAPI
    url: openapi/readme-apis-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-branches-api
  name: ReadMe Branches API
  description: Manage versions and branches
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Branches
  properties:
  - type: OpenAPI
    url: openapi/readme-branches-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-categories-api
  name: ReadMe Categories API
  description: Manage sidebar groupings
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Categories
  properties:
  - type: OpenAPI
    url: openapi/readme-categories-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-changelog-api
  name: ReadMe Changelog API
  description: Manage changelog posts
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Changelog
  properties:
  - type: OpenAPI
    url: openapi/readme-changelog-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-custom-pages-api
  name: ReadMe Custom Pages API
  description: Manage custom documentation pages
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Custom Pages
  properties:
  - type: OpenAPI
    url: openapi/readme-custom-pages-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-guides-api
  name: ReadMe Guides API
  description: Manage knowledge base guide pages
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Guides
  properties:
  - type: OpenAPI
    url: openapi/readme-guides-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-images-api
  name: ReadMe Images API
  description: Upload and manage images
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/readme-images-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-metrics-api
  name: ReadMe Metrics API
  description: Send API request metrics from server-side SDKs
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/readme-metrics-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-recipes-api
  name: ReadMe Recipes API
  description: Manage interactive recipe content
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Recipes
  properties:
  - type: OpenAPI
    url: openapi/readme-recipes-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
- aid: readme:readme-search-api
  name: ReadMe Search API
  description: Search knowledge base content
  humanURL: https://docs.readme.com/main/reference/intro-to-the-readme-api
  baseURL: https://api.readme.com/v2
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/readme-search-api-openapi.yml
  - type: Documentation
    url: https://docs.readme.com/main/reference/intro-to-the-readme-api
  - type: Authentication
    url: https://docs.readme.com/main/reference/authentication
  - type: GraphQL
    url: graphql/readme-graphql.md
  - type: Documentation
    url: https://docs.readme.com/main/docs/sending-api-logs
  - type: SDKs
    url: https://github.com/readmeio/metrics-sdks
common:
- type: AgenticAccess
  url: agentic-access/readme-agentic-access.yml
- type: DomainSecurity
  url: security/readme-domain-security.yml
- type: Authentication
  url: authentication/readme-authentication.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/readme/overview
- type: Arazzo
  url: arazzo/readme-create-branch-with-guide-workflow.yml
  name: ReadMe Stand Up A New Version With Starter Docs
- type: Arazzo
  url: arazzo/readme-create-category-with-guide-workflow.yml
  name: ReadMe Create A Category With A Guide
- type: Arazzo
  url: arazzo/readme-publish-changelog-post-workflow.yml
  name: ReadMe Publish A Changelog Post
- type: Arazzo
  url: arazzo/readme-publish-custom-page-workflow.yml
  name: ReadMe Publish A Custom Page
- type: Arazzo
  url: arazzo/readme-publish-recipe-workflow.yml
  name: ReadMe Publish A Recipe
- type: Arazzo
  url: arazzo/readme-release-version-workflow.yml
  name: ReadMe Cut A Version And Announce It
- type: Arazzo
  url: arazzo/readme-submit-metrics-and-audit-workflow.yml
  name: ReadMe Submit Metrics And Audit Quality
- type: Arazzo
  url: arazzo/readme-upload-api-definition-workflow.yml
  name: ReadMe Upload An API Definition And Verify
- type: Arazzo
  url: arazzo/readme-upsert-category-workflow.yml
  name: ReadMe Upsert A Category
- type: Arazzo
  url: arazzo/readme-upsert-changelog-post-workflow.yml
  name: ReadMe Upsert A Changelog Post
- type: Arazzo
  url: arazzo/readme-upsert-custom-page-workflow.yml
  name: ReadMe Upsert A Custom Page
- type: Arazzo
  url: arazzo/readme-upsert-guide-workflow.yml
  name: ReadMe Upsert A Guide Page
- type: Portal
  url: https://readme.com
- type: GettingStarted
  url: https://docs.readme.com/main/docs/quickstart
- type: Documentation
  url: https://docs.readme.com
- type: APIReference
  url: https://docs.readme.com/main/reference/intro-to-the-readme-api
- type: Pricing
  url: https://readme.com/pricing
- type: Signup
  url: https://dash.readme.com/signup
- type: Login
  url: https://dash.readme.com/login
- type: Blog
  url: https://readme.com/blog
- type: ChangeLog
  url: https://docs.readme.com/main/changelog
- type: About
  url: https://readme.com/about
- type: StatusPage
  url: https://www.readmestatus.com
- type: TermsOfService
  url: https://readme.com/tos
- type: PrivacyPolicy
  url: https://readme.com/privacy
- type: GitHubOrg
  url: https://github.com/readmeio
- type: LinkedIn
  url: https://www.linkedin.com/company/readme
- type: LlmsText
  url: https://docs.readme.com/llms.txt
- type: CLI
  url: https://github.com/readmeio/rdme
- type: SDKs
  url: https://github.com/readmeio/metrics-sdks
- type: Tools
  url: https://github.com/readmeio/oas
- type: Tools
  url: https://github.com/readmeio/api
- type: Tools
  url: https://github.com/readmeio/markdown
- type: GitHubAction
  url: https://github.com/readmeio/rdme
- type: Marketplace
  url: https://github.com/readmeio/marketplace
- type: Plans
  url: plans/readme-plans-pricing.yml
- type: RateLimits
  url: rate-limits/readme-rate-limits.yml
- type: FinOps
  url: finops/readme-finops.yml
- type: Vocabulary
  url: vocabulary/readme-vocabulary.yml
- type: JSONLDContext
  url: json-ld/readme-context.jsonld
- type: SpectralRules
  url: rules/readme-rules.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.19'