Readme

ReadMe is a documentation platform built specifically for API-first companies that need interactive, developer-friendly documentation. Founded in 2014 by Gregory Koberger, ReadMe has raised over $35 million in funding and serves companies including Coinbase, Spotify, and Square. The platform addresses a specific pain point: most API documentation is static, outdated, and difficult for developers to use. ReadMe's solution is to make API docs interactive, personalized, and connected to real usage data, so companies can see exactly how developers interact with their APIs and documentation.

Interactive API Explorer

ReadMe's signature feature is the API Explorer, which lets developers make real API calls directly from the documentation page. Instead of reading about an endpoint and then switching to Postman or cURL, developers can fill in parameters, authenticate with their actual API keys, and execute requests inline. The response is displayed immediately below the request, complete with status codes, headers, and formatted response bodies. This try-it-now approach dramatically reduces the time from reading documentation to making a first successful API call, which is critical for developer adoption and retention.

OpenAPI and Swagger Import

ReadMe supports importing OpenAPI (Swagger) specifications to automatically generate API reference documentation. Endpoints, parameters, request bodies, and response schemas are extracted from the spec and rendered into interactive documentation pages. When the API spec is updated, documentation updates automatically. This sync capability is essential for teams that maintain an OpenAPI spec as the source of truth, as it eliminates the manual work of keeping documentation in sync with the actual API. ReadMe supports OpenAPI 3.0 and 3.1, as well as older Swagger 2.0 specifications.

Developer Dashboard and Analytics

ReadMe provides a developer dashboard where individual API consumers can view their API keys, usage statistics, error logs, and recent API calls. This self-service dashboard reduces support burden by giving developers the tools to debug their own integration issues. For the API provider, ReadMe's analytics show which endpoints are most used, which documentation pages get the most traffic, where developers drop off, and which API errors are most common. These insights help product teams prioritize API improvements and documentation updates based on actual usage patterns rather than guesswork.

Guides, Changelog, and Recipes

Beyond API reference docs, ReadMe supports long-form guides for tutorials and conceptual content, a changelog for announcing API updates and new features, and "recipes" that walk developers through common integration scenarios step by step. This structured approach to documentation covers the full developer journey from initial discovery through integration to ongoing usage. The changelog feature is particularly useful for API versioning, as it provides a timeline of changes that developers can subscribe to for notifications.

Pricing and Positioning

ReadMe's free plan allows one project with basic features. The Startup plan at $99/month adds custom domains, analytics, and the developer dashboard. The Business plan at $399/month includes custom branding, integrations, and priority support. Enterprise pricing is custom and includes SSO, audit logs, and SLA guarantees. ReadMe is noticeably more expensive than general-purpose documentation tools like GitBook or Confluence, reflecting its specialized focus on API documentation. The pricing makes sense for companies where API adoption directly drives revenue but may be hard to justify for teams with smaller developer ecosystems.