Apollo Studio vs OpenAPI Studio

Apollo Studio is the interface for Apollo GraphOS, a platform for managing a supergraph and coordinating GraphQL development. Studio Explorer lets developers create, run, and share GraphQL operations, with query linting and autocomplete. GraphOS maintains a central registry of schemas and metadata, generates changelogs, and visualizes graphs. Teams can review proposed schema changes asynchronously and validate them against past requests from registered clients to check for breaking changes. Composition, validation, and approvals can connect to CI/CD pipelines. Access controls include granular roles and filtered graph variants for specific clients or partners. Studio tracks usage by field, client, and operation, showing trends, request volume, rates, errors, and service traces; OpenTelemetry support can send metrics to a chosen APM tool. Rover CLI supports schema publishing, CI checks, and local supergraph testing, while the Platform API enables custom automation. GraphOS supports any GraphQL API, including Federation and Connectors. Free costs nothing, supports up to three developers, and retains checks and insights data for one day. Developer starts at $5 a month, based on $5 per million requests.

OpenAPI Studio is a visual editor for designing, testing, and publishing AI-ready APIs on the web or through self-hosted deployment. Its flow builder displays API paths as node graphs with four layout algorithms. A server-side proxy executes requests without browser CORS limitations. Recipes can chain up to 10 API calls, map responses with JSONPath, and apply assertions at each step. Every workspace includes a six-tool MCP server for searching, retrieving, creating, updating, running, and analyzing. The service supports OpenAPI, AsyncAPI, contract validation, Git synchronization, and team collaboration. WebSocket endpoints can be modeled and tested, then exported as AsyncAPI 3.0 YAML. Native integrations include GitHub, Slack, Linear, Notion, and MCP connections for AI assistants; OAuth is used and tokens are encrypted in workspaces. Roles include Owner, Editor, and Viewer. Plans are Free at free, Pro at $9 a month, Team at $29 a month, and Scale at $99 a month.