OpenAPI Studio vs PactFlow
OpenAPI Studio
openapistudio.app
PactFlow
pactflow.ioSide by side
| Figure | OpenAPI Studio | PactFlow |
|---|---|---|
| Price from | $9/mo | $115.42/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 6 |
| Spec score · API Design Tools | 8.1 (#14) | 9.0 (#3) |
| Integrations | Native integrations include GitHub, Slack, Linear, Notion, and MCP connections for AI assistants. | The integration catalog includes SwaggerHub Editor integration and a Pact Plugin Framework for custom or prebuilt plugins. |
| Maker | OpenAPI Studio is described as a solo developer project built in the open with a public codebase and transparent roadmap. | The about page describes PactFlow as created by DiUS engineers and names Matt Fellows, Beth Skurrie, and Ron Holshausen as founders. |
| Purpose | OpenAPI Studio is a visual editor for designing, testing, and publishing AI-ready APIs. | PactFlow is a managed Pact Broker that helps teams test integrations in distributed systems using contract testing. |
| Support | Community support is provided through GitHub Issues on all tiers, while priority email support is available on Pro, Team, and Scale. | Team includes community support, while Enterprise includes access to contract-testing experts and dedicated support. |
Plans
PactFlow
- StarterFree
- Team yearly$115.42 a month
- Team (yearly billing)$115.42 a month
- Team monthly$127 a month
- Team (monthly billing)$127 a month
- EnterprisePriced on request
In their own words
OpenAPI Studio
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.
PactFlow
PactFlow is a managed Pact Broker for teams checking integrations in distributed systems through contract testing. It supports consumer-driven testing with Pact and bi-directional testing with OpenAPI. Its AI-augmented testing can generate tests from OpenAPI, traffic data or existing code. Integrations include SwaggerHub Editor and Pact plugins, including gRPC and protobuf; pull-request status checks work with GitHub, GitLab, Bitbucket or other source control tools. A Developer API, CLI tools and Terraform support help automate configuration. PactFlow offers a managed service and an Enterprise on-premises option. Starter is free, allows unlimited users and includes two integrations. Team includes 50 integrations and community support; it costs $115.42 a month with yearly billing, billed yearly as $1,385, or $127 a month with monthly billing. Enterprise includes unlimited integrations, SAML SSO, role-based access management and dedicated support, with price available through sales. PactFlow states customer data and backups are stored in AWS data centres in Sydney, Australia, with encryption at rest and in transit.