The Pulumi Cloud REST API now has an OpenAPI 3.0 specification you can fetch at runtime. Use it for client generation, validation, and discovery.

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Pulumi Cloud REST API now provides an OpenAPI 3.0 specification that can be fetched at runtime from api.pulumi.com. The spec serves as a single source of truth, generated directly from the API definition that powers the backend. This enables client generation in any language, request/response validation, automated testing, and interactive documentation through tools like Swagger UI. Future plans include using the spec to drive the Pulumi CLI, auto-generate the Pulumi Service Provider, and enhance official API documentation.

Announcing OpenAPI support for the Pulumi Cloud REST API

A single contract for the Pulumi Cloud REST API