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By: The ESI Development Team

Published: 2025-10-07

Hold your horses: introducing rate limiting to ESI

Hi all, Today we're announcing the introduction of rate limiting to ESI. This is a significant change that will help ensure fair usage across all applications. Rate limiting will be implemented using a floating window system, and we'll be rolling it out gradually across different routes. The first route that will be rate limited is /status,...

By: The ESI Development Team

Published: 2025-09-30

Route to the future: upgrading the /route route

Today we're announcing a major upgrade to the /route route in ESI. We've completely rewritten it from Python to Go, changed it from GET to POST, and significantly improved its performance and reliability.

By: The ESI Development Team

Published: 2025-09-22

Reworking the SDE: a fresh start for static data

Today we're announcing a complete rework of how we build and distribute the Static Data Export (SDE).

By: The ESI Development Team

Published: 2025-08-07

Early access: Corporation Projects

Today we're announcing an early access period for new Corporation Projects routes in ESI. This early access will run for two weeks and be limited to developers in the EVE Partner Program. Feedback from this group will help us validate the design and make adjustments before going public.

By: The ESI Development Team

Published: 2025-07-25

Changing pagination: turning a new page

Today we're announcing changes to how ESI deals with pagination. This new system will be used for the first time with the introduction of Corporation Projects later this summer. We'll also be opening a discussion thread on Discord for Q&A and feedback from third-party developers.

By: The ESI Development Team

Published: 2025-07-22

Changing specs: from Swagger to OpenAPI

Today we're announcing changes to how we serve our API specifications. We'll also be opening a discussion thread on Discord for Q&A and feedback from third-party developers. Moving forward, we will be publishing our specs as OpenAPI 3.0 and 3.1, and no longer as Swagger 2.0. New updates will be made in the OpenAPI specs only, while we keep Swagger specs in a read-only mode around for a while. We are also introducing a new UI to view the specs.