Dev Insights Blog
Updates, tips, and stories to keep you in the loop
Spring Cleaning: legacy routes removed 24 March 2026
Time to retire some old parts of the ESI infrastructure. On 24 March 2026, a batch of legacy routes will be removed. For anyone still using them, consider this the final heads-up to switch before they're gone.
Market Orders: rate limit rolls out on February 24, 2026
We're continuing to put more ESI routes under rate limiting. This time it's the turn of the market-order group.
Smarter caching: when events drive invalidation
Today we're introducing a smarter caching system in which events (rather than time) are used to invalidate the cache.
Looking Back at YC127
It has been an eventful year for third-party development in and around New Eden, going from (almost quite literally) 0 km/h to Mach 2 in the span of weeks and maintaining this speed has been quite the challenge, but an extremely satisfying one.
Introducing: Freelance Jobs
Today we’re introducing Freelance Jobs to ESI.
A better view on status: improving ESI health monitoring
Today we're announcing improvements to how ESI reports its health status. The health status route is migrating from /status.json to /meta/status and the Status Dashboard gets a fresh new look.
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,...
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.
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).
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.
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.
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.