# \#openapi

**URL:** https://erlangforums.com/tag/openapi/149.md

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## [gmconfig - JSON-Schema validator and config lookup API](https://erlangforums.com/t/gmconfig-json-schema-validator-and-config-lookup-api/5631)

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**Author:** [@uwiger](https://erlangforums.com/u/uwiger)\
**Replies:** 2\
**Last updated:** [May 16, 2026, 1:25pm UTC](https://erlangforums.com/t/gmconfig-json-schema-validator-and-config-lookup-api/5631 "2026-05-16T13:25:45Z")

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gmconfig is a configuration management application derived from the configuration subsystem of Aeternity and Gajumaru. It sports a pretty complete JSON-Schema validator and an efficient configuration lookup API. In this…

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## [OpenAPI support: what status?](https://erlangforums.com/t/openapi-support-what-status/239)

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**Author:** [@maxlapshin](https://erlangforums.com/u/maxlapshin)\
**Replies:** 3\
**Last updated:** [October 29, 2021, 8:12pm UTC](https://erlangforums.com/t/openapi-support-what-status/239 "2021-10-29T20:12:07Z")

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We are migrating to OpenAPI 3 in our Flussonic ecosystem and I have to write everything from scratch: api code generator, validator, etc. Who else is using api-first approach? What tools do you use?