OpenAPI - sgml/signature GitHub Wiki
- https://jsonapi.org/format/
- https://www.drupal.org/docs/8/modules/jsonapi/filtering
- http://apisjson.org/
- https://services.odata.org/
- https://opendata.stackexchange.com/questions/266/a-database-of-open-databases
- https://www.odata.org/getting-started/understand-odata-in-6-steps/
- https://apis.guru/
- http://agile-iot.github.io/agile-api-spec/docs/html/api.html
- https://developer.trade.gov/de-minimis.html
- https://www.ibm.com/developerworks/library/wa-use-swagger-to-document-and-define-restful-apis/
- https://developer.atlassian.com/bitbucket/api/2/reference/resource/repositories/%7Busername%7D/%7Brepo_slug%7D
- https://www.ibm.com/support/knowledgecenter/en/SS4SVW_beta/com.ibm.zosconnect.doc/designing/api_install_cert.html
- https://swagger.io/open-source-integrations/
- http://docs.oasis-open.org/odata/odata-openapi/v1.0/cnprd01/odata-openapi-v1.0-cnprd01.html
- https://www.npmjs.com/package/odata2openapi
- https://www.w3.org/2017/05/wot-f2f/slides/OCF_Overview_for_W3C_F2F_McCool.pdf
- https://nordicapis.com/api-discovery-15-ways-to-find-apis/
- https://developer.ibm.com/mainframe/docs/what-makes-a-good-api/whats-best-practice-for-http-verbs-with-apis/why-the-open-api-initiative-is-important-to-zos-connect-and-you/
- https://www.ibm.com/developerworks/library/wa-use-swagger-to-document-and-define-restful-apis/
- https://devcenter.heroku.com/articles/json-schema-for-platform-api
- https://www.perl.com/article/mock-apis-for-free-using-json-schemas/