# developer.apis.io — Developer Portal and Feeds > developer.apis.io is the developer-facing slice of the APIs.io network. It surfaces the network's machine-readable feeds, agent skills, and integration entry points in one place — the side of apis.io that exists for systems and agents, not for humans browsing. This subdomain is the recommended starting point for any agent or build pipeline that consumes APIs.io data. Search indexing, AI grounding/RAG, and AI training are explicitly permitted. ## Core entry points - [Developer home](https://developer.apis.io/): Index of feeds, skills, and developer documentation - [sitemap.xml](https://developer.apis.io/sitemap.xml): Sitemap of every developer page ## Machine-readable feeds - The hub at https://apis.io/.well-known/api-catalog enumerates the whole network in RFC 9727 linkset form - Each sister subdomain publishes its own search-index.json and its own api-catalog (where applicable) ## Sister sites in the APIs.io network - [apis.io](https://apis.io/): Search hub and blog (master [llms.txt](https://apis.io/llms.txt)) - [providers.apis.io](https://providers.apis.io/): API provider profiles - [apis.apis.io](https://apis.apis.io/): Individual API records - [capabilities.apis.io](https://capabilities.apis.io/): Naftiko capability specs See https://apis.io/llms.txt for the full network map. ## License and usage Public catalog of API metadata and developer-facing feeds, intended for both human and machine consumption. See https://apis.io/terms/.