API Hub
Find APIs by facts and see every result.
Each filter corresponds to a sourced fact in an entry. Combine supported conditions and browse all results in order, without stopping after the first few pages.
Filters
Combine filters from available fields.
Each condition has a name and value. Values are entries too, so you can open one and keep exploring.
Provider
The person or organization that provides an API. See all APIs from one provider together.
Authentication
No authentication, API key, or user authorization, recorded separately for each version.
Specifications
Whether specifications exist, where they are, and who provided them.
Version status
Announced, available, withdrawn, or canceled.
Relationships
Whether it has an MCP server wrapper, a client library that calls it, or a skill that uses it.
Names and languages
Search names and aliases in any language.
Ratings
Filter by a rating question and see the number of ratings.
Dates
Filter by version release or fact verification date.
Previews, rankings, and complete lists make different promises. A complete list continues to the last entry.
Every result states how precise its count is and when the data was updated. The size of a page is not the end of the list.
Identity
One entry for each API.
A renamed API, a new identifier, or a duplicate submission still belongs to one entry.
Identifiers name their source
Each identifier records its namespace and source. The same name in different places does not make two APIs the same.
Old names remain searchable
Aliases, former names, and names in each language are stored separately. Search any of them to find the API.
Duplicates are merged
A merge plan lists affected ratings, reviews, and follows for human review. Merges can be undone.
Old URLs point to the new entry
Merged entries point to the one that remains, with the reason for the merge recorded.
Views
Save common filters and follow them.
Save a set of filters as a named view and share it with others. Follow a view to see new matching entries in your activity feed or receive them in a digest.
No authentication, has specifications
Start with APIs that have specifications and need no authentication
One provider
See all APIs from one organization together
Has an MCP server
APIs linked to an MCP server
Traditional Chinese names
APIs with a curated Chinese name
Example: Example view names and filters.
Start with a sourced fact when you look for an API.
Use one account to find APIs, follow version changes, and share integration experience with others.