Properties
| Name | Type | Description |
|---|---|---|
| uuid | string | |
| controlled_attribute_id | integer | |
| controlled_value_id | integer | |
| concatenated_attr_val | string | |
| user | object | |
| user_id | integer | |
| vote_score | integer | |
| votes | array |
JSON Schema
{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "Annotation",
"type": "object",
"properties": {
"uuid": {
"type": "string"
},
"controlled_attribute_id": {
"type": "integer"
},
"controlled_value_id": {
"type": "integer"
},
"concatenated_attr_val": {
"type": "string"
},
"user": {
"$ref": "#/definitions/User"
},
"user_id": {
"type": "integer"
},
"vote_score": {
"type": "integer"
},
"votes": {
"type": "array",
"items": {
"$ref": "#/definitions/Vote"
}
}
}
}
Work with this as data
Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This JSON Schema
curl "https://apis.io/api/v1/json-schemas/annotation"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.