Generate TypeScript interfaces or type aliases from a JSON sample. Nested objects become named declarations (or inline object types), arrays infer element unions, and identical shapes are declared once.
This page documents the HTTP endpoint POST /api/tools/json-to-typescript/execute. See the MCP reference →
Call it over REST
POST https://api.findutils.com/api/tools/json-to-typescript/execute · no API keys · 60 requests/min per IP
Execute — verified arguments
curl -X POST https://api.findutils.com/api/tools/json-to-typescript/execute \
-H "Content-Type: application/json" \
-d '{
"json": "{\"id\":1,\"user\":{\"name\":\"A\"}}"
}' Parameter schema for this endpoint
curl https://api.findutils.com/api/tools/json-to-typescript Input schema
| Argument | Type | Required | Description |
|---|---|---|---|
| json | string | yes | JSON sample (an object, or an array of objects). |
| root_name | string | no | Name of the root type. Default: "Root". Default: "Root". |
| output_type | string (interface | type) | no | "interface" or "type" (type alias). Default: "interface". Default: "interface". |
| naming_convention | string (pascal | camel) | no | Type-name casing: "pascal" or "camel". Default: "pascal". Default: "pascal". |
| make_optional | boolean | no | Mark every property optional with "?". Default: false. Default: false. |
| add_export | boolean | no | Prefix declarations with "export". Default: true. Default: true. |
| inline_nested_objects | boolean | no | Write nested objects inline instead of as separate declarations. Default: false. Default: false. |
Example arguments (verified)
{
"json": {
"id": 1,
"user": {
"name": "A"
}
}
} Arguments that carry JSON as a string are shown decoded for readability. The Copy button copies the exact wire arguments.
Also an MCP tool
Claude, Cursor, and any MCP client can call this tool as
findutils:json_to_typescript after one connect command.
Connect once
claude mcp add findutils --transport http https://mcp.findutils.com/ More Data tools
Api Docs Generator
Return API documentation generated from a list of endpoints, as Markdown (with table of contents, request/response examples) or as an OpenAP
Csv To Json
Parse CSV text into an array of objects keyed by the header row.
Graphql To Typescript
Convert a GraphQL SDL schema into TypeScript type definitions and return the generated code with counts of emitted types, enums, and inputs.
Html Table To Json
Convert an HTML <table> into JSON — an array of objects keyed by the header row, or an array of row arrays.
Jq Playground
Returns the result of running a jq-style filter over a JSON document.
Json Comparer
Returns a git-style line diff of two JSON documents after both are pretty-printed with 2-space indentation.
Json Diff
Returns the semantic differences between two JSON documents as a list of added, removed and modified paths with their old and new values, pl
Json Faker
Returns an array of fake JSON records built from a field list, for testing and prototyping.