Standard Schema

Validate an API response with Zod — or Valibot, ArkType, or any Standard Schema validator. StitchAPI is validator-agnostic: bring the schema you already have, hand it straight to a stitch, and each response is checked against it — with the result type inferred from the same schema.

Example

import { stitch } from 'stitchapi';
import { z } from 'zod';

const User = z.object({ id: z.number(), name: z.string() });

const getUser = stitch<{ id: number; name: string }>({
    baseUrl: 'https://api.example.com',
    path: '/users/{id}',
    output: User,
});

The output schema runs against each response; pairing it with the stitch<{ id: number; name: string }> generic types the validated result.

Options

A config's input and output fields accept a raw schema directly — Zod (via safeParse), any Standard Schema (~standard), or a plain predicate ((value) => boolean). Valibot and ArkType implement Standard Schema, so they pass the same way with no special handling.

For anything the built-in coercions don't cover, expose the Standard Schema ~standard interface on your own object — a stitch checks it exactly like a Zod schema, no wrapper in between.

See also