> ## Documentation Index > Fetch the complete documentation index at: https://docs.phosra.com/llms.txt > Use this file to discover all available pages before exploring further. # Add a child > Add child to family ## OpenAPI ````yaml POST /families/{familyID}/children openapi: 3.1.0 info: title: Phosra API description: Universal Parental Controls API - Define once, push everywhere version: 1.0.0 contact: name: Phosra Developer Support url: https://docs.phosra.com license: name: Proprietary url: https://phosra.com/terms servers: - url: https://phosra-api-sandbox-production.up.railway.app/api/v1 description: >- Hosted sandbox — the one canonical, stable, partner-facing testing endpoint (seeded demo family + phosra_test_ keys). Default so the inline Try it never touches production. Same base the CLI uses. - url: https://prodapi.phosra.com/api/v1 description: Production - url: http://localhost:8080/api/v1 description: Local development security: - BearerAuth: [] paths: /families/{familyID}/children: parameters: - name: familyID in: path required: true schema: type: string format: uuid post: tags: - Children summary: Add child to family description: >- Adds a child to the family and returns the created resource. The child's birth date is used to generate age-appropriate policy rules. operationId: addChildToFamily requestBody: required: true content: application/json: schema: type: object required: - name - birth_date properties: name: type: string birth_date: type: string format: date responses: '201': description: Child added content: application/json: schema: $ref: '#/components/schemas/Child' example: id: ca02f5d1-fee8-4201-b5ca-fdc8be506e1e family_id: fcdf4277-ba14-4732-8db5-0369b2c88d8b name: Ada birth_date: '2015-04-10T00:00:00Z' avatar_url: https://cdn.phosra.com/avatars/ada.png created_at: '2026-06-18T14:32:07Z' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': $ref: '#/components/responses/NotFound' '409': $ref: '#/components/responses/Conflict' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/ServerError' x-codeSamples: - lang: JavaScript label: SDK (@phosra/sdk) source: > import { PhosraClient } from "@phosra/sdk"; const phosra = new PhosraClient({ baseUrl: "https://phosra-api-sandbox-production.up.railway.app/api/v1", accessToken: process.env.PHOSRA_API_KEY, }); const result = await phosra.children.create("f0000000-0000-4000-8000-0000000000f1", { name: "Mia", birth_date: "2015-06-01" }); console.log(result); - lang: Shell label: cURL source: > curl -sS -X POST "https://phosra-api-sandbox-production.up.railway.app/api/v1/families/f0000000-0000-4000-8000-0000000000f1/children" \ -H "Authorization: Bearer $PHOSRA_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "name": "Mia", "birth_date": "2015-06-01" }' - lang: Python label: Python source: | import os, requests BASE = "https://phosra-api-sandbox-production.up.railway.app/api/v1" res = requests.post( f"{BASE}/families/f0000000-0000-4000-8000-0000000000f1/children", headers={"Authorization": f"Bearer {os.environ['PHOSRA_API_KEY']}"}, json={ "name": "Mia", "birth_date": "2015-06-01" }, ) print(res.status_code, res.json()) - lang: Go label: Go source: "package main\n\nimport (\n\t\"bytes\"\n\t\"fmt\"\n\t\"io\"\n\t\"net/http\"\n\t\"os\"\n)\n\nfunc main() {\n\tbase := \"https://phosra-api-sandbox-production.up.railway.app/api/v1\"\n\tbody := bytes.NewBufferString(`{\n \"name\": \"Mia\",\n \"birth_date\": \"2015-06-01\"\n}`)\n\treq, _ := http.NewRequest(\"POST\", base+\"/families/f0000000-0000-4000-8000-0000000000f1/children\", body)\n\treq.Header.Set(\"Authorization\", \"Bearer \"+os.Getenv(\"PHOSRA_API_KEY\"))\n\treq.Header.Set(\"Content-Type\", \"application/json\")\n\tresp, err := http.DefaultClient.Do(req)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\tdefer resp.Body.Close()\n\tout, _ := io.ReadAll(resp.Body)\n\tfmt.Println(resp.Status, string(out))\n}\n" components: schemas: Child: type: object properties: id: type: string format: uuid description: Unique identifier for this resource. family_id: type: string format: uuid description: Identifier of the family this resource belongs to. name: type: string description: Human-readable display name. birth_date: type: string format: date-time description: >- Child's date of birth (YYYY-MM-DD). Used to derive the age-appropriate policy. avatar_url: type: string description: URL of the profile image. created_at: type: string format: date-time description: RFC 3339 timestamp of when the resource was created. additionalProperties: true Error: type: object properties: error: type: string description: >- Short, stable, machine-readable error class — matches the HTTP status text (e.g. `Not Found`). message: type: string description: >- Human-readable explanation of what went wrong and, where possible, how to fix it. code: type: integer description: Numeric HTTP status code, duplicated in the body for convenience. description: Standard error envelope returned for every 4xx and 5xx response. example: error: Not Found message: policy not found code: 404 additionalProperties: true responses: BadRequest: description: >- The request was malformed — a required field is missing, a value failed validation, or an identifier is not a well-formed UUID. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Bad Request message: child_name is required code: 400 Unauthorized: description: >- Authentication failed. Send a Bearer WorkOS JWT, or a `phosra_live_`/`phosra_test_` developer API key, in the `Authorization` header. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Unauthorized message: missing or invalid Authorization header code: 401 Forbidden: description: >- Authenticated, but not permitted to act on this resource — for example, you are not a member of the target family. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Forbidden message: not a member of this family code: 403 NotFound: description: No resource matches the identifier supplied in the path. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Not Found message: policy not found code: 404 Conflict: description: >- The request conflicts with the current state of the resource — for example, a resource with the same natural key already exists. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Conflict message: resource already exists code: 409 RateLimited: description: >- Too many requests. Back off and retry after the interval given in the `Retry-After` response header. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Too Many Requests message: rate limit exceeded code: 429 ServerError: description: >- An unexpected error occurred inside Phosra. The request is safe to retry with exponential backoff; contact support if it persists. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Internal Server Error message: internal error code: 500 securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: JWT ````