Free, open-source REST API that generates rich, realistic synthetic user records (name, location, login, contact, picture, identification, nationality) for application testing, prototyping, and demo content. Powered by the open-source Randomuser.me-Node project under the MIT license and funded by community donations. Single unauthenticated GET endpoint, seedable for reproducibility, with multi-format output (JSON, PrettyJSON, CSV, YAML, XML).
URL: Visit APIs.json URL
Run: Capabilities Using Naftiko
- Test Data, Synthetic Data, Mock Data, Open Source, Public API, Free API
- Created: 2026-05-28
- Modified: 2026-05-29
- x-type: opensource
- x-tier: 2 (enriched via full pipeline)
- License: MIT
- Canonical source: RandomAPI/Randomuser.me-Node
Single GET endpoint that returns a configurable batch of synthetic users. Supports up to 5000 results per request, multi-nationality mixing, field include/exclude projection, deterministic seeds with pagination, multiple serialization formats, and path-pinned versioning (1.0 - 1.4).
Human URL: https://randomuser.me
Base URL: https://randomuser.me/api
- Test Data, Synthetic Data
- Documentation
- APIReference
- OpenAPI
- JSONSchema - User Schema
- JSONSchema - User Response Schema
- JSONStructure
- JSONLD
- Example - Generate Users
- Example - Paginated Seeded Request
- Example - CSV Export with Download Flag
- RateLimits
- Plans
- Authentication - None (Public, Unauthenticated)
- Versioning
- ChangeLog
- Website
- Documentation
- ChangeLog
- GitHubOrganization
- GitHubRepository - Randomuser.me-Node (Canonical Source)
- GitHubRepository - Offline RandomAPI npm module
- GitHubRepository - Offline User Generation Module
- X
- Pricing - Free (Donation-Funded)
- Support
- PublicAPIsListing
- SpectralRules
- Vocabulary
- NaftikoCapability - RandomUser Users (Shared)
- NaftikoCapability - Generate Deterministic Test Fixtures
- NaftikoCapability - Build a Multi-Nationality User Cohort
- Tools - MCP Server (pipeworx-io)
- Tools - MCP Server (hugo-85)
- Tools - MCP Server (rycid)
| Name | Description |
|---|---|
| Free and unauthenticated | No API key, no signup, no per-key quotas; just hit the endpoint. |
| Seedable reproducibility | The same (seed, page, results, version) tuple always returns the same users. |
| Multi-nationality cohort | Mix 21 nationalities (v1.4) so addresses, IDs, and phone formats stay locale-appropriate. |
| Field projection | Use inc / exc to keep payloads small and skip CPU-heavy fields like login. |
| Multi-format output | JSON, PrettyJSON, CSV, YAML, XML; plus JSONP via callback. |
| Path-pinned versioning | Lock requests to /1.0/ through /1.4/ so upstream releases never break your fixtures. |
| Pre-generated portrait images | Three resolutions (large, medium, thumbnail) hosted on randomuser.me. |
| Open source | MIT-licensed Node.js codebase; self-hostable if you need air-gapped operation. |
| Name | Description |
|---|---|
| Frontend prototyping | Populate UI mockups, design comps, and Storybook fixtures with realistic users. |
| Test data for QA / CI | Generate seeded fixtures for unit, integration, and snapshot tests. |
| Load testing | Bulk-generate up to 5000 users per request to seed performance test runs. |
| i18n / localization | Request specific nationalities to validate address parsing, phone formats, and Unicode rendering. |
| Demo content | Populate sales demos, sandbox environments, and tutorials with realistic-looking accounts. |
| Avatar placeholders | Use the picture URLs as throwaway avatars for prototyping. |
| Name | Description |
|---|---|
| jQuery / AJAX | Documented usage with $.ajax for browser-side fetches. |
| Node.js | Use directly from server-side JavaScript; offline module available. |
| Photoshop Extension | Pull synthetic users straight into design comps (legacy extension). |
| Sketch Extension | Sketch plugin for filling layers with random users (legacy). |
| Model Context Protocol | Multiple community MCP servers expose the API to LLM agents (pipeworx-io, hugo-85, rycid). |
| Name | Description |
|---|---|
| Hosted API | Free, public, donation-funded endpoint at randomuser.me/api. |
| Offline npm module | Generate the same shape of users without network calls using the offline RandomAPI module. |
| Self-hosted | Clone Randomuser.me-Node and run the generator inside your own infrastructure. |
Machine-readable API specifications organized by format.
Naftiko capabilities organized as shared per-API definitions composed into customer-facing workflows.
- RandomUser Users - 2 operations for synthetic user generation
| Workflow | APIs Combined | Persona |
|---|---|---|
| Generate Deterministic Test Fixtures | randomuser | QA / Test Engineering |
| Build a Multi-Nationality User Cohort | randomuser | i18n / Localization Engineering |
- RandomUser Vocabulary - Controlled vocabulary covering 2 operations, 3 entities, 12 request parameters, and 21 supported nationalities (v1.4) across the operational dimension.
- RandomUser Spectral Rules - 10 rules enforcing operationId casing, Title Case summaries, tag presence, parameter enumerations, results cap, no-auth posture, HTTPS servers, User schema presence, and Microcks mocking metadata.
- Plans - Free, donation-funded, no commercial tier.
- Rate Limits - No documented per-key or per-IP rate cap; hard 5000 results per request.
FN: Kin Lane
Email: kin@apievangelist.com