01 / PICK
Choose the domain
Find an endpoint in the catalog — for example, fake users.
/api/users Developer data utility
Random data APIs, built like developer tools.
Useful mock fixtures and curated reference data with parameters that genuinely work. Pick an endpoint, shape the response and fetch clean JSON — without provisioning anything.
{
"data": [
{
"fullName": "Milford Schimmel",
"email": "milford.schimmel@example.com",
"age": 71
},
{
"fullName": "Jonas Torp",
"email": "jonas.torp@example.org",
"age": 55
}
],
"meta": {
"endpoint": "users",
"count": 2,
"seed": 7,
"locale": "en",
"params": {
"minAge": 18,
"maxAge": 80
},
"generatedAt": "2026-07-30T15:14:08.000Z"
}
}
Actual API response. seed=7 returns these records every time.
- Endpoints
- 159
- Routes
- 324
- Mock APIs
- 82
- Real APIs
- 77
- Data locales
- 8
- Holiday countries
- 61
- Requests / minute
- 60
- Requests / day
- 10,000
Verified by contract and source
Every documented parameter is contract-tested. Real endpoints cite authoritative material such as ISO 4217, the IANA Time Zone Database and national statutory holiday rules.
Quick start
From empty file to useful fixture
02 / SHAPE
Set meaningful parameters
Control count, locale, ranges and projected fields. The documented controls are the real contract.
?count=25&locale=de&minAge=21 03 / FETCH
Use it from any stack
Browser, backend, curl or CI — responses are CORS-open and use a consistent envelope.
await fetch(url).then(r => r.json()) Proven starting points
Start with a high-value endpoint
Public holidays
/api/holidays Real public holidays for 61 countries, computed from official national rules — list a year, check a date, or get the next upcoming holiday.
/api/holidays?country=DK&year=2026 Users
/api/users Complete fake people — name, age-consistent birth date, email, phone, job and address — with working filters for gender, age range and email domain.
/api/users?count=3&seed=42 Placeholder images
/api/images Hotlinkable SVG placeholder images at any size from 8 to 4000 px — custom label, colors and an optional gradient. Deterministic and crisp at every scale.
/api/images/placeholder Browse by domain
9 focused API categories
People
8 endpoints
Fake people, names and contact details for fixtures and demos.
/addresses · /animals · /emails · /jobs
Geo & Reference
21 endpoints
Countries, cities, airports and currencies, plus safe coordinate and flight fixtures.
/address-formats · /airports · /cities · /coordinate-formats
Date & Time
11 endpoints
Public holidays, business-day math, current time, random dates and calendar-event fixtures.
/bookings · /business-days · /calendar-events · /date-info
Internet & Devices
19 endpoints
IPv4/IPv6 tools, DNS fixtures, IP/TLD references, user agents, UUIDs and passwords.
/crawlers · /dns-record-types · /dns-records · /email-messages
Text & Content
18 endpoints
Placeholder text, conversations, support tickets, tasks, markdown and reviews.
/books · /collation · /conversations · /foods
Commerce & Finance
15 endpoints
Products, orders, inventory, returns, subscriptions, shipments and finance fixtures.
/cloud-costs · /companies · /credit-cards · /ibans
Design & Media
10 endpoints
Colors, placeholder images, avatars and file metadata.
/avatars · /barcodes · /charts · /color-contrast
Developer Tools
53 endpoints
HTTP/Unicode standards, CI and deployment fixtures, telemetry, queues, webhooks and feature flags.
/access-control · /analytics-sessions · /audit-logs · /auth-sessions
Numbers & Chance
4 endpoints
Random numbers, dice notation and weighted decisions.
/dice · /distributions · /numbers · /random
Platform guarantees
Predictable behavior before decoration
No auth ceremony
No signup, tokens or paywall. Compose a URL and fetch it from any stack.
Every parameter works
Filters filter, ranges constrain and unknown values fail clearly instead of returning the wrong record.
Reproducible fixtures
The same seed and resolved inputs return the same data, including explicit replay windows for time-shaped mocks.
Honest provenance
Generated fixtures are labelled mock. Curated facts are labelled real and carry their source.
Reference
Common implementation questions
Is randomapi.dev really free?
Yes. Every endpoint is free to use with no API key, no signup and no credit card. Generous per-IP rate limits (60 requests/minute, 10,000/day) keep the platform healthy.
What's the difference between mock and real data?
Every endpoint is badged. MOCK endpoints return generated, fake data (users, products, passwords) — perfect for test fixtures. REAL endpoints return authoritative, curated facts (public holidays, countries, currencies, HTTP statuses) you can rely on.
Can I get the same data every time?
Yes — pass a seed and the same resolved parameters to a mock endpoint and the exact same records come back. Time-window fixtures echo resolved dates in meta.params so you can replay them explicitly on another day.
Which formats are supported?
JSON (default, with a consistent data/meta envelope), NDJSON for streaming pipelines, and CSV for spreadsheets. Add unwrap=true for raw JSON without the envelope.
Can I use it in production?
Mock endpoints are designed for development, testing and demos. Real endpoints (holidays, countries, currencies…) serve curated reference data suitable for light production use within the rate limits.