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API · /hash-api

Hash API

healthy 4,792 Subscribers

Compute cryptographic hashes (MD5, SHA-1, SHA-256/384/512, SHA-3, RIPEMD-160) in hex or base64, generate HMAC signatures for webhook and message authentication, and mint v4 UUIDs. All server-side and deterministic. Handy for integrity checks, signing, cache keys, deduplication and id generation.

#hash #md5 #sha256 #hmac #uuid #crypto #dev-tools
api.oanor.com/hash-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/hash-api/openapi.json
/api/hash-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
71 ms
Server probes · 24h
Subscribers
4,792
active
Total calls
27
last 7 days
status Full status page → · 27 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 8,000 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 8,000 hashes/month at 3 req/s
  • MD5, SHA-1/256/512 in hex
  • No credit card
  • Personal/testing use only
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Basic

€4.00 /month

  • 150,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 150,000 hashes/month at 15 req/s
  • All algorithms incl. SHA-3 & RIPEMD-160
  • HMAC signing + base64 output
  • Commercial use allowed
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Pro

€14.00 /month

  • 750,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 750,000 hashes/month at 50 req/s
  • Batch hashing + v4 UUID minting
  • Email support
  • 99.9% uptime target
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Mega

€39.00 /month

  • 4,000,000 calls / month
  • 200 requests / second
  • Hard cap (429 above quota, no overage)
  • 4,000,000 hashes/month at 200 req/s
  • Priority queue + bulk batch endpoints
  • 99.95% SLA
  • Priority support
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Built by

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PremiumApi

Related APIs

Other APIs with overlapping tags.

Bcrypt API

Hash and verify passwords with bcrypt, server-side. Generate a salted bcrypt hash at a cost factor you choose (4–14), check a plaintext password against an existing hash, or inspect a hash to read its bcrypt version, cost factor and salt. Fully compatible with bcrypt hashes from PHP ($2y$), Node, Python and others, so you can verify and migrate existing credentials. Pure server-side computation with no third-party upstream, so it is always available — and it offloads the deliberately CPU-intensive hashing work from your own servers. Ideal for adding password authentication, credential migration, auth tooling, testing and no-code backends.

api.oanor.com/bcrypt-api

UUID API

A fast, fully-local identifier-generation toolkit: create UUID v4 (random), v7 (time-ordered and lexicographically sortable), v3 and v5 (name-based, deterministic via MD5 and SHA-1 over a namespace plus name) and the nil UUID; generate ULIDs (sortable, Crockford base32); generate nanoids (URL-safe, with custom alphabet and size); and validate any UUID, reporting its version and variant. Every endpoint accepts input via the query string or the request body. Built on Node crypto, no third-party upstream, so responses are instant and always available. Ideal for databases and primary keys, distributed systems, idempotency and correlation keys, and general developer tooling.

api.oanor.com/uuid-api

Crypto API

Live cryptocurrency market data: prices, top coins & markets, price/OHLC charts, historical snapshots, trending coins, global stats, exchanges and categories.

api.oanor.com/crypto-api

Astronomy API

A fast, fully-local astronomy and ephemeris engine: compute the equatorial (right-ascension/declination) and horizontal (azimuth/altitude) positions of the Sun, Moon and all planets for any observer and moment, get precise rise, set and transit (culmination) times for any body, read detailed lunar state (phase angle, named phase, illuminated fraction, apparent magnitude, geocentric distance, age since the last new moon and the dates of the next new/first-quarter/full/last-quarter moons), and list the exact equinoxes and solstices of any year. Every endpoint accepts input via the query string or the request body. Pure server-side computation (no third-party upstream), so responses are instant and always available. Ideal for weather and tide apps, astrophotography planners, calendars, solar/energy tools, Islamic and lunar calendars, and education.

api.oanor.com/astronomy-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Hash API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Hash API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Hash API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Hash API cost?
Hash API has a free tier with 100 calls / month. Paid plans start at €4.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Hash API GDPR-compliant?
All requests to Hash API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/hash-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/hash-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/hash-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/hash-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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