Check if two strings are anagrams
API · /anagram-api
Anagram API
healthy
4,887 Subscribers
Work with anagrams. The check endpoint tells you whether two strings are anagrams of each other — by default ignoring case, spaces and punctuation, so "Dormitory" and "Dirty Room" match. The signature endpoint returns the canonical sorted-letter key for a string; two strings are anagrams exactly when their signatures are equal, which makes the signature ideal for indexing and bucketing. The group endpoint takes a list of words and groups them into their anagram sets. Perfect for word games and puzzles, dictionaries and search, and de-duplicating reordered strings. No word list needed — it is pure letter analysis. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 4 endpoints. Distinct from spelling, similarity and dictionary APIs.
api.oanor.com/anagram-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 78 ms
- Server probes · 24h
- Subscribers
- 4,887
- active
- Total calls
- 76
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 1,125 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- 1,125 calls/month
- 2 req/sec
- Check + signature + group
- No credit card
Starter
€1.65 /month
- 9,650 calls / month
- 8 requests / second
- Hard cap (429 above quota, no overage)
- 9.65k calls/month
- 8 req/sec
- Case / space / punctuation options
- Email support
Pro
€21.55 /month
- 147,500 calls / month
- 20 requests / second
- Hard cap (429 above quota, no overage)
- 147.5k calls/month
- 20 req/sec
- Game / dictionary pipelines
- Priority support
Mega
€59.55 /month
- 780,000 calls / month
- 50 requests / second
- Hard cap (429 above quota, no overage)
- 780k calls/month
- 50 req/sec
- Platform scale
- Dedicated SLA
Built by
Related APIs
Other APIs with overlapping tags.
Scrabble API
Score words by their letter tiles for Scrabble and Words With Friends. The score endpoint adds up the face value of each tile in a word — with the per-letter breakdown — and the values endpoint returns the point value of every letter for the chosen ruleset. Blank tiles (? _ *) count as zero. Both the standard English Scrabble distribution and the Words With Friends distribution are built in. Perfect for word-game apps and bots, puzzle and quiz tools, teaching and leaderboards. Note: this is the raw tile value — double/triple letter and word squares and the 50-point bingo bonus are not applied. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. Distinct from dictionary, spelling and text-statistics APIs.
api.oanor.com/scrabble-api
Keyboard Layout API
Re-map text between keyboard layouts — the fix for text typed with the keyboard set to the wrong layout. The remap endpoint takes text, a source layout and a target layout, and rewrites each character to the one produced by the same physical key on the other layout. So text accidentally typed on a Dvorak-configured keyboard while you meant QWERTY (or the reverse) is recovered exactly, and because the mapping is position-preserving it round-trips perfectly. It supports QWERTY (US), Dvorak and Colemak, including the shifted symbols, and leaves characters that are not on a remappable key (spaces and accents) untouched. The layouts endpoint returns the full key map for each layout. Everything is computed locally and deterministically, so it is instant and private. Ideal for fixing wrong-layout typing, building text editors and IME tools, layout-learning aids, and cross-layout search. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This remaps between keyboard layouts; for classical ciphers (Caesar, ROT13, Morse) use a cipher API.
api.oanor.com/keyboardlayout-api
Entropy API
Measure the information content of text. The analyze endpoint computes the Shannon entropy in bits per symbol, the total information in bits and bytes, the maximum possible entropy for the alphabet that was actually used, and a normalized 0–1 score that says how uniform (random-looking) the distribution is — over Unicode code points or raw UTF-8 bytes. The frequency endpoint returns the full character-frequency distribution, most common symbol first, with counts and percentages, showing control characters escaped and bytes as hex. It is exact, deterministic and runs entirely locally with no network calls, so it is instant and private. Ideal for randomness and password-quality checks, estimating how compressible data is, language and classical-cipher analysis, spotting low-variety or repetitive input, and feature extraction for text classification. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This measures information content; for password-strength scoring use a password API, for number statistics use a statistics API, and for grapheme/character counts use a text-segmentation API.
api.oanor.com/entropy-api
N-gram API
Generate n-grams from text, with frequency counts — entirely locally. The ngrams endpoint breaks text into contiguous sequences of n tokens and returns each distinct n-gram with how often it occurs, ranked by frequency: word n-grams (unigrams, bigrams, trigrams and beyond) for phrase and collocation analysis, or character n-grams (shingles) for fuzzy matching, language detection and indexing. The range endpoint produces every size from a minimum to a maximum in a single call (for example 1–3 grams), which is exactly what you need to build feature vectors. Choose word or character mode, whether to lower-case first, and a top-N limit to keep only the most frequent. Word tokenization is Unicode-aware and keeps internal apostrophes and hyphens (don't, well-known) as single tokens. Everything runs locally and deterministically, so it is fast and private. Ideal for text mining and NLP feature extraction, language modelling and autocomplete, search indexing and shingling, plagiarism and similarity detection, and keyword and collocation analysis. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This produces n-grams and counts; for extractive summaries and keywords use a summarize API and for grapheme/character counting use a text-segmentation API.
api.oanor.com/ngram-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Anagram API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Anagram API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Anagram 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 Anagram API cost?
Anagram API has a free tier with 100 calls / month. Paid plans start at €1.65 / 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 Anagram API GDPR-compliant?
All requests to Anagram 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/anagram-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/anagram-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/anagram-api/SOME_PATH");
curl_setopt($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/anagram-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
Sign in to rate.
No reviews yet.
Discussion
Ask questions, share usage tips, get answers from the provider and other developers. Public — anyone can read.
Sign in to start a thread or reply.
Sign inNew thread
📌 Pinned
🔒 Locked
·
·
·
-
Provider answer
🔒 This thread is locked — no new replies.
-
·
- No threads yet — start the discussion.
Support
Private 1:1 support with the provider — billing questions, integration issues, account problems. Only you and the provider team can see these threads.
Sign in to open a support ticket.
Sign inOpen new ticket
Describe what you need help with. The provider team gets an email and replies on the ticket page.
-
·
Urgent - No tickets yet for this API.