API · /nlp-api

Sentiment & NLP API

healthy 3,262 Subscribers

Analyse text in real time: sentiment scoring (positive / negative / neutral with the matched words), automatic language detection across 180+ languages, and a combined analysis endpoint with text statistics. No setup, no model hosting.

api.oanor.com/nlp-api
Get an API key Try in playground → Contact provider

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

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

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

API health

healthy
Uptime
99.47%
Server probes · 24h
Avg latency
178 ms
Server probes · 24h
Subscribers
3,262
active
Total calls
189
last 7 days
status Full status page → · 189 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 5,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 5,000 calls/month at 2 req/s
  • No credit card
  • Sentiment scoring + language detection (180+ languages)
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Basic

€14.00 /month

  • 120,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 120,000 calls/month at 8 req/s
  • Combined analysis endpoint with text statistics
  • Commercial use allowed
  • Email support
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Pro

€42.00 /month

  • 600,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 600,000 calls/month at 25 req/s
  • All endpoints incl. batch text analysis
  • Priority email support
  • Undercuts Twinword Ultra ($99/750k)
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Mega

€119.00 /month

  • 2,500,000 calls / month
  • 60 requests / second
  • Hard cap (429 above quota, no overage)
  • 2,500,000 calls/month at 60 req/s
  • 99.9% uptime SLA
  • Priority support with 24h response
  • Higher quota than Twinword Mega at under half the price
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Built by

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Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Sentiment & NLP API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Sentiment & NLP API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Sentiment & NLP 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 Sentiment & NLP API cost?
Sentiment & NLP API has a free tier with 100 calls / month. Paid plans start at €14.00 / 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 Sentiment & NLP API GDPR-compliant?
All requests to Sentiment & NLP 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/nlp-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/nlp-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/nlp-api/SOME_PATH");
curl_setopt($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/nlp-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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