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API · /tides-api

Tides API

healthy 3,221 Subscribers

High and low tide predictions for thousands of US coastal stations, powered by NOAA CO-OPS. Search the station directory by state or name, pull full station metadata (coordinates and time zone), and get tide predictions as high/low events or an hourly height series for up to seven days, in feet or metres and against the datum of your choice (MLLW, MSL, MHHW and more). Delivered through a fast, reliable API with clear errors for invalid stations. Ideal for boating and sailing, fishing and surfing, ports and logistics, beach and tourism services and coastal planning.

#tides #tide #noaa #ocean #coastal #marine
api.oanor.com/tides-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
837 ms
Server probes · 24h
Subscribers
3,221
active
Total calls
12
last 7 days
status Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 1,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,000 requests/month, 2 req/s
  • Stations, metadata & predictions
  • High/low & hourly tides
  • No credit card
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Basic

€4.00 /month

  • 30,000 calls / month
  • 5 requests / second
  • Hard cap (429 above quota, no overage)
  • 30,000 requests/month, 5 req/s
  • Feet or metres, choice of datum
  • Up to 7-day predictions
  • Commercial use, email support
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Pro

€14.00 /month

  • 150,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 150,000 requests/month, 15 req/s
  • High-volume tide tables
  • 3,400+ US coastal stations
  • Priority email support
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Mega

€44.00 /month

  • 1,000,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,000,000 requests/month, 40 req/s
  • Ports, logistics & app scale
  • Maximum concurrency
  • Priority support
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Built by

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PremiumApi

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Weather API

Real-time weather: current conditions, multi-day forecast, historical weather, marine/wave forecast, astronomy (sun/UV), air quality, geocoding and timezone.

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Frequently asked questions

Quick answers about pricing, quotas, and integration.

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

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