Quotas and limits in Yandex Search API
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Updated at February 18, 2025
Yandex Search API has the following limits:
- Quotas are organizational restrictions that can be changed by technical support on request.
- Limits are technical limitations due to Yandex Cloud architectural features. The limits cannot be changed.
Quotas
| Type of limit | Value |
|---|---|
| API v1 | |
| Number of synchronous requests per day | 100 000Daily limit resets at 00:00:00 GMT (00:03:00 UTC+3) |
Number of synchronous requests per hour (hourly_limits) |
Depends on the time of day1From 00:00:00 to 00:59:59: 30% of the daily quotaFrom 00:59:59 to 03:59:59: 40% of the daily quotaFrom 04:00:00 to 07:59:59: 60% of the daily quotaFrom 08:00:00 to 08:59:59: 40% of the daily quota From 09:00:00 to 09:59:59: 30% of the daily quota From 10:00:00 to 10:59:59: 20% of the daily quota From 11:00:00 to 22:59:59: 10% of the daily quota From 23:00:00 to 23:59:59: 20% of the daily quota |
Number of synchronous requests per second (rps_restriction) |
Depends on the number of requests per hour: rps_restriction = hourly_limits/3,420 |
| API v2 | |
| Number of synchronous requests per hour | 10,000 |
| Number of synchronous requests per second | 10 |
| Number of deferred requests per hour | 150 000 |
| Number of deferred requests per second | 50 |
| Number of requests, per second, for results of a deferred request | 50 |
1 The time zone is UTC+3.
For example, if the quota is 100,000 requests per day, you can send a maximum of 10,000 requests per hour from 11:00:00 to 22:59:59 (approximately 3 requests per second) and a maximum of 40,000 requests (approximately 11 requests per second) from 08:00:00 to 08:59:59.
If you increase your daily quota of requests to 200,000, you can send a maximum of 20,000 requests per hour from 11:00:00 to 22:59:59 (approximately six requests per second) and a maximum of 80,000 requests (approximately 22 requests per second) from 08:00:00 to 08:59:59.
Limits
| Type of limit | Value |
|---|---|
| Number of results returned | Up to 250 |
| Maximum request length | 400 characters |
| Maximum number of words per request | 40 words |
| Minimum processing time for a request in deferred mode | 5 minutes |