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What is the query limit for Yahoo's Finance API? Or where is the documentation that describes the limit?

For all of Yahoo's API's I've only been able to find general documentation for all API's. If you know where the documentation is for Yahoo's Finance API that'd also be appreciated. (I've been searching for a few days on Google, and on Yahoo's API sites, finally turned to friends at SO)

Thanks!

Don P
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  • possible duplicate of [Does Yahoo finance have data request upper limit. Is there an alternative or workaround?](http://stackoverflow.com/questions/5888662/does-yahoo-finance-have-data-request-upper-limit-is-there-an-alternative-or-wor) The answer at that link says that no limit was mentioned. However, this could be old information; in which case this question should remain open. – mechanical_meat Feb 19 '12 at 04:08

4 Answers4

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UPDATE:

Rate limits in YQL are based on your authentication. If you use IP-based authentication, then you are limited to 2,000 calls/hour/IP to the public YQL Web service URL (/v1/public/) or 20,000 calls/hour/IP to the private YQL Web service URL (/v1/yql/) that requires OAuth authorization. See the YQL Web Service URLs for the public and private URLs. Applications (identified by an Access Key) are limited to 100,000 calls/day/key*.

However, in order to make sure the service is available for everyone we ask that you don't call YQL more than 0.2 times/second or 1,000 times/hour for IP authenticated users and 2.7 times/second or 10,000 times/hour.

Raphael C
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    there is no finance part of the question that I can see. the only question is about the query limit and Yahoo's API documentation. – Raphael C Feb 11 '14 at 14:53
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See the Yahoo Query Language Usage Information and Limits page. This is for all of the YQL APIs, not just the Finance API.

YQL Rate Limits:

YQL Rate Limits

What this means:

  • Using the Public API (without authentication), you are limited to 2,000 requests per hour per IP (or up to a total of 48,000 requests a day).
  • Using the Private API (with OAuth authentication using an API Key), you are limited to 20,000 requests per hour per IP and you are limited to 100,000 requests per day per API Key.

The above answer was originally posted here by me.

Kody
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Yahoo's YQL allows you to query Yahoo! Finance data. Their usage limits are as follows:

  • Unauthenticated: up to 1,000 calls/day
  • Authenticated: up to 100,000 calls/day

See Yahoo's Query language FAQ for more details at http://developer.yahoo.com/yql/faq/

HBCondo
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4

A 2020 update:

Garo
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  • I found this question by searching for the docs about this API. If someone knows where I can find them please add them as a comment below. (I assume I'm not the only one that will end up here searching for this). At the moment the current version of the API is 7 and I use code I can find online to find out all possible calls and their usage. – Garo Nov 14 '20 at 23:55