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API rate limiting questions & SSL/TLS issues

asked 2021-12-17 13:43:58 -0600

updated 2021-12-17 13:56:51 -0600

URL:https://smlsa.paragonrels.com/OData/S...

First, would it be possible to get more specifics around the rate limits for this API? We were told the rate limit is currently 5000 requests per 5 minute period.

  • Are there any requests per second rate limits?
  • Is there any sort of hourly limit on top of the 5000 requests per 5 minute period?
  • And is that limit per MLS, or will the limit apply to any and all Paragon API connections we have as a whole? We work with 90 or so MLSs that use the Paragon RETS feeds and are curious how that limit would or would not scale over time if more MLSs transition to using the API over the RETS feeds.

Second, our developers ran into some SSL/TLS issues when attempting to access the data via our servers. SSLLABS.com shows this API has an issue with any Windows OS below Windows 10, which equates to 2016/2019 servers. Does anyone know who I would contact to ask about adding support for Windows 2012 R2 Servers on TLS 1.2 (especially considering Microsoft has extended support until Oct 10, 2023 for Windows Server 2012 R2)?

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This may help with the TLS issue:

https://support.microsoft.com/en-us/topic/update-to-enable-tls-1-1-and-tls-1-2-as-default-secure-protocols-in-winhttp-in-windows-c4bd73d2-31d7-761e-0178-11268bb10392
bwolven gravatar imagebwolven ( 2021-12-17 14:44:06 -0600 )edit

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answered 2021-12-17 16:25:26 -0600

Rate limit: 5000 requests per 5 minutes, per IP. Then IP is blocked for several hours. It only applies to pulling listing photos via the URLs provided in the Media resource. Limits were implemented to address abuse and to ensure stability of systems for our customers.

SSL/TLS: Current TLS cipher suite is dictated to us by our security team and we cannot adjust it.

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Thank you for your response! Our developers had a few more questions I was hoping you could answer:

  1. If possible could you add "@odata.nextLink" to the response so that we could handle pagination through that method?

  2. Who would be the best person to reach out to regarding the following issues?

    • It appears underscores were used instead of spaces in many cases, including city names (ex: "Mt_____Olive"). Could those be removed?
    • StandardStatus is null for many listings in the Strategic MLS Alliance feed. Could that be corrected?

Thanks again!

ninalikes gravatar imageninalikes ( 2022-01-05 16:09:22 -0600 )edit
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Asked: 2021-12-17 13:43:58 -0600

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Last updated: Dec 17 '21