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Housing Market APIAuthentication & Security

Is IP whitelisting supported?

Yes. For additional security, API requests can be restricted to registered server IP addresses.

Yes.

For additional security, API requests can be restricted to registered server IP addresses.

Last updated August 19, 2026

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How do I authenticate?Every request requires an API key supplied in the x-api-key HTTP header. Keep the key private and server-side only.
How do I obtain an API key?API access is issued individually to approved partners. Contact Housing Market Group to request credentials, partner approval, and IP registration.

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