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Frequently asked questions
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Quota & billing
What happens when I hit my monthly limit?
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When does my quota reset?
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Can I buy extra requests mid-month?
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Do you offer annual billing?
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Can I downgrade or cancel at any time?
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Is there a free trial of paid tiers?
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Is quota shared across products?
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API behaviour
What does enrichmentPending: true mean?
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Do retry requests count toward my quota?
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Are bulk lookups counted individually?
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What quota headers does the API return?
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What happens if I exceed my rate limit?
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How do I authenticate?
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Do you have SDKs or client libraries?
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What is the difference between dataAsOf and checkedAt?
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Postcode Intelligence
Which postcodes are covered?
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Can I submit just the outward code rather than a full postcode?
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How current is the postcode data?
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Do all plans include every postcode signal?
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Can I look up by coordinates instead of a postcode?
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Can I get every postcode within a radius of a point?
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How do I use the async bulk endpoint?
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Why are some postcode signals null?
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How accurate is the council tax band, and why does it sometimes show a range like lower: "C", upper: "D"?
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Vehicle Intelligence
Which vehicles are covered?
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Do you return individual MOT test records?
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How often is vehicle data refreshed?
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What is the buy recommendation based on?
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What does "possible_clocking" mean exactly?
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What is ULEZ compliance and how is it determined?
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Are electric and hybrid vehicles covered?
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Account & security
Where do I find my API key?
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Can I regenerate my API key?
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What happens to my API key if I downgrade?
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What happens if my payment fails?
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What data does Zyfy store about me?
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