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Credits aren’t on sale yet. Pro and top-ups open together, once the whole flow works end-to-end. The calendar and the free API stay free regardless. Get notified →
API credit top-ups
Ran out of monthly quota mid-job? Top up. Credits never expire, roll across plans, and are consumed only after your monthly allowance is used.
$5
25,000 requests
Coming soon
$15
100,000 requests
Coming soon
$40
300,000 requests
Coming soon
How credits work
Order of consumption: monthly quota → grace overage → credits → 402. We never hard-stop you at the boundary; you get a warning at 80%, a grace overage past 100%, and only then a
Not every call costs the same: a Core list request is 1 credit, the per-event run-up series is 5, and a bulk export is 50. Every response tells you what it cost in the
Credits are a one-time purchase, not a subscription. They attach to your API key and survive plan changes.
402 with these top-up options.Not every call costs the same: a Core list request is 1 credit, the per-event run-up series is 5, and a bulk export is 50. Every response tells you what it cost in the
X-Credits-Cost header.Credits are a one-time purchase, not a subscription. They attach to your API key and survive plan changes.
Need a subscription instead? See plans → · Already have a key? Your account →
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© 2026 pdufa.bio. All rights reserved.
Not affiliated with or endorsed by the FDA. pdufa.bio is an independent publication with no affiliation with, endorsement by, sponsorship by, or connection to the U.S. Food and Drug Administration or any other government agency. “FDA”, “PDUFA” and all company, drug and ticker names are used descriptively and remain the property of their respective owners.
Informational and educational purposes only. Not investment advice. Nothing on this page is investment, legal, tax or medical advice, or an offer or solicitation to buy or sell any security. pdufa.bio is not a registered investment adviser or broker-dealer and does not recommend trades or publish individual-drug approval probabilities. Verify every date and outcome against primary FDA, SEC or company filings. Data is provided as is, without warranty of any kind, and past behaviour does not predict future outcomes.
© 2026 pdufa.bio. All rights reserved.