Fidro is a fraud detection API that scores emails, IPs and networks in one call to flag fake signups, odd logins and stolen cards, returning allow, challenge or block, with a free plan of 200 validations a month 1. Its official MCP server door is listed in our index, so it can be called directly by agents 1.
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Fidrofidro.iowebsite read, tools not yet checked
One API call scores the email, IP and network of a signup, login or payment and returns allow, challenge or block, with a free plan and responses under 200ms 1.
official:MCP server · Fidro
Sources
- 1Fidro: Fraud Detection API for Fake Signups and Stolen Cardsfidro.io · read 2026-10-29
Left out: Fedora Project Wiki, because each one's own page says it is retired or discontinued.
For agents: the 10 actions behind this answer
· Fidro website read, tools not yet checked
One API call scores the email, IP and network, remembers repeat signups and odd logins, then tells you to allow, challenge or block. Free plan, under 200ms.
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