
Monapi
IP & Domain Anomaly API Data for your Business
Monapi launched on December 5, 2018 with 8 votes, #838 of 2,148 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 7 years on.
What it does
Lookup Threat Intel and Blacklists for IP and Domains, Prevent bad signups, get Geo Location & ASN Data.
Self-hosted decision API: allow, challenge or block — with score, signals and evidence. Open source, GDPR-friendly, IPv4+IPv6.
monapi is a self-hosted decision API: IP, domain or email in, explainable decision out — with score, signals and evidence. No US service, no third-country transfer, no black box. Thresholds and weights are policy, not physics — configurable per profile. The API is plain HTTP. The packages exist so you skip the timeout, fail-open and type handling every integrator writes from scratch — and so an agent can use the same decision as a tool, including one that explains its own verdicts. Every request to IPQualityScore, Sift or Castle is a third-country transfer — with SCC paperwork and a Transfer Impact Assessment. monapi runs on your infrastructure: feeds and the GeoIP database are held…from monapi.io
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