Trusted Automated eXchange of Intelligence Information (TAXII) is a collection of services and message exchanges that enable the sharing of cyber threat intelligence across product, service, and organizational boundaries. It is designed to support the exchange of CTI represented in STIX, but is not limited to STIX. TAXII defines an API that aligns with common sharing models, such as hub-and-spoke, peer-to-peer, and subscribe/publish. TAXII is not a public collection of threat intelligence feeds, a threat intelligence sharing organization, or a language used to represent security information. Those are possible descriptions of STIX, which is a complementary standard to TAXII. References: STIX and TAXII Approved as OASIS Standards to Enable Automated Exchange of Cyber Threat Intelligence, STIX V2.1 and TAXII V2.1 OASIS Standards are published, What is STIX/TAXII? | Cloudflare, What is STIX / TAXII? Learn about the industry standards for Cyber …, What are STIX/TAXII Standards I Resources I Anomali