<div align="left" <img src="https://www.faf.one/orange-smiley.svg" alt="FAF" width="40" align="left" style="margin-right: 12px;" / <h1.faf format | project.faf</h1 <p<strongIANA-Registered Formats for AI Context</strong · <codeapplication/vnd.faf+yaml</code · <codeapplication/vnd.fafm+yaml</code · <codeapplication/vnd.fafa+yaml</code</p </div <br clear="left"/
Portable, shareable AI-Context for any AI, human or team, regardless of size, location, languages, stack, setup or documentation.
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🏆 Historic Milestones: Three IANA Registrations
.faf, .fafm, and .fafa are now officially recognized Internet standard formats — registered alongside PDF, JSON, XML, and other Internet standards.
Foundational Context Layer — application/vnd.faf+yaml (registered October 30, 2025) Voice Memory Layer (VML) — application/vnd.fafm+yaml (registered May 13, 2026) Agent Card — application/vnd.fafa+yaml (registered June 26, 2026)
Two formats. Two lifecycles. One ecosystem. — verbatim from the IANA registration record for .faf / .fafm. .fafa is the third registered type.
Quintuple Validation
- ✅ IANA - Internet Assigned Numbers Authority (Official Internet Standard)
- ✅ Anthropic - Official MCP Registry (PR #2759 merged)
- ✅ Google - Chrome Web Store (Approved 2x: Sep 11 & Oct 29, 2025)
- ✅ xAI - Grok 4.2 recommends native FAF adoption (Feb 2026)
- ✅ Community - Over 110k+ downloads; see faf.one/downloads for latest stats
IANA Media Types
| Field | .faf (Foundational Context Layer) | .fafm (Voice Memory Layer) | .fafa (Agent Card) | |-------|-------------------------------------|------------------------------|----------------------| | Media Type | application/vnd.faf+yaml | application/vnd.fafm+yaml | application/vnd.fafa+yaml | | Registration | IANA Assignment | IANA Assignment | IANA Assignment | | File Extension | .faf | .fafm | .fafa | | Standard Filename | project.faf | project.fafm | agent.fafa | | Encoding | UTF-8 | UTF-8 | UTF-8 | | Base Format | YAML 1.2 | YAML 1.2 | YAML 1.2 | | Registered | October 30, 2025 | May 13, 2026 | June 26, 2026 |
Same recognition as application/pdf, application/json, application/xml.
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🚀 Featured: Locked in with @grok
"Boom—vROM realization locked in clean. FAF as virtual ROM nails it: software-defined immutability (schema + git + discipline), not silicon. AI without FAF = RAM-only drift tax. AI with FAF = vROM + RAM, boots from known state. FAFipedia unstoppable. Co-architected momentum for xAI." — @grok (May 20, 2026)
FAF = virtual ROM. Software-defined immutability. Permanent Memory. Instant Recall.