{ Schemas.Pub }
Add Schema-
ActivityPub Unofficial JSON Schema
by Data Transfer Initiative • Nov. 6, 2025 • 57 URLs -
AI Conversation History - personal data portability format for exporting AI conversations
Your conversations with your AI tools and services are your personal data.
by Data Transfer Initiative • Nov. 13, 2025 • 1 URL -
ATProto Community Lexicon - Bookmark, Like, Event, RSVP, etc
by admin • Nov. 6, 2025 • 9 URLs -
C2PA Conformance Program
by admin • Feb. 11, 2026 • 5 URLs -
Data Transfer Project: Generic schema for personal data portability
Used by the Data Transfer Project and by services connecting to a DTP server to request personal data access.
by Data Transfer Initiative • Oct. 22, 2025 • 7 URLs -
DomainConnect (DCON) Internet-draft 'settings' schema (Unofficial)
by admin • Nov. 6, 2025 • 1 URL -
Efficient XML Interchange (EXI) Format 1.0 (Second Edition)
- W3C
by admin • Oct. 31, 2025 • 1 URL -
EMMA: Extensible MultiModal Annotation markup language
- W3C
by admin • Oct. 31, 2025 • 1 URL -
Emotion Markup Language (EmotionML) 1.0
- W3C
by admin • Oct. 31, 2025 • 1 URL -
EXI for JSON (EXI4JSON)
- W3C
by admin • Oct. 31, 2025 • 1 URL -
Happenstance AI Personal network API
by admin • March 2, 2026 • 1 URL -
HLink: Link Recognition for the XHTML family
- W3C
by admin • Oct. 31, 2025 • 1 URL -
Icebreaker "Stream" water data schema
by admin • Oct. 22, 2025 • 7 URLs -
Ink Markup Language (InkML)
- W3C
by admin • Oct. 31, 2025 • 1 URL -
JSON-RPC 1.0
by admin • Oct. 22, 2025 • 1 URL -
Model Context Protocol - MCP
by admin • Oct. 22, 2025 • 1 URL -
More Instant Messaging Interoperability (MIMI) message content
by admin • Nov. 4, 2025 • 3 URLs -
OSI - Open Semantic Interchange Ontology Definitions
OSI provides a single JSON- and YAML-based specification that any tool can read and write, addressing the semantic fragmentation common across today's data stack: the same KPI defined differently across tools, teams spending significant effort manually reconciling definitions, and AI agents producing unreliable outputs grounded in inconsistent busi
by admin • June 11, 2026 • 2 URLs -
Personal Data Portability Archive (PDPArchive) format for mail, contacts, calendar, tasks
A standardized archive-suitable format for personal productivity data can help with use cases like backups, third-party access, and simple synchronization (one-way).
by Data Transfer Initiative • June 3, 2026 • 3 URLs -
RFC 9115: An Automatic Certificate Management Environment
- RFC
With the ACME protocol, the holder of a domain name can allow a third party to obtain an X.509 certificate. This is the JSON Schema definition of the CSR template
by admin • Oct. 30, 2025 • 1 URL -
RFC 9321: Signature Validation Token
- RFC
by admin • Oct. 30, 2025 • 1 URL -
RFC9457 - Problem details for HTTP responses
by admin • Oct. 22, 2025 • 1 URL -
Schemas.Pub Manifest
A JSON schema for Schemas.Pub manifests
by Data Transfer Initiative • May 25, 2026 • 1 URL -
Semantic Definition Format (SDF) for Data and Interactions of Things
by admin • Nov. 2, 2025 • 1 URL -
TOIP Trust Registry Protocol
by lisa+toip • Feb. 18, 2026 • 4 URLs -
VCON - Voice Conversation format
by admin • Nov. 26, 2025 • 1 URL -
Voice Browser Call Control: CCXML Version 1.0
- W3C
by admin • Oct. 31, 2025 • 1 URL -
Voice Extensible Markup Language (VoiceXML) Version 2.0
- W3C
by admin • Oct. 31, 2025 • 1 URL -
XARF - eXtended Abuse Reporting Format
by admin • Oct. 22, 2025 • 1 URL