AD4M

Integrated P2P Runtime

Agent-centric distributed application framework and spanning layer that enables interoperability across P2P, federated, and centralized systems by extending Holochain's agent-centric philosophy into a general-purpose semantic layer. Each user runs their own local AD4M instance (built on Holochain) holding their DID-based identity and personal data in subjective, RDF-based "Perspectives," rather than apps owning the user's data or social graph. Underlying storage/transport protocols (Holochain, IPFS, HTTP, etc.) are abstracted as pluggable "Languages," so apps built on differing back-ends can still interoperate at the semantic level.

DAO

Details

License CAL-1.0
Dev Status 🔬 Beta
Owner Nicolas Luck (Coasys DAO LLC)
Owner - List
Governing Body DAO / token-holder governance (Coasys DAO LLC)
Governing Body - List
Country Germany / International
Start Year 2020
Stack Rust + JavaScript/TypeScript + Deno
Funding Unknown / Self-funded
Last Investigated Sep 14, 2026

Topology view

This tool in the centre and the things it is directly related to. Each line names the kind of relationship.

Topology view: AD4MThis tool in the centre and the things it is directly related to. Each line names the kind of relationship.AD4MRDF (Based on, Conforms to)RDFSPARQL (Based on)SPARQLFlux (Hosts)FluxHolochain (Built on, Interoperates with, Stores in)HolochainCoasys (Developed by, Stewarded by)CoasysIPFS (Interoperates with)IPFSNeighbourhoods (Interoperates with)Neighbourhoo…NextGraph (Interoperates with)NextGraphSolid (Speaks protocol)Solid
  • RDF (Tool): Based on, Conforms to
  • SPARQL (Tool): Based on
  • Flux (Tool): Hosts
  • Holochain (Tool): Built on, Interoperates with, Stores in
  • Coasys (Organization): Developed by, Stewarded by
  • IPFS (Tool): Interoperates with
  • Neighbourhoods (Tool): Interoperates with
  • NextGraph (Tool): Interoperates with
  • Solid (Tool): Speaks protocol

Open in Graph Explorer

Affordances

Protocol federation Data portability Self-hostable

Integrated P2P Runtime Attributes

Owner - List
Origins Ecosystem/SDK
Database Graph Database (RDF-based Perspectives) + Holochain DHT
Query Language GraphQL + Prolog (for Social DNA)
Data Formats RDF triples (Links) + Custom (Language-defined Expressions)
Collaborative Live Editing Supported (via Neighbourhoods and CRDTs)
Mobile Support Yes (Rust executor can run on mobile)
Web Support Yes
Native Apps Yes (Tauri-based launcher)
Terms Self-hosting + Edge device + Planned cloud hosting
Funds Unknown
Based On Holochain (with Semantic Web/RDF concepts)
Governing Body - List
P2P Architecture Agent-centric DHT (via Holochain for Neighbourhoods)
Overlay Network App-wide (each Neighbourhood is separate network)
Content Addressing Yes (Language-based: <language_hash>://<address>)
Local-First Yes (agent-centric with local Perspectives)
E2EE Yes (Neighbourhoods are private by default)
CRDTs Lib Language-dependent (can use Automerge, Yjs, or others)
Byzantine Fault Tolerance Yes (inherited from Holochain)
Signature Cryptographic signatures (DID-based, Ed25519)
Permissions Cryptographic Capabilities (DID-based + Social DNA rules)
Semantic Web Compatibility RDF-compatible (custom implementation)
Smart Contract Yes (via Social DNA - Prolog-based)
Protocol Stack Position Application-layer (built on TCP/IP)
Asset / Value Embedding None — ADAM (Agent-centric Distributed Application Meta-ontology) is a meta-protocol spanning layer with no native token. Individual Languages built on ADAM may embed tokens (e.g., a Holochain Language or an Ethereum Language), but the ADAM layer itself has no protocol-native economic mechanism.
Development Tools GraphQL API (warp & juniper-based server on localhost:4000/graphql); Ad4mClient TypeScript/Rust SDKs (@coasys/ad4m on npm, ad4m-client on crates.io); ad4m-connect helper library for capability management; CLI tools (ad4m for client, ad4m-executor for runtime); Deno runtime for Language execution; Prolog engine for Social DNA queries and Perspective link queries; Ad4mModel class with TypeScript decorators for high-level data modeling; React hooks (ad4m-react-hooks) and Vue hooks (ad4m-vue-hooks)
Deployment Options Self-hosted local executor (ad4m-executor runs as personal runtime on user's device); AD4M Launcher (system tray application for managing executors); Perspect3ve (agent-centric browser and generic social UI); edge devices; planned cloud hosting (CAL-compliant); headless executor mode for server deployment
Authentication & Identity Decentralized ID (DID) — did:key: method (e.g., did:key:z6Mk...); each agent identified by DID with cryptographic keys; every Expression and Link cryptographically signed by authoring agent; automatic provenance on all data; DID creation or import on first initialization; keystore unlock for existing agents; MetaMask integration for blockchain identity (EAS, EntanglementProofs)
Storage Model Hybrid: Local Perspectives (private, agent-centric RDF triple graphs stored locally — similar to Solid Pods but agent-centric) + Distributed Neighbourhoods (shared collaborative graphs synced via Holochain DHT or centralized fallback); every piece of data is an Expression (cryptographically signed statement by an agent); Perspectives contain Links (subject-predicate-object triples where all items are URLs pointing to Expressions)
Interoperability Universal spanning layer — Languages are pluggable protocol adapters that can wrap any storage/communication technology (HTTP, IPFS, Solid, Holochain, blockchains, custom APIs); Expressions addressed via universal URL scheme <language_hash>://<address>; self-recursive architecture (core concepts Agents/Languages/Perspectives are themselves implemented as Languages, enabling evolution); Neighbourhoods enable portability of social structure across apps
Social Graph Yes (agent-centric social graph; Perspectives model relationships as RDF-like Links between agent Expressions; Neighbourhoods are shared social contexts independent of any single app; Social DNA embedded in Neighbourhoods defines group expectations and patterns; Social Organisms emerge from Neighbourhoods with Social DNA; publicly shared agent Perspectives visible to other agents; friends-lists modeled as Perspectives containing agent expressions)
Protocol Maturity / Standardization Community Standard (open specification maintained by project community; not submitted to formal standards body)
Update Policy Agent-centric / Language-defined — update semantics are delegated to individual Languages; Perspectives (local subjective graphs) are mutable by the owning agent at will; shared Neighbourhoods inherit the update rules of their underlying Language (e.g., DHT append-only for Holochain Languages, or blockchain semantics for EVM Languages); no global update policy imposed by the ADAM layer.

Relationships

How this tool connects to other tools and organizations, from relationships reviewed by the OpenHaven data steward. They describe how projects connect, not how good they are.

Based on
Built on
Conforms to
Developed by
  • Coasys
Speaks protocol
Stewarded by
  • Coasys
Stores in
Hosts