attestdb 0.1.4

The database for knowledge you can verify

Attest

Licensed under the Business Source License 1.1. Free to use, modify, and self-host. Cannot be offered as a competing managed service. Converts to Apache 2.0 after 4 years.

A claim-native database for building reality models -- structured, provenanced, continuously-learning representations of organizational knowledge.

Claims are the atomic primitive. The graph is derived, not primary. Everything can be rebuilt from the claim log. Provenance is structural -- the engine rejects writes without a valid provenance chain.

Install

pip install attestdb

Quick Start

import attestdb

db = attestdb.open("my_knowledge.db")

# Ingest a claim with provenance
db.ingest(
    subject=("BRCA1", "gene"),
    predicate=("associated_with", "relates_to"),
    object=("Breast Cancer", "disease"),
    provenance={"source_type": "literature_extraction", "source_id": "PMID:12345"},
    confidence=0.9,
)

# Query the knowledge graph
frame = db.query("BRCA1", depth=2)
print(frame.focal_entity.name)
for rel in frame.direct_relationships:
    print(f"  --[{rel.predicate}]--> {rel.target.name} (conf={rel.confidence:.2f})")

db.close()

Rust Backend

For 100x faster ingestion (1M+ claims/sec), install the optional Rust engine:

pip install attest-py

Attest uses the Rust storage engine for all operations.

Core Capabilities

• Provenance-tracked claims -- every fact has a source chain
• Confidence scoring -- Tier 1 (direct evidence) + Tier 2 (corroboration)
• Retraction with cascade -- db.retract("source_123") propagates downstream
• Time travel -- db.at(timestamp) for point-in-time views
• Snapshot/Restore -- db.snapshot(path) and AttestDB.restore(path)
• MCP server -- expose your knowledge graph to AI agents
• Embedding index -- HNSW similarity search via usearch
• Audit chain -- tamper-evident Merkle hash chain on append-only log

Intelligence Layer (Enterprise)

LLM-powered features (curation, text extraction, chat ingestion, connectors, insight engine) are available in attestdb-enterprise:

pip install attestdb-enterprise

Optional Dependencies

pip install attestdb[mcp]   # MCP server for AI agents
pip install attestdb[all]   # everything

CLI

attest stats my.db              # Show database statistics
attest query my.db BRCA1        # Query knowledge around an entity
attest schema my.db             # Show knowledge graph schema
attest serve --port 8892        # Start MCP server
attest ingest file.json --db my.db  # Ingest claims from file

Documentation

See docs/ for full architecture and design documentation:

• docs/02_architecture.md -- Full technical architecture
• docs/06_api_spec.md -- API contract and validation rules
• docs/07_design_decisions.md -- Critical decisions with rationale

Running Tests

pip install attestdb[dev]
pytest tests/unit/ tests/integration/   # ~35 tests, <30s
cd rust && cargo test                   # Rust unit + golden vectors

License

Business Source License 1.1 -- free to use, modify, and self-host. Converts to Apache 2.0 after 4 years.