duxxdb 0.1.2

DuxxDB — the database built for AI agents. Hybrid (vector + BM25 + structured) retrieval, agent-native primitives (MEMORY / TOOL_CACHE / SESSION), embedded-or-server, RESP / gRPC / MCP.

duxxdb — Python bindings

Native Python bindings for DuxxDB, the agent-native hybrid database. Built with PyO3 + maturin against the stable Python ABI (abi3-py38) so a single wheel supports Python 3.8 through 3.13.

Install

From a wheel (recommended)

pip install duxxdb-0.1.0-cp38-abi3-<platform>.whl

(For now, build the wheel locally — see the next section. Public PyPI release lands with v0.1.0.)

Build from source

# Prerequisites: Rust toolchain, Python ≥ 3.8.
pip install --user maturin
cd bindings/python
maturin build --release
pip install --force-reinstall ../../target/wheels/duxxdb-0.1.0-cp38-abi3-*.whl

On Windows + Git Bash the workspace uses the GNU toolchain — see ../../docs/SETUP.md for the WinLibs MinGW prerequisite.

Quickstart

import duxxdb

store = duxxdb.MemoryStore(dim=4)

def embed(text):
    """Replace this with a real embedder (OpenAI / Cohere / local BGE)."""
    import hashlib
    h = int(hashlib.sha1(text.lower().encode()).hexdigest()[:16], 16)
    v = [(h >> (i*4)) & 0xff for i in range(4)]
    norm = sum(x*x for x in v) ** 0.5 or 1.0
    return [x / norm for x in v]

store.remember(key="alice", text="I lost my wallet at the cafe", embedding=embed("wallet"))
store.remember(key="alice", text="My favorite color is blue",     embedding=embed("blue"))

hits = store.recall(key="alice", query="wallet",
                    embedding=embed("wallet"), k=3)
for hit in hits:
    print(f"{hit.score:.4f}  {hit.text}")

Output:

0.0328  I lost my wallet at the cafe
0.0161  My favorite color is blue

API surface

Class	Constructor	Methods
MemoryStore	dim, capacity=100_000	remember(key, text, embedding) -> id, recall(key, query, embedding, k=10) -> [MemoryHit], len(), dim
MemoryHit	(returned by recall)	id, key, text, score
ToolCache	threshold=0.95	put(tool, args_hash, args_embedding, result, ttl_secs=3600), get(tool, args_hash, args_embedding) -> ToolCacheHit | None, purge_expired(), len()
ToolCacheHit	(returned by get)	kind ("exact" or "semantic_near_hit"), similarity, result
SessionStore	ttl_secs=1800	put(session_id, data), get(session_id) -> bytes | None, delete(session_id) -> bool, purge_expired(), len()

Module-level: duxxdb.__version__.

ToolCache: semantic-near-hit demo

cache = duxxdb.ToolCache(threshold=0.95)

# Cache the result of an expensive web_search call.
cache.put(tool="web_search", args_hash=hash("what is rust?"),
          args_embedding=embed("what is rust?"),
          result=b"A systems programming language ...",
          ttl_secs=600)

# Later, a paraphrased query — different hash, similar embedding.
hit = cache.get("web_search",
                args_hash=hash("describe rust"),
                args_embedding=embed("describe rust"))

if hit and hit.kind == "semantic_near_hit":
    print(f"cache hit by paraphrase, similarity={hit.similarity:.3f}")
    answer = hit.result.decode() if isinstance(hit.result, bytes) else bytes(hit.result).decode()

What's missing today

• Subscriptions (MemoryStore.subscribe()) — Phase 4.5; the Rust / RESP servers already support this, the Python wrapper just needs to bridge tokio::broadcast::Receiver into a Python iterator.
• Async API — currently sync only. async def wrappers are planned.
• Numpy / typed-array fast path — embeddings are currently list[float]. Phase 3.5 will accept np.ndarray[float32] directly via numpy::PyArrayLike.

See ../../docs/ROADMAP.md for the broader plan.

License

Apache 2.0. See ../../LICENSE.