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Decision brief
vectordb is an open-source vector database management system ideal for high-performance neural search and embedding storage.
Good fit when
- If you require C++-based integration within your project, vectordb provides a native option that ensures seamless operation without the need for additional language bindings or adapters.
- Ideal when focusing on community-driven developments with strong adherence to open-source principles given its GPL-3.0 license.
Avoid when
- If your application demands proprietary technologies and you wish to avoid open-source software, vectordb's GPL-3.0 licensing terms may pose a limitation.
- Avoid using vectordb in environments where alternative languages to C++ are preferred or required for consistency with the existing codebase.
Observed Jul 15, 2026 · Source: enrich:decision_facts
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Maintenance and security
Full trust report- Maintenance
- Slowing (265d since push)
- As of 4d
- Provenance
- Not a fork · Organization account
- As of 4d
- Security (OSV)
- No lockfile
- As of 1mo
Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.
Install
git clone https://github.com/epsilla-cloud/vectordbSimilar tools
Same-category neighbours. No typed graph edges are catalogued for this tool yet.
Evidence and technical details
Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.
Overview
Epsilla offers a vector database management system for efficient data and embedding storage, retrieval, and neural search.
Capability facts
- Languages
- c++
Source: github.language · Aug 21, 2026
Categories
Compatibility
Sourced claims from the README excerpt - not unsourced marketing copy.
Source: README excerpt (regex_v1, Aug 21, 2026)
**2. Interact with Python Client**Source link
Tags
README
Quick Start using Docker
1. Run Backend in Docker
docker pull epsilla/vectordb
docker run --pull=always -d -p 8888:8888 -v /data:/data epsilla/vectordb
2. Interact with Python Client
pip install pyepsilla
from pyepsilla import vectordb
client = vectordb.Client(host='localhost', port='8888')
client.load_db(db_name="MyDB", db_path="/data/epsilla")
client.use_db(db_name="MyDB")
client.create_table(
table_name="MyTable",
table_fields=[
{"name": "ID", "dataType": "INT", "primaryKey": True},
{"name": "Doc", "dataType": "STRING"},
],
indices=[
{"name": "Index", "field": "Doc"},
]
)
client.insert(
table_name="MyTable",
records=[
{"ID": 1, "Doc": "Jupiter is the largest planet in our solar system."},
{"ID": 2, "Doc": "Cheetahs are the fastest land animals, reaching speeds over 60 mph."},
{"ID": 3, "Doc": "Vincent van Gogh painted the famous work \"Starry Night.\""},
{"ID": 4, "Doc": "The Amazon River is the longest river in the world."},
{"ID": 5, "Doc": "The Moon completes one orbit around Earth every 27 days."},
],
)
client.query(
table_name="MyTable",
query_text="Celestial bodies and their characteristics",
limit=2
)
---
## (Experimental) Use Epsilla as a python library without starting a docker image
**1. Build Epsilla Python Bindings lib package**
```shell
cd engine/scripts
(If on Ubuntu, run this first: bash setup-dev.sh)
bash install_oatpp_modules.sh
cd ..
bash build.sh
ls -lh build/*.so
2. Run test with python bindings lib "epsilla.so" "libvectordb_dylib.so in the folder "build" built in the previous step
cd engine
export PYTHONPATH=./build/
export DB_PATH=/tmp/db33
python3 test/bindings/python/test.py
Here are some sample code:
import epsilla
epsilla.load_db(db_name="db", db_path="/data/epsilla")
epsilla.use_db(db_name="db")
epsilla.create_table(
table_name="MyTable",
table_fields=[
{"name": "ID", "dataType": "INT", "primaryKey": True},
{"name": "Doc", "dataType": "STRING"},
{"name": "EmbeddingEuclidean", "dataType": "VECTOR_FLOAT", "dimensions": 4, "metricType": "EUCLIDEAN"}
]
)
epsilla.insert(
table_name="MyTable",
records=[
{"ID": 1, "Doc": "Berlin", "EmbeddingEuclidean": [0.05, 0.61, 0.76, 0.74]},
{"ID": 2, "Doc": "London", "EmbeddingEuclidean": [0.19, 0.81, 0.75, 0.11]},
{"ID": 3, "Doc": "Moscow", "EmbeddingEuclidean": [0.36, 0.55, 0.47, 0.94]}
]
)
(code, response) = epsilla.query(
table_name="MyTable",
query_field="EmbeddingEuclidean",
response_fields=["ID", "Doc", "EmbeddingEuclidean"],
query_vector=[0.35, 0.55, 0.47, 0.94],
filter="ID < 6",
limit=10,
with_distance=True
)
print(code, response)
For agents
This page has a .md twin and JSON over the API.