How EvolutionDB Compares
A SQL-compatible, agent-native memory layer that folds relational data, documents, and vectors into a single open-source binary. Here is how its architecture lines up against the tools teams reach for today — compared on capabilities, not marketing numbers.
Memory Built Into the Engine
EvolutionDB speaks the PostgreSQL wire protocol, so psql, DBeaver, and pgAdmin connect out of the box. The difference is in the DNA: agent-memory and vector primitives are first-class storage-engine features at the DDL level, not capabilities you add through an extension.
First-class SQL primitives
MEMORY STORE, ENTITY STORE, and VECTOR(N) are built-in types, not bolt-ons.
No extensions to install
HNSW vector indexing ships in the core — no CREATE EXTENSION step, no version-compatibility juggling.
// Postgres + pgvector
CREATE EXTENSION vector;
SELECT * FROM items ORDER BY embedding <-> '[1,2,3]' LIMIT 5;
// EvolutionDB
CREATE MEMORY STORE agent_brain;
SELECT * FROM agent_brain WHERE vector_search('[1,2,3]');
MongoDB Atlas Vector Search
Atlas Vector Search is a managed cloud service layered on a document store. EvolutionDB is a single binary you run yourself — including a zero-Docker embedded mode — with relational SQL, documents, and vectors in one engine.
- verified SQL relational engine with MVCC transactions
- verified Runs on-premise or air-gapped, no managed cloud required
- verified Open source under the MIT license
Pinecone / Weaviate
Dedicated vector databases store embeddings as a separate service alongside your primary database. EvolutionDB keeps vectors and relational data in the same engine, so a single query can filter rows and run semantic search without a second system to sync.
Zep / Mem0
Memory frameworks like Zep and Mem0 add an agent-memory layer on top of an existing database or vector store. EvolutionDB makes memory, temporal history, and vectors native to the storage engine itself — no extra backing store to operate.
TEMPORAL AS OF
ENTITY STORE
MCP SERVER
TDE + GRANTS
Feature Comparison Matrix
| Capability | EvolutionDB | Postgres + pgvector | Pinecone |
|---|---|---|---|
| PostgreSQL wire compatibility | done_all Native PG wire | Native | No (REST/gRPC API) |
| Vector search | done_all Native HNSW | Via extension | Yes (vector-only) |
| Agent memory primitives | done_all MEMORY / ENTITY STORE | Application layer | Application layer |
| Temporal / time-travel queries | done_all MVCC AS OF | No (built-in) | No |
| MCP-native for agents | done_all Ships MCP server | No | No |
| Self-hosted single binary | done_all Embedded mode | Yes | No (managed cloud) |
See it for yourself
EvolutionDB is open source under the MIT license. Clone the repository, read the docs, and run it in embedded mode with zero Docker.