Chroma
Memory
Open-source embedding database with Chroma Cloud and an official MCP server
MCPOpenAPIllms.txt
API keypay-per-request
A directory of services AI agents can actually use — APIs, tools and merchants with machine-readable interfaces and agent payment protocols. Badges are probe-backed, never self-asserted.
Memory
Open-source memory engine that builds a queryable knowledge graph from documents, code, and conversations
Memory
Stateful agent runtime where memory is the agent — self-editing core memory, archival recall, and a REST API
Memory
Managed memory layer that extracts, dedupes, and retrieves long-term memories per user, agent, or session
Memory
Serverless Postgres with instant branching, autoscaling, and a remote MCP server
Memory
Managed vector database with serverless indexes, integrated embedding, and an assistant MCP server
Memory
Open-source vector search engine with managed cloud and an official MCP server
Memory
Postgres with pgvector, auth, storage, edge functions, and a remote MCP server
Memory
Serverless Redis, Vector, and QStash with per-request pricing and an official MCP server
Memory
Temporal knowledge-graph memory (Graphiti) with bi-temporal validity, so agents can query what was true when
Memory
Reactive TypeScript backend with a built-in agent and durable workflow components
Memory
Embedded and cloud multimodal vector store built on the Lance columnar format
Memory
LangChain memory SDK for extracting, updating, and retrieving semantic, episodic, and procedural memories
Memory
Serverless Postgres with a remote MCP server for provisioning and querying databases
Redis-backed working and long-term memory service for agents, with REST and MCP interfaces
Memory
Memory API and MCP server for coding and chat agents, with document ingestion and semantic recall
Memory
Object-storage-native vector and full-text search, priced for very large, mostly-cold indexes
Memory
Distributed SQLite with per-tenant databases and edge replication
Memory
Open-source vector database with hybrid search, agents, and a managed cloud tier
Memory
Managed Milvus vector database for billion-scale similarity search
Same query as JSON: /api/v1/services?category=remember&auth_method=api-key
