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Weaviate Cloud

Managed vector database with hybrid search and native MCP

Weaviate Cloud is a managed vector database for semantic search, hybrid retrieval, RAG, and agent memory. It supports structured filtering, multi-tenancy, integrated vectorization and reranking, official clients, an OpenAPI REST interface, and a built-in MCP endpoint for agent access.

Best for agent capabilities

Useful in agent tasks

Overview

Authapi key
PricingFree tier available · $0/month
SDKstypescript, python, go, java, csharp
OpenAPIYes
MCP SupportYes

When to use Weaviate Cloud

Weaviate Cloud is listed for Vector DB, Database, Memory workflows. Weaviate Cloud is a managed vector database for semantic search, hybrid retrieval, RAG, and agent memory. It supports structured filtering, multi-tenancy, integrated vectorization and reranking, official clients, an OpenAPI REST interface, and a built-in MCP endpoint for agent access. Consider it when an agent needs this capability through a documented service boundary instead of custom infrastructure maintained inside the application.

In 4agent's task model, the product maps to memory and retrieval. That makes it a candidate for workflows that research the web, manage memory and knowledge, operate production agents.

Integration checklist

  • Access: confirm the api key authentication flow, credential scope, rotation process, and whether calls can be attributed to a user or service identity.
  • Client support: official or documented clients are listed for typescript, python, go, java, csharp.
  • Automation: OpenAPI is listed as available, MCP is listed as available, and CLI support is not currently recorded. Confirm each requirement in the provider's current documentation.
  • Operations: test rate limits, timeouts, retry safety, error payloads, logs, data retention, and the current free-tier and paid pricing model with production-like volume.

Sources and verification

Use these primary sources to verify current behavior before making an implementation or purchasing decision. Product capabilities, limits, and prices can change after a 4agent listing is reviewed.