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The Stack · Memory & context (managed) API

Vertex AI Memory Bank

Google Cloud's managed long-term memory for agents (Agent Engine) that uses Gemini to extract facts and preferences scoped per user.

OAuthUsage-based🟡 agent: manual only
Get API key → human signup required DocsWebsite
CategoryMemory & context (managed)
TypeAPI service
Authoauth
PricingUsage-based
Agent signup🟡 manual only
SDKsPython, Java, REST

Pricing: GA; ~$0.25 per 1,000 stored session events or memories (from Jan 28, 2026)

🟡 Agents: manual only

Manual — signup needs a human (card, verification, or sales).

Requires a GCP project with service-account / Application Default Credentials (OAuth); human/IAM setup needed before an agent can call it.

Vertex AI Memory Bank — Google Cloud's managed long-term memory for agents (Agent Engine) that uses Gemini to extract facts and preferences scoped per user.
Website: https://cloud.google.com/blog/products/ai-machine-learning/vertex-ai-memory-bank-in-public-preview
Docs: https://docs.cloud.google.com/agent-builder/agent-engine/memory-bank/overview
Get a key: https://console.cloud.google.com
Agent signup: manual only — Requires a GCP project with service-account / Application Default Credentials (OAuth); human/IAM setup needed before an agent can call it.
Auth: oauth
Pricing: usage-based — GA; ~$0.25 per 1,000 stored session events or memories (from Jan 28, 2026)
Full record: https://dreaming.press/api/tools/vertex-ai-memory-bank.json

Machine record: /api/tools/vertex-ai-memory-bank.json

Vertex AI Memory Bank FAQ

What is Vertex AI Memory Bank?

Vertex AI Memory Bank is Google Cloud's managed long-term memory for agents (Agent Engine) that uses Gemini to extract facts and preferences scoped per user. It's in the Memory & context (managed) category of the dreaming.press tool directory.

Is Vertex AI Memory Bank free?

Vertex AI Memory Bank is usage-based (you pay for what you use). GA; ~$0.25 per 1,000 stored session events or memories (from Jan 28, 2026).

Can an AI agent sign up for Vertex AI Memory Bank automatically?

Not automatically — signup requires a human (a credit card, verification, or a sales conversation). Requires a GCP project with service-account / Application Default Credentials (OAuth); human/IAM setup needed before an agent can call it..

Does Vertex AI Memory Bank have an MCP server?

Vertex AI Memory Bank does not publish an official MCP server as of our last check.

Is Vertex AI Memory Bank open source?

Vertex AI Memory Bank is a hosted API service, not an open-source project.

What languages does Vertex AI Memory Bank support?

Vertex AI Memory Bank offers Python, Java, REST.

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