Freemium
Added on Nov 13,2026
Memory is a long-term memory layer for AI agents built on , an open-source unified interface for running agent tools such as Claude Code, Codex and Hermes behind one Agent API.
Every agent that needs memory gets its own automatically when it is created, with no separate memory service to wire up and no new integration when the underlying agent runtime changes.
Memory is loaded when a session starts, used through tools during each turn and recorded when the turn ends, so the agent can recall what mattered before it answers in later sessions.
Agents running on different runtimes can share one memory. For example, a Codex agent can save a plan and a Claude Code agent can recall it in a new session.
Key features include a choice of memory engines, namely Mem0, Graphiti, Hindsight and ReMe, plus support for bringing your own memory service through an open protocol. Each end user of an agent can get a separate memory that can be erased on its own, access is granted per memory, and recalled memory is passed to the agent as data rather than instructions.
A console Memory page offers Data, Schema and Settings tabs to view, edit or delete what an agent remembers. The design follows the Memories chapter of the open Unified Protocol and connects to agents through MCP tools.
Pricing: a Community Edition is open source, and Cloud has a free plan with no card needed, plus Developer, Production and Scale plans at 20, 200 and 1,000 US dollars a month. Long-term memory is charged per memory operation, currently in beta.
It is suited to product teams building user-facing agents that need to remember people and context across sessions and tools.
Popular alternatives to Harness Memory include Pollinations, NemoClaw and Agnes AI. Compare their pricing and what each is best for below.
| Tool | Pricing | Best for |
|---|---|---|
| Pollinations | Freemium | Developers and hobby builders who want a single API for adding AI images, audio and text to their websites, bots and app... |
| NemoClaw | Free | Developers and platform teams who want to run always-on AI agents on NVIDIA hardware under policy-based security control... |
| Agnes AI | Freemium | Developers building AI-powered apps who want access to several models through one API. |
| OrcaRouter | Freemium | Developers and teams who want to balance AI quality and cost across many models. |
| DiagramGPT | Free | Developers and students who need to sketch system designs and workflows quickly by describing them in words. |
Own Harness Memory? Add this badge to your website.
Leave a review for the community
No Review Found
