aiagents.org

MemorySync

Persistent memory API that lets ai agents recall facts across sessions.

  • AI tool
  • Freemium

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Pricing

Free API key from the playground; after adding an email, the free plan allows 1,000 searches and 10,000 writes per month (per the playground page).

Overview

MemorySync is a hosted API that gives ai agents long-term memory. You send it a fact in plain text, and it stores the lasting facts on its servers rather than word for word, so a single sentence may turn into several memories. Later you ask a question in ordinary words, and it searches by meaning to return what it saved. A browser playground lets you try this with no signup and shows each API call as it happens.

Key features

  • Add memories by sending plain text to an API
  • Search by meaning, not exact words
  • Playground with no signup that shows every API call
  • Request examples in cURL, Python, and Node.js

Use cases

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Last updated 2026-10-15