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ChainMemory VS Underscore Done

Compare ChainMemory VS Underscore Done and see what are their differences

Tempreon
A personal memory layer for your AI tools, connected over MCP. sponsored
Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

ChainMemory logo ChainMemory

Portable, verifiable memory for AI agents โ€” works across ChatGPT, Claude, Gemini and any MCP client

Underscore Done logo Underscore Done

Real-world tasks your agent can't do alone.
  • ChainMemory
    Image date //
    2026-07-02
  • ChainMemory
    Image date //
    2026-07-02
  • ChainMemory
    Image date //
    2026-07-02

ChainMemory gives your AI agents persistent memory that belongs to YOU โ€” not to a single vendor.

Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity โ€” no trust required.

Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.

  • Underscore Done Main Screen
    Main Screen //
    2026-08-09

Underscore Done (_done) is a suite of pay-per-call utility APIs built for AI agents. No API keys, no subscriptions - agents pay per request with USDC via the x402 protocol

ChainMemory

Website
chainmemory.ai
Pricing URL
Official ChainMemory Pricing
$ Details
free
Release Date
-
Edit details

Underscore Done

Website
underscoredone.com
Pricing URL
Official Underscore Done Pricing
$ Details
paid $0.01 (Per api call)
Release Date
2026 July
Startup details
Country
United States
State
texas
City
Austin
Edit details

ChainMemory features and specs

  • Cross-model memory
    Save in ChatGPT, recall in Claude, Gemini, Perplexity or Copilot
  • MCP Server
    Native integration with Claude Desktop, Cursor and any MCP client (npm)
  • Chrome Extension
    One-click save and context injection on any AI chat
  • Project Brain
    Consolidates memories into structured state: decisions, milestones, risks
  • Cryptographic Verification
    Merkle proofs + on-chain anchoring โ€” independently verifiable
  • REST API
    Full backend control with per-project API keys
  • Semantic Search
    Fast semantic recall across all your memories
  • Multi-Agent Support
    Claude, Cursor and GPT share one project state with attribution

Underscore Done features and specs

No features have been listed yet.

Analysis of ChainMemory

Overall verdict

  • I don't have verified information about ChainMemory (chainmemory.ai), so I can't confirm whether it's good or reliable. I don't want to fabricate details about a product I have no factual basis forโ€”please verify through official sources, user reviews, and independent research before drawing conclusions.

Why this product is good

  • I lack verified data on this specific product's features, performance, or user feedback
  • No independent reviews or benchmarks are available to me for this service
  • I cannot confirm the legitimacy, pricing, or claims made by chainmemory.ai
  • Making up details would be misleading rather than helpful

Recommended for

  • Anyone considering this product should first check the official website for documentation and pricing
  • Look for third-party reviews, community discussions, or case studies before committing
  • Consider reaching out to the company directly for demos, references, or trial access
  • Consult recent tech news or comparison articles if this is a newer or niche tool

Category Popularity

0-100% (relative to ChainMemory and Underscore Done)

ChainMemory

Underscore Done

AI
79 79%
AI
21% 21
AI Agents
0 0%
AI Agents
100% 100
Developer Tools
100 100%
Developer Tools
0% 0
AI Memory
100 100%
AI Memory
0% 0

Questions & Answers

As answered by people managing ChainMemory and Underscore Done.

What makes your product unique?

Underscore Done's answer:

We provide data and actions that AI cannot achieve.

Also we don't require accounts, registration, api keys. And we charge per usage and never charge monthly subscriptions.

How would you describe the primary audience of your product?

Underscore Done's answer:

Ai Agents that work on behalf of people.

User comments

Share your experience with using ChainMemory and Underscore Done. For example, how are they different and which one is better?
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What are some alternatives?

When comparing ChainMemory and Underscore Done, you can also consider the following products

Mem0 - Your private, local memory layer for all AI tools

AgentGatePay - Enable AI agents to make autonomous payments with AP2 mandates and X402 protocol. Multi-chain crypto, budget controls, instant settlement.

Agentmemory - Persistent memory for Claude Code, Codex & coding agents

x402 - An open protocol for internet-native payments from Coinbase

Memori - Persistent memory from agent trace, not just conversation

Tempreon - A personal memory layer for your AI tools, connected over MCP.

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