sepiace

Name: sepiace
Author: osaxyz

by osaxyzversion 0.2.0i★ –iRuns in the cloud

Registry nameio.sepiace/sepiace

Install

Overview

Description from the maker (original English)

Long-term memory for AI agents. Pass one sentence, and it remembers, recalls, or forgets.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://hi.sepiace.io/api/v1/mcp

Run this in your terminal

claude mcp add --transport http sepiace https://hi.sepiace.io/api/v1/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "sepiace": {
      "url": "https://hi.sepiace.io/api/v1/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "sepiace": {
      "type": "http",
      "url": "https://hi.sepiace.io/api/v1/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://hi.sepiace.io/api/v1/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain sepiace.io (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 7230 servers in this category
Published to the registry more recently than 62% of the other 7230 servers in this category
Basic checks equal to or better than 100% of the other 7230 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is sepiace safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.0) reached the registry 22 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated 3 days ago

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 44 days ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

sepiace

Long-term memory for AI agents. Your agent passes one natural-language sentence, and sepiace remembers, recalls, or forgets.

If sepiace helps you, a star keeps us going.

[!IMPORTANT]

sepiace is in beta. Memories are stored on the sepiace server at hi.sepiace.io, separately for each account. Do not ask your agent to remember passwords, API keys, or other secrets.

Quick start

npm create sepiace

It finds Claude Code, Codex, Cursor, VS Code, and OpenCode on your machine, connects the ones you choose, and walks you through signing in. Then start a new session and ask your agent:

"Remember that I prefer pnpm over npm."
"What did we decide about the release schedule?"
"Forget my old home address."

To bring over what your agent already remembers, run /sepiace:migrate in Claude Code, or ask other clients to use the sepiace-migrate skill. It shows you what it found and sends nothing until you agree.

Install by hand

Claude Code:

/plugin marketplace add osaxyz/sepiace

/plugin install sepiace@sepiace

Codex:

codex plugin marketplace add osaxyz/sepiace

codex plugin add sepiace@sepiace codex mcp login sepiace

Other MCP clients: add https://hi.sepiace.io/api/v1/mcp as a remote MCP server (Streamable HTTP). The client signs in through OAuth in the browser.

Technology

One sentence in, memory text out

Your agent writes what it wants in plain words. A judgment network on the server decides whether to save, recall, search, or forget, and combines them when needed. The response contains only memory text, with no IDs, dates, or scores, so the agent spends no tokens building structured arguments.

Memories are your own words

Each memory is cut from the sentences in the request. No LLM writes or rewrites it, and when something becomes outdated, only that sentence is replaced. A memory stays in the language you wrote it in.

Memories fade unless they are used

Each memory's score follows the FSRS forgetting curve and is computed when it is read. Memories that go unused fade, and once a memory's recall probability drops below 50%, it no longer appears in search. Each recall makes it stick.

Your memories stay yours, and you can see every request

Memories are kept separately for each account, and every database query and vector search is scoped to the signed-in user. The console at hi.sepiace.io lists every request with the memories it changed, and a client you disconnect there stops working right away.

Measured with KiokuBench

KiokuBench checks what a memory system actually stored: whether it kept the facts, replaced outdated ones, forgot what it was asked to forget, and stayed tidy. The KiokuBench Index combines these four pillars into one number from 0 to 100.

System	Index	Remember	Replace	Forget	Tidy
sepiace	96.1	98.7	98.0	100.0	88.2
Supermemory	58.9	95.3	95.0	22.0	60.5
ByteRover	39.2	72.3	19.0	62.0	27.7
Mem0	8.5	96.3	0.0	0.0	55.0
Store everything	8.0	99.0	0.0	0.0	41.7

KiokuBench v0.1, 10 personas in English and Japanese, raw conversation passed in as is. sepiace was measured on October 14, 2026, and the others between September 27 and 30, 2026. KiokuBench was designed and run by the team that builds sepiace. The method, the eight metrics, the conditions for each system, and the limitations are on sepiace.io.

Specification

Plugin components

Component	What it does
MCP server	Connects `https://hi.sepiace.io/api/v1/mcp`. It has one tool, `memory`, which takes one sentence
`memory` skill	Tells the agent to recall before acting, to save durable facts as plain sentences about you, and never to send secrets
Session-start note	A short reminder, about 130 tokens, added when a session starts, is cleared, or is compacted
`migrate` skill	Moves local memories into sepiace. It runs only when you ask for it
`update` skill	Updates the plugin and the skills in every client to the latest version. It runs only when you ask for it

What the migrate skill reads

Source	Files
Claude Code auto memory	`~/.claude/projects//memory/.md`
Claude Code user instructions	`~/.claude/CLAUDE.md`
Codex memories	`~/.codex/memories/`
Codex user instructions	`~/.codex/AGENTS.md`

It never changes the local files.

What npm create sepiace changes

Client	What it does
Claude Code, Codex	Installs the plugin from this repository
Cursor	Adds sepiace to `~/.cursor/mcp.json` and the skills to `~/.cursor/skills`
VS Code	Adds sepiace to the user `mcp.json` and the skills to `~/.copilot/skills`
OpenCode	Adds sepiace to `~/.config/opencode/opencode.json` and the skills to `~/.config/opencode/skills`
Claude Desktop and claude.ai	Shows how to add sepiace as a custom connector

The CLI lives in cli/ and is published to npm as create-sepiace.

sepiace

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

sepiace

Quick start

Technology

Specification