Telys — on-device memory

Name: Telys — on-device memory
Author: thyn-ai

by thyn-aiversion 0.1.14i★ –iRuns on your computer

Registry nameio.github.thyn-ai/telys

Install

Overview

Description from the maker (original English)

Private on-device memory & retrieval for AI assistants — offline vector + lexical search.

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 on your computer
Transport: stdio
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 your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "telys": {
      "command": "uvx",
      "args": [
        "telys",
        "mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add telys -- uvx telys mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "telys": {
      "command": "uvx",
      "args": [
        "telys",
        "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": {
    "telys": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "telys",
        "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.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

Runs on your computer; the tool list appears in your AI app after you install it.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account thyn-ai, which owns the repo
… 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

More stars than 0% of the other 7264 servers in this category
Published to the registry more recently than 75% of the other 7264 servers in this category
Basic checks equal to or better than 100% of the other 7264 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 Telys — on-device memory 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 on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.14) reached the registry 12 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

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 yesterday

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 last month

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.

telys

Public SDK for Telys — embedded, on-device memory & retrieval. In-process, zero cloud roundtrips at query time.

This package contains the complete developer-facing surface: the Telys/Collection facades, query/filter types, the EmbeddingProvider interface, the Tuner/TuningPlan interfaces, the full MCP server (telys/mcp.py — 19 tools, protocol 2025-06-18, stdio), a runtime loader, and the telys CLI. The numerical kernel (libame_kernel) the tools drive is a separately distributed, signed on-device runtime fetched by telys login (free community license) — the same arrangement as MCP servers that front hosted or signed-binary backends.

Install

As a CLI (recommended — isolated env, on your PATH, not pinned to one Python):

pipx install telys

telys login # sign in → free device license + signed runtime; fully offline thereafter

As a library (to import telys in your own project):

python -m venv .venv && . .venv/bin/activate

pip install telys

Plain pip install --user telys works too, but pip may warn that its user-scripts dir isn't on your

PATH (a macOS --user quirk) — pipx avoids that entirely. Runtime platforms: **macOS arm64, Linux

x86_64/arm64 (Windows: run under WSL2**).

from telys import Telys

db = Telys("./memory") col = db.create_collection("docs", dim=768, partition_by="tenant_id") # dim is arbitrary — 384/768/1024/1536/3072… col.add(vectors, ids=ids, metadata=metadata) # bring your own vectors (embedding-agnostic, any dimension) hits = col.search(qvec, where={"tenant_id": "acme"}, top_k=10, explain=True)

The runtime is required for execution; the embedder is optional — col.add(vectors, …) and col.add_texts(…) both need the runtime, but only *_texts needs an embedder (bring your own via telys.embedding.CallableEmbedder, or use the on-device bigram embedder).

For local development, install the runtime as a package instead of via the CLI:

pip install "telys[runtime]"   # or: pip install telys-runtime

MCP server

telys mcp runs Telys as a Model Context Protocol server over stdio, exposing 19 tools — the full memory surface (CRUD, filtered queries, lexical search, compaction / IVF / tuning, plus a repo auto-indexer) — to any MCP client (Claude Desktop/Code, Cursor, Codex, Qwen Code, …). Everything is local and offline. Introspection (initialize/tools/list) needs no credentials; executing memory tools requires the one-time free telys login (device authorization, free community plan) — fully offline thereafter, no API key in the client config.

pipx install telys

telys login # free device license + signed on-device runtime telys runtime verify # confirm the runtime the tools drive is present telys mcp # serve JSON-RPC 2.0 (protocol 2025-06-18) on stdin/stdout

You rarely start it by hand — telys mcp install writes the server entry into your clients — or add this block to a client's MCP config yourself:

"mcpServers": { "telys": { "command": "telys", "args": ["mcp"] } } }

Registry: io.github.thyn-ai/telys on the Official MCP Registry. Server source: packages/telys-sdk/telys/mcp.py. MCP docs: docs.telys.ai/mcp.

Tool	What it does	Required arguments
`telys_search`	Semantic + lexical search over a memory collection	`collection`, `query`
`telys_add`	Add text documents (collection auto-created if absent)	`collection`, `texts`
`telys_create_collection`	Create a collection (fix name + partition key up front)	`name`
`telys_list_collections`	List saved collections in the active store	—
`telys_stats`	Row counts and index state for one collection	`collection`
`telys_upsert`	Add-or-replace rows by id (the idempotent write)	`collection`, `texts`, `ids`
`telys_update`	Re-embed/replace EXISTING ids (strict: ids required)	`collection`, `texts`, `ids`
`telys_delete`	Tombstone rows by id	`collection`, `ids`
`telys_ids`	List live external ids, optionally `where`-scoped	`collection`
`telys_count`	Live row count, optionally `where`-scoped	`collection`
`telys_get`	Exact row lookup by id (re-reads repo source slices)	`collection`, `ids`
`telys_search_lexical`	On-device BM25 keyword search	`collection`, `query`
`telys_compact`	Flush tombstones, merge delta into the base layout	`collection`
`telys_build_ivf`	Build per-partition IVF indexes (recall-floor calibrated)	`collection`
`telys_build_lexical`	Fit the BM25 lexical index	`collection`
`telys_tune`	Produce (and optionally apply) a TuningPlan	`collection`
`telys_index_repo`	Walk + chunk + ingest a repo, incrementally refreshed	—
`telys_repo_search`	Search the auto-indexed repo (re-indexes first, always fresh)	`query`
`telys_workspace_info`	Report the configured workspace, repo_id and file count	—

Every tool ships a rich description (what it does, when to use it, parameters with defaults, failure modes) and static MCP annotations (readOnlyHint / destructiveHint / idempotentHint / openWorldHint) — openWorldHint: false throughout: the server makes no network calls. Listing the tools needs no credentials and no runtime: initialize + tools/list answer from the static tool registry; only actual tool calls load the signed runtime lazily.

Documentation

Full documentation lives at [docs.telys.ai](https://docs.telys.ai):

Quickstart: your first collection
Working with data — add, upsert, search, filter, snapshot
Embeddings — built-in lexical + bring-your-own via CallableEmbedder
CLI reference · MCP integration · Self-hosting
SDK API index

Telys — on-device memory

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

telys

Install

MCP server

Documentation

Links