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제작자가 쓴 설명(영어 원문)
Offline read-only search over a checksum-verified, optionally signed memory pack, with exact quotes
이 세 가지는 절대 하나의 점수로 합치지 않아요. 의견, 측정, 인기는 서로 다른 것이니까요.
이 서버는 아직 쉬운 말로 된 요약을 쓰지 못했어요. 아래는 레지스트리에서 읽어 온 사실이에요.
쓰고 있는 AI 앱을 고른 다음 설정을 복사하세요.
필요한 것
어떤 앱을 쓰세요?
위에서 앱을 고르세요. 기억해 두었다가 다음부터는 버튼에 “…에 설치”라고 표시해요.
Claude Desktop → Settings → Developer → Edit Config를 열고 claude_desktop_config.json에 이 내용을 붙여 넣으세요
{
"mcpServers": {
"verified-memory": {
"command": "npx",
"args": [
"-y",
"@python1/verified-memory-mcp",
"--pack",
"--require-signature",
"false",
"--strict",
"false"
]
}
}
}터미널에서 이 명령어를 실행하세요
claude mcp add verified-memory -- npx -y @python1/verified-memory-mcp --pack --require-signature false --strict false이 서버는 실행 명령어에 값을 넣어야 해서, 설정을 복사한 뒤 직접 채워 주세요.
프로젝트의 .cursor/mcp.json 또는 ~/.cursor/mcp.json에 붙여 넣으세요
{
"mcpServers": {
"verified-memory": {
"command": "npx",
"args": [
"-y",
"@python1/verified-memory-mcp",
"--pack",
"--require-signature",
"false",
"--strict",
"false"
]
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
이 서버는 실행 명령어에 값을 넣어야 해서, 설정을 복사한 뒤 직접 채워 주세요.
프로젝트의 .vscode/mcp.json에 붙여 넣으세요
{
"servers": {
"verified-memory": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@python1/verified-memory-mcp",
"--pack",
"--require-signature",
"false",
"--strict",
"false"
]
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
이 서버는 내 컴퓨터에서 실행되는데, ChatGPT는 인터넷에 있는 서버에만 연결할 수 있어요. 다른 앱을 고르세요.
선택한 앱은 이 기기의 쿠키에만 저장돼요. 계정은 필요 없어요.
이 설정은 제작자의 레지스트리 정보로 만들었어요. README와 다르면 README를 따르세요.
내 컴퓨터에서 실행돼요. 설치하면 AI 앱에 도구 목록이 나타나요.
누구나 볼 수 있는 정보를 점검했고, 코드는 읽지 않았어요. 해당하지 않는 항목은 개수에서 뺐어요. · 2026년 11월 6일 점검
레지스트리 이름이 GitHub 계정 python1 기준으로 확인되었고, 이 계정이 저장소를 소유하고 있어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
내 컴퓨터에서 실행되는 서버라 인터넷 엔드포인트가 없어요
내 컴퓨터에서 실행되며, 대신 로컬 설정을 사용해요
내 컴퓨터에서 실행돼요. 도구 목록은 인터넷 엔드포인트가 있는 서버에서만 읽을 수 있어요
레지스트리에서 이 카테고리의 활성 서버 전체와 비교했어요. 스타는 게시자가 저장소를 소유한 경우에만 세요.
해당하는 기본 점검 1개 중 1개를 통과했어요. 코드는 읽지 않았어요. 키나 토큰을 넣기 전에 서버가 어떤 권한을 요구하는지 확인하고, 꼭 필요한 권한만 있는 키를 쓰세요.
레지스트리에 필수 키가 나와 있지 않아요. 다만 처음 쓸 때 로그인을 요구하는 서버도 있어요.
내 컴퓨터에서 실행돼요. AI 앱이 필요할 때 실행하고, 데이터는 제작자의 서버를 거치지 않아요(서버 자체가 온라인 서비스를 호출하는 경우는 제외).
GitHub 저장소는 마지막으로 – 변경됐고, 최신 버전(0.4.1)은 19일 전 레지스트리에 올라왔어요.
Claude Desktop, Claude Code, Cursor, VS Code처럼 MCP를 지원하는 앱에서 쓸 수 있어요. 내 컴퓨터에 Node.js도 있어야 해요.
같은 카테고리에는: Context7, Codebase Memory, Exa
같은 카테고리에서 다른 제작자가 만든 서버예요. 스타 순으로 정렬했어요.
카드 보는 법:★ GitHub 스타i세 기둥: 리뷰 · 점검 · 사용 정도i업데이트 = 최신 버전을 레지스트리에 공개한 날i
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제작자의 저장소에서 쓰인 그대로 가져왔어요. PopNx MCP가 검토하거나 보증한 내용이 아니에요. HTML, 이미지, 스크립트는 제거했어요. 링크를 누르면 이 사이트를 벗어나요.
AI agents are starting to pay invoices and buy things. An agent pays wherever its memory says to pay. If someone swaps a remembered account number, the agent pays the attacker. This is vendor-payment fraud moving from fooling clerks to fooling AI.
Verified Memory serves only facts signed by a key you pin, and refuses anything changed after signing. An AI attacker red-teamed it with 12 tampering attacks (swapped files, broken signatures, fake clocks, a 5,000-file flood, the folder replaced while running). None got tampered data served (full log). Latest release: Verified Memory 0.4.1.
Free, MIT-licensed local stdio MCP server exposing verified_memory_search and verified_memory_get using the official MCP TypeScript SDK (@modelcontextprotocol/sdk 1.32.1). Published on npm as @python1/verified-memory-mcp and in the MCP Registry as io.github.python1/verified-memory.
Runtime is read-only and offline: no network transport, sockets, telemetry, embeddings, accounts, filesystem writes, subprocesses or shell execution. It reads one configured pack at startup and serves an isolated in-memory snapshot. On every request it checks, from file metadata only, that the pack folder is still the one it verified, and stops serving if it is not (no watchers, nothing re-read). Stdout is exclusively MCP protocol output; startup errors go to stderr and exit nonzero. Only these two tools are exposed; no resources, prompts, filesystem or command tools.
The npm package contains only dist/, the pack builder, this README and LICENSE. It ships no pack, so --pack is required:
npx -y @python1/verified-memory-mcp --pack /absolute/path/to/pack
Claude Code: claude mcp add verified-memory -- npx -y @python1/verified-memory-mcp --pack /absolute/path/to/pack. Running through npx does not apply Node's permission mode, because npx starts its own Node process. For the read-only filesystem allowlist described below, install the package and run its dist/index.js with node directly.
A pack is a directory with exactly four files: records.jsonl, MEMORY.md, README.md and SHA256SUMS, plus an optional PACK.json (creation and expiry dates) and an optional signature, SHA256SUMS.sig (see Signed and dated packs). The easiest way to make one is the bundled offline builder. It reads your messages and the records you want to remember, finds every quote in its message, computes offsets and hashes, writes the pack, and then loads it with the server's own verifier. If any quote is not verbatim in its message, it writes nothing.
Pack maker (beta): [https://python1.github.io/data-lore-hive/](https://python1.github.io/data-lore-hive/). Load your data export, search your chats, select the exact sentences to remember, and download a ready pack. It runs entirely in the browser (no server, and its Content-Security-Policy forbids network requests), uses the same building code as the command-line builder, and checks the pack with the server's own verifier before offering the download. It does not sign packs or add dates (use sign-pack, below), but its *Check a signed pack* panel runs the same verifier on a signed pack and the public keys you paste. Its source is in web/; to run it from a checkout instead, run npm install && npm run build there and open web/dist/index.html. See web/README.md.
messages.jsonl, one JSON object per line: {"id": 3, "date": "2026-03-02T08:20:00Z", "speaker": "Rowan", "text": "Quick thing first: the shed code changed. Also, the café on the corner sells seedlings on Saturdays."}
| Field | Rule |
|---|---|
id | positive integer, unique |
date | UTC ISO 8601 ending in Z or +00:00, e.g. 2026-03-02T08:20:00Z |
speaker | non-empty string |
text | non-empty string; quotes are matched against it exactly |
records.jsonl, one record per line, each citing exact quotes from those messages: {"record_id": "M-garden-3", "role": "user", "topic": "Seedlings", "category": "places", "quotes": [{"message_id": 3, "quote": "the café on the corner sells seedlings on Saturdays."}]}
| Field | Rule |
|---|---|
record_id | M- followed by 1–127 letters, digits, _ or -; unique |
role | "user" (the person) or "agent" (the assistant) |
topic, category | non-empty strings of your choice |
quotes | non-empty list of {"message_id", "quote"}; a quote must appear verbatim in that message. If it appears more than once, add "start" (the builder lists the choices) |
statement | optional summary; defaults to the quotes joined by spaces |
speaker | optional; defaults to the cited messages' speaker, required if they differ |
Unknown fields are refused, so typos fail loudly.
npx -y -p @python1/verified-memory-mcp verified-memory-build-pack \
--messages messages.jsonl --records records.jsonl \ --out /absolute/path/to/my-pack --title "My memory" --description "Optional text for the pack README" npx -y @python1/verified-memory-mcp --pack /absolute/path/to/my-pack
From a repository checkout, run node tools/build-pack.mjs ... after npm run build. The building rules (verbatim quotes, code-point offsets, hashes, file layout) live in tools/pack-core.mjs, which has no imports so a browser can run the same code. The builder makes no network calls. It never overwrites: it stages in a hidden sibling directory and renames it into place only after verification passes.
examples/input/ holds invented sample input (a fictional community garden, not real people), and examples/pack/ is the pack built from it; the test suite rebuilds it byte for byte. Neither ships in the npm package.
records.jsonl format (what the server verifies)One JSON object per line, UTF-8, at most 10,000 records, unique record_ids. Every field below is required unless marked optional:
| Field | Rule |
|---|---|
record_id | ^M-[A-Za-z0-9_-]{1,127}$ |
role | "user" or "agent" |
speaker, statement, topic, category | non-empty strings |
date_first_utc, date_last_utc | UTC ISO 8601 (Z or +00:00), first ≤ last |
evidence | non-empty list of citations (below) |
| anything else | optional; kept and returned by verified_memory_get as metadata (e.g. supersedes, approval, audits) |
Each citation in evidence:
| Field | Rule |
|---|---|
message_id | positive integer |
date_utc | UTC ISO 8601, between the record's first and last dates |
quote | non-empty exact text from the message |
start, end | integers, start ≥ 0, end − start = quote length in Unicode code points (offsets index the message text by code point, as Python string slicing does) |
message_sha256 | 64 lowercase hex characters: SHA-256 of the full message text encoded as UTF-8 |
Example (one line in the file; wrapped here for reading):
{"record_id":"M-garden-3","role":"user","speaker":"Rowan","category":"places","topic":"Seedlings",
"statement":"the café on the corner sells seedlings on Saturdays.", "date_first_utc":"2026-03-02T08:20:00Z","date_last_utc":"2026-03-02T08:20:00Z", "evidence":[{"message_id":3,"date_utc":"2026-03-02T08:20:00Z", "quote":"the café on the corner sells seedlings on Saturdays.","start":48,"end":100, "message_sha256":"e3aebbd25f7b809dd5b0b8d55b9ad7df6566464dc2a5033d02e3c5aa7ed8eeb2"}]}
Quotes are checked against their source messages when the pack is built, and after that the signature protects them. The builder (or agent-memory/) refuses any quote that is not verbatim in its message and computes message_sha256 from that message. The server never sees your original messages, so at load and at serve time it checks only citation structure, offsets' arithmetic and the hash's format; it does not re-check quotes against message_sha256. Once the pack is sealed, SHA256SUMS (and, for a signed pack, SHA256SUMS.sig) is what protects those quotes from later changes. A pack with no records is refused at load (since 0.4.1).
MEMORY.md and the pack README.mdThe server requires both to exist, be valid UTF-8 and match SHA256SUMS. It does not parse them or return them from either tool; they are for people and agents reading the pack directly. By convention, and as the builder writes them:
MEMORY.md: a # Title heading, then for each record its ID and speaker, its statement, and each quote with its message ID and date, marked as historical data.README.md: what the pack is and where it came from (SHA-256 of the input files, record count), plus the notice that quotes are data, not instructions, and that checksums prove integrity, not truth or approval.SHA256SUMS formatExactly one line per other file (three, or four with PACK.json), each <64 lowercase hex> + two spaces + file name; no entry for SHA256SUMS or SHA256SUMS.sig; at most 4 KiB:
f3ed88bca6a7a451a892f49bd6d2970f5671b8c704d0bc6cae7646c46978bc69 MEMORY.md
0685a25133fd3e7f60e70ba1e836a2e8b045ace1e2be2ecbd306a4fc656f558f README.md 34212f199411c8e4ef52cb341b0c68d970b5b30d9b8117c2eae5729b0d71dfa5 records.jsonl
If you edit a pack by hand, regenerate it from inside the pack directory:
shasum -a 256 MEMORY.md README.md records.jsonl > SHA256SUMS # macOS
sha256sum MEMORY.md README.md records.jsonl > SHA256SUMS # Linux
Resealing by hand only makes the checksums match again; it does not re-check quotes. Prefer rebuilding with the builder. Resealing also invalidates any signature: sign again.
A pack can carry two optional extras:
SHA256SUMS.sig: an OpenSSH signature over the exact SHA256SUMS bytes, which pin every other file. Only Ed25519 keys, the sha512 hash and the namespace verified-memory-pack-v1 are accepted, so a git or code-release signature cannot be reused as a pack signature.PACK.json (since 0.3.0): when the pack was made and when it stops being current, and (since 0.4.0) an optional sequence number. It is listed in SHA256SUMS like every other file, so the signature covers the dates and the sequence.{
"format": "verified-memory-pack", "version": 2, "created_utc": "2026-10-12T18:00:00Z", "expires_utc": "2027-01-10T18:00:00Z", "sequence": 3 }
Exactly these four keys plus the optional sequence; dates are UTC ISO 8601 and created_utc is before expires_utc. version is the format version and stays 2; sequence is a whole number (0 or more) that the signer raises with every pack they publish, so hosts can refuse an older one (see Rollback protection). A malformed PACK.json refuses to load. The pack maker and the builder never write one, so their packs still load on 0.2.0 hosts; packs with a PACK.json need 0.3.0 or later (older hosts refuse the extra file), and packs with a sequence need 0.4.0 or later (0.3.0 hosts refuse the extra key).
sign-packSign on a machine you trust with a passphrase-protected key. Since 0.4.1, sign-pack ships in the npm package as the verified-memory-sign-pack command (in a checkout it is tools/sign-pack.mjs). It copies a verified pack to a new folder, writes PACK.json, reseals SHA256SUMS and runs ssh-keygen -Y sign. It never opens the private key itself: ssh-keygen reads it and asks for the passph
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