# r3

> Local Redis memory MCP for AI apps with hybrid caching and optional Mem0 cloud backup.

- name: io.github.n3wth/r3
- version: 1.3.2
- connection class: L0 (run_local_package)
- trust: 91/100
- quality: –/100 (not scored)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.n3wth%2Fr3
- tools: https://api.protogrid.dev/v1/servers/io.github.n3wth%2Fr3/tools

**Runs on your machine: something must execute the package.** Only local packages are published (npm, PyPI, OCI, …). The registry never executes them, so tools are unknown until you run it.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "r3": {
      "command": "npx",
      "args": [
        "-y",
        "@n3wth/r3@1.3.2"
      ],
      "env": {
        "MEM0_API_KEY": "${MEM0_API_KEY}"
      }
    }
  }
}
```

Placeholders to fill: `${MEM0_API_KEY}`.

## Trust

- hygiene: 100
- liveness: n/a
- freshness: 85
- provenance: 90
- drivers: +repository +namespace-matches-repo +website ~liveness-unmeasured ~updated-41d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality –/100 (not scored)

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

### protocol: n/a (weight 25)

- n/a `protocol.modern`, `protocol.stateless`, `protocol.transport`, `protocol.list_ttl`: no remote answered a protocol handshake (not probed yet, unreachable, or local-only)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: n/a (weight 30)

- n/a `tools.descriptions`, `tools.description_length`, `tools.schemas`, `tools.annotations`, `tools.directory_hints`, `tools.token_cost`, `tools.api_dump`: tool list unknown (behind auth, not probed, or empty)

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool list unknown

### dependencies: 17 (weight 15)

- fail `deps.known_vulns`: 12 advisories to act on (malicious, or rated high or critical with a fix available): GHSA-f88m-g3jw-g9cj in sharp@0.34.5 (indirect, fixed in 0.35.0), GHSA-rgj7-g3m4-5g8c in sharp@0.34.5 (indirect, fixed in 0.35.4), GHSA-wq5f-xc86-pv6w in sharp@0.34.5 (indirect, fixed in 0.35.5), ...; 9 more of lower severity or without a fix
- fail `deps.mcp_sdk_version`: @modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
- warn `deps.resolvable`: the dependency graph of @n3wth/r3@1.3.2 resolved with errors, so advisories may be missing

- tools: unknown
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.n3wth/r3.svg)](https://protogrid.dev/servers/io.github.n3wth/r3)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- npm @n3wth/r3@1.3.2: incomplete, 686 dependencies, MCP SDK @modelcontextprotocol/sdk 1.30.1
  - GHSA-23hp-3jrh-7fpw (critical) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.19 ``, advisory summary: "node-tar: Decompression/parse DoS via unlimited input" https://osv.dev/vulnerability/GHSA-23hp-3jrh-7fpw
  - GHSA-6qxp-vccf-f47h (high) in `` @modelcontextprotocol/sdk@1.30.1 ``, direct, fixed in `` 1.31.0 ``, advisory summary: "MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server" https://osv.dev/vulnerability/GHSA-6qxp-vccf-f47h
  - GHSA-f88m-g3jw-g9cj (high) in `` sharp@0.34.5 ``, indirect, fixed in `` 0.35.0 ``, advisory summary: "sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591" https://osv.dev/vulnerability/GHSA-f88m-g3jw-g9cj
  - GHSA-rgj7-g3m4-5g8c (high) in `` sharp@0.34.5 ``, indirect, fixed in `` 0.35.4 ``, advisory summary: "sharp: Vulnerabilities in libheif: GHSA-g89c-p67h-r497 and GHSA-2jg2-4ch7-h545" https://osv.dev/vulnerability/GHSA-rgj7-g3m4-5g8c
  - GHSA-wq5f-xc86-pv6w (high) in `` sharp@0.34.5 ``, indirect, fixed in `` 0.35.5 ``, advisory summary: "sharp : Vulnerability in librsvg dependency CVE-2026-96889" https://osv.dev/vulnerability/GHSA-wq5f-xc86-pv6w
  - GHSA-34x7-hfp2-rc4v (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.7 ``, advisory summary: "node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal" https://osv.dev/vulnerability/GHSA-34x7-hfp2-rc4v
  - GHSA-83g3-92jg-28cx (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.8 ``, advisory summary: "Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in node-tar Extraction" https://osv.dev/vulnerability/GHSA-83g3-92jg-28cx
  - GHSA-8qq5-rm4j-mr97 (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.3 ``, advisory summary: "node-tar is Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization" https://osv.dev/vulnerability/GHSA-8qq5-rm4j-mr97
  - GHSA-8x88-c5mf-7j5w (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.18 ``, advisory summary: "node-tar: Negative tar entry size causes infinite loop in archive replace" https://osv.dev/vulnerability/GHSA-8x88-c5mf-7j5w
  - GHSA-9ppj-qmqm-q256 (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.11 ``, advisory summary: "node-tar Symlink Path Traversal via Drive-Relative Linkpath" https://osv.dev/vulnerability/GHSA-9ppj-qmqm-q256
  - GHSA-qffp-2rhf-9h96 (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.10 ``, advisory summary: "tar has Hardlink Path Traversal via Drive-Relative Linkpath" https://osv.dev/vulnerability/GHSA-qffp-2rhf-9h96
  - GHSA-r292-9mhp-454m (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.21 ``, advisory summary: "node-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selection" https://osv.dev/vulnerability/GHSA-r292-9mhp-454m
  - GHSA-r6q2-hw4h-h46w (high) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.4 ``, advisory summary: "Race Condition in node-tar Path Reservations via Unicode Ligature Collisions on macOS APFS" https://osv.dev/vulnerability/GHSA-r6q2-hw4h-h46w
  - GHSA-7pqw-9j4j-h8q3 (high) in `` extract-zip@2.0.1 ``, indirect, no fix yet, advisory summary: "extract-zip allows arbitrary file writes through symlink archive entries" https://osv.dev/vulnerability/GHSA-7pqw-9j4j-h8q3
  - GHSA-jmr9-qjv8-65gv (high) in `` extract-zip@2.0.1 ``, indirect, no fix yet, advisory summary: "extract-zip unvalidated symlink path traversal" https://osv.dev/vulnerability/GHSA-jmr9-qjv8-65gv
  - GHSA-ch52-4w7c-c8xp (high) in `` http-cache-semantics@4.2.0 ``, indirect, no fix yet, advisory summary: "http-cache-semantics max-stale handling can disclose cross-user cached responses" https://osv.dev/vulnerability/GHSA-ch52-4w7c-c8xp
  - GHSA-gvwx-54wh-qm9j (moderate) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.17 ``, advisory summary: "node-tar: Uncaught Exception DoS via NUL byte in PAX path/linkpath records" https://osv.dev/vulnerability/GHSA-gvwx-54wh-qm9j
  - GHSA-vmf3-w455-68vh (moderate) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.16 ``, advisory summary: "node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)" https://osv.dev/vulnerability/GHSA-vmf3-w455-68vh
  - GHSA-w8wr-v893-vjvp (moderate) in `` tar@6.2.1 ``, indirect, fixed in `` 7.5.18 ``, advisory summary: "node-tar: Process crash via PAX numeric path type confusion" https://osv.dev/vulnerability/GHSA-w8wr-v893-vjvp
  - GHSA-776f-qx25-q3cc (moderate) in `` xml2js@0.4.23 ``, indirect, fixed in `` 0.5.0 ``, advisory summary: "xml2js is vulnerable to prototype pollution" https://osv.dev/vulnerability/GHSA-776f-qx25-q3cc
  - GHSA-hp3w-g68c-fv3c (moderate) in `` sprintf-js@1.1.3 ``, indirect, no fix yet, advisory summary: "sprintf-js vulnerable to denial of service through unbounded precision specifiers" https://osv.dev/vulnerability/GHSA-hp3w-g68c-fv3c
  - GHSA-vpq2-c234-7xj6 (low) in `` @tootallnate/once@1.1.2 ``, indirect, fixed in `` 2.0.1 ``, advisory summary: "@tootallnate/once vulnerable to Incorrect Control Flow Scoping" https://osv.dev/vulnerability/GHSA-vpq2-c234-7xj6

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

_none_

## Packages

- npm @n3wth/r3@1.3.2 secrets: MEM0_API_KEY

## Tools (0)

_none observed_