r3 (Recall) (n3wth/r3) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 14 tools. No publisher has claimed this listing.

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C
Caution
74/100

r3 (Recall)

An intelligent memory MCP server that provides AI applications with semantic search, entity extraction, and knowledge graph capabilities using local Redis caching and optional cloud sync. It enables LLMs to store and retrieve long-term context across sessions with high-performance multi-tier storage.

→ n3wth/r3· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

n3wth

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Secret credentials may flow to a network call
1 flow detected: MEM0_API_KEY. We can’t prove the destination matches the brand the credential belongs to.
⚠️
Known vulnerabilities in dependencies: 1 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 4 credentials: EXA_API_KEY, MEM0_API_KEY, R3CALL_API_KEY, MCP_AUTH_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 high9 medium

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

highaxios@1.17.0GHSA-gcfj-64vw-6mp9

Axios Node HTTP adapter can use an inherited proxy after interceptor config cloning

mediumaxios@1.17.0GHSA-42h9-826w-cgv3

Axios: Excessive recursion in formDataToJSON can cause denial of service

mediumaxios@1.17.0GHSA-7q8q-rj6j-mhjq

Axios: Nested axios option objects can consume polluted prototype values

mediumaxios@1.17.0GHSA-f4gw-2p7v-4548

Axios: NO_PROXY bypass for 0.0.0.0 local addresses in axios

mediumaxios@1.17.0GHSA-hcpx-6fm6-wx23

Axios form serializer maxDepth bypass via {} metatoken

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretEXA_API_KEY
🔐 secretMEM0_API_KEYMem0 (optional) — if is set, r3 also syncs to Mem0's cloud API so memories can follow you across machines. Without a key, nothing leaves your machine.
configMEM0_BASE_URL
configMEM0_USER_IDdefault
configQUIET_MODE
🔐 secretR3CALL_API_KEY
configR3CALL_API_URL
configR3CALL_USER_ID
configTERM
🔐 secretMCP_AUTH_TOKEN
configMCP_USER_ID
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployREDIS_URL
deployPORT
// quality suggestions

Secrets not logged

4 secret values sent to error

Redact or omit secret values from log output.

Production dependencies are patched

0 critical, 1 high severity in production deps — axios@1.17.0 (high), axios@1.17.0 (medium)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dependency freshness

10/33 production deps abandoned (no release in 2+ years): @types/meow@2022-06-13 (4.2y), blessed-contrib@2022-06-13 (4.2y), ink-big-text@2023-04-05 (3.4y)

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: b6bb7e5999415a36ac90ad7d4e64975a865f7a4f
code hash: c3580cf6b8135df9a6698a8d89c8b1bffbb2622fc2283180b240bcc03099949a
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