Hippocampus

Open-source MCP memory server providing persistent, cross-platform context for AI tools via a knowledge graph with encrypted storage.

→ karrolcia/hippocampus · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 7 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 2 credentials: HIPPO_AGENT_TOKEN, HIPPO_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretHIPPO_AGENT_TOKEN

configHIPPO_CONTEXT_MAX_OBSERVATIONS— No 100 Max observations in hippocampus://context resource

configHIPPO_DB_PATH— No ./data/hippocampus.db Database file location

configHIPPO_ENDPOINT

configHIPPO_KEYCHAIN_ACCOUNT

configHIPPO_KEYCHAIN_SERVICE

configHIPPO_OAUTH_ISSUER— fly secrets set =https://<your-app>.fly.dev

configHIPPO_OAUTH_PASSWORD_HASH— output of the hash command above>

configHIPPO_OAUTH_USER— fly secrets set =admin

configHIPPO_PASSPHRASE— any-secret-phrase-you-want

🔐 secretHIPPO_TOKEN— No — Bearer token for local dev (skip OAuth)

configHOST— No 0.0.0.0 Bind address

configPORT— No 3000 Server port

configRATE_LIMIT_RECALL— No 60 Read rate limit per minute

configRATE_LIMIT_REMEMBER— No 20 Write rate limit per minute

configTRANSFORMERS_CACHE— No System default Embedding model cache directory

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/karrolcia-hippocampus-gmebo2)](https://m8ven.ai/mcp/karrolcia-hippocampus-gmebo2)

commit: 534f3f095fdaa8a7d9ec2dbfe10d59bcdd49f6fa

code hash: 84c917224587ea09bee79f4252cf505407358f31180b2d80bc8ac2d46d164782

verified: 6/9/2026, 10:42:00 AM

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