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

Back to MCP Trust IndexM8ven
C
Emerging
74/100
8 days ago

Memento

Memento is a local-first, open-source MCP middleware that gives AI agents persistent memory, proactive goal enforcement, and autonomous intelligence using a SQLite temporal graph with Reciprocal Rank Fusion retrieval.

→ JoyciAkira/memento· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

JoyciAkira

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings
✅
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: OPENAI_API_KEY, MEMENTO_UI_AUTH_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// 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.
configMEMENTO_HANDOFF_AUTO_CHECKPOINT_EVERY_N_EVENTSAuto-checkpoint frequency
configMEMENTO_DIREach project gets its own .memento/ directory with an isolated SQLite database. No context bleeding between projects. Configure via or per-project .cursor/mcp.json.
configMEMENTO_UIEnable local web UI (1/true)
configMEMENTO_UI_PORTLocal UI port
configMEMENTO_RULE_CONFIRMATIONRequire confirmation before applying coercion rules
configMEMENTO_EMBEDDING_BACKENDSet =none to disable embeddings. Memento falls back to FTS5-only search — no API key needed.
configMEMENTO_COERCION_REPORT
configMEMENTO_AUTONOMY_INTERVAL
🔐 secretOPENAI_API_KEYRequired for OpenAI embeddings and cognitive features
configOPENAI_BASE_URLOpenAI-compatible endpoint (e.g. OpenRouter)
configMEMENTO_KG_DB_PATH
configMEMENTO_CONFIG_DIR
configMEM0_MODELLLM model for cognitive features
configMEM0_EMBEDDING_MODELEmbeddings model
configMEMENTO_WRITE_SEARCH_TRACEWrite last_search.json trace on every search (1 to enable)
🔐 secretMEMENTO_UI_AUTH_TOKENAuth token for local web UI
configMEMENTO_DECAY_SEMANTICDecay λ for semantic memories (~200d half-life)
configMEMENTO_DECAY_EPISODICDecay λ for episodic memories (~50d half-life)
configMEMENTO_DECAY_WORKINGDecay λ for working memories (~14d half-life)
configMEMENTO_PROACTIVE_INJECTInject relevant memories on every tool call (0 to disable)
configMEMENTO_PROACTIVE_TOP_KNumber of memories to inject proactively
configMEMENTO_PROACTIVE_STRATEGY
configMEMENTO_PROACTIVE_MAX_TOKENS
configMEMENTO_SHARED_KG_PATHPath to a shared KG SQLite file (federation — multiple workspaces share one graph)
configMEMENTO_FEDERATION_SOCKETUnix socket path for push notifications between agents (replaces 30s WAL polling)
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

74/74 tools missing one or more hints — memento_set_autonomy (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); memento_autonomy_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); memento_autonomy_decisions (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +71 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

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.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/joyciakira/memento)](https://m8ven.ai/mcp/joyciakira/memento)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 36ee93ac50e8ba64c0c31661c1bf20eb860ed720
code hash: 9b33ae903fbbe5e4603465592bd038d9a28c22e3cc6646e5d31cd2f56d422e02
verified: 9/2/2026, 8:02:47 AM
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client