SINT Protocol (sint-ai/sint-protocol) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 21 tools. No publisher has claimed this listing.

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

SINT Protocol

Security-enforcing MCP proxy that sits between an AI agent and any number of downstream MCP servers, intercepting every tool call through a capability-token policy gateway that can allow, deny, or escalate to human approval before the call reaches any real tool. It also exposes built-in operator tools for approval workflows, audit trail queries, token management, voice/HUD output, and hierarchical

→ sint-ai/sint-protocol· 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

Code 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

sint-ai

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
🚨
Known vulnerabilities in dependencies: 2 critical
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 1 credential: SINT_AGENT_PRIVATE_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies2 critical

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

criticalvitest@3.0.0GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

criticalvitest@3.0.0GHSA-9crc-q9x8-hgqq

Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

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.
configMODEL
configOPENAI_MODEL
configPAPERCLIP_AGENT_IDAgent ID for trajectory records
configPAPERCLIP_RUN_IDRun ID for trajectory records
configPAPERCLIP_TASK_IDTask ID for trajectory records
🔐 secretSINT_AGENT_PRIVATE_KEYagentPrivateKey — auto-generated Agent Ed25519 private key (hex)
configSINT_MCP_APPROVAL_TIMEOUTapprovalTimeoutMs --timeout 120000 How long to wait for human approval
configSINT_MCP_CONFIGPath to config file
configSINT_MCP_POLICYdefaultPolicy --policy cautious permissive \ cautious \ strict
configSINT_MCP_PORTport --port 3200 HTTP port (http transport only)
configSINT_MCP_TRANSPORTtransport --stdio / --sse stdio stdio \ sse
configSINT_SESSION_IDSession ID for the interface state manager
configSINT_TRAJECTORY_DIRDirectory for trajectory files (default: .sint/trajectories)
// quality suggestions

All four hints declared on every tool

21/21 tools missing one or more hints — sint__delegate_to_agent (missing: readOnlyHint); sint__list_delegations (missing: destructiveHint); sint__revoke_delegation_tree (missing: readOnlyHint), +18 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.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Dev dependencies

2 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

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 3 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/sint-ai/sint-protocol)](https://m8ven.ai/mcp/sint-ai/sint-protocol)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 2461a911b8c3d7ed9da3f7662b33678f688eb826
code hash: 60af7672ca4235be64f7bf07027748de2d2dd000900b3807908963ae4c33a6f6
verified: 8/18/2026, 7:12:38 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