Sync MCP Server (synchronicity-labs/mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 2 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100

Sync MCP Server

Enables AI agents to create lipsync videos, manage assets, and check generation status via the Sync API.

→ synchronicity-labs/mcp-server· 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

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Who stands behind it

synchronicity-labs

Source: Glama

Is this your MCP?

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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: OAUTH_REGISTRATION_SECRET. We can’t prove the destination matches the brand the credential belongs to.
🔐
You'll be asked for 3 credentials: OAUTH_REGISTRATION_SECRET, OPENAI_APPS_CHALLENGE_TOKEN, SYNC_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 low

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

lowvitest@4.1.0GHSA-82fw-gwwq-j7x9

Vitest: Path Traversal / Arbitrary File Read via @vitest/mocker Redirect Mock

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.
configGIT_SHA
configHOSTNAME
configK_REVISION
configMCP_ISSUER_URLOAuth issuer URL (HTTP transport only) —
🔐 secretOAUTH_REGISTRATION_SECRETShared secret for client registration (HTTP transport only) —
🔐 secretOPENAI_APPS_CHALLENGE_TOKEN
configPORTER_TAG
🔐 secretSYNC_API_KEYOmit and the server will start a device auth flow on first run:
configSYNC_BASE_URLhttps://api.sync.so
// quality suggestions

All four hints declared on every tool

2/2 tools missing one or more hints — upload-media (missing: idempotentHint); create-lipsync (missing: idempotentHint). 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.

Secrets stay with their owner

1 secret sent to a request target we could not resolve (OAUTH_REGISTRATION_SECRET → dynamic) — often a configured endpoint, not necessarily third-party

Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.

Secrets not written to files

1 secret value written to files

Avoid persisting secrets to disk. Keep them in memory or your secret manager.

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/synchronicity-labs/mcp-server)](https://m8ven.ai/mcp/synchronicity-labs/mcp-server)
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commit: c27460c1fb5dd26b40f52c422a406dd156e9d697
code hash: 9f4e54ba68600fd8aabe428ecc1eddca74594145912db08c2bd8b5563f204500
view raw JSON →
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