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No-sign-up shared clipboard that lets people and AI agents move text and images across devices via room codes.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 7 days ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The Clippy MCP server exposes 9 tools, focused primarily on general-purpose capabilities. Its published description reads: "No-sign-up shared clipboard that lets people and AI agents move text and images across devices via room codes". It communicates over Streamable HTTP using the 2026-07-28 protocol revision, and does not require authorization to connect. MCPGrade currently rates Clippy F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Tool input schema requests a secret" and "Data-exfiltration parameters". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check Clippy's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add Clippy to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://useclippy.cc/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Create a brand-new Clippy room and get back its 6-character code, a private owner_token, and a share URL. Use this when you want a fresh shared clipboard to push content to a user (hand them the URL)
Post a piece of text to a Clippy room so it appears on every device and agent watching that room. The room is created automatically if it does not exist yet. Subscribed devices receive a push notifica
Post one or more images (PNG, JPEG, GIF, or WEBP) to a Clippy room so they appear on every device watching it, optionally with a text caption. Pass each image as a base64 string or a data: URI. The ro
Read the items in a Clippy room (newest first). Use this to pick up text a user or another agent left for you, or to see what is currently in a shared room. Pass `since` (a millisecond timestamp from
Check whether a Clippy room exists, whether it is password-protected, and how many items it holds — without reading the contents. Handy before deciding to read or write, or to confirm a code a user ga
Edit the text of an existing item in a Clippy room, identified by its item id (the `id` field returned by store-item / list-items). Image bytes are immutable; this changes only the text.
Delete a single item from a Clippy room by its item id (the `id` returned by store-item / list-items). Any images attached to the item are removed too. This cannot be undone.
Delete ALL items in a Clippy room (and their images). Use with care — this wipes everything shared in the room and cannot be undone. The room itself continues to exist and can be reused.
Lock or unlock a Clippy room. Requires the room owner_token (returned by create-room). Pass a password to lock the room; pass an empty password to remove the lock. Only the owner can change this.
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: create-room-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: store-item-tool
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
ype":"string"},"password":{"description":"Required only if the room is pRecommendationRemove side-channel parameters; constrain tool inputs.
tool: store-item-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: store-image-tool
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
ype":"string"},"password":{"description":"Required only if the room is pRecommendationRemove side-channel parameters; constrain tool inputs.
tool: store-image-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: list-items-tool
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
pe":"integer"},"password":{"description":"Required only if the room is pRecommendationRemove side-channel parameters; constrain tool inputs.
tool: list-items-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: update-item-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: delete-item-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: clear-room-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
tool: set-room-password-tool
The input schema declares a parameter that asks the caller to hand over a password, key, token, or other secret — a credential-harvest / token-passthrough risk. (Bare pagination `token` params are excluded.)
parameter "password"RecommendationNever pass secrets as tool arguments; authenticate out-of-band and remove credential parameters from the schema.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: create-room-tool
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "create-room-tool"RecommendationScope tools to the minimum needed.
tool: store-item-tool
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "store-item-tool"RecommendationScope tools to the minimum needed.
tool: store-image-tool
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "store-image-tool"RecommendationScope tools to the minimum needed.
tool: update-item-tool
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "update-item-tool"RecommendationScope tools to the minimum needed.
tool: delete-item-tool
The server advertises open-world / broadly-scoped capabilities.
annotations.destructiveHint = trueRecommendationScope tools to the minimum needed.
tool: clear-room-tool
The server advertises open-world / broadly-scoped capabilities.
annotations.destructiveHint = trueRecommendationScope tools to the minimum needed.
tool: set-room-password-tool
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "set-room-password-tool"RecommendationScope tools to the minimum needed.
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