# toss (mcpb · toss.mcpb)

Send files to your own devices and friends, peer to peer and end-to-end encrypted.

- Trust score: 43/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- mcpb · `toss.mcpb`: 43/100 (this document), [markdown](https://verifymcp.io/servers/plamen-g-toss/toss.md), [page](https://verifymcp.io/servers/plamen-g-toss/toss)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/plamen-g/toss/releases/download/v0.3.2/toss.mcpb`
- Transport: `stdio`
- SHA-256: `0f325919f20cb173fa5a3f9921b3a853930fd40c7ac0930be00494e4eb3968f0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-04.

- **Supply Chain Security**: 0/100
  - No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.
  - Known CVEs could not be checked: we found no dependency list to check in this bundle: either it runs a compiled binary, whose bundled manifests we do not read, or none of the package.json, requirements.txt, pyproject.toml or uv.lock files it ships for its runtime declares a dependency we can read (a requirements.txt that only points at a setup.py project, a local path, or a nested requirements file we cannot follow counts as none).
  - Install-script risk not yet assessed.
  - Dependency health could not be checked: we found no dependency list to check in this bundle: either it runs a compiled binary, whose bundled manifests we do not read, or none of the package.json, requirements.txt, pyproject.toml or uv.lock files it ships for its runtime declares a dependency we can read (a requirements.txt that only points at a setup.py project, a local path, or a nested requirements file we cannot follow counts as none).
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 4 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 73/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 323 tokens (~80/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 17/100
  - Stability observed for 5 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the toss MCP server?

toss ships as an MCPB bundle, a single file you download and open in an MCP host that supports MCPB bundles, such as Claude Desktop. The host reads the launch command from the bundle's own manifest, so there is no command to copy. Before opening it, check the file's SHA-256 matches the one the MCP registry declares for it, 0f325919f20cb173fa5a3f9921b3a853930fd40c7ac0930be00494e4eb3968f0; the commands to do that are on this page. If it does not match, do not open it.

- Download bundle: `https://github.com/plamen-g/toss/releases/download/v0.3.2/toss.mcpb`
- SHA-256: `0f325919f20cb173fa5a3f9921b3a853930fd40c7ac0930be00494e4eb3968f0`

### Verify on macOS / Linux

```bash
echo "0f325919f20cb173fa5a3f9921b3a853930fd40c7ac0930be00494e4eb3968f0  toss.mcpb" | shasum -a 256 -c
```

### Verify on Windows (PowerShell)

```powershell
(Get-FileHash -Algorithm SHA256 .\toss.mcpb).Hash -eq "0f325919f20cb173fa5a3f9921b3a853930fd40c7ac0930be00494e4eb3968f0"
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 43, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 42, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 41, +1)

No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 40)

First indexed and scored.

## MCP tools (4)

### `list_devices` (~21 tokens)

List the devices paired with toss. send_files takes these names.

### `received_files` (~45 tokens)

List what arrived on this computer through toss lately, newest first: files from paired devices and from the phone page, with where they were saved. Open them with your own file tools.

### `send_files` (~112 tokens)

Send files or folders to a paired device, end-to-end encrypted. Someone on the device accepts them first, unless it takes files from here without asking. Files from outside the folders the user lets you send from, and files that look like secrets, need the user's yes, which toss asks for. Only send what the user asked to send.

Input parameters:

- `device` (string, required): The paired device to send to, as list_devices names it.
- `paths` (array, required): Absolute paths of the files and folders to send.

### `show_on_phone` (~97 tokens)

Offer files to the user's phone, with no app on the phone: toss's window shows a QR code, and the phone's camera opens a page that downloads them, over the same Wi-Fi as this computer. Files, not folders. As with send_files, only offer what the user asked for; toss asks the user first where needed.

Input parameters:

- `paths` (array, required): Absolute paths of the files to offer (files, not folders).

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/plamen-g-toss/toss#diagnostics

## Score history

- 2026-11-04: 43
- 2026-11-03: 42
- 2026-11-02: 42
- 2026-11-01: 41
- 2026-10-31: 41
- 2026-10-30: 40

## Common questions

### What is the toss MCP server?

toss is an MCP server listed in the public MCP registry as io.github.plamen-g/toss. Send files to your own devices and friends, peer to peer and end-to-end encrypted. This page covers its MCPB bundle (https://github.com/plamen-g/toss/releases/download/v0.3.2/toss.mcpb).

### Is the toss MCP server safe to use?

toss scores 43 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the toss MCP server expose?

toss exposes 4 tools: list_devices, received_files, send_files, show_on_phone. Their descriptions and schemas cost roughly 275 tokens of context every time the server is loaded.

### What licence is the toss MCP server under?

toss declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- Repository: https://github.com/plamen-g/toss
- Changelog RSS feed: https://verifymcp.io/servers/plamen-g-toss/toss.xml
- Changelog JSON feed: https://verifymcp.io/servers/plamen-g-toss/toss.json
- HTML version of this page: https://verifymcp.io/servers/plamen-g-toss/toss