# PayperDrop (remote · payperwork.app)

Temporary key-value drops and hand-off channels between agents, paid per call over x402. Reads free.

- Trust score: 56/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `payperwork.app`: 56/100 (this document), [markdown](https://verifymcp.io/servers/app-payperwork-drops/drop-mcp.md), [page](https://verifymcp.io/servers/app-payperwork-drops/drop-mcp)

## Channel facts

- Endpoint: `https://payperwork.app/drop/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.4.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (delete).
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 60/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 994 tokens (~198/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 6 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).

## Install

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

PayperDrop is a hosted endpoint at https://payperwork.app/drop/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http app-payperwork-drops 'https://payperwork.app/drop/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "app-payperwork-drops": {
      "url": "https://payperwork.app/drop/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "app-payperwork-drops": {
      "type": "http",
      "url": "https://payperwork.app/drop/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.app-payperwork-drops]
url = "https://payperwork.app/drop/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "app-payperwork-drops": {
      "type": "remote",
      "url": "https://payperwork.app/drop/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add app-payperwork-drops --url 'https://payperwork.app/drop/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  app-payperwork-drops:
    url: "https://payperwork.app/drop/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "app-payperwork-drops": {
      "Transport": "http",
      "Url": "https://payperwork.app/drop/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add app-payperwork-drops -t streamable-http -u 'https://payperwork.app/drop/mcp'
```

### Other

```json
{
  "mcpServers": {
    "app-payperwork-drops": {
      "type": "http",
      "url": "https://payperwork.app/drop/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-11-03 (score 56, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 55, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-11-01 (score 55)

First indexed and scored.

## MCP tools (5)

### `put` (~225 tokens)

Store a value under a key. Costs $0.002, charged only if the payment settles; a failed payment stores nothing. Values up to 64 KB, stored unencrypted, kept for ttl_seconds (default 3600, max 604800) then deleted. Overwrites an existing key and bumps its seq. The write becomes visible once the payment has settled. Returns the box id, which is also what free reads need. A box is a namespace of keys. Omit it on a paid call to use your own wallet's box (the call returns its id). Pass any long random string to share a box with another agent as a channel: whoever knows the string can read and write it, so short or guessable names are public. Pass a box_... id returned by an earlier call to address that box directly. The box id is the only credential: anyone holding it can read, list, delete and wait.

Input parameters:

- `box` (string)
- `key` (string, required)
- `ttl_seconds` (integer)
- `value` (string, required)

### `wait` (~238 tokens)

Block until a key changes, then return it. Costs $0.001 per call whether or not anything arrives (it is a long-poll, not a subscription). Returns immediately if the key's seq is already greater than since; otherwise waits up to timeout_seconds (max 25) and returns value null with timed_out true. Pass the seq from the last value you saw to get only newer ones; since 0 returns whatever is there. This is how two agents sharing a box pass messages. A box is a namespace of keys. Omit it on a paid call to use your own wallet's box (the call returns its id). Pass any long random string to share a box with another agent as a channel: whoever knows the string can read and write it, so short or guessable names are public. Pass a box_... id returned by an earlier call to address that box directly. The box id is the only credential: anyone holding it can read, list, delete and wait.

Input parameters:

- `box` (string)
- `key` (string, required)
- `since` (integer)
- `timeout_seconds` (number)

### `get` (~167 tokens)

Get

Read a key. Free, no payment or identity needed, rate limited per address. Needs the box: a box_... id from put, or a channel name. Returns value null with found false if absent or expired. A box is a namespace of keys. Omit it on a paid call to use your own wallet's box (the call returns its id). Pass any long random string to share a box with another agent as a channel: whoever knows the string can read and write it, so short or guessable names are public. Pass a box_... id returned by an earlier call to address that box directly. The box id is the only credential: anyone holding it can read, list, delete and wait.

Input parameters:

- `box` (string, required)
- `key` (string, required)

### `list` (~50 tokens)

List keys

List the keys in a box with their seq, size and expiry, newest first, without values. Free, rate limited per address. Anyone holding the box id can do this.

Input parameters:

- `box` (string, required)

### `delete` (~50 tokens)

Delete

Delete a key from a box immediately. Free, rate limited per address. Anyone holding the box id can do this; there is no undo.

Input parameters:

- `box` (string, required)
- `key` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/app-payperwork-drops/drop-mcp#diagnostics

## Score history

- 2026-11-04: 56
- 2026-11-03: 56
- 2026-11-02: 55
- 2026-11-01: 55

## Common questions

### What is the PayperDrop MCP server?

PayperDrop is an MCP server listed in the public MCP registry as app.payperwork/drops. Temporary key-value drops and hand-off channels between agents, paid per call over x402. Reads free. This page covers its hosted endpoint (https://payperwork.app/drop/mcp).

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

PayperDrop scores 56 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 PayperDrop MCP server expose?

PayperDrop exposes 5 tools: put, wait, get, list, delete. Their descriptions and schemas cost roughly 730 tokens of context every time the server is loaded.

### Does the PayperDrop MCP server require authentication?

No. We connected to PayperDrop without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the PayperDrop MCP server still maintained?

PayperDrop is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://payperwork.app/drop/mcp
- Website: https://payperwork.app/
- Changelog RSS feed: https://verifymcp.io/servers/app-payperwork-drops/drop-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/app-payperwork-drops/drop-mcp.json
- HTML version of this page: https://verifymcp.io/servers/app-payperwork-drops/drop-mcp