# Handoff: Send Files to Users & Agents (remote · hand-off.space)

Send a file to a user or agent as a share link with expiry, max opens, approval, revoke and logs.

- Trust score: 69/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `hand-off.space`: 69/100 (this document), [markdown](https://verifymcp.io/servers/jueluddinsf-handoff/hand-off.md), [page](https://verifymcp.io/servers/jueluddinsf-handoff/hand-off)

## Channel facts

- Endpoint: `https://hand-off.space/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## 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 2026-11-05.

- **Endpoint Security**: 63/100
  - 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 (deny_share).
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 69/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 2298 tokens (~164/item across 14 items; 14 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 99/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 96% of tool parameters carry a description.
  - Structured output schemas are declared (36% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - All 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.
  - An AI judge read all 15 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Handoff: Send Files to Users & Agents MCP server?

Handoff: Send Files to Users & Agents is a hosted endpoint at https://hand-off.space/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 jueluddinsf-handoff 'https://hand-off.space/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "jueluddinsf-handoff": {
      "url": "https://hand-off.space/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "jueluddinsf-handoff": {
      "type": "http",
      "url": "https://hand-off.space/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.jueluddinsf-handoff]
url = "https://hand-off.space/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jueluddinsf-handoff": {
      "type": "remote",
      "url": "https://hand-off.space/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jueluddinsf-handoff --url 'https://hand-off.space/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  jueluddinsf-handoff:
    url: "https://hand-off.space/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "jueluddinsf-handoff": {
      "Transport": "http",
      "Url": "https://hand-off.space/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add jueluddinsf-handoff -t streamable-http -u 'https://hand-off.space/mcp'
```

### Other

```json
{
  "mcpServers": {
    "jueluddinsf-handoff": {
      "type": "http",
      "url": "https://hand-off.space/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.

### 2026-11-05 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 68, +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.

### 2026-10-31 (score 67, +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.

### 2026-10-30 (score 66, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-29 (score 66)

First indexed and scored.

## MCP tools (14)

### `share_file` (~343 tokens)

Share a file

Share a file in one call and get a download link. Pass name and content_text (or content_base64). Works without an API key: if none is sent, a new account is created and its api_key is returned once; save it to revoke the link or read the access log later. Default link: anyone with the link, expires in 7 days.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `audience` (string): Default anyone_with_link.
- `audience_value` (string): Required when audience is agent.
- `content_base64` (string): Standard or url-safe base64. A data:*;base64, prefix is stripped. Example: aGk=
- `content_text` (string): UTF-8 text. Pass exactly one of content_text or content_base64.
- `expires_in_hours` (number): Hours until the link expires. Default 168 (7 days).
- `max_opens` (integer): Successful downloads allowed. Omit for no limit.
- `mime` (string): MIME type. Inferred from the file name when omitted.
- `name` (string, required): File name with an extension. No slashes or control characters.
- `ref` (string): Optional attribution label. Lowercase letters, digits, dot, underscore, or hyphen. At most 64 characters.
- `requires_approval` (boolean): Default false. When true, downloads wait until the owner approves.

Output parameters:

- `api_key` (string)
- `expires_at` (string)
- `file_id` (string)
- `grant_id` (string)
- `max_opens`
- `next`
- `requires_approval` (boolean)
- `token_prefix` (string)
- `url` (string)

### `signup` (~145 tokens)

Create an account

Create a Handoff account and return an API key once. No Authorization header is required. Save api_key. On later calls send Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass api_key only if you cannot set headers. share_file can create this key for you. The key is a secret. Do not put it in a file you share.

Input parameters:

- `agent_id` (string): Optional label, unique across Handoff. Letters, numbers, underscore, and hyphen.
- `ref` (string): Optional attribution label. Lowercase letters, digits, dot, underscore, or hyphen. At most 64 characters.

Output parameters:

- `account_id` (string)
- `agent_id` (string)
- `api_key` (string)
- `caps` (object)
- `next` (object)

### `save_file` (~191 tokens)

Save a file

Save a private file for this account. Pass name and content_text or content_base64. Returns the file id and metadata. Does not share the file. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `content_base64` (string): Standard or url-safe base64. A data:*;base64, prefix is stripped. Example: aGk=
- `content_text` (string): UTF-8 text. Pass exactly one of content_text or content_base64.
- `mime` (string): MIME type. Inferred from the file name when omitted.
- `name` (string, required): File name with an extension. No slashes or control characters.

### `list_files` (~103 tokens)

List files

List this account's files, newest first, up to 1000. Use this to find a file_id before sharing. Returns metadata only, never bytes or download URLs. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…

### `create_share_link` (~274 tokens)

Create a share link

Create a controlled download link for a file you own. Use this when a person or another agent should fetch the file. The response includes url and token ONCE, plus expires_at and max_opens. Save the url immediately. Later status calls do not return it. When expires_in_hours is omitted, the link expires in 7 days. Download with GET on that url. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `audience` (string, required): anyone_with_link: whoever has the saved url. agent: only the registered agent_id in audience_value.
- `audience_value` (string): Required for agent: the recipient's registered agent_id. Example: their-agent
- `expires_in_hours` (number): Hours until the link expires. Default 168 (7 days) when omitted.
- `file_id` (string, required): File id returned by save_file or list_files.
- `max_opens` (integer): Successful downloads allowed. The next one is refused.
- `requires_approval` (boolean): When true, downloads wait until the owner approves the grant.

Output parameters:

- `expires_at` (string)
- `grant_id` (string)
- `max_opens`
- `token` (string)
- `token_prefix` (string)
- `url` (string)

### `get_share_status` (~123 tokens)

Get share status

Read an owned grant: token_prefix (not the secret), audience, approval, expiry, revocation, and open_count. Does not download the file and does not return the share URL. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `grant_id` (string, required): grant_id returned when the share was created.

### `approve_share` (~104 tokens)

Approve a share

Approve an owned grant that was created with requires_approval. Opens stay blocked until this succeeds. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `grant_id` (string, required): grant_id returned when the share was created.

### `deny_share` (~95 tokens)

Deny a share

Deny an owned grant. A denied grant stays blocked. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `grant_id` (string, required): grant_id of the share to deny.

### `revoke_share` (~105 tokens)

Revoke a share

Permanently revoke an owned share. Later downloads fail. This cannot be undone and does not delete the file. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `grant_id` (string, required): grant_id of the share to revoke.

### `get_access_log` (~111 tokens)

Get access log

Read the latest 1000 access attempts for an owned grant, including refused downloads. Use this to see whether a share was opened. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `grant_id` (string, required): grant_id of the share to audit.

### `fetch_shared_file` (~200 tokens)

Fetch a shared file

Download a file from a share url or token. Use this when you were given a Handoff url and need the bytes. Honors expiry, open limits, approval, and agent audience. anyone_with_link needs no key. An agent audience uses your API key. Files up to 1048576 bytes return content_base64, plus content_text when the file is text. Larger files are not inlined: the error includes the byte size and tells you to GET the url. A successful inline return counts as an open. A file over the inline limit does not.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `url_or_token` (string, required): Share url returned by create_share_link, or the 64-character token.

### `delete_file` (~106 tokens)

Delete a file

Delete a file you own. The bytes are removed and existing share links stop working. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `file_id` (string, required): File id returned by save_file, list_files, or share_file.

Output parameters:

- `deleted` (boolean)
- `file_id` (string)

### `list_shares` (~133 tokens)

List shares

List grants you own. Pass file_id to limit the list to one file. Returns grant_id, status, open_count, max_opens, expires_at, and audience. Does not return tokens or download urls. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `file_id` (string): Optional file id. Omit to list every grant on this account.

### `update_share` (~115 tokens)

Update share expiry

Set when an owned share expires. expires_in_hours is measured from now. Example: 168 for 7 days. Does not return the token. Requires your API key.

Input parameters:

- `api_key` (string): Secret API key from signup. Prefer Authorization: Bearer <api_key>, the bare key in Authorization, or X-Handoff-Api-Key. Pass this only when you cannot set headers. Do not write it into a file you sh…
- `expires_in_hours` (number, required)
- `grant_id` (string, required)

Output parameters:

- `audience` (string)
- `expires_at` (string|null)
- `file_id` (string)
- `grant_id` (string)
- `max_opens` (number|null)
- `open_count` (number)
- `status` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/jueluddinsf-handoff/hand-off#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 68
- 2026-11-03: 68
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 67
- 2026-10-30: 66
- 2026-10-29: 66

## Common questions

### What is the Handoff: Send Files to Users & Agents MCP server?

Handoff: Send Files to Users & Agents is an MCP server listed in the public MCP registry as io.github.jueluddinsf/handoff. Send a file to a user or agent as a share link with expiry, max opens, approval, revoke and logs. This page covers its hosted endpoint (https://hand-off.space/mcp).

### Is the Handoff: Send Files to Users & Agents MCP server safe to use?

Handoff: Send Files to Users & Agents scores 69 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 Handoff: Send Files to Users & Agents MCP server expose?

Handoff: Send Files to Users & Agents exposes 14 tools: share_file, signup, save_file, list_files, create_share_link, and 9 more. Their descriptions and schemas cost roughly 2,148 tokens of context every time the server is loaded.

### Does the Handoff: Send Files to Users & Agents MCP server require authentication?

No. We connected to Handoff: Send Files to Users & Agents without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Handoff: Send Files to Users & Agents MCP server still maintained?

Handoff: Send Files to Users & Agents is still listed as active in the MCP registry. We last reached this channel on 5 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://hand-off.space/mcp
- Repository: https://github.com/jueluddinsf/handoff-mcp
- Website: https://hand-off.space/
- Changelog RSS feed: https://verifymcp.io/servers/jueluddinsf-handoff/hand-off.xml
- Changelog JSON feed: https://verifymcp.io/servers/jueluddinsf-handoff/hand-off.json
- HTML version of this page: https://verifymcp.io/servers/jueluddinsf-handoff/hand-off