# WriteHero: LinkedIn post checker (remote · writehero.io)

Check, format and preview LinkedIn posts: limits, see-more cut, hooks, AI-sounding phrases.

- Trust score: 74/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `writehero.io`: 74/100 (this document), [markdown](https://verifymcp.io/servers/io-writehero-linkedin/api-mcp.md), [page](https://verifymcp.io/servers/io-writehero-linkedin/api-mcp)

## Channel facts

- Endpoint: `https://writehero.io/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - 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**: 75/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 794 tokens (~132/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 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.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 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 WriteHero: LinkedIn post checker MCP server?

WriteHero: LinkedIn post checker is a hosted endpoint at https://writehero.io/api/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 io-writehero-linkedin 'https://writehero.io/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "io-writehero-linkedin": {
      "url": "https://writehero.io/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "io-writehero-linkedin": {
      "type": "http",
      "url": "https://writehero.io/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.io-writehero-linkedin]
url = "https://writehero.io/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "io-writehero-linkedin": {
      "type": "remote",
      "url": "https://writehero.io/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add io-writehero-linkedin --url 'https://writehero.io/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  io-writehero-linkedin:
    url: "https://writehero.io/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "io-writehero-linkedin": {
      "Transport": "http",
      "Url": "https://writehero.io/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add io-writehero-linkedin -t streamable-http -u 'https://writehero.io/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "io-writehero-linkedin": {
      "type": "http",
      "url": "https://writehero.io/api/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.

### 2026-11-04 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 73, +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.

### 2026-10-30 (score 72, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-29 (score 71)

First indexed and scored.

## MCP tools (6)

### `check_linkedin_post` (~81 tokens)

Check a LinkedIn post

Check a LinkedIn post before publishing: character count against LinkedIn's 3000-character limit, the text likely shown before "see more" on desktop, a hook score, Markdown that LinkedIn will not render, placeholders, and phrases that read as AI-written. Returns concrete issues to fix.

Input parameters:

- `post` (string, required): The full post text.

### `format_linkedin_post` (~85 tokens)

Format a post for LinkedIn

Convert Markdown into text that pastes cleanly into LinkedIn: **bold** and headings become Unicode bold, *italic* becomes Unicode italic, list markers become bullets, Markdown links become plain URLs. Optionally replaces em dashes.

Input parameters:

- `post` (string, required): Post text, Markdown allowed.
- `replace_em_dashes` (boolean): Replace em dashes with commas.

### `style_linkedin_text` (~83 tokens)

Bold, italic or strikethrough text

Restyle a short piece of text with Unicode letters that keep their look when pasted into LinkedIn (bold, italic, bold italic, serif, cursive, strikethrough, underline). Use sparingly; screen readers may read styled letters poorly.

Input parameters:

- `style` (string): Style to apply.
- `text` (string, required): The words to restyle.

### `generate_linkedin_hooks` (~114 tokens)

LinkedIn hook ideas

Opening-line templates for a LinkedIn post, filled with the user's topic, audience and result. Anything the user has not supplied stays in [brackets] to replace with a real detail; nothing is invented.

Input parameters:

- `audience` (string): Who the post is for, e.g. founders.
- `result` (string): A real result the user can back up, e.g. hired 4 engineers in 30 days.
- `topic` (string, required): What the post is about, e.g. hiring engineers.

### `generate_linkedin_headlines` (~158 tokens)

LinkedIn headline options

Profile headline options built only from the user's role, audience, outcome, proof and keywords. Every option fits LinkedIn's 220-character headline limit. Does not change the profile.

Input parameters:

- `audience` (string): Who the user helps.
- `goal` (string): clients: win clients; job: get hired; general: both.
- `keywords` (string): Skills people search for.
- `outcome` (string): The result they deliver, e.g. book more sales calls.
- `proof` (string): A credential or result they can verify.
- `role` (string, required): Current or target job title.
- `tone` (string): warm phrases the value as "Helping..."; plain and bold as "I help...".

### `preview_linkedin_post` (~118 tokens)

Preview a LinkedIn post

Return a link to an approximate preview of the post in the LinkedIn feed on mobile and desktop, including about where "see more" cuts it. Pass author_name and author_headline when you know them. Opening the link saves and publishes nothing. The post text travels in the link, so share it only with people who should read the draft.

Input parameters:

- `author_headline` (string): Headline shown under the name.
- `author_name` (string): Name shown on the preview.
- `post` (string, required): The post text.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/io-writehero-linkedin/api-mcp#diagnostics

## Score history

- 2026-11-04: 74
- 2026-11-03: 73
- 2026-11-02: 73
- 2026-11-01: 73
- 2026-10-31: 72
- 2026-10-30: 72
- 2026-10-29: 71

## Common questions

### What is the WriteHero: LinkedIn post checker MCP server?

WriteHero: LinkedIn post checker is an MCP server listed in the public MCP registry as io.writehero/linkedin. Check, format and preview LinkedIn posts: limits, see-more cut, hooks, AI-sounding phrases. This page covers its hosted endpoint (https://writehero.io/api/mcp).

### Is the WriteHero: LinkedIn post checker MCP server safe to use?

WriteHero: LinkedIn post checker scores 74 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 WriteHero: LinkedIn post checker MCP server expose?

WriteHero: LinkedIn post checker exposes 6 tools: check_linkedin_post, format_linkedin_post, style_linkedin_text, generate_linkedin_hooks, generate_linkedin_headlines, preview_linkedin_post. Their descriptions and schemas cost roughly 639 tokens of context every time the server is loaded.

### Does the WriteHero: LinkedIn post checker MCP server require authentication?

No. We connected to WriteHero: LinkedIn post checker without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the WriteHero: LinkedIn post checker MCP server still maintained?

WriteHero: LinkedIn post checker 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://writehero.io/api/mcp
- Website: https://writehero.io/linkedin-mcp
- Changelog RSS feed: https://verifymcp.io/servers/io-writehero-linkedin/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/io-writehero-linkedin/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/io-writehero-linkedin/api-mcp