# io.github.reinlainer/postmd-mcp-server (npm · postmd-mcp-server)

Publish Markdown to PostMD and get a shareable web page

- Trust score: 85/100 (high trust)
- Change this week: +28
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `postmd.turink.com`: 61/100, [markdown](https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd.md), [page](https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd)
- npm · `postmd-mcp-server`: 85/100 (this document), [markdown](https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd-mcp-server.md), [page](https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `postmd-mcp-server`
- Version: `2.4.0`
- Transport: `stdio`

## 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 2026-09-20.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 96 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to reinlainer/postmd-mcp-server).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 5 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 3002 tokens (~142/item across 21 items; 21 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 61/100
  - Stability check failed: the tool surface changed between 2.1.1 and 2.4.0: 0 tool removals, 1 breaking changes, 0 additions.
- **Tool Coverage**: 90/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 71% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 5 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "postmd_create_document" implies "publish" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 22 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 io.github.reinlainer/postmd-mcp-server server?

io.github.reinlainer/postmd-mcp-server runs locally as an npm package, launched with npx -y postmd-mcp-server. 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 reinlainer-postmd-mcp-server -- npx -y postmd-mcp-server
```

### Cursor

```json
{
  "mcpServers": {
    "reinlainer-postmd-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "postmd-mcp-server"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "reinlainer-postmd-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "postmd-mcp-server"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add reinlainer-postmd-mcp-server -- npx -y postmd-mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "reinlainer-postmd-mcp-server": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "postmd-mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add reinlainer-postmd-mcp-server --command npx --arg -y --arg postmd-mcp-server
```

### Hermes

```yaml
mcp_servers:
  reinlainer-postmd-mcp-server:
    command: "npx"
    args: ["-y", "postmd-mcp-server"]
```

### Netclaw

```json
{
  "McpServers": {
    "reinlainer-postmd-mcp-server": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "postmd-mcp-server"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add reinlainer-postmd-mcp-server -t stdio -c npx -a -y postmd-mcp-server
```

### Other

```json
{
  "mcpServers": {
    "reinlainer-postmd-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "postmd-mcp-server"
      ]
    }
  }
}
```

## 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.

### 2026-09-19 (score 85, +1)

No change was recorded against any check on this day. Stability & Change Management went from 54 to 58.

### 2026-09-16 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 44 to 48.

### 2026-09-15 (score 83, +26)

- [security regression] Tool safety: pass → unverified
- [security regression] Stability: fail → unverified
- [security improvement] Malware scan: unverified → pass
- [security improvement] Provenance: fail → pass
- [security] The attested source repository moved: reinlainer/postmd-mcp-server
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified
- [functional] Package version: 2.3.0 → 2.4.0

### 2026-09-13 (score 57, +1)

No change was recorded against any check on this day. Stability & Change Management went from 34 to 38.

### 2026-09-11 (score 56, +1)

No change was recorded against any check on this day. Stability & Change Management went from 28 to 31.

### 2026-09-09 (score 55, +1)

No change was recorded against any check on this day. Stability & Change Management went from 21 to 24.

### 2026-09-07 (score 54, +1)

No change was recorded against any check on this day. Stability & Change Management went from 14 to 18.

### 2026-09-04 (score 53, −15)

- [security regression] Malware scan: pass → unverified
- [security regression] Stability: 0.07 → fail
- [functional] Schema quality: excellent → good
- [functional] Package version: 2.2.0 → 2.3.0
- [functional] Package version: 2.2.0 → 3.0.0

## MCP tools (21)

### `postmd_create_document` (~294 tokens)

Publish Markdown as a PostMD web page. No API key required — anyone can publish. Returns docCode and data.shareUrl; hand shareUrl to people. Without a key the document is anonymous: data.retainedUntil is when it is deleted and data.controlToken is the only way to update or delete it, shown once and never reissued — report both to the person. With an API key the document belongs to that member, has no expiry, needs no token and can collect notes; groupId files it into that group instead of the default one (key with documents:write).

Input parameters:

- `fileName` (string): Upload filename, must end in .md. Default document.md.
- `groupId` (number): File the document in this group instead of the default group (needs an API key).
- `markdown` (string, required): Full Markdown document as one UTF-8 string (the entire source, not a summary).
- `password` (string): Readers must supply this password to see the content.
- `shareEndDate` (string): yyyyMMdd. The document stops being served after this date. Omit for no end date.
- `title` (string): Shown in the viewer and link previews. Defaults to fileName without .md.
- `viewerStyle` (string): Viewer theme: readable (default), github, minimal, report, pamphlet or dark. Unknown values fall back to readable.

### `postmd_create_document_from_file` (~227 tokens)

Same as postmd_create_document, but reads the Markdown from filePath on the machine running this MCP server — use it for large files instead of pasting the body. Without an API key it returns data.controlToken and data.retainedUntil, same as above.

Input parameters:

- `fileName` (string): Upload filename. Defaults to the basename of filePath.
- `filePath` (string, required): Path to a .md file on the MCP server host, read as UTF-8. Prefer an absolute path.
- `groupId` (number): File the document in this group instead of the default group (needs an API key).
- `password` (string): Readers must supply this password to see the content.
- `shareEndDate` (string): yyyyMMdd. The document stops being served after this date. Omit for no end date.
- `title` (string): Defaults to the file name without .md.
- `viewerStyle` (string): Viewer theme: readable (default), github, minimal, report, pamphlet or dark. Unknown values fall back to readable.

### `postmd_create_documents_from_files` (~175 tokens)

Publish several .md files in one call (bulk upload). Requires an API key with documents:write. The outer resultCode is 200 even if some files failed — check data.succeeded and each entry in data.results.

Input parameters:

- `filePaths` (array, required): Paths to .md files on the MCP server host. Each becomes its own document.
- `groupId` (number): File every document in this group instead of the default group.
- `password` (string): Readers must supply this password to see the content.
- `shareEndDate` (string): yyyyMMdd. The document stops being served after this date. Omit for no end date.
- `viewerStyle` (string): Viewer theme: readable (default), github, minimal, report, pamphlet or dark. Unknown values fall back to readable.

### `postmd_get_document` (~78 tokens)

Get document metadata by docCode: title, fileName, hasPassword, shareEndDate, viewerStyle, timestamps. Public — no API key needed. Content is not included; use postmd_get_document_raw for the Markdown source.

Input parameters:

- `docCode` (string, required): Document code, e.g. P-123-456-789.

### `postmd_get_document_raw` (~65 tokens)

Get the stored Markdown source of a document. Public — no API key needed. Password-protected documents need `password`; expired documents cannot be read.

Input parameters:

- `docCode` (string, required)
- `password` (string): Plain document password, if the document has one.

### `postmd_update_document` (~370 tokens)

Update a document. Requires an API key with documents:write for a document you own, or `controlToken` for an anonymously published one. Include `markdown` to replace the stored content; any metadata field replaces that field. clearPassword / clearShareEndDate remove the password / end date. Updating does not push back the deletion date of an anonymous document. Replacing the content requires notesOnReplace.

Input parameters:

- `clearPassword` (boolean): true removes the password.
- `clearShareEndDate` (boolean): true removes the end date, making sharing open-ended.
- `controlToken` (string): Control token from an anonymous publish answer (pmt_...). Lets you act on that one document without an API key.
- `docCode` (string, required)
- `fileName` (string): Upload filename when replacing content. Default document.md.
- `markdown` (string): Full new Markdown body as one UTF-8 string. Omit if only metadata changes.
- `notesOnReplace` (string): Required when replacing the content. Notes are located by the text they quote, so replacing the body moves or loses where they point: a note whose quote is gone loses its place in the body, and one w…
- `password` (string): Readers must supply this password to see the content.
- `shareEndDate` (string): yyyyMMdd. The document stops being served after this date. Omit for no end date.
- `title` (string)
- `viewerStyle` (string): Viewer theme: readable (default), github, minimal, report, pamphlet or dark. Unknown values fall back to readable.

### `postmd_update_document_from_file` (~329 tokens)

Same as postmd_update_document, but reads the new Markdown from filePath on the machine running this MCP server. Takes `controlToken` the same way.

Input parameters:

- `clearPassword` (boolean): true removes the password.
- `clearShareEndDate` (boolean): true removes the end date, making sharing open-ended.
- `controlToken` (string): Control token from an anonymous publish answer (pmt_...). Lets you act on that one document without an API key.
- `docCode` (string, required)
- `fileName` (string): Upload filename. Defaults to the basename of filePath.
- `filePath` (string, required): Path to a .md file on the MCP server host, read as UTF-8. Prefer an absolute path.
- `notesOnReplace` (string, required): Required when replacing the content. Notes are located by the text they quote, so replacing the body moves or loses where they point: a note whose quote is gone loses its place in the body, and one w…
- `password` (string): Readers must supply this password to see the content.
- `shareEndDate` (string): yyyyMMdd. The document stops being served after this date. Omit for no end date.
- `title` (string)
- `viewerStyle` (string): Viewer theme: readable (default), github, minimal, report, pamphlet or dark. Unknown values fall back to readable.

### `postmd_delete_document` (~104 tokens)

Delete a document. Requires an API key with documents:write for a document you own, or `controlToken` for an anonymously published one. There is no endpoint to undo this: the document stops being served at once and its stored content is erased about a month later.

Input parameters:

- `controlToken` (string): Control token from an anonymous publish answer (pmt_...). Lets you act on that one document without an API key.
- `docCode` (string, required)

### `postmd_upload_attachment` (~114 tokens)

Upload an image or PDF to reference from a document. Requires an API key with documents:write. Allowed types: png, jpg, jpeg, gif, webp, svg, bmp, pdf. Use the returned data.url as the image/link target in your Markdown, then publish the Markdown with postmd_create_document.

Input parameters:

- `fileName` (string): Upload filename. Defaults to the basename of filePath.
- `filePath` (string, required): Path to the file on the MCP server host. Prefer an absolute path.

### `postmd_list_notes` (~91 tokens)

List notes and highlights on a document: your own plus every SHARED one, newest first. Requires an API key with documents:read. Each note carries mine and manageable flags — trust them instead of re-deriving permissions. Pass `password` for a password-protected document.

Input parameters:

- `docCode` (string, required)
- `password` (string): Plain document password, if the document has one.

### `postmd_add_note` (~255 tokens)

Attach a note or highlight to a document. Requires an API key with documents:write. Give `content` for a note, `color` alone for a colour-only highlight (then `quotedContent` is required — a highlight must point at a passage). Visibility comes from ownership: on the key member's own document choose PRIVATE (only they see it) or SHARED; on anyone else's document every note is SHARED, so omit scope. Documents nobody owns — anonymous uploads and service-owned pages — take no notes at all.

Input parameters:

- `color` (string): YELLOW, GREEN, BLUE or PURPLE.
- `content` (string): Note text, up to 4000 characters. Omit for a colour-only highlight.
- `docCode` (string, required)
- `password` (string): Plain document password, if the document has one.
- `quotedContent` (string): Passage of the body this note points to, up to 4000 characters. Matched by text, so it survives edits elsewhere.
- `scope` (string): PRIVATE (default) or SHARED.
- `textStart` (number): Character offset where the quote starts in the body. Optional; speeds up re-anchoring.

### `postmd_update_note` (~119 tokens)

Edit a note you wrote. Requires an API key with documents:write. Omitting scope keeps the current one; a scope you do send follows the ownership rule above. The note must keep text or a colour.

Input parameters:

- `color` (string): YELLOW, GREEN, BLUE or PURPLE.
- `content` (string)
- `docCode` (string, required)
- `noteId` (number, required)
- `quotedContent` (string)
- `scope` (string): PRIVATE or SHARED. Omit to keep the current scope.

### `postmd_resolve_note` (~82 tokens)

Mark a note as settled, or undo it with resolved=false. Meaningful on SHARED notes; the author or the document owner may set it. Requires an API key with documents:write.

Input parameters:

- `docCode` (string, required)
- `noteId` (number, required)
- `resolved` (boolean, required): true marks it settled; false reopens it.

### `postmd_delete_note` (~53 tokens)

Delete a note: your own, or a SHARED note on a document you own. Requires an API key with documents:write.

Input parameters:

- `docCode` (string, required)
- `noteId` (number, required)

### `postmd_list_my_notes` (~43 tokens)

List every note the key's member wrote, across all documents, with docCode and documentTitle beside each one. Requires an API key with documents:read.

### `postmd_list_groups` (~53 tokens)

List groups the key's member belongs to. Requires an API key with groups:read. Paged.

Input parameters:

- `page` (number): 1-based page number.
- `size` (number): Items per page.

### `postmd_list_group_documents` (~135 tokens)

List documents in a group. Requires an API key with groups:read and documents:read. Paged; q searches title and file name (substring, case-insensitive).

Input parameters:

- `folderId` (number): Only documents filed in this folder.
- `groupId` (number, required)
- `page` (number)
- `q` (string): Search text for title and file name.
- `rootOnly` (boolean): true → only documents not in any folder.
- `size` (number)
- `sort` (string): recent (default), oldest, name, name_desc, created or created_asc.

### `postmd_move_document_to_group` (~88 tokens)

Move a document you own into a group you can use, optionally into a folder of that group. A document belongs to exactly one group, so this replaces its current group. Requires an API key with documents:write.

Input parameters:

- `docCode` (string, required)
- `folderId` (number): File it into this folder of that group.
- `groupId` (number, required)

### `postmd_create_group` (~63 tokens)

Create a group. Requires an API key with groups:write. Documents can then be filed into it and members invited from the web app.

Input parameters:

- `expireDate` (string): yyyyMMdd. The group stops working after this date.
- `name` (string, required)

### `postmd_update_group` (~76 tokens)

Rename a group or change its expiry. Owner only. Requires an API key with groups:write. clearExpireDate removes the expiry.

Input parameters:

- `clearExpireDate` (boolean): true removes the expiry date.
- `expireDate` (string): yyyyMMdd.
- `groupId` (number, required)
- `name` (string)

### `postmd_delete_group` (~48 tokens)

Delete a group. Owner only; the default group cannot be deleted. Documents in it are not deleted. Requires an API key with groups:write.

Input parameters:

- `groupId` (number, required)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd-mcp-server#diagnostics

## Score history

- 2026-09-20: 85
- 2026-09-19: 85
- 2026-09-18: 84
- 2026-09-17: 84
- 2026-09-16: 84
- 2026-09-15: 83
- 2026-09-14: 57
- 2026-09-13: 57
- 2026-09-12: 56
- 2026-09-11: 56
- 2026-09-10: 55
- 2026-09-09: 55
- 2026-09-08: 54
- 2026-09-07: 54
- 2026-09-06: 53
- 2026-09-05: 53
- 2026-09-04: 53
- 2026-09-03: 68
- 2026-09-02: 68
- 2026-09-01: 68

## Common questions

### What is the io.github.reinlainer/postmd-mcp-server server?

io.github.reinlainer/postmd-mcp-server is listed in the public MCP registry as io.github.reinlainer/postmd-mcp-server. Publish Markdown to PostMD and get a shareable web page. This page covers its npm package (postmd-mcp-server).

### Is the io.github.reinlainer/postmd-mcp-server server safe to use?

io.github.reinlainer/postmd-mcp-server scores 85 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 io.github.reinlainer/postmd-mcp-server server expose?

io.github.reinlainer/postmd-mcp-server exposes 21 tools: postmd_create_document, postmd_create_document_from_file, postmd_create_documents_from_files, postmd_get_document, postmd_get_document_raw, and 16 more. Their descriptions and schemas cost roughly 2,862 tokens of context every time the server is loaded.

### Is the io.github.reinlainer/postmd-mcp-server server still maintained?

io.github.reinlainer/postmd-mcp-server is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.reinlainer/postmd-mcp-server server under?

io.github.reinlainer/postmd-mcp-server 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

- npm package: https://www.npmjs.com/package/postmd-mcp-server
- Socket report: https://socket.dev/npm/package/postmd-mcp-server
- Repository: https://github.com/reinlainer/postmd-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd-mcp-server.xml
- Changelog JSON feed: https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd-mcp-server.json
- HTML version of this page: https://verifymcp.io/servers/reinlainer-postmd-mcp-server/postmd-mcp-server