Postals MCP vs PieterPost MCP
A side-by-side look at the Postals MCP and PieterPost MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Postals MCP for delivery work as a local process; choose PieterPost MCP for delivery over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Postals MCP when
- You need dedicated capabilities in the Delivery domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
POSTALS_API_KEY, POSTALS_SENDER_NAME, POSTALS_SENDER_ADDRESS, POSTALS_SENDER_CITY, POSTALS_SENDER_STATE, POSTALS_SENDER_ZIP, POSTALS_DEFAULT_CARD_IMAGE, POSTALS_TEST_MODE. - You want tools like
send_postcard, generate_message.
Choose PieterPost MCP when
- You need dedicated capabilities in the Delivery domain.
- You prefer a remote HTTP/SSE transport.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Delivery | Delivery |
| Quality signal | 55/100 · Good | 36/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | POSTALS_API_KEYPOSTALS_SENDER_NAMEPOSTALS_SENDER_ADDRESSPOSTALS_SENDER_CITYPOSTALS_SENDER_STATEPOSTALS_SENDER_ZIPPOSTALS_DEFAULT_CARD_IMAGEPOSTALS_TEST_MODE | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 2 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 2 | Not listed |
| Full listing | View Postals MCP | View PieterPost MCP |
Tools & capabilities
Postals MCP tools 2
send_postcardSend a physical handwritten postcard to a US mailing address. Postals prints it with real robotic handwriting (pen and ink) and mails it via USPS. Delivery in 3-5 business days. Cost: $4.99 per card. Provide the recipient's address, a message (max 400 chars), and optionally an image URL for the card front. If no image is provided, uses the configured default card.generate_messageGenerate a personalized handwritten message for a postcard based on context about the recipient. Returns a ready-to-use message you can pass directly to send_postcard. Uses AI if Cloudflare credentials are configured (CLOUDFLARE_ACCOUNT_ID + CLOUDFLARE_API_TOKEN); otherwise returns a structured prompt you can use to compose the message yourself.
PieterPost MCP tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Postals MCP
{
"mcpServers": {
"postals-mcp": {
"command": "npx",
"args": [
"-y",
"postals-mcp"
],
"env": {
"POSTALS_API_KEY": "YOUR_POSTALS_API_KEY_HERE",
"POSTALS_SENDER_NAME": "YOUR_POSTALS_SENDER_NAME_HERE",
"POSTALS_SENDER_ADDRESS": "YOUR_POSTALS_SENDER_ADDRESS_HERE",
"POSTALS_SENDER_CITY": "YOUR_POSTALS_SENDER_CITY_HERE",
"POSTALS_SENDER_STATE": "YOUR_POSTALS_SENDER_STATE_HERE",
"POSTALS_SENDER_ZIP": "YOUR_POSTALS_SENDER_ZIP_HERE",
"POSTALS_DEFAULT_CARD_IMAGE": "YOUR_POSTALS_DEFAULT_CARD_IMAGE_HERE",
"POSTALS_TEST_MODE": "YOUR_POSTALS_TEST_MODE_HERE"
}
}
}
}
PieterPost MCP
{
"mcpServers": {
"pieterpost-mcp": {
"url": "https://pieterpost.com/mcp/"
}
}
}
Frequently asked questions
Postals MCP is categorized under Delivery and uses a local stdio subprocess. PieterPost MCP belongs to Delivery and uses a remote HTTP/SSE transport. Pick Postals MCP for delivery work and PieterPost MCP for delivery.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Postals MCP has no declared pricing — check the project's own site. PieterPost MCP has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add postals-mcp and pieterpost-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Postals MCP has a quality signal of 55/100 (Good) with 1 views, 0 installs and 2 GitHub stars. PieterPost MCP has 36/100 (Fair) with 1 views, 0 installs and 0 GitHub stars.