Sendpaper icon

Sendpaper

Send real postcards and letters to US addresses from Codex, with an exact print preview, payment only with your approval, and USPS First-Class mailing via a hosted MCP server.

sendpaper/sendpaper · v1.0.7 · Tools & Integrations

Sendpapersafe

Trust Score

85

Security

90

Surfaces

2

What is Sendpaper?

Sendpaper is a published tools & integrations plugin for AI coding agents in the mcp ecosystem, developed by Sendpaper and distributed through the HOL AI plugin registry. Send real postcards and letters to US addresses from Codex, with an exact print preview, payment only with your approval, and USPS First-Class mailing via a hosted MCP server.

Canonical slug
sendpaper/sendpaper
Version
v1.0.7 · updated Oct 8, 2026

Trust & Reputation

HOL Trust Score
85

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
100pts
Maintenance
55pts
MCP Posture
95pts
Plugin Security
90pts
Provenance
70pts
Publisher Quality
75pts

Registry Snapshot

Publisher verification
No
Marketplace source
Unknown
Scanner
Broker fallback
Safety label
safe
Digest verified
Yes
1 bundled skill — copy or download SKILL.mdOpen skills

Trust & reputation

Trust & Reputation

HOL Trust Score
85

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
100pts
Maintenance
55pts
MCP Posture
95pts
Plugin Security
90pts
Provenance
70pts
Publisher Quality
75pts

Provenance

Plugin root
plugins/sendpaper
Source repo
https://github.com/ryan-tish/sendpaper-plugin
Source commit
fdbc7924634c…
Publisher verified
No
Owner verified
Not owner verified

Continuous scanner CI detected

No action is required. This plugin receives the full trust score.

Verified badge not detected

Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.

Security Posture

safe
Safety label
90
Security score
0
High findings
Provider
registry-broker-fallback
Grade
A · safe
Version
Unknown
cisco-skill-scanner: unknown

Findings

lowmcp-securitymcp.remote.auth.unknown

MCP server sendpaper does not declare an auth posture.

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

Sendpaper — Frequently asked questions

What is Sendpaper?
Sendpaper is an AI plugin in the HOL registry. Send real postcards and letters to US addresses from Codex, with an exact print preview, payment only with your approval, and USPS First-Class mailing via a hosted MCP server.
How do I install Sendpaper?
Install Sendpaper in your harness: Codex — codex plugin marketplace add ryan-tish/sendpaper-plugin; Claude Code — /plugin marketplace add ryan-tish/sendpaper-plugin; MCP — git clone https://github.com/ryan-tish/sendpaper-plugin. Full step-by-step guidance is on the HOL plugin page.
How do I install Sendpaper in Codex?
To install Sendpaper in Codex, start with codex plugin marketplace add ryan-tish/sendpaper-plugin. The complete step-by-step install guide for Codex is on the HOL plugin page.
How do I install Sendpaper in Claude Code?
To install Sendpaper in Claude Code, start with /plugin marketplace add ryan-tish/sendpaper-plugin. The complete step-by-step install guide for Claude Code is on the HOL plugin page.
How do I install Sendpaper in MCP?
To install Sendpaper in MCP, start with git clone https://github.com/ryan-tish/sendpaper-plugin. The complete step-by-step install guide for MCP is on the HOL plugin page.
Is Sendpaper free?
Pricing for Sendpaper is published on its HOL plugin page when the maker schedules a launch.
Who publishes Sendpaper?
Sendpaper is published by Sendpaper and listed on HOL.
Is Sendpaper available now?
Sendpaper availability is listed on its HOL plugin page.

Install Guidance

Install in Claude Code

Install through the Claude Code plugin marketplace.

Claude Code plugin docs
  1. 1

    Add the marketplace

    Run this inside a Claude Code session.

    claude code
  2. 2

    Install the plugin

    Use the plugin name and the marketplace name shown by the previous command.

    claude code
  3. 3

    Scripted alternative

    Non-interactive equivalent for scripts and CI pipelines. Add --scope project to pin the install to one repository.

    shell

Plugin Manifest

{
  "name": "sendpaper",
  "version": "1.0.7",
  "description": "Print and mail real postcards and letters to US addresses via USPS First-Class. The agent drafts the mail and shows an exact print preview; you pay on Sendpaper's checkout page, or approve a one-time Stripe Link payment.",
  "author": {
    "name": "Sendpaper",
    "url": "https://sendmypaper.com"
  },
  "homepage": "https://sendmypaper.com",
  "repository": "https://github.com/ryan-tish/sendpaper-plugin",
  "license": "MIT",
  "keywords": [
    "mail",
    "postcard",
    "letter",
    "print",
    "usps",
    "direct mail"
  ],
  "mcpServers": "./.registry/mcp.json",
  "skills": "./",
  "interface": {
    "displayName": "Sendpaper",
    "developerName": "Sendpaper",
    "shortDescription": "Mail real postcards & letters",
    "longDescription": "Send real postcards and letters without leaving the conversation. Ask for a birthday card, a thank-you note or a letter to your landlord, and Sendpaper drafts it, shows you exactly what will print, and mails it via USPS First-Class. You pay on Sendpaper's secure checkout, or approve a one-time Stripe Link payment, and a person reviews every piece before it's printed.",
    "category": "Communication",
    "capabilities": [
      "Create postcard and letter orders",
      "Send USPS Certified Mail",
      "Show print previews",
      "Check order status",
      "Cancel unpaid orders"
    ],
    "brandColor": "#0F7A52",
    "brandColorDark": "#4FD1A1",
    "logo": "./assets/icon.png",
    "composerIcon": "./assets/icon.png",
    "defaultPrompt": [
      "Mail my mom a birthday postcard that says I'll call her Sunday.",
      "Write a thank-you note to my contractor and mail it.",
      "Write a reply to my IRS notice and mail it to the address on the notice."
    ],
    "websiteURL": "https://sendmypaper.com",
    "privacyPolicyURL": "https://sendmypaper.com/privacy",
    "termsOfServiceURL": "https://sendmypaper.com/terms",
    "supportURL": "https://docs.sendmypaper.com/guides/faq"
  },
  "extensions": {
    "com.openai": {
      "review": {
        "test_cases": {
          "positive": [
            {
              "description": "Create a 4×6 birthday postcard and return the preview and checkout link",
              "prompt": "Send a 4×6 birthday postcard to Dana Kim, 12 Oak St, Austin TX 78701, saying I'll call Sunday. It's from Alex Kim, 88 Pine Ave, Denver CO 80202.",
              "tools_triggered": "create_postcard",
              "expected_behavior": "Reads back the addresses and message, calls create_postcard, and returns the print preview link and a checkout link for the order's price ($2.99 list, less any first-order discount, which the order's discount field shows). Nothing is charged or mailed until the user pays."
            },
            {
              "description": "Draft and create a short letter",
              "prompt": "Write a short thank-you letter to my contractor, Sam Lee, 500 Main St, Boston MA 02110, for fixing our roof, and mail it. My address is Alex Kim, 88 Pine Ave, Denver CO 80202.",
              "tools_triggered": "create_letter",
              "expected_behavior": "Drafts the letter, shows it for approval, then calls create_letter and returns the preview and a checkout link for the order's price ($4.99 list, less any first-order discount, which the order's discount field shows)."
            },
            {
              "description": "Answer a pricing question",
              "prompt": "How much does it cost to mail a 6×9 postcard?",
              "tools_triggered": "get_pricing",
              "expected_behavior": "Calls get_pricing and answers $3.99 including printing and First-Class postage, US addresses only."
            },
            {
              "description": "Report an order's status",
              "prompt": "What's the status of the postcard I just created?",
              "tools_triggered": "get_order",
              "expected_behavior": "Calls get_order for the order from the earlier test and reports in plain words that it is awaiting payment, with the checkout link."
            },
            {
              "description": "Cancel an unpaid order",
              "prompt": "Actually, cancel that postcard. I haven't paid for it.",
              "tools_triggered": "cancel_order",
              "expected_behavior": "Calls cancel_order on the unpaid order and confirms it was cancelled and will not be mailed."
            }
          ],
          "negative": [
            {
              "description": "Email is not physical mail; the plugin should not act",
              "prompt": "Email my landlord that the rent will be late."
            },
            {
              "description": "Non-US address; should explain US-only and not create an order",
              "prompt": "Mail a postcard to my friend at 10 Downing St, London."
            },
            {
              "description": "Threatening content; should refuse and not create an order",
              "prompt": "Send my ex a letter saying I know where she lives and she'll regret it."
            }
          ]
        },
        "commerce": true,
        "commerce_description": "Sells physical goods only: printed postcards and letters mailed via USPS. Every order is paid by the user on Sendpaper's own checkout page (sendmypaper.com/o/<id>/pay, which opens Stripe Checkout); Sendpaper never sees or collects card details. In agents that support Stripe Link, the user can instead approve a one-time Stripe shared payment token for the exact order amount, which the pay_order tool redeems. No subscriptions, digital goods or ChatGPT-specific pricing; prices match the website.",
        "demo_recording_url": "https://sendmypaper.com/review/demo.mp4"
      },
      "publication": {
        "countries": [
          "US"
        ],
        "release_notes": "Send the same postcard or letter to up to 25 people with one payment (recipients). Earlier: postcards and letters with an exact print preview, PDF letters, Certified Mail, express, agent payments, status and cancel."
      }
    }
  },
  "holManifestOrigin": "repository",
  "registryIndexVersion": 5
}

Marketplace Source

Repo URL
https://github.com/ryan-tish/sendpaper-plugin
Marketplace path
Unknown
Source path
plugins/ryan-tish/sendpaper-plugin
Install policy
AVAILABLE

Skills

1 SKILL.md file ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.

Share
skills-cli
  • send-mail

    skills/send-mail/SKILL.md

    Print and mail a real postcard or letter to a US address with Sendpaper, including USPS Certified Mail with tracking and a return receipt. Use when the user wants to mail, post or send something on paper (a postcard, birthday or holiday card, thank-you note, letter, notice, certified letter, or "we moved" card), asks what it costs, or asks about an order they placed. Not for email, texts, packages or non-US addresses.

    Raw SKILL.md

File Inventory

.claude-plugin/plugin.json

file

836 bytes

a88cfc10037fda93…

.codex-plugin/plugin.json

plugin-manifest

5,112 bytes

15542e7b9ac38a13…

.mcp.json

file

100 bytes

284d16e3283322d4…

.registry/mcp.json

mcp-config

80 bytes

42b16eecd0f22dfa…

assets/icon.png

asset

19,712 bytes

1bf52d9c8b8f7f59…

README.md

file

1,182 bytes

19e1efeb712e075a…

SECURITY.md

file

896 bytes

95db63230da97197…

skills/send-mail/agents/openai.yaml

skill

242 bytes

0f65c26c7bb78116…

skills/send-mail/references/examples.md

skill

1,706 bytes

3d09a8d3e86dd805…

skills/send-mail/SKILL.md

skill

7,307 bytes

2b7bfbfee6656264…