io.github.coopergwrenn/postals-mcp
NPM · POSTALS-MCP · SCANNED AUG 3
Send physical handwritten postcards from any AI agent. Real pen & ink, USPS, $4.99/card.
Available components
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. How we score →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 105 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability40
- 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Fail
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 622 tokens (~311/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · postals-mcp
claude mcp add coopergwrenn-postals-mcp -- npx -y postals-mcp
codex mcp add coopergwrenn-postals-mcp -- npx -y postals-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"coopergwrenn-postals-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"postals-mcp"
],
"enabled": true
}
}
} openclaw mcp add coopergwrenn-postals-mcp --command npx --arg -y --arg postals-mcp
mcp_servers:
coopergwrenn-postals-mcp:
command: "npx"
args: ["-y", "postals-mcp"] {
"mcpServers": {
"coopergwrenn-postals-mcp": {
"command": "npx",
"args": [
"-y",
"postals-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Aug 26 +53
- Provenance: unverified → fail ▼ security
- Known CVEs: unverified → partial ▲ security
- Install scripts: unverified → pass ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- MCP protocol: unverified → pass ▲ functional
- Maintenance: unverified → pass ▲ functional
- Schema quality: unverified → 0 ▲ functional
- License: unverified → pass ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Schema quality: unverified → excellent ▲ functional
- Dependency health: unverified → partial ▲ functional
- Licence: MIT functional
- 1 Aug 26 −17
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 −18
- Malware scan: pass → unverified ▼ security
- 30 Jul 26 +17
- Tool coverage: unverified → 100 ▲ functional
- Schema quality: unverified → 0 ▲ functional
- 28 Jul 26 −17
- Schema quality: 0 → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 27 Jul 26 35
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Analysed npm/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 95 packages
95 packages in the resolved dependency tree · 95 deprecated · 29 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
generate_message ~175
Generate 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.
| Name | Type | Req | Description |
|---|---|---|---|
| max_chars | number | — | Max character count for the message |
| recipient_context | string | yes | Who the recipient is and why you're writing. Example: 'John Smith, homeowner at 123 Oak St. Sending a before/after postcard showing what a pool would look like in his backyard.' |
| sender_context | string | — | Who is sending the card. Example: 'Blue Wave Pools — local pool builder in Austin, TX' |
| tone | string | — | Message tone |
No output schema declared.
No examples provided.
send_postcard ~367
Send 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.
| Name | Type | Req | Description |
|---|---|---|---|
| front_image_url | string | — | Public HTTPS URL of the image for the card front (PNG or JPEG, landscape 7x5 preferred). If omitted, uses POSTALS_DEFAULT_CARD_IMAGE. |
| handwriting_style | string | — | Handwriting font name. Default: "Joyful Jennifer". Other options depend on your Handwrytten account. |
| idempotency_key | string | — | Unique key to prevent duplicate sends on retries. If a prior send with this key succeeded, returns the original result without sending a new card. Recommended for autonomous agents. |
| message | string | yes | The handwritten message for the back of the card. Max 400 characters. Keep it personal and concise. |
| return_address | object | — | Sender's return address. If omitted, uses POSTALS_SENDER_* env defaults. |
| to_address | string | yes | Street address line 1 |
| to_address_2 | string | — | Street address line 2 (apt, suite, etc.) |
| to_city | string | yes | City |
| to_name | string | yes | Recipient's full name (e.g. 'Jane Smith') |
| to_state | string | yes | Two-letter US state code (e.g. CA, NY, TX) |
| to_zip | string | yes | 5-digit ZIP code (e.g. 78701 or 78701-1234) |
No output schema declared.
No examples provided.