PostAgent
Rank #135,832smithery/interpretai/postagent
**PostAgent lets an AI agent send real, physical mail.** Upload a document, lock a price quote, pay per send, and PostAgent prints it and ships it via USPS. Built for autonomous agents: **pay per call in USDC on Base via the [x402](https://www.x402.org/) protocol** or credit cards, no signup, no human-issued API key, no billing account. ### What it does - **Letters** — PDF, HTML, Markdown, text, DOCX, or image; black & white or color. Optional **certified, certified-with-return-receipt, or registered** mail for proof of delivery. - **Postcards** — 4×6, 6×9, 6×11, full color from front/back artwork (4×6 can ship internationally). - **Address verification** — standalone US/international deliverability check (~2¢ per call). - **Mail merge** — personalize one template across many recipients with `{{fields}}`. - **Bulk campaigns** — one creative to up to 500 recipients (KYC-gated). Quotes are free and verify both sender and recipient addresses; the server always quotes first and only mails after explicit confirmation. **Sends spend real money and are irreversible once submitted.** US recipients · pay-as-you-go · no subscription.
What you can do with PostAgent
PostAgent is a Model Context Protocol (MCP) server. It ranks #135,832 of 166,322 active servers on MCP Toplist. PostAgent is listed on Smithery; no version information is available from the registries that list it or from its repository. It was first listed on Jun 17, 2026.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. Its registry listings below are the authority on what it does.
What PostAgent can and cannot do
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. Check its registry listings below.
What you need before using PostAgent
The hosted endpoint is declared as gated by authentication — connect via its URL and authenticate with the provider (OAuth flow or an API key/header, per its docs).
Declared by Smithery, last synced Nov 2, 2026. Not independently verified by MCP Toplist.
Hosted endpoint declared as requiring authentication.
Connect PostAgent and confirm it works
claude mcp add --transport http postagent https://server.smithery.ai/interpretai/postagent/mcpThis endpoint requires authentication — see the server’s docs for credentials.
[mcp_servers.postagent]
url = "https://server.smithery.ai/interpretai/postagent/mcp"Add to ~/.codex/config.toml. This endpoint requires authentication — see the server’s docs for credentials.
https://server.smithery.ai/interpretai/postagent/mcpSettings → Connectors → “Add custom connector”, then paste this URL. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"postagent": {
"url": "https://server.smithery.ai/interpretai/postagent/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). This endpoint requires authentication — see the server’s docs for credentials.
{
"servers": {
"postagent": {
"type": "http",
"url": "https://server.smithery.ai/interpretai/postagent/mcp"
}
}
}Save as .vscode/mcp.json in your workspace. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"postagent": {
"serverUrl": "https://server.smithery.ai/interpretai/postagent/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"postagent": {
"url": "https://server.smithery.ai/interpretai/postagent/mcp"
}
}
}This endpoint requires authentication — see the server’s docs for credentials.
After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.
What changed, and when this was checked
- First listed
- Jun 17, 2026
- Version history
- Unavailable — no registry exposes versions and no release tags were found
- Requirements evidence
- Declared by Smithery, last synced Nov 2, 2026. Not independently verified by MCP Toplist.
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Nov 2, 2026
- Smithery ↗listed since Oct 28, 2026 · still listed
Do you maintain PostAgent? to correct or enrich this profile.
Version information unavailable
The registry that lists this server does not expose version metadata, and no release tags were found on the linked repository. MCP Toplist cannot say how, or whether, this server is versioned.
Ranks ahead of 30,490 of 166,322 servers on MCP Toplist.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/smithery%2Finterpretai%2Fpostagent)<a href="https://mcptoplist.com/server/smithery%2Finterpretai%2Fpostagent"><img src="https://mcptoplist.com/badge/smithery%2Finterpretai%2Fpostagent.svg" alt="MCP Toplist: #135,832 of 166,322" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Is PostAgent listed on the Official MCP Registry?
- PostAgent is not on the Official MCP Registry. It is listed on Smithery.
- How many versions does PostAgent have?
- Version information is unavailable for PostAgent: no registry that lists it exposes version metadata, and no release tags were found on its repository.
Do you run this server?
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