Atlas / MCP servers / payperfax / fax-mcp

fax-mcpSAFE

mcp/payperfax/fax-mcp

PayPerFax MCP server: send a fax from your AI assistant. Pay per fax, no account.

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
—
Transport
streamable-http
License
MIT
Stars
0
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://glama.ai/mcp/connectors/com.payperfax/fax) [](https://smithery.ai/servers/adam-cr0c/payperfax) [](https://mcpservers.org/servers/payperfax/fax-mcp)

Send a fax from your AI assistant. Pay per fax. No account, no API key, no subscription.

The assistant prepares the fax. You open the link, see the preview with the price, and pay in the browser. Nothing is sent and nothing is charged before you pay. A fax that fails to transmit is not charged.

https://fax.payperfax.com/mcp

Remote server, Streamable HTTP, no authentication.

Add it to your chat app

  1. Open the connector settings ("Connectors", "Integrations" or "MCP servers").
  2. Add a custom MCP server. Name: PayPerFax. URL: https://fax.payperfax.com/mcp.
  3. Turn the connector on in your chat.

Tell the assistant which country you are in, so the price shows in your currency. The preview, the payment page and the emails can be in English, Spanish, German, French, Japanese or Korean.

Add it to Gemini CLI

Install the extension from this repository:

gemini extensions install https://github.com/payperfax/fax-mcp --ref main

The extension connects to the hosted PayPerFax MCP server. No account or API key is required. In Gemini CLI, use /mcp to check the connection and see the three tools.

Add it to Antigravity

The Antigravity plugin package connects to the hosted PayPerFax MCP server. See its installation instructions to install it from a local folder. Marketplace listing is pending.

Tools

Read from source at commit b1fe4f5198f3OBSERVED · 2026-10-11
02

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeNA
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfaceWARN
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (2)

MEDIUMAuth / authz · mcp.remote_no_auth · CWE-287, CWE-862
streamable-http
Why it matters. a network transport with no auth environment variable found
Fix. require a token
LOWInventory / provenance · mcp.no_tools_extracted · CWE-1104
server.json
Why it matters. the tool list is enumerated at runtime by tools/list, not declared in source
Fix. the page says so rather than showing an empty table

Gates applied: no_behavioural_pass.

Audited 2026-10-11 · audit v0.4.1 · source sha b1fe4f5198f3full audit observations/trust-audit/mcp-server/payperfax__fax-mcp.json · Report an issue / request a re-scan
03

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-11b1fe4f5198f3SAFEB89first audit
04

Questions

What is the fax-mcp MCP server?

PayPerFax MCP server: send a fax from your AI assistant. Pay per fax, no account.

Is fax-mcp safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does fax-mcp need?

No credential environment variables were found in its source, so it appears to need none.

How does fax-mcp run?

It speaks streamable-http, so it runs as a service you connect to over the network.

How current is this page?

The grade is for one exact copy of the source (b1fe4f5198f3), read on 2026-10-11. The repository is watched and re-audited when it changes.

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