Telnyx Fax MCP for AI. Send documents globally and track every status update.
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Telnyx Fax connects your agent to global fax services. You can send PDFs or TIFF documents to any fax number worldwide and track delivery status in real time.
The server lets you manage numbers, list transmissions, get detailed fax information, and even cancel queued faxes using simple conversation prompts.
What your AI can do
Cancel fax
Stops a queued fax transmission before it actually sends.
Check telnyx status
Verifies if your connection to the Telnyx API is currently working.
Get fax application
Gets details for a configured fax application within your account.
Send PDF and TIFF files to any global fax number, getting real-time tracking data.
List all sent/received faxes (list_faxes), check delivery status details, or cancel pending transmissions.
Retrieve and list all fax-enabled phone numbers in your account using get_fax_number or list_fax_numbers.
Access and list all uploaded documents stored for later use with list_media.
Ask an AI about this
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Telnyx Fax MCP Server: 10 Tools for Document Ops
Use these tools to send faxes, track delivery status, list phone numbers, or retrieve details on any transmission in your Telnyx account.
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Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Telnyx Fax on VinkiusCancel Fax
Stops a queued fax transmission before it actually sends.
Check Telnyx Status
Verifies if your connection to the Telnyx API is currently working.
Get Fax Application
Gets details for a configured fax application within your account.
Get Fax
Retrieves detailed information about a specific fax transmission.
Get Fax Number
Retrieves specific details about a listed phone number's fax capabilities.
List Fax Applications
Shows you all the configured fax applications on your account.
List Faxes
Returns a list of all fax transmissions, including sent and received ones, with their status.
List Media
Displays all media files that have been uploaded and are available for faxing or...
List Fax Numbers
Lists all phone numbers in your Telnyx account that are set up to handle faxes.
Send Fax
Sends a new fax using a required document URL, the recipient's number, and a...
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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Telnyx Fax. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.
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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This connection provides 10 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
Sending important documents shouldn't mean endless clicks and manual status checks.
Today, sending a critical document means jumping between the CRM dashboard, the file storage system, and the separate fax portal. You manually confirm the recipient number, upload the PDF to one service, send it through another, and then jump back into a third interface just to see if 'Transmission Successful' actually means 'Delivered.'
With this MCP server, you tell your agent what needs doing: 'Fax the Q3 report to our legal counsel.' The agent handles the whole chain—finding the number via `list_fax_numbers`, pulling the file using `list_media`, and executing `send_fax`. You get confirmation in one response.
Telnyx Fax MCP Server: Get full control over fax status.
Manually checking on a batch of faxes is tedious. You have to remember which IDs were sent, what the original document was, and if you even know if they’re queued or finished. It's messy, error-prone work that slows down critical processes.
Now, just ask your agent to 'List all recent transmissions.' The tool runs `list_faxes`, giving you a clear, consolidated report showing status (delivered, failed, etc.) and total pages transmitted. You get the full picture in one query.
What your AI can actually do with this
Telnyx Fax MCP Server - Send & Track Documents
Listen up. This server plugs your AI agent straight into Telnyx's global fax services so you can handle all your document transmissions using plain old conversation prompts. You send PDFs or TIFF files to any fax number worldwide, and the system tracks delivery status live.
Sending Faxes and Handling Media
To get a fax out, you use send_fax. Just give it a required document URL, the recipient's number, and a connection ID. It sends that new fax immediately. Before you send anything, you can pull up any documents stored in the library by running list_media, which displays all media files available for faxing or other use.
Managing Transmissions and History
You need to know what's going on with your faxes. You can list every single fax sent or received—both successful and failed—by calling list_faxes. If you want deep details on a specific transmission, run get_fax to retrieve that information. You can also check the current status of your whole Telnyx connection using check_telnyx_status.
And if a fax is queued up but hasn't gone out yet, don't sweat it; you can use cancel_fax to stop that transmission before it actually sends.
Querying Account Details and Numbers
Before you send anything, you gotta know what numbers you got. To see all the fax-enabled phone numbers linked to your Telnyx account, run list_fax_numbers. If you only need details on one specific number—like checking its exact fax capabilities—you use get_fax_number for that. You can also check out configuration stuff: list_fax_applications shows every fax application set up on your account, and get_fax_application gives you the detailed info for a single configured app.
Putting It All Together
When your agent client runs this server, it knows how to manage everything. You can list all those configured applications using list_fax_applications, or check what's going on with any specific application setup by calling get_fax_application. Everything you need—from sending the document via send_fax to checking if the recipient got it through get_fax—is right here.
It’s built for simple conversation, so you just talk to your agent and let it run these tools for you.
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Here's how it actually works
The bottom line is: You give your agent natural language instructions, and it executes the necessary fax tool calls for you.
Subscribe to the Telnyx Fax server on Vinkius Marketplace.
Retrieve your API Key from the Telnyx Mission Control portal and input it into your client environment.
Ask your AI agent a specific question, like 'Send this invoice to 1-800-555-CALL', letting the agent run send_fax using its tools.
Who is this actually for?
Legal departments need this when they can't rely on email compliance. Operations teams use it to automate high-volume document delivery that requires proof of receipt. Healthcare providers depend on it for sending sensitive, compliant patient records without exposing them over standard channels.
Needs to send certified documents or court filings via secure fax and immediately track the delivery confirmation using list_faxes.
Must automate high-volume billing or notification faxes, checking statuses in batches with list_faxes to ensure nothing falls through the cracks.
Sends compliant patient records (e.g., lab results) using secure fax channels and needs to verify number validity first via get_fax_number.
What Changes When You Connect
Track delivery status with list_faxes. You don't just send a fax; you get confirmation on whether it reached the recipient, which is critical for compliance.
Manage your entire phone inventory. Use list_fax_numbers to see every number capable of receiving or sending faxes before running a job.
Handle documents securely. Instead of manually attaching files, use list_media to pull up pre-uploaded PDFs and TIFFs directly into the fax workflow.
Maintain compliance by controlling transmissions. You can cancel a queued transmission instantly using cancel_fax if the recipient's number changes or the document is wrong.
Verify your setup before sending anything big. Running check_telnyx_status confirms that the entire API connection is live and ready to go.
See it in action
Legal firm needs status reports
A paralegal sent 50 compliance documents yesterday. Instead of logging into a dashboard, they ask their agent: 'What's the status on those faxes?' The agent runs list_faxes, returning a count and listing which ones succeeded versus which are still in progress (e.g., FAX-8291).
Automating patient check-ins
A system needs to send lab results immediately after they are ready. It uses send_fax with the document URL and the specific number found via get_fax_number. The whole process runs without human intervention.
Troubleshooting a failed batch
The operations team's automated fax job fails mysteriously. They run list_faxes to see the error codes and then use get_fax on the problematic ID to pull up precise details about why that specific transmission failed.
Updating phone numbers
The company acquired a new branch. Instead of manually adding their fax number, the admin uses list_fax_numbers and confirms the format is correct before integrating it into the main sending script.
The honest tradeoffs
Checking status too often
The developer repeatedly calls get_fax on the same fax ID every few minutes, wasting API calls and slowing down the agent's response time.
Instead of polling, run list_faxes once to get an overview. If you need details, use get_fax only when prompted by a status change flag.
Ignoring media pre-upload
The developer tries to send a document using the path on their local machine, which fails because the AI agent can't access it.
Always first check list_media to see if the file is uploaded and available in the system. Then use that specific media ID when calling send_fax.
Not verifying connection
The agent fails during a critical job run, and the developer doesn't know if it's an app error or a network outage.
Always start by running check_telnyx_status. This confirms your underlying API link is good before you try sending anything.
When It Fits, When It Doesn't
Use this server if secure, trackable document transmission via fax is non-negotiable for compliance or workflow integrity. If you're building a system that needs to handle high-volume transmissions (like billing statements) and must prove delivery confirmation, this is your tool. Don't use it if email works fine—you don't need the complexity of faxes. Also, if all you need is simple message passing or internal chat communication, an MCP server focused on messaging tools will be better than faxing.
Questions you might have
How do I send a fax using the send_fax tool? +
You must provide three things: the connection ID (from), the recipient's number, and the media URL. The agent handles this by gathering all necessary inputs in one go.
Can I check if a fax transmission was successful using list_faxes? +
Yes, list_faxes provides a comprehensive status report for every job, letting you see exactly which faxes succeeded and which ones failed along with an error code.
What if I need to stop a fax before it sends? +
You use the cancel_fax tool. Just ask your agent to cancel the transmission, providing the specific fax ID number.
Do I have to list all numbers first? Is there a better way than list_fax_numbers? +
While list_fax_numbers shows you what's available, if you already know the target number, it's faster just to pass that number directly into your request for send_fax.
What's the first step when setting up? How do I check my connection using `check_telnyx_status`? +
You run check_telnyx_status to verify your API key and general connectivity. This confirms you can talk to Telnyx's system before you send anything. If it returns a success code, you're good to go; otherwise, double-check your credentials or rate limits.
Where are my source documents? How do I list media files using `list_media`? +
Use list_media to pull a rundown of every uploaded file. This shows you the names and URLs for all documents ready to be faxed out. You don't have to manually track them down; just query this tool.
I need to check my configuration details. What does `get_fax_application` show me? +
Running get_fax_application pulls up all the current fax app specifics. This is where you'll find things like webhook URLs or specific application credentials if you need advanced routing logic.
Before I send a fax, how do I validate a recipient number using `get_fax_number`? +
Calling get_fax_number lets you pull up detailed info for any fax-enabled line. You use this to confirm if a specific phone number is active or formatted correctly before running the send_fax tool.
How do I send a fax via AI? +
Use the send_fax tool with your connection ID, recipient phone number (E.164 format), and a URL to the PDF or TIFF document.
Can I check the status of a sent fax? +
Yes. Use get_fax with the fax ID to see delivery status, page count, duration, and any error details.
How do I see my fax-enabled phone numbers? +
Use list_fax_numbers to retrieve all phone numbers in your Telnyx account that have fax capability enabled.
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