How to send a fax with Meta Muse

Doctors' offices, insurers, county clerks and lawyers still ask people to fax things. You probably do not own a fax machine. Connect No Errands Fax to Muse once and you can say "fax this form to my doctor" and it goes. A one-page fax costs $1.49, then $0.49 per extra page. US and Canadian fax numbers.

What you need

• A Muse account.
• The destination fax number.
• Your document as a PDF at a public web address. A link Muse can open works; a file only on your phone does not. If your document is somewhere Muse can already reach, such as a cloud drive link that opens without a login, that works.
• A card to buy credits with.

Step 1: Get a key

Go to https://noerrands.com/get-key, enter your email, and leave the choice on read and write so Muse is allowed to send. One key covers fax, mail and bookings.

The key is shown once. Leave that tab open until step 3.

Step 2: Paste this prompt into Muse

Copy the whole block and paste it into Muse as one message. It sets up all three connectors at once.

Build a custom connector for No Errands. One API key covers three services:
printed mail (letters and postcards), fax, and appointment booking.

1. Read these three connector briefs and follow them exactly:
   https://noerrands.com/connectors/muse.md
   https://noerrands.com/connectors/fax/muse.md
   https://noerrands.com/connectors/booking/muse.md

2. Store my API key in the Secure Credentials Store as NOERRANDS_API_KEY.
   The same key works for all three. Never print, log, echo, or repeat it,
   not even partially.
   Send it as the header: Authorization: Bearer <NOERRANDS_API_KEY>

3. Prefer the MCP endpoints (streamable HTTP):
   https://api.noerrands.com/c/mail/mcp
   https://api.noerrands.com/c/fax/mcp
   https://api.noerrands.com/c/booking/mcp
   If you use the REST APIs instead, each brief links its OpenAPI document.

4. Before you mail anything, fax anything, or book anything, show me exactly
   what will happen, what it costs, and who it goes to, and wait for my
   explicit approval. Never act without asking me first.

5. Save this as a reusable skill called "Mail, fax and bookings".

Muse reads our connector briefs, writes its own client, tests it, and saves it as a reusable skill. Approve network access to our domain when Muse asks. You will see a caution notice because Meta does not review custom connectors.

Step 3: Paste your key into the Secure Credentials Store

Muse will ask for your API key and open its Secure Credentials Store.

Paste the key into that box. Do not paste it into the chat.

Muse's agent never sees the real key. It works with a stand-in token and the real value is swapped in at the network edge, so a web page cannot talk Muse into leaking it.

Step 4: Add credits

Your balance starts at $0.00. Say:

Add credits to my account.

Muse hands you a checkout link and you pay in your own browser. Your options are $2.49 for a single letter, or $10.00 for $12.50 of credit (one free letter), $25.00 for $32.50 of credit (three free letters) and $50.00 for $67.50 of credit (seven free letters) -- every pack credits more than it costs. The same balance covers faxes and mail.

Step 5: Ask Muse to send the fax

For example:

Fax the PDF at https://example.com/intake-form.pdf to +1 415 555 0123, with a cover note saying it is the intake form for Ada Lovelace.

Muse will:

1. read the fax number back to you, digit by digit, because fax numbers are easy to mistype and a wrong one sends your document to a stranger;
2. confirm which document it is sending;
3. get an exact price;
4. wait for you to say yes.

Nothing is transmitted until you approve. After you approve, Muse reports a fax ID. Later you can ask:

Did that fax to the doctor go through?

What it costs

Item	Price
Fax, first page	$1.49
Each additional page	$0.49
Getting a price quote	Free
Checking whether it went through	Free

See full pricing.

Questions people ask

Is my key safe?

Yes, as long as you paste it into Muse's Secure Credentials Store and not into a chat message. Muse's agent only ever handles a stand-in token; the real key is inserted at the network edge, outside the agent's reach. We store only a hash of your key, so even we cannot read it back.

If you think a key leaked, email support@noerrands.com and we will revoke it.

Can Muse send a fax without asking me?

No. The connector brief tells Muse to confirm the destination number and the document, show you the price, and get your explicit approval before every single fax. Sending is a separate, consequential call, and Muse's own permission layer treats it that way.

For a hard guarantee, ask for a read-only key on the key page. The server refuses any send made with one.

What if I run out of credits?

The fax stops before anything is transmitted. Muse tells you how much you are short and hands you a top-up link. It will not retry on its own. Add credits, then ask again.

What if the fax does not go through?

Failed faxes are refunded to your credit balance automatically, once. Muse will tell you it failed rather than quietly resending. Fax lines are genuinely unreliable, so if a number keeps failing, check the number and ask the recipient whether their machine is on.

Can I fax a photo or a Word document?

Send a PDF. It is the format that reliably survives a fax. If you ask Muse to fax plain text it has written, that may work, but if our fax provider needs a real PDF, Muse will tell you and ask you for one instead of guessing.

Can I fax outside the US?

US and Canadian fax numbers only.

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Next: send a letter with Muse or book an appointment with Muse.