Templates

Start from a ready-made FIFO. mkfifo.com copies the template's envelopes and notes into a new FIFO. The destinations are only examples: replace them with your own.

28 templates.

Monitor alerts to your incident tool

Many monitors send an email when a site goes down, and again when it comes back up. The FIFO forwards each of these emails to the webhook of your incident tool. Put its key in a sealed field.
- IN Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Calendly bookings to a chat

Give the FIFO's address to Calendly as a webhook subscription for invitee.created. Each new booking shows up in your chat, with the person's name, the event, and its start time in UTC. mkfifo.com does not check Calendly's signature, so keep the name of the FIFO secret.
- IN $.event, $.payload.name, $.payload.email, $.payload.scheduled_event.name, $.payload.scheduled_event.start_time OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
A contact form

Each email to the FIFO's address goes to your inbox, and you can reply to the sender. For a web page with a form, add an ingress envelope with the same lines and a free name in To, and write a note about it.
- IN From, Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
An email address that hides yours

Use the FIFO's address when a site asks for your email. Each email arrives in your inbox, and your real address stays private. To stop them all, delete the egress envelope.
- IN From, Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Emails to a chat

Give the FIFO's address to a service that sends email, such as a monitor or a form service. Each email shows up in your chat as one line, with its sender and subject.
- IN From, Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Each email to a webhook

Each email to the FIFO's address goes to your webhook as JSON. The DMARC result tells you whether the sender is real.
- IN From, Subject, X-MkFIFO-DMARC OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Pass on only some events

A service sends many types of events, and your API needs only two of them. Only those go through; the FIFO drops the rest with 204.
- IN $.type, $.data.object.customer_email OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Feedback from your site to a chat

A small form on each page of your site, with the fields page and feedback. Each message goes to your chat's webhook. Slack expects text, Discord expects content. Seal the webhook URL: it is a secret.
- IN Content-Type OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Each Request to your API

The FIFO is a fixed URL in front of your API. Each Request is passed on to your API with its body. To change the API's URL, edit one place: the egress envelope.
- IN each Request OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
GitHub pushes to a chat

Add the FIFO's address as a GitHub webhook. Each push to main goes to your chat's webhook. Seal the chat URL: it is a secret.
- IN X-GitHub-Event OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
New GitHub issues to your inbox

Add the FIFO's address as a GitHub webhook, with the content type application/json and the Issues event. Each new issue arrives in your inbox, with its link.
- IN X-GitHub-Event, $.action, $.repository.full_name, $.issue.title, $.issue.html_url OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Reshape JSON

Your service sends JSON in one shape, and your API expects another. The selector lines read the values, and the egress envelope writes the new JSON.
- IN $.event, $.user.name, $.user.email OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Lemon Squeezy orders to your inbox

Give the FIFO's address to Lemon Squeezy as a webhook for the order_created event. Each new order arrives in your inbox, with its number, its total and the customer's address.

mkfifo.com does not send this email: your email provider does. Put the URL of its API in To of the egress envelope, your key in Authorization (close the lock to seal it), and the JSON for its API in the body. mkfifo.com does not check Lemon Squeezy's signature, so keep the name of the FIFO secret.
- IN X-Event-Name, $.data.attributes.order_number, $.data.attributes.total_formatted, $.data.attributes.user_email, $.data.attributes.first_order_item.product_name OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
New Linear issues to a chat

Give the FIFO's address to Linear as a webhook for Issues data change events. Each new issue shows up in your chat, with its identifier, title and link. mkfifo.com does not check Linear's signature, so keep the name of the FIFO secret.
- IN $.type, $.action, $.data.identifier, $.data.title, $.data.url OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
A fake API for your tests

Your app sends POST with JSON. The FIFO answers 201 with a JSON body, just like a real API, so you can test your app before the API is ready.
- IN X-HTTP-Method-Override, $.name OUT an answer
The name of the new FIFO
Leave it empty for a random name.
Paddle payments to a chat

Give the FIFO's address to Paddle as a notification destination for transaction.completed. Each completed transaction shows up in your chat. The total is in the smallest unit of the currency, such as cents. mkfifo.com does not check Paddle's signature, so keep the name of the FIFO secret.
- IN $.event_type, $.data.id, $.data.details.totals.total, $.data.currency_code OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Quote requests

A form with the fields name, email, company and details, with details last. Each request goes to your inbox. When you reply to the email, your reply goes to the person who asked.
- IN Content-Type OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Receipts to your spreadsheet

Forward your receipts to the FIFO's address. The FIFO finds the total and sends one row to your spreadsheet's API, for example a Google Apps Script web app.
- IN From, Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
RSVPs to an invitation

A form with the fields name, email and guests (0 to 9). Each RSVP goes to your inbox, and the guest sees a page that confirms their answer.
- IN Content-Type OUT an answer, an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Shopify orders to your inbox

Give the FIFO's address to Shopify as a webhook for orders/create, in JSON format. Each order arrives in your inbox with its number, total and items.
- IN X-Shopify-Topic, $.name, $.total_price, $.currency, $.line_items[*].title OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Stripe payments to a chat

Give the FIFO's address to Stripe as a webhook for checkout.session.completed. Each payment shows up in your chat. The amount is in cents. mkfifo.com does not check Stripe's signature, so keep the name of the FIFO secret.
- IN $.type, $.data.object.amount_total, $.data.object.currency, $.data.object.customer_details.email OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
A form with a thank-you page

Put a form on your site with the fields email and message, and the FIFO's address in its action. Each message goes to your inbox, and the browser moves on to the thank-you page of your site. Only the form on your site gets this redirect: the browser tells mkfifo.com which site sent the form, so a link to the FIFO cannot take anyone to a different site.
- IN Content-Type OUT an HTTP request, an answer
The name of the new FIFO
Leave it empty for a random name.
Ticket emails to your inbox

Give the FIFO's address to a theater. Ticket emails go to your inbox, and marketing emails go nowhere.
- IN From, Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Tracking numbers in two places

Forward your shipping emails. The tracking number goes to your inbox and to your tracking app. One ingress envelope with two egress envelopes works like tee.
- IN each Request OUT an HTTP request, an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Typeform answers to a chat

Give the FIFO's address to Typeform as a webhook for your form. Each response shows up in your chat, with the form title, the time, and the first answer as text. Change answers[0] to another position, or add a line for each question. mkfifo.com does not check Typeform's signature, so keep the name of the FIFO secret.
- IN $.event_type, $.form_response.definition.title, $.form_response.submitted_at, $.form_response.answers[0].text OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
Commands from your own domain

Only emails from your domain go through, and only when DMARC passes: anyone can write any From, but only your domain's mail servers pass DMARC for it.
- IN From, X-MkFIFO-DMARC, Subject OUT an HTTP request
The name of the new FIFO
Leave it empty for a random name.
A waitlist for your launch

A form with one field, email, on your landing page. Each address goes to your mailing list's API, and the person sees a thank-you page.
- IN Content-Type OUT an HTTP request, an answer
The name of the new FIFO
Leave it empty for a random name.
See every webhook

Give the FIFO's address to a service while you build an integration. Each Request gets the answer ok, and the open editor shows it live, with the result of each envelope. mkfifo.com keeps no copy.
- IN each Request OUT an answer
The name of the new FIFO
Leave it empty for a random name.

Templates

Monitor alerts to your incident tool

Calendly bookings to a chat

A contact form

An email address that hides yours

Emails to a chat

Each email to a webhook

Pass on only some events

Feedback from your site to a chat

Each Request to your API

GitHub pushes to a chat

New GitHub issues to your inbox

Reshape JSON

Lemon Squeezy orders to your inbox

New Linear issues to a chat

A fake API for your tests

Paddle payments to a chat

Quote requests

Receipts to your spreadsheet

RSVPs to an invitation

Shopify orders to your inbox

Stripe payments to a chat

A form with a thank-you page

Ticket emails to your inbox

Tracking numbers in two places

Typeform answers to a chat

Commands from your own domain

A waitlist for your launch

See every webhook