Meet Firma.dev: E-Signatures Built for Developers
Firma.dev is a developer-first e-signature API at €0.049 per envelope (~5¢ USD). Pay-as-you-go, no contracts, no per-seat fees. It is 97-99% cheaper than DocuSign, legally valid in 55+ countries, and hosted entirely in the EU.
Join Our Founding Creator Program
SaaS builders
SaaS builders who want to embed e-signatures into their own product instead of building it in-house.
Agencies
Agencies sending a high volume of contracts to clients, who feel the pain of per-seat pricing as they grow.
Internal teams
Internal teams at a single business that just need an easy, no-fuss way to get their own paperwork signed.
Where we are headed
Firma.dev is early, and partnering now means growing with us.
We are building the e-signature layer for modern software: API-first, priced so that signatures are no longer a line item people dread, and open enough that developers can bend it to whatever they are building.
Coming in as a founding creator means your content is part of that story from the start.
For the fuller picture, product shots, logos, and brand assets, see the media kit (/media).
What we sponsor
Every deal is a separate conversation, so there are no fixed rates here. These are the formats we work with, from light to heavy:
Mention or shoutout
A line in a video, an X post, a newsletter blurb.
How-to or integration guide
A written tutorial built on a free account and a test API key.
Dedicated sponsored post
A full X thread, LinkedIn post, or blog piece about Firma.dev.
Roundup or comparison
A "top e-signature APIs" piece, or a "DocuSign alternative for developers" angle.
Sponsored video segment
An integrated segment inside a broader video.
Full dedicated video
A whole tutorial or review built around Firma.dev.
Founder interview or podcast spot
We supply the guest, you get the content.
Custom
You know your audience better than we do. Pitch us your idea.
How partnerships work
Selective, Paid Partnerships
We are taking a small handful of paid creators right now, so this is selective rather than open to everyone.
Try It Free Before You Promote It
Before you promote anything, you can try the product properly. Accounts are free and come with a test API key, so you can build against the full API and see exactly how it works.
You do not need to pay or commit anything to evaluate it. We would rather you know the product before you put your name on it.
What you earn
You earn two ways, and they stack. One is a flat fee for making the content. The other is a cut of every customer that content brings in, for as long as they keep signing.
Get paid up front
A flat fee for the sponsored content, agreed with you per deal.
Keep earning after
20% of your referred customers' revenue for 18 months from their signup, paid in cash. You receive a referral code and link, anyone who signs up through it is automatically attributed to you, onboards through the normal self-serve flow, and pays standard pricing. Referrals are tracked automatically and kept in a seperate dashboard, so you always know what you have earned. Terms apply.
The fee and the 20% stack. The fee is for the content, the 20% is on top for the customers it brings in.
This is a limited-time founding offer, running during launch for the next few months at most. It will not stay this generous once we open the program up more widely.
What your audience gets
Your code gives the people who use it 50 free live envelopes they can send in production. The envelopes unlock with their first purchase, and any amount counts.
Talking points you can use
Keep it simple and true. The lines that land best:
The cheapest e-signature API.
97-99% cheaper than DocuSign.
Per-envelope pricing, no contracts.
EU-hosted.
Legally valid in 55+ countries.
Integrate it in hours.
