# Firma review (2026): is it worth paying for? > Pay-per-envelope e-signature API for SaaS products Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA. Firma is an e-signature API aimed at software companies that want signing inside their own product. It offers a REST API, a TypeScript SDK, webhooks and embeddable template and signing editors that can be white-labeled. Billing is per envelope with no seat fees, and data is stored in the EU. - **Category:** E-Signatures & Proposals - **Made by:** Firma.dev - **Website:** https://firma.dev - **Runs on:** Web - **Who should skip it:** Not for you if you have no developer, as there is no signing app to open. - **Facts last checked:** Nov 13, 2026 ## Pricing As of Nov 13, 2026, Firma is a paid product with a free trial, starting at €0.049 per envelope, no minimum. - **Pricing model:** Free trial - **Free plan:** None. - **Free trial:** Free testing-mode API key with unlimited test envelopes, no card required. | Plan | Price | What you get | | --- | --- | --- | | Pay as you go | €0.049 per envelope, no minimum or contract | Flat rate at any volume, with unlimited teams, full API access and no per-seat fees. Priced in euros and billed in your currency. | Read from https://firma.dev/pricing on Nov 13, 2026. Prices change, so confirm with Firma before buying. ## Key features - **REST API and TypeScript SDK:** Send documents from templates or uploaded PDFs, add recipients with roles, set signing order and deadlines, and download signed files and audit trails. - **Embedded editors:** Template and signing editors drop into your app as an iframe, with custom styling and white-label branding applied. - **Unlimited teams:** Each of your customers can have an isolated workspace with its own branding and webhook settings at no extra charge. - **Webhooks and event stream:** Events such as document sent, viewed, signed and complete are pushed as webhooks, and a server-sent event stream covers team activity. - **Audit trail and compliance:** Every signing request records views, field changes and signatures. The vendor says it aligns with ESIGN, UETA, eIDAS and GDPR. - **Zapier and n8n:** For no-code use the vendor says Firma connects to Zapier or n8n. ## Good for - SaaS teams that want white-labeled signing for their own customers - Low-volume senders who do not want a monthly minimum - Teams that need EU-only data storage ## Worth knowing - Prices are listed in euros and billed in your local currency at the current exchange rate, so the dollar amount varies. - One envelope is one document sent for signature, however many signers or pages it has. - Priority support with a one-business-day response is a separate €100 per month. - It is an API product; there is no separate end-user signing app listed. ## ToolGPA grades **GPA: 2.4 out of 4**, graded Nov 13, 2026. Firma.dev is an e-signature API charging EUR 0.049 per envelope with no minimum, no per-seat fees and unlimited teams. The test key is free with no card. It is only an API, with no end-user signing app, and priority support is an extra EUR 100 a month. - **Value for money: A.** EUR 0.049 an envelope with no minimum, so 100 envelopes cost under EUR 5, under 60% of the category's cheapest quarter. - **Free plan and trial: C.** A testing-mode API key with unlimited test envelopes and no card, but real sending is paid. - **Features: C.** REST API, TypeScript SDK, embedded editors, webhooks, audit trail and unlimited teams. It does the API job and has no end-user app of its own. - **Ease of use: D.** No store rating on record, and you write code against an API before anything is signed. - **Platforms and integrations: B.** Web and an API, with Zapier and n8n connectors listed. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Firma.dev's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among e-signature and proposal tools - Firma's GPA of 2.4 is higher than 58 of the 78 other e-signature and proposal tools we grade, and level with 11. - It stands best on value for money (A, above 76 of 78) and worst on ease of use (D, above 1). The category's chart of price against score: https://toolgpa.com/charts/e-signatures ## Keep it, or make your own? **Keep it.** To replace Firma you would be making connections to other products, each kept working as those products change. That is not a weekend's work, with an AI app builder or without one. It is one of the better ones too: its GPA of 2.4 is higher than 58 of the 78 other e-signature and proposal tools we grade. - You could make: Templates: an app builder makes this well. - You could not: Connections to other products, each kept working as those products change. - You could not: An AI agent, with the models and the safeguards behind it. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Zapier, n8n **Tags:** Public API, Templates, Workflow automation, AI agents ## Alternatives - [SignatureAPI](https://toolgpa.com/tools/signatureapi): E-signature API for developers, with a no-code connector. [Compare](https://toolgpa.com/compare/firma-dev-vs-signatureapi) - [Anvil](https://toolgpa.com/tools/anvil): Document automation and e-signature APIs for developers. [Compare](https://toolgpa.com/compare/anvil-vs-firma-dev) - [eSignatures.io](https://toolgpa.com/tools/esignatures-io): Pay-per-contract e-signatures with an API and no monthly fee. [Compare](https://toolgpa.com/compare/esignatures-io-vs-firma-dev) - [Documenso](https://toolgpa.com/tools/documenso): Open-source document signing, hosted or on your own servers. [Compare](https://toolgpa.com/compare/documenso-vs-firma-dev) - [DocuSeal](https://toolgpa.com/tools/docuseal): Open-source document signing, in the cloud or on your servers. [Compare](https://toolgpa.com/compare/docuseal-vs-firma-dev) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 13, 2026: - https://firma.dev/pricing - https://firma.dev Page: https://toolgpa.com/tools/firma-dev Listed by ToolGPA (toolgpa.com).