Firma.dev

Firma is the developer-first e-signature API built for startups and mid-sized SaaS companies. With a clean REST API, embeddable template and signing editors, and fast, no-fuss integration, developers can ship e-signature workflows in hours—not weeks. Firma's pricing model is radically simple and transparent: pay-as-you-go at just €0.029 per envelope. No monthly minimums, no contracts, and no surprise fees. That's a fraction of the cost of legacy providers like DocuSign and HelloSign, making Firma ideal for cost-sensitive teams scaling e-signature flows across products or customers. Every customer gets a dedicated workspace—a secure, partitioned space for templates, documents, and envelope usage. This makes it easy to manage usage by client or environment, with no cross-tenant exposure and no complex access rules. Designed with compliance in mind, Firma aligns with key regulations and frameworks including the ESIGN Act, UETA, HIPAA, GDPR, eIDAS, and more. Security is built in, with alignment to SOC 2 and ISO 27001 standards. Whether you're building self-serve onboarding, automating contract workflows, or integrating embedded signing in your SaaS app, Firma makes it fast, affordable, and developer-friendly. There are no demos to schedule, no sales hoops to jump through—just sign up, get your API key, and start sending envelopes. Key capabilities: Embedded template and signer editors (no iframe hacks) Simple, modern API (send and sign in 5 lines of code) Per-workspace analytics Webhooks for envelope events Audit trails and certificate of completion Use cases: SaaS onboarding flows, B2B contracts, HR and legal document automation, healthcare and financial e-signatures, customer document portals. Start building at firma.dev — no credit card required.