Firma.dev

Firma.dev: Electronic signature API at just $0.029 for developers Firma.dev：面向开发者的电子签名 API，单次仅需 $0.029

At €0.029 per envelope (about 3¢), Firma.dev runs about 99% cheaper than DocuSign’s API pricing. Pay-as-you-go, no minimums, no contracts. It’s built developer-first for startups and SaaS companies: a clean REST API, embeddable template and signing editors, and integration that takes hours instead of weeks. Firma.dev 的单次信封（envelope）费用为 €0.029（约 3 美分），比 DocuSign 的 API 定价便宜约 99%。采用按需付费模式，无最低消费，无合同约束。该产品专为初创公司和 SaaS 企业打造，以开发者为先：提供简洁的 REST API、可嵌入的模板和签名编辑器，集成过程仅需数小时而非数周。

Every customer gets a dedicated workspace, so templates and documents stay separated. Designed to support ESIGN, UETA, HIPAA, GDPR, and eIDAS. Sign up, grab an API key, and start building. 每位客户都拥有专属工作区，确保模板和文档相互隔离。系统设计支持 ESIGN、UETA、HIPAA、GDPR 和 eIDAS 等合规标准。注册并获取 API 密钥，即可开始构建。

Overview 概览

At €0.029 per envelope (about 3¢), Firma.dev runs about 99% cheaper than DocuSign, where one envelope can cost $4-5. Pay-as-you-go, no minimums, no contracts. Built developer-first for startups and SaaS teams who’d rather integrate signing in an afternoon than sit through a sales cycle: clean REST API, embeddable template and signing editors, integration in hours. Firma.dev 的单次信封费用为 €0.029（约 3 美分），比 DocuSign（单次费用可达 $4-5）便宜约 99%。采用按需付费模式，无最低消费，无合同约束。专为初创公司和 SaaS 团队打造，让开发者无需经历漫长的销售周期，只需一个下午即可完成集成：提供简洁的 REST API、可嵌入的模板和签名编辑器，数小时内即可完成对接。

Test everything free with a sandbox key, real docs and unlimited usage, before you pay a cent. Get an API key and start building. 在支付任何费用之前，您可以使用沙盒密钥进行全面免费测试，支持真实文档且无使用限制。立即获取 API 密钥并开始构建吧。