eSignatures.com API review
A focused API for teams that want embedded signing without monthly or seat fees.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
eSignatures.com API is a REST-based electronic signature service for businesses and development teams automating contract workflows. It supports creating, sending, managing, and tracking contracts through an API, with embedded signing in an iframe for branded application experiences. The product fits operational teams in areas such as healthcare, insurance, fintech, and SaaS that need contract signing without subscription or per-seat pricing. The published plan includes unlimited users, making the usage model straightforward for teams with variable signing activity.
Pricing is centered on one Pay as you go plan at $0.49 per contract. That rate covers API integration, embedded signing, templates, bulk sending, and unlimited users. Reusable templates, placeholder fields, custom branding, signer fields, and sequential or simultaneous signing order provide control over recurring workflows. Email, SMS, and photo ID authentication are available, although optional SMS delivery and live photo ID verification are charged separately. The service also supports up to 15 signers per contract and can retrieve signed PDFs after completion.
For automation, webhook notifications cover contract and signer events, which can help connected systems track progress without relying only on manual checks. Integrations include Zapier, Make, Google Drive, and Claude, while the listed platform coverage is web and API. That makes the product a practical fit for teams building or connecting a focused signing workflow, but less suitable for buyers seeking a broad native application ecosystem. Choose it for low-volume or variable contract activity, embedded signing, and usage-based billing; consider an alternative if wider platform support or deeper integrations are central requirements.
eSignatures.com API pros and cons
- Where it wins
- $0.49 per contract with no monthly or seat-based pricing
- Embedded signing, templates, webhooks, and signed PDF retrieval
- Email, SMS, and photo ID authentication options
- Where it doesn't
- Optional SMS delivery and live photo ID verification cost extra
- Platform coverage is limited to web and API
- Integrations are limited to Zapier, Make, Google Drive, and Claude
eSignatures.com API fact sheet, pricing and score →
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