Blueink eSignature API vs Dropbox Sign API
Blueink eSignature API
developer.blueink.com
Dropbox Sign API
sign.dropbox.comSide by side
| Figure | Blueink eSignature API | Dropbox Sign API |
|---|---|---|
| Price from | $90/mo | $75/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 7 | 5 |
| Spec score · Electronic Signature APIs | 8.2 (#10) | 8.4 (#7) |
| Integrations | Blueink lists integrations including Airtable, Dropbox, Gmail, Google Drive, Google Sheets, HubSpot, Salesforce, Slack, and Zapier. | Dropbox Sign integrates with Dropbox, Microsoft Word, Salesforce, Google Drive, HubSpot, Slack, and other CRM, storage, and productivity tools. |
| Purpose | Blueink's REST API lets developers add electronic signing, sending, and tracking to their applications and automated workflows. | The API enables developers to integrate Dropbox Sign eSignatures into their own websites and applications. |
| SDKs | The developer site lists official client libraries for Python, JavaScript, and PHP, plus a Postman collection. | Official SDKs are provided for Python, Ruby, PHP, Java, NodeJS, and C#. |
| Security | Blueink states that its transactions are end-to-end encrypted, data is encrypted at rest, and access controls follow least-privilege practices. | The service lists SOC 2 Type II, ISO 27001, eIDAS, and GDPR compliance, 2FA, and AES 256-bit encryption at rest. |
Plans
Blueink eSignature API
- Bronze (annual)$90 a month
- Bronze (monthly)$108 a month
- Silver (annual)$240 a month
- Silver (monthly)$288 a month
- Gold (annual)$480 a month
- Gold (monthly)$579 a month
- EnterprisePriced on request
Dropbox Sign API
- Free packageFree
- Test modeFree
- Essentials$75 a month
- Standard$250 a month
- PremiumPriced on request
In their own words
Blueink eSignature API
Blueink eSignature API has no write-up on Specifiction yet; its figures are above.
Dropbox Sign API
Dropbox Sign API lets developers add electronic signature workflows to their own websites and applications. Embedded request, signing, and template-management steps can appear in iFrames, with custom branding for senders and signers. Reusable templates can hold preloaded data for recurring signature processes. The service connects with Dropbox, Microsoft Word, Salesforce, Google Drive, HubSpot, Slack, and other CRM, storage, and productivity tools. Its listed security provisions include OAuth 2.0, 2FA, AES 256-bit encryption at rest, and non-editable audit trails that time-stamp document actions. Dropbox Sign lists SOC 2 Type II, ISO 27001, eIDAS, and GDPR compliance. Its signatures are legally binding in the United States, European Union, United Kingdom, and many other countries. SDKs are available for Python, Ruby, PHP, Java, NodeJS, and C#, and development help is available through documentation, the Help Center, and email support engineers. Senders and signers can use the service end-to-end in 22 languages. Free plans are listed; paid pricing starts at $75/mo. More than 500 requests per month requires contacting sales.