Open API PricingOpen API Pricing

Dropbox Sign API vs BoldSign API pricing

Both are in e-signature apis. Dropbox Sign API is billed per-request monthly tiers; BoldSign API is billed per-envelope / per-user monthly. Numbers below are copied from each vendor's pricing page.

Dropbox Sign API vs BoldSign API pricing side by side
Dropbox Sign APIFree tier or trial
Free tier
Free Test Mode sandbox + free plan (3 requests/30 days)
Billed
Per-request monthly tiers
Best for
Developer-friendly embedded signing at mid-market scale
Verified
Jun 27, 2026
BoldSign APIFree tier or trial
Free tier
Free sandbox + Essential plan: 25 envelopes/mo
Billed
Per-envelope / per-user monthly
Best for
Affordable, fully self-serve e-signature API for builders
Verified
Jun 27, 2026

Dropbox Sign API plans

PlanPriceWhat it covers
Test ModeFree (or $180/yr)Sandbox for building and testing against every endpoint with watermarked, non-binding documents before going to production.
Essentials$75/mo (or $900/yr)Starts at ~50 signature requests/month. Templates, API dashboard, audit trail, 6-language SDKs, embedded signing.
Standard$250/mo (or $3,000/yr)Starts at ~100 requests/month. Adds advanced signing tools, conditional-logic fields, and data residency options.
PremiumCustom quoteAll Standard features plus premium/white-label branding, electronic ID (eID) support, and unlimited SMS tools; for 500+ requests/month.

Source: https://sign.dropbox.com/products/dropbox-sign-api/pricing

BoldSign API plans

PlanPriceWhat it covers
Essential (Free)$0/mo1 user, 25 envelopes/month, 2 templates, audit trail, signer authentication, automated reminders, mobile apps.
Growth$5/user/mo (annual)50 envelopes/month per user, unlimited templates, bulk send, team management; ~$15/user billed monthly.
Business$15/user/mo (annual)Unlimited envelopes, SSO, AI-powered field detection, CRM integration, custom branding, custom roles; ~$25/user monthly.
Premium$99/mo (annual)Flat rate, unlimited users, 250 envelopes/month, all Business features; ~$138/mo billed monthly.
Enterprise APIFrom $30/moProduction API access, 40 envelopes included, $0.75 per additional envelope, embedded requesting/signing/templates, unlimited templates and sender identities.
Free Sandbox$0Full API access for testing; documents are watermarked as test copies and deleted after 14 days.

Source: https://boldsign.com/electronic-signature-pricing/

Dropbox Sign API pricing guideBoldSign API pricing guideQuality scores on APIbenchmarks →