A DocuSign API alternative
The API is on every plan, embedded signing included, and test mode is free.
Estimate your yearly cost
Set how many envelopes your app sends.
List prices before tax, as of October 2026, on yearly billing where the vendor offers it. Each vendor’s API plan from the table below, with its published extras or volume tier. Counts API and MCP envelopes; sending from the eSignStack app is unlimited on paid plans.
API comparison
| Feature | eSignStack | DocuSign |
|---|---|---|
| Entry price | Free for 5 a month, or $12 a month for 50 | $50 a month for 40 (Starter) |
| 100 envelopes a month | $20 a month (Pro) | $300 a month (Intermediate) |
| 500 envelopes a month | $82.50 a month (Platform) | Enhanced, price on request |
| Extra envelopes | 25¢ each on Platform | Not published |
| Signing inside your app | Every plan | Enhanced only, price on request |
| Test mode | Free on every plan | Free developer account, demo only |
DocuSign’s developer plans as listed on its pricing page on20 October 2026, yearly billing, before tax. eSignStack figures are on yearly billing too.
Other API plans
The entry plan of each, per month.
| Plan | Per month | Envelopes included | Each extra |
|---|---|---|---|
| eSignStack Free | $0 | 5 | — |
| eSignStack Starter | $12 | 50 | — |
| eSignStack Platform | $99 | 500 | $0.25 |
| BoldSign Enterprise API | $30 | 40 | $0.75 |
| Xodo Sign API Light | $50 | 50 | $1.50 |
| Dropbox Sign API Essentials | $75 | 50 | Not listed |
| SignWell API | $0 | 25 | From $0.85 |
| Documenso Platform | $250 | Unlimited | — |
Entry API plans as listed on each vendor’s pricing page, October 2026, in US dollars before tax. Some are yearly prices shown per month.
Questions
Is the API on every plan?
Yes, including Free. Webhooks, embedded signing and the MCP server are too.
Is test mode free?
Yes. Test envelopes are never billed.
Which plan do I need to embed signing in my app?
Any plan, Free included. On DocuSign, embedded signing is only on its Enhanced developer plan.
Can each of my customers get their own workspace?
Yes, on Platform. One platform API key creates and manages a workspace for each business you serve.
About PlatformsTry it in test mode
Make a free account and a test key. Test documents are never billed.