# The Top 16 E-Signature APIs Software Check out this list of the top E-Signature APIs Software products based on user satisfaction. A product's satisfaction score is calculated by a[proprietary algorithm](https://sell.g2.com/g2-scoring-methodologies)that factors in real-user satisfaction ratings from review data. Software buyers can compare products according to their satisfaction scores to streamline the buying process and quickly identify the best products based on the experiences of their peers. [![linkedin](/assets/social-logos/linkedin-afe65e46604a5bd5105ab9c856116204040b6b3f2b2d42562fc8071ca0c48ca0.svg "linkedin")](https://www.linkedin.com/shareArticle?mini=true&summary=Compare+the+best+business+software+and+services+based+on+user+ratings+and+social+data.+Reviews+for+CRM%2C+ERP%2C+CAD%2C+PDM%2C+HR%2C+and+Marketing+software.&title=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated) [![twitter](/assets/social-logos/twitter-61aaec80434c71387b8f7326e480592eae71c0a65afd051d66fce9b75a9bf417.svg "twitter")](https://twitter.com/intent/tweet?text=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated&via=G2dotcom) [![facebook](/assets/social-logos/facebook-350d0b410d6b10debcf893050e803a8633d53561aa42807b087b8daf9be3668f.svg "facebook")](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated) [![gmail](/assets/social-logos/gmail-6db42f21e7c254fae201b112bef0dd15d25223a5cbb32691ce80eab43761eadf.svg "gmail")](https://mail.google.com/mail/?view=cm&fs=1&tf=1&to=&su=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated%0aCompare+the+best+business+software+and+services+based+on+user+ratings+and+social+data.+Reviews+for+CRM%2C+ERP%2C+CAD%2C+PDM%2C+HR%2C+and+Marketing+software.) [![mail](/assets/social-logos/mail-d55c53b04bf49872e40cd2443b85a99caa23394e6cf154ae32a9d08377c15d86.svg "mail")](mailto:?subject=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated%0aCompare+the+best+business+software+and+services+based+on+user+ratings+and+social+data.+Reviews+for+CRM%2C+ERP%2C+CAD%2C+PDM%2C+HR%2C+and+Marketing+software.) ![copy_link](/assets/social-logos/copy_link-05d8dc5dc8576fc78425ad34d07241b060878835e555a30417ff41c18335e575.svg "copy\_link") Filters The next elements are filters and will change the displayed results once they are selected. All SegmentsMid-Market (51-1000 emp.)Small Business (50 or fewer emp.)All RegionsEuropeAsiaNorth America The Top 16 E-Signature APIs Software [![linkedin](/assets/social-logos/linkedin-afe65e46604a5bd5105ab9c856116204040b6b3f2b2d42562fc8071ca0c48ca0.svg "linkedin")](https://www.linkedin.com/shareArticle?mini=true&summary=Compare+the+best+business+software+and+services+based+on+user+ratings+and+social+data.+Reviews+for+CRM%2C+ERP%2C+CAD%2C+PDM%2C+HR%2C+and+Marketing+software.&title=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated) [![twitter](/assets/social-logos/twitter-61aaec80434c71387b8f7326e480592eae71c0a65afd051d66fce9b75a9bf417.svg "twitter")](https://twitter.com/intent/tweet?text=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated&via=G2dotcom) [![facebook](/assets/social-logos/facebook-350d0b410d6b10debcf893050e803a8633d53561aa42807b087b8daf9be3668f.svg "facebook")](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated) [![gmail](/assets/social-logos/gmail-6db42f21e7c254fae201b112bef0dd15d25223a5cbb32691ce80eab43761eadf.svg "gmail")](https://mail.google.com/mail/?view=cm&fs=1&tf=1&to=&su=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated%0aCompare+the+best+business+software+and+services+based+on+user+ratings+and+social+data.+Reviews+for+CRM%2C+ERP%2C+CAD%2C+PDM%2C+HR%2C+and+Marketing+software.) [![mail](/assets/social-logos/mail-d55c53b04bf49872e40cd2443b85a99caa23394e6cf154ae32a9d08377c15d86.svg "mail")](mailto:?subject=Highest+Rated+E-Signature+APIs+Software+in+2026+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fe-signature-apis%3Ftab%3Dhighest_rated%0aCompare+the+best+business+software+and+services+based+on+user+ratings+and+social+data.+Reviews+for+CRM%2C+ERP%2C+CAD%2C+PDM%2C+HR%2C+and+Marketing+software.) ![copy_link](/assets/social-logos/copy_link-05d8dc5dc8576fc78425ad34d07241b060878835e555a30417ff41c18335e575.svg "copy\_link") All SegmentsMid-Market (51-1000 emp.)Small Business (50 or fewer emp.)All RegionsEuropeAsiaNorth America [Collapse AllExpand All](#) G2 Satisfaction Score Information Compare [Expand/Collapse PandaDoc API](#) #1 [![PandaDoc API](https://images.g2crowd.com/uploads/product/hd_favicon/3ad43914ef0cafe72371516e9ae0867a/pandadoc-api.svg)](/products/pandadoc-api/reviews) [PandaDoc API](/products/pandadoc-api/reviews "PandaDoc API") 96 [Expand/Collapse PandaDoc API](#) Overall Satisfaction Score 96 Top Industries of Reviewers: Computer Software 47% Hospital & Health Care 21% Financial Services 18% Human Resources 15% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.3 Meets Requirements Average: 9.2 9.3 Ease of Doing Business With Average: 6.1 9.3 Ease of Setup Average: 8.4 9.1 Quality of Support Average: 8.8 9.2 Ease of Admin Average: 6.3 9.1 [Expand/Collapse Signify](#) #2 [![Signify](https://images.g2crowd.com/uploads/product/hd_favicon/0e064d68ded1ec8b1bd63643b82149e5/signify-signify.svg)](/products/signify-signify/reviews) [Signify](/products/signify-signify/reviews "Signify") 86 [Expand/Collapse Signify](#) Overall Satisfaction Score 86 Top Industries of Reviewers: Banking 40% Computer Software 20% Hospitality 20% Insurance 20% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 10.0 Meets Requirements Average: 9.2 9.8 Ease of Doing Business With Average: 6.1 10.0 Ease of Setup Average: 8.4 10.0 Quality of Support Average: 8.8 10.0 Ease of Admin Average: 6.3 9.9 [Expand/Collapse GetAccept](#) #3 [![GetAccept](https://images.g2crowd.com/uploads/product/hd_favicon/e6889f440c0cb205dbd1ef1d76a18c56/getaccept.svg)](/products/getaccept/reviews) [GetAccept](/products/getaccept/reviews "GetAccept") 71 [Expand/Collapse GetAccept](#) Overall Satisfaction Score 71 Top Industries of Reviewers: Telecommunications 29% Hospitality 24% Computer Software 24% Higher Education 24% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.2 Meets Requirements Average: 9.2 9.0 Ease of Doing Business With Average: 6.1 9.4 Ease of Setup Average: 8.4 9.0 Quality of Support Average: 8.8 9.3 Ease of Admin Average: 6.3 8.9 [Expand/Collapse Foxit eSign](#) #4 [![Foxit eSign](https://images.g2crowd.com/uploads/product/hd_favicon/3b1ab4f14255702d4daac8733de9b4e2/foxit-esign.svg)](/products/foxit-esign/reviews) [Foxit eSign](/products/foxit-esign/reviews "Foxit eSign") 65 [Expand/Collapse Foxit eSign](#) Overall Satisfaction Score 65 Top Industries of Reviewers: Information Technology and Services 38% Financial Services 21% Computer Software 21% Real Estate 21% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.6 Meets Requirements Average: 9.2 9.4 Ease of Doing Business With Average: 6.1 9.1 Ease of Setup Average: 8.4 9.2 Quality of Support Average: 8.8 9.3 Ease of Admin Average: 6.3 9.6 [Expand/Collapse Docusign](#) #5 [![Docusign](https://images.g2crowd.com/uploads/product/hd_favicon/4667fcad45ba0d2ae299215d3f6d3385/docusign.svg)](/products/docusign/reviews) [Docusign](/products/docusign/reviews "Docusign") 61 [Expand/Collapse Docusign](#) Overall Satisfaction Score 61 Top Industries of Reviewers: Computer Software 30% Information Technology and Services 30% Financial Services 27% Insurance 13% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.5 Meets Requirements Average: 9.2 9.2 Ease of Doing Business With Average: 6.1 9.3 Ease of Setup Average: 8.4 9.2 Quality of Support Average: 8.8 8.7 Ease of Admin Average: 6.3 9.2 [Expand/Collapse Xodo Sign](#) #6 [![Xodo Sign](https://images.g2crowd.com/uploads/product/hd_favicon/cf610273d4358b4efe11e0ee970c72f4/xodo-sign.svg)](/products/xodo-sign/reviews) [Xodo Sign](/products/xodo-sign/reviews "Xodo Sign") 58 [Expand/Collapse Xodo Sign](#) Overall Satisfaction Score 58 Top Industries of Reviewers: Information Technology and Services 35% Real Estate 25% Computer Software 23% Financial Services 18% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.3 Meets Requirements Average: 9.2 9.4 Ease of Doing Business With Average: 6.1 9.6 Ease of Setup Average: 8.4 9.3 Quality of Support Average: 8.8 8.8 Ease of Admin Average: 6.3 9.6 [Expand/Collapse OneSpan Sign](#) #7 [![OneSpan Sign](https://images.g2crowd.com/uploads/product/hd_favicon/7318cdf66398e7f339bb1f81bcfc3199/onespan-sign.svg)](/products/onespan-sign/reviews) [OneSpan Sign](/products/onespan-sign/reviews "OneSpan Sign") 58 [Expand/Collapse OneSpan Sign](#) Overall Satisfaction Score 58 Top Industries of Reviewers: Computer Software 39% Financial Services 22% Banking 19% Insurance 19% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.3 Meets Requirements Average: 9.2 9.5 Ease of Doing Business With Average: 6.1 9.7 Ease of Setup Average: 8.4 9.0 Quality of Support Average: 8.8 9.8 Ease of Admin Average: 6.3 8.8 [Expand/Collapse Legalesign API](#) #8 [![Legalesign API](https://images.g2crowd.com/uploads/product/hd_favicon/e6d259ebc83019761d532ec4a8cccdbd/legalesign-api.svg)](/products/legalesign-api/reviews) [Legalesign API](/products/legalesign-api/reviews "Legalesign API") 57 [Expand/Collapse Legalesign API](#) Overall Satisfaction Score 57 Top Industries of Reviewers: Staffing and Recruiting 44% Computer Software 33% Financial Services 11% Information Technology and Services 11% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.3 Meets Requirements Average: 9.2 9.8 Ease of Doing Business With Average: 6.1 9.7 Ease of Setup Average: 8.4 9.5 Quality of Support Average: 8.8 10.0 Ease of Admin Average: 6.3 9.2 [Expand/Collapse Anvil](#) #9 [![Anvil](https://images.g2crowd.com/uploads/product/hd_favicon/e3d8379607dc48e4be5d5ffa14a33e4d/anvil-foundry-anvil.svg)](/products/anvil-foundry-anvil/reviews) [Anvil](/products/anvil-foundry-anvil/reviews "Anvil") 44 [Expand/Collapse Anvil](#) Overall Satisfaction Score 44 Top Industries of Reviewers: Construction 33% Financial Services 33% Computer Software 17% Graphic Design 17% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 8.9 Meets Requirements Average: 9.2 9.1 Ease of Doing Business With Average: 6.1 0.0 Ease of Setup Average: 8.4 9.1 Quality of Support Average: 8.8 10.0 Ease of Admin Average: 6.3 0.0 [Expand/Collapse DropBox Sign API](#) #10 [![DropBox Sign API](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_b93f9e7f42d8e15de31f75b80d3fa02c/b492e80e-b6df-4d49-8965-dcbcefa6cf92.jpg)](/products/dropbox-sign-api/reviews) [DropBox Sign API](/products/dropbox-sign-api/reviews "DropBox Sign API") 40 [Expand/Collapse DropBox Sign API](#) Overall Satisfaction Score 40 Top Industries of Reviewers: Information Technology and Services 33% Financial Services 24% Computer Software 24% Insurance 19% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 8.7 Meets Requirements Average: 9.2 8.8 Ease of Doing Business With Average: 6.1 9.0 Ease of Setup Average: 8.4 8.4 Quality of Support Average: 8.8 8.6 Ease of Admin Average: 6.3 8.4 [Expand/Collapse SignNow API](#) #11 [![SignNow API](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_5b7025a6cde6ae49ec0e50875b08930f/signnow-api.png)](/products/signnow-api/reviews) [SignNow API](/products/signnow-api/reviews "SignNow API") 40 [Expand/Collapse SignNow API](#) Overall Satisfaction Score 40 Top Industries of Reviewers: Computer Software 40% Computer & Network Security 20% Financial Services 20% Accounting 20% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 8.6 Meets Requirements Average: 9.2 9.8 Ease of Doing Business With Average: 6.1 9.3 Ease of Setup Average: 8.4 8.7 Quality of Support Average: 8.8 8.7 Ease of Admin Average: 6.3 8.7 [Expand/Collapse Zoho Sign API](#) #12 [![Zoho Sign API](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_99954fe7994c139f4297f126caabd3fb/caa6829b-532c-4637-9cd2-7c7292642c67.jpg)](/products/zoho-sign-api/reviews) [Zoho Sign API](/products/zoho-sign-api/reviews "Zoho Sign API") 36 [Expand/Collapse Zoho Sign API](#) Overall Satisfaction Score 36 Top Industries of Reviewers: Information Technology and Services 36% Computer Software 36% Computer & Network Security 14% Marketing and Advertising 14% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.3 Meets Requirements Average: 9.2 8.9 Ease of Doing Business With Average: 6.1 0.0 Ease of Setup Average: 8.4 9.3 Quality of Support Average: 8.8 8.4 Ease of Admin Average: 6.3 0.0 [Expand/Collapse Adobe Acrobat Sign API](#) #13 [![Adobe Acrobat Sign API](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_d186f1cfbf1f82bc872c76769abffa7e/e714dee4-7023-45dc-b0fe-737784315b5f.png)](/products/adobe-acrobat-sign-api/reviews) [Adobe Acrobat Sign API](/products/adobe-acrobat-sign-api/reviews "Adobe Acrobat Sign API") 35 [Expand/Collapse Adobe Acrobat Sign API](#) Overall Satisfaction Score 35 Top Industries of Reviewers: Financial Services 43% Information Technology and Services 29% Education Management 14% Consumer Services 14% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 8.8 Meets Requirements Average: 9.2 9.3 Ease of Doing Business With Average: 6.1 0.0 Ease of Setup Average: 8.4 9.4 Quality of Support Average: 8.8 8.9 Ease of Admin Average: 6.3 0.0 [Expand/Collapse Yousign API](#) #14 [![Yousign API](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_6e10b1753e877dba25361ce219b9448c/cc09ba00-5d6e-42b6-a248-d85bd813f5a0.png)](/products/yousign-api/reviews) [Yousign API](/products/yousign-api/reviews "Yousign API") 32 [Expand/Collapse Yousign API](#) Overall Satisfaction Score 32 Top Industries of Reviewers: Information Technology and Services 57% Computer Software 21% Commercial Real Estate 14% Education Management 7% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 8.1 Meets Requirements Average: 9.2 8.4 Ease of Doing Business With Average: 6.1 0.0 Ease of Setup Average: 8.4 9.0 Quality of Support Average: 8.8 8.8 Ease of Admin Average: 6.3 9.4 [Expand/Collapse Yousign](#) #15 [![Yousign](https://images.g2crowd.com/uploads/product/hd_favicon/612e07e6501b6d67531d030e60c189a3/yousign.svg)](/products/yousign/reviews) [Yousign](/products/yousign/reviews "Yousign") 30 [Expand/Collapse Yousign](#) Overall Satisfaction Score 30 Top Industries of Reviewers: Real Estate 33% Investment Management 22% Insurance 22% Computer Software 22% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 9.1 Meets Requirements Average: 9.2 9.1 Ease of Doing Business With Average: 6.1 0.0 Ease of Setup Average: 8.4 0.0 Quality of Support Average: 8.8 8.9 Ease of Admin Average: 6.3 0.0 [Expand/Collapse Formstack Sign](#) #16 [![Formstack Sign](https://images.g2crowd.com/uploads/product/hd_favicon/63e0eb09f83b6a4603efff00f2a7f686/formstack-sign.svg)](/products/formstack-sign/reviews) [Formstack Sign](/products/formstack-sign/reviews "Formstack Sign") 1 [Expand/Collapse Formstack Sign](#) Overall Satisfaction Score 1 Top Industries of Reviewers: Insurance 38% Higher Education 25% Real Estate 25% Online Media 13% Ratings from Reviews (out of 10): Ease of Use Average: 8.9 5.5 Meets Requirements Average: 9.2 9.1 Ease of Doing Business With Average: 6.1 4.0 Ease of Setup Average: 8.4 5.4 Quality of Support Average: 8.8 3.3 Ease of Admin Average: 6.3 0.0