Legalesign API

6.6easy start · #32of 67
in E-Signature Software

Free to practise onno
Free trialyes
Well documentedyes
Runs where you workno

Runs on api, Web. Paid plans from £1.50/mo.

Legalesign API is ranked #32 of 67 in e-signature software on The Geeks Club, made by Legalesign API (St John's Innovation Centre, Cowley Road, Cambridge, CB4 0WS). It runs on API, Web. There is no free plan. A free trial is offered. Paid plans start at £1.50/mo.

Legalesign API plans and pricing

All plans

Pay As You Go £1.50/mo No subscription required 1 user · 5 templates legalesign.com · 20 Sept 2026

Solo Basic £10/mo £10/month (ex VAT) 1 user · 20 documents/month fair use · 10 templates · API legalesign.com · 30 Sept 2026

Solo Pro £25/mo £25/month (ex VAT) 1 user · 100 documents/month fair use · unlimited templates · API legalesign.com · 30 Sept 2026

Team £15/mo £15/user/month (ex VAT) 2–5 users · 100 documents/user/month fair use · unlimited templates · API legalesign.com · 30 Sept 2026

5+ users & Enterprise Flexible per-document and/or per-user pricing · High-volume pricing · SSO · GDPR and compliance features · Service level agreement legalesign.com · 20 Sept 2026

Pay As You Go £1.50 once £1.50 per sent-document 1 user · 5 templates · API legalesign.com · 30 Sept 2026

Compared on e-signature software

Free plan: No
Embedded signing: Yes
Signer authentication: sms
Webhooks: Yes
Templates: Yes
Signing order: both
Bulk sending: Yes
Maximum signers: 99

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The record

Purpose: The API provides programmatic access to Legalesign platform features for signing, witnessing, and approving documents.
API options: The API offering comprises REST and GraphQL APIs, an SDK, real-time webhooks, and a component and UI library.
Recipients: A document can be sent for signature, witnessing, or approval by up to 99 recipients.
PDF workflows: Users can upload PDFs, add fields with text markers or coordinates, reuse and customize PDFs, and preview them before sending.
Live events: Webhooks or WebSockets can report events in real time to support live dashboards and synchronized data.
Integrations: Legalesign lists integrations including Salesforce, Microsoft Power Automate, Voyager Infinity, LogicMelon, Recruitly, and Timesheet Portal.
Security certifications: Legalesign states that it has been ISO 27001 certified since 2016 and Cyber Essentials Plus certified since 2022.
Data protection: Legalesign says it encrypts data at rest and in transit and creates tamper-proof PDFs with certification and long-term validation.
Authentication: Two-factor authentication is available as standard, while OpenID single sign-on is available to enterprise customers.
Sandbox limit: The REST API sandbox is throttled to 100 calls per hour, and the documentation says recipient email addresses are unrestricted in sandbox mode.
API access: Users must be approved for API development before they can generate API credentials.
Support: The API page directs developers to Legalesign's support team and offers API demos; the pricing comparison lists online documentation across plans and email support on Solo Pro, Team, and Enterprise.
Mobile embedding limitation: Legalesign says embedded PDF signing works best on desktop and that complex forms in mobile contexts, especially iPhones, may not work well.
Intended customers: Legalesign says it serves organizations of all sizes, from PLCs to sole traders, in both public and private sectors.
Price from: £1.50/mo

Where it ranks on The Geeks Club

Best E-Signature Software in 2026#32 of 67

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Sources

legalesign.com/products/api/· checked 30 Sept 2026
legalesign.com/integrations/· checked 30 Sept 2026
legalesign.com/electronic-signature/secure/· checked 30 Sept 2026
docs.legalesign.com/rest-api/tutorial/quickstart· checked 30 Sept 2026
docs.legalesign.com/rest-api/how-to/apidashboard· checked 30 Sept 2026
docs.legalesign.com/rest-api/how-to/iframe· checked 30 Sept 2026
legalesign.com/about/· checked 30 Sept 2026
legalesign.com/pricing/· checked 20 Sept 2026