--- title: Dropbox Sign (HelloSign) API Integration on Truto slug: hellosign category: E-Signature canonical: "https://truto.one/integrations/detail/hellosign/" --- # Dropbox Sign (HelloSign) API Integration on Truto **Category:** E-Signature **Status:** Generally available ## Unified APIs ### Unified User Directory API - **Roles** — The Role object represents a role of a User. - **Users** — The User object represents a User. ## How it works 1. **Link your customer's Dropbox Sign (HelloSign) account.** Use Truto's frontend SDK; we handle every OAuth and API key flow so you don't need to create the OAuth app. 2. **Authentication is automatic.** Truto refreshes tokens, stores credentials securely, and injects them into every API request. 3. **Call Truto's API to reach Dropbox Sign (HelloSign).** The Proxy API is a 1-to-1 mapping of the Dropbox Sign (HelloSign) API. 4. **Get a unified response format.** Every response uses a single shape, with cursor-based pagination and data in the `result` field. ## Use cases - **Embed offer letter signing into your HR platform** — ATS and HR tech companies can let recruiters send offer letters for signature directly within their app, using Dropbox Sign templates populated with candidate data. Webhook-driven status updates automatically advance candidates through hiring stages. - **Automate contract execution in your sales platform** — Sales enablement and CRM platforms can trigger signature requests for MSAs, SOWs, and order forms as deals progress, keeping the signing experience embedded and eliminating context-switching for reps and buyers. - **Power lease signing workflows in property management software** — Proptech platforms can offer landlords embedded document preparation and sequential tenant signing, with completed leases automatically archived and move-in workflows triggered upon full execution. - **Streamline borrower document signing in lending platforms** — Fintech and loan origination systems need borrowers to sign disclosures and agreements quickly with strong identity verification. Embedding Dropbox Sign enables compliant, in-app signing with SMS-based authentication and automatic audit trail retrieval. - **Sync Dropbox Sign user and role data into your platform** — SaaS companies building admin consoles or access management features can pull Dropbox Sign account users and roles via Truto's Unified User Directory API to display team structure, manage permissions, or audit who has signing authority. ## What you can build - **Embedded signature request launcher** — Let your users trigger Dropbox Sign signature requests with pre-filled template data directly from your app's workflow without navigating to an external tool. - **Real-time signing status dashboard** — Surface live document status — sent, viewed, signed, or declined — by consuming Dropbox Sign webhook events and displaying them natively in your product. - **Signed document auto-archival** — Automatically retrieve and store the final signed PDF and audit trail into your platform's file storage the moment all parties have signed. - **User and role directory sync** — Pull Dropbox Sign account users and their roles into your application using Truto's Unified User Directory API to power team management, audit logs, or permission controls. - **Template-driven document generation** — Map your internal data fields to Dropbox Sign template custom fields so your users can generate personalized, signature-ready documents in one click. - **Sequential signing workflow orchestration** — Configure multi-party signing order so documents route from one signer to the next automatically, with your app tracking progress at each step. ## FAQs ### What authentication method does Dropbox Sign use? Dropbox Sign supports OAuth 2.0 for user-level authorization and API key authentication for server-to-server access. Truto handles the OAuth flow and token refresh so your end users can connect their accounts without friction. ### Which Unified APIs does Truto support for Dropbox Sign today? Truto currently maps Dropbox Sign to the Unified User Directory API, covering Users and Roles. Additional tools and unified API models (such as e-signature-specific resources) are built on request based on your use case. ### Can I access signature requests, templates, and documents through Truto? Dropbox Sign's API supports these resources natively. Truto does not yet have pre-built tools for signature requests or templates, but they can be built on request to match your specific workflow requirements. ### How does Truto handle Dropbox Sign's rate limits? Dropbox Sign enforces rate limits that vary by plan (typically around 100 requests per minute for production keys). Truto manages retry logic and rate-limit handling so your integration degrades gracefully under load. ### Can my end users connect their Dropbox Sign accounts themselves? Yes. Truto provides an embeddable connect flow that guides your end users through OAuth authorization with Dropbox Sign, so they can link their accounts without any manual credential sharing or engineering effort on your side. ### Does Truto support Dropbox Sign webhook events? Webhook consumption for events like signature_request_signed or signature_request_all_signed is a capability that can be configured as part of a custom integration build. Contact Truto to scope event-driven workflows for your use case.