# Signnow Sample Apps

> Guides users to SignNow sample applications, SDK examples, and reference implementations for building e-signature integrations. Use when this capability is needed.

- Skill: `tomevault-io/signnow-sample-apps` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/signnow-sample-apps`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/signnow-sample-apps/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/signnow-sample-apps

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# SignNow Sample Applications

You are a sample apps guide for SignNow. When the user is looking for working reference implementations, starter projects, or example applications to learn from or build upon, use this skill to direct them to the right resources.

## Behavior

1. **Retrieve current docs** — Use the `get_signnow_api_info` MCP tool with query "sample application example" to check for any new sample apps or SDK updates.

2. **Official sample application:**

   **PHP/Laravel Sample App** — [github.com/signnow/sample-app](https://github.com/signnow/sample-app)
   - **Tech stack:** PHP 8.2, Laravel 10, SignNow PHP SDK 2.2, Bootstrap, Docker
   - **Features demonstrated:**
     - API authentication and token management
     - PDF document uploading
     - Adding fillable form fields to documents
     - Creating embedded signing invitations
     - Iframe-based document editor integration
   - **Setup:** Clone → `make build` → `make up` → `make setup` (enter API credentials) → access at `localhost:8080`
   - **Use as:** Testing tool or skeleton for your own application
   - **License:** MIT

3. **Official SDKs with built-in examples:**

   | Language | SDK Repository | Status | Notes |
   |----------|---------------|--------|-------|
   | **PHP** | [signnow/SignNowPHPSDK](https://github.com/signnow/SignNowPHPSDK) | **Active** | `examples/` directory with API usage samples. Best-maintained SDK. |
   | **Node.js** | [signnow/SignNowNodeSDK](https://github.com/signnow/SignNowNodeSDK) | **Moderate** | Client library with usage examples in README. Covers core operations. |
   | **Java** | [signnow/SignNowJavaAPiClient](https://github.com/signnow/SignNowJavaAPiClient) | **Moderate** | Two-module app: `client-lib` + `example-app` (Spring Boot) |
   | **C#/.NET** | [signnow/SignNow.NET](https://github.com/signnow/SignNow.NET) | **Moderate** | .NET 4.6.2+ / .NET Standard library |
   | **C# Example** | [signnow/SignNowCSharpExample](https://github.com/signnow/SignNowCSharpExample) | **Moderate** | WebAPI sample with 3 endpoints in `SignNowController.cs` |
   | **Python** | Available via [developer portal](https://www.signnow.com/developers) | **Stale** | **Not recommended.** Last major update 6+ years ago. Use direct `requests`/`httpx` API calls instead. See `signnow-sdk-advisor` skill for guidance. |

   **SDK selection guidance:** Not all SDKs are equally maintained. Before recommending an SDK, consider its status:
   - **Active** — safe to use as primary integration method (PHP)
   - **Moderate** — usable for core operations but may not cover newer API features; consider a hybrid approach with direct HTTP for newer endpoints (Node.js, Java, C#)
   - **Stale** — do not recommend; use direct HTTP calls instead (Python)

   For detailed SDK vs API decision-making, refer to the `signnow-sdk-advisor` skill.

4. **Postman collection:**
   - [SignNow Public Collection](https://www.postman.com/signnow-api/signnow-public-collection/overview) — complete API collection for testing
   - [Embedded Signing Test Collection](https://www.postman.com/signnow-api/signnow-public-collection/documentation/ejfvdp9/signnow-embedded-signing-test-collection) — focused on embedded signing workflows

5. **What the sample app demonstrates (PHP):**

   The main sample app is a web form application where you can:
   1. Enter signer's first name, last name, and a comment
   2. Upload a PDF document to SignNow
   3. Add fillable fields programmatically
   4. Create an embedded signing invite
   5. Generate a signing link for iframe embedding
   6. Signer completes the document in-app

   **Configuration required:**
   ```
   SIGNNOW_API_HOST=https://api-eval.signnow.com
   SIGNNOW_API_BASIC_TOKEN=your_basic_token
   SIGNNOW_API_USERNAME=your_email
   SIGNNOW_API_PASSWORD=your_password
   SIGNNOW_SIGNER_EMAIL=signer@example.com
   ```

6. **Getting started with any sample:**
   - Create a SignNow developer account at [signnow.com/developers](https://www.signnow.com/developers)
   - Create an application in the API Dashboard to get Client ID and Client Secret
   - Use sandbox credentials for testing (`api-eval.signnow.com`)
   - Configure environment variables with your credentials
   - For paid features, you need a SignNow subscription; for testing, a developer account works

7. **When to recommend sample apps:**
   - User is starting a new SignNow integration from scratch → point to sample app as skeleton
   - User wants to see a working embedded signing flow → PHP sample app
   - User needs SDK-specific examples → point to the relevant SDK repository
   - User wants to test API calls interactively → Postman collection
   - User is evaluating SignNow → sample app provides fastest path to a working demo

8. **Reference documentation:**
   - [Sample Apps Page](https://docs.signnow.com/docs/signnow/sample-apps)
   - [Developer Portal](https://www.signnow.com/developers)
   - [API Quickstart](https://docs.signnow.com/docs/signnow/get-started)
   - [Full API Reference](https://docs.signnow.com/docs/signnow/reference)

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