Find the right guide fast
Documentation is organized by section. Start with Getting Started, then dive into authentication, marketplace APIs, or platform topics as you need them.
Getting Started
Quick start guides for first API calls.
Introduction
Welcome to LesterTechLabs developer documentation. Use this hub for platform guides. For endpoint-level details, open an API from the marketplace and visit …
Quickstart
1. Create an account on the Developer Platform 2. Generate a sandbox API key 3. Send a GET request to /v1/health with …
Authentication
API keys, headers, and secure access patterns.
API Keys
Authenticate requests with an API key in the X-API-Key header. Keep sandbox and live keys separate. Rotate keys if they are exposed, …
Webhooks
Some APIs deliver async events to your webhook URL. Verify signatures when provided, respond quickly with 2xx, and process work asynchronously so …
API Guides
How to work with marketplace APIs in production.
Errors & Retries
Expect standard HTTP status codes. Retry idempotent GETs with backoff on 429 and 5xx. Do not blindly retry non-idempotent POSTs without checking …
Rate Limits
Each API publishes a per-hour (or similar) quota on its product page. Respect Retry-After when present. Contact us for higher limits on …
Platform
Deploy and operate with LesterTechLabs tools.
Lester PaaS
Lester PaaS is our developer cloud for Git-based deploys, managed Postgres, and SSL close to the people using the product. Product overview: …
SDKs
Official client libraries help you call marketplace APIs without hand-rolling request signing and retries for every language. Browse SDKs: /developers/sdks/
Docs FAQs
How is Documentation different from API docs?
Documentation covers platform guides and tutorials. Per-API endpoint references live under each marketplace API’s Docs page.
I only need a payments integration — what should I open?
Go to API Marketplace → Payments API for overview and pricing, then open its Docs for endpoints. Use Getting Started if you don’t have a key yet.
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