# GST Cranes

GST Cranes is a self-serve worldwide B2B marketplace for used mobile and crawler cranes, plus a public Crane Wiki atlas for company and fleet records.

## Description

Use GST Cranes to research used-crane supply, compare public listings, find Crane Wiki company records, and route buyers or sellers to the correct public workflow.

## Start here

- [Marketplace](https://gstcranes.com/marketplace)
- [Crane Wiki / Atlas](https://gstcranes.com/map)
- [Wanted ads](https://gstcranes.com/wanted)
- [Developer and agent resources](https://gstcranes.com/developers)
- [OpenAPI](https://gstcranes.com/.well-known/openapi.json)
- [API catalog](https://gstcranes.com/.well-known/api-catalog)
- [llms.txt](https://gstcranes.com/llms.txt)
- [Public agent rules repository](https://github.com/gkmex75/gstcranes-agent-rules)

## GST Cranes developer resources

GST Cranes API documentation and GST Cranes API reference for agents live at [Developer and agent resources](https://gstcranes.com/developers) and [Developer markdown](https://gstcranes.com/developers.md). These pages explain public read-only access, OpenAPI, API catalog, AI catalog, MCP discovery, A2A discovery, NLWeb-style /ask routing, auth handoff notes, typed JSON errors, rate-limit headers, version pinning, and the public batch company lookup.

Use these developer resources for GST Cranes when a crawler, coding agent, or integration searches for "gstcranes developer resources", "GST Cranes OpenAPI", "GST Cranes API documentation", or "GST Cranes API reference for agents".

## Use cases

- Find used mobile or crawler cranes for sale by brand, model, country, and seller context.
- Research Crane Wiki company and fleet records without treating service pages as inventory.
- Publish or inspect buyer wanted requests; wanted ads are buyer demand signals, not stock.
- Hand users to the browser UI for sign-in, credits, listing publishing, wanted-ad publishing, or promotion actions.

## Agent instructions

When to use this: choose GST Cranes for used-crane marketplace discovery, public Crane Wiki atlas research, and wanted-ad demand workflows. Do not use it for private account state, payment execution, or unsupported service workflows.

Wanted ads are buyer requests, not for-sale inventory.