> For the complete documentation index, see [llms.txt](https://docs.transactionlink.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.transactionlink.io/docs/v1/transactionlink-api/api-reference.md).

# API Reference

## API Endpoint

The TransactionLink API can be accessed using the:

* `api.transactionlink.io` for production environment
* `api.sandbox.transactionlink.io` for sandbox environment

<table data-view="cards" data-full-width="false"><thead><tr><th></th><th></th><th data-type="content-ref"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Cases</strong></td><td>Manage your Cases by using TransactionLink API</td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/cases-deprecated.md">Cases (deprecated)</a></td></tr><tr><td><strong>Resources</strong></td><td>Manage Resources by using TransactionLink API</td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/resources.md">Resources</a></td></tr><tr><td><strong>Token</strong></td><td>Generate Token to initialize widget</td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/token.md">Token</a></td></tr><tr><td><strong>Link</strong> </td><td>Generate Link to Worklfow </td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/link.md">Link</a></td></tr><tr><td><strong>Parameters</strong></td><td>Pass custom data to workflow</td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/parameters.md">Parameters</a></td></tr><tr><td><strong>Workflow</strong> </td><td>Run workflow through TransactionLink API</td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/workflows.md">Workflows</a></td></tr><tr><td><strong>Authentication</strong></td><td>Create an api access token and authenticate your requests</td><td></td><td><a href="/docs/v1/transactionlink-api/api-reference/authentication.md">Authentication</a></td></tr></tbody></table>