> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.cable.tech/v-1-0/api-reference/transaction-data-api/checks/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.cable.tech/_mcp/server.

# Checks


## API Docs

- Checks [Check if a transaction check exists](https://docs.cable.tech/v-1-0/api-reference/transaction-data-api/checks/check-transaction-check.md)
- Checks [Add new transaction check(s)](https://docs.cable.tech/v-1-0/api-reference/transaction-data-api/checks/add-transaction-check.md)
- Checks [Update an existing transaction check](https://docs.cable.tech/v-1-0/api-reference/transaction-data-api/checks/update-transaction-check.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.cable.tech/v-1-0/api-reference/transaction-data-api/checks/openapi.json)
- [OpenAPI YAML](https://docs.cable.tech/v-1-0/api-reference/transaction-data-api/checks/openapi.yaml)