# retrieve-IQ API documentation

> retrieve-IQ tracks and checks property tax bills for firms and their clients: it fetches bills from the counties, checks the figures, and keeps payment and appeal dates. It never pays a bill. Its GraphQL API and MCP server give a firm's own systems and AI assistants the same data the app shows. These pages explain how to connect, walk through the common tasks, and list every query, mutation and type with the scope each needs.

## Guide

- [Getting started](/docs.md): Everything the app shows is open to your own systems: parcels, tax bills and their checks, payment and appeal deadlines, documents and reports. This guide explains how to connect; the reference lists every query, mutation and type.
- [Common tasks](/docs/recipes.md): The things a firm's own system does against the API, each as a short walk with the exact operations to send. Every example here validates against the schema with each release.
- [Keeping in sync](/docs/sync.md): Two ways to follow the portfolio as the nightly fetch moves it: read it again through the API each morning, or take the file feed retrieve-IQ delivers to you.
- [AI assistants](/docs/assistants.md): The same portfolio, offered to assistants that speak the Model Context Protocol: Claude, and any client that connects to an MCP server over HTTP.
- [Changes](/docs/changes.md): What the API promises about change, and what has changed, newest first.

## Reference

- [Queries](/docs/queries.md): Every read the API answers, in alphabetical order, with what each takes and returns, the scope it needs and an example to send.
- [Mutations](/docs/mutations.md): Every change the API makes, with the scopes each needs and an example to send. A change to a parcel, a bill or an appeal is recorded in that parcel's activity trail. An error anywhere in a request undoes the whole request.
- [Types](/docs/types.md): Every type a query or mutation reaches: objects, inputs, enums, unions, interfaces and scalars.
- [Schema](/docs/schema.graphql): the GraphQL schema itself, in SDL, for a client that generates code from it.

## Optional

- [Everything in one file](/llms-full.txt): the guide and the whole reference, for an assistant that wants all of it at once.