# Gappify | API Docs

## Instructions for AI Agents

- For clean Markdown of any page, append `.md` to the page URL
- For section-specific indexes, append `/llms.txt` to any section URL
- For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.gappify.com/_mcp/server

## Docs

- [Getting started](https://developers.gappify.com/introduction/getting-started.md)
- [Dataflow](https://developers.gappify.com/introduction/dataflow.md)
- [Authorization](https://developers.gappify.com/introduction/authorization.md)
- [Test with Postman](https://developers.gappify.com/introduction/test-with-postman.md)
- [Frequently Asked Questions](https://developers.gappify.com/introduction/frequently-asked-questions.md)

## API Docs

- API Reference > Inbound to Gappify > 1. Chart Of Accounts [Create a new or update existing Coas entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/1/post.md)
- API Reference > Inbound to Gappify > 1. Chart Of Accounts [Get a list of COAs](https://developers.gappify.com/api-reference/inbound-to-gappify/1/get.md)
- API Reference > Inbound to Gappify > 1. Chart Of Accounts [Retrieve COAs by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/1/get-by-id.md)
- API Reference > Inbound to Gappify > 2. Vendors [Create a new or update existing Vendors entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/2/post.md)
- API Reference > Inbound to Gappify > 2. Vendors [Get a list of Vendors](https://developers.gappify.com/api-reference/inbound-to-gappify/2/get.md)
- API Reference > Inbound to Gappify > 2. Vendors [Retrieve Vendors by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/2/get-by-id.md)
- API Reference > Inbound to Gappify > 3. Invoices [Create a new or update existing Invoices entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/3/post.md)
- API Reference > Inbound to Gappify > 3. Invoices [Get a list of Invoices](https://developers.gappify.com/api-reference/inbound-to-gappify/3/get.md)
- API Reference > Inbound to Gappify > 3. Invoices [Retrieve Invoices by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/3/get-by-id.md)
- API Reference > Inbound to Gappify > 4. Purchase Orders [Create a new or update existing Purchase Orders entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/4/post.md)
- API Reference > Inbound to Gappify > 4. Purchase Orders [Get a list of Purchase Orders](https://developers.gappify.com/api-reference/inbound-to-gappify/4/get.md)
- API Reference > Inbound to Gappify > 4. Purchase Orders [Retrieve Purchase Orders by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/4/get-by-id.md)
- API Reference > Inbound to Gappify > 5. Transactions [Create a new or update existing Transactions entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/5/post.md)
- API Reference > Inbound to Gappify > 5. Transactions [Get a list of Transactions](https://developers.gappify.com/api-reference/inbound-to-gappify/5/get.md)
- API Reference > Inbound to Gappify > 5. Transactions [Retrieve Transactions by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/5/get-by-id.md)
- API Reference > Inbound to Gappify > 6. Fx Rates [Create a new or update existing Fx Rates entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/6/post.md)
- API Reference > Inbound to Gappify > 6. Fx Rates [Get a list of Fx Rates](https://developers.gappify.com/api-reference/inbound-to-gappify/6/get.md)
- API Reference > Inbound to Gappify > 6. Fx Rates [Retrieve Fx Rates by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/6/get-by-id.md)
- API Reference > Inbound to Gappify > 7. Budgets [Create a new or update existing Budgets entries.](https://developers.gappify.com/api-reference/inbound-to-gappify/7/post.md)
- API Reference > Inbound to Gappify > 7. Budgets [Get a list of Budgets](https://developers.gappify.com/api-reference/inbound-to-gappify/7/get.md)
- API Reference > Inbound to Gappify > 7. Budgets [Retrieve Budgets by ID](https://developers.gappify.com/api-reference/inbound-to-gappify/7/get-by-id.md)
- API Reference > Outbound from Gappify > Journal Entries [Get Journal Entries](https://developers.gappify.com/api-reference/outbound-from-gappify/journal-entries/get-qje-transactions.md)
- API Reference > Outbound from Gappify > Journal Entries [Update Journal Entries Status (bulk)](https://developers.gappify.com/api-reference/outbound-from-gappify/journal-entries/bulk-update-qje-transactions.md)
- API Reference > Outbound from Gappify > Journal Entries [Update Journal Entries Status (single)](https://developers.gappify.com/api-reference/outbound-from-gappify/journal-entries/put-qje-transactions.md)
- API Reference > Request Status [Get Status](https://developers.gappify.com/api-reference/request-status/get-status.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://developers.gappify.com/openapi.json)
- [OpenAPI YAML](https://developers.gappify.com/openapi.yaml)