---
title: "Connect Invoice Ninja to CORE - APIANT.ai"
description: "When \"New expense\" fires in Invoice Ninja, your agent runs \"Discover full text links\" in CORE."
canonical: "https://apiant.ai/connect/invoice-ninja-to-core"
---

# Connect Invoice Ninja to CORE

When **New expense** fires in [Invoice Ninja](https://apiant.ai/connections/invoice-ninja), your agent runs **Discover full text links** in [CORE](https://apiant.ai/connections/core). Describe the whole flow and it is built, tested on every scenario and kept running.

Invoice Ninja **1** trigger Invoice Ninja **10** actions CORE **10** actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

## What do you want Invoice Ninja and CORE to do together?

Give your AI client this address.

`https://mcp.apiant.ai`

One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

### Set it up in your client

### Claude Code

Run this in the directory you want to work in.

`claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai`

Start Claude Code there, approve the server, and sign in in the browser page it opens.

[Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code)

### Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

Example flows

## What Invoice Ninja can start in CORE

- When **New expense** in Invoice Ninja then **Discover full text links** in CORE
- When **New expense** in Invoice Ninja then **Recommend similar outputs** in CORE

Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.

Everything your agent can do with Invoice Ninja and CORE

## Triggers and actions 1 trigger · 20 actions

- Trigger

**New expense**

Triggers when a new expense is created in Invoice Ninja.

- Action

**Delete invoice**

Deletes an invoice from your Invoice Ninja company by its id.

- Action

**Email Invoice**

Emails an invoice to its client using the chosen email template, optionally with a custom subject, body and CC address.

- Action

**Email Quote**

Emails an existing quote to its client, using a quote template or a custom subject and body. Returns the confirmation message and the quote that was emailed.

- Action

**Find Client**

Finds clients by name, email, number or search text and returns the matching client records.

- Action

**Find Credit**

Returns the credits that match a credit number, search text, client, status or date.

- Action

**Find Invoice**

Finds invoices by number, search text, client, status or date, and returns the matches with the first one broken out.

- Action

**Find payments**

Returns the payments that match a payment number, search text, client or other criteria.

- Action

**Find Product**

Finds products in Invoice Ninja by name, product key or other filters, returning the matches and the first match.

- Action

**Find Project**

Finds projects whose name, number or notes match the search text and returns the matches.

- Action

**Find Quote**

Returns the quotes that match a quote number, search text, client, status or date criteria.

- Action

**Discover full text links**

Finds a link to the full text of a research paper from its DOI, searching CORE and other external sources for the best match.

- Action

**Find data providers**

Searches CORE's data providers (repositories and journals that supply research papers) and returns the matching providers.

- Action

**Find outputs**

Searches CORE research outputs (papers and other repository records) by title, author, DOI or a field query and returns the matching outputs.

- Action

**Find works**

Searches CORE works (deduplicated research papers grouped across repositories) and returns the matching works.

- Action

**Get data provider**

Returns the details of one CORE data provider (repository or journal), looked up by its CORE id or OpenDOAR id.

- Action

**Get journal**

Returns a single CORE journal, looked up by its CORE identifier or by ISSN.

- Action

**Get output**

Returns a single research output (paper) from CORE by its CORE ID, including its metadata, authors, abstract and links.

- Action

**Get work**

Returns a single research work from CORE, including its title, authors, abstract, DOI, download link and full text.

- Action

**List outputs of data provider**

Returns the research outputs harvested from a CORE data provider, optionally narrowed by a search query.

- Action

**Recommend similar outputs**

Returns research outputs in CORE similar to a given paper, identified by its CORE ID or DOI, or described by its title, abstract, authors or free text.

## Each app on its own

- [ **Invoice Ninja** Create. Send. Get Paid. Invoice Ninja is a free, code-available suite of apps to invoice clients, accept...](https://apiant.ai/connections/invoice-ninja)
- [ **CORE** Access the world's Open Access research papers](https://apiant.ai/connections/core)

Reviews

## What our customers say

## More from Invoice Ninja

- [ **Invoice Ninja to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/invoice-ninja-to-salesforce)
- [ **Invoice Ninja to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/invoice-ninja-to-slack)
- [ **Invoice Ninja to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/invoice-ninja-to-mailchimp)
- [ **Invoice Ninja to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/invoice-ninja-to-stripe)
- [ **Invoice Ninja to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/invoice-ninja-to-shopify)
- [ **Invoice Ninja to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/invoice-ninja-to-quickbooks-online)

## More into CORE

- [ **Stripe to CORE** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/stripe-to-core)
- [ **Notion to CORE** A new tool that blends your everyday work apps into one. It's the all-in-one workspace for you and your team.](https://apiant.ai/connect/notion-to-core)
- [ **Calendly to CORE** Calendly is a scheduling automation platform for eliminating the back-and-forth emails to find the perfect...](https://apiant.ai/connect/calendly-to-core)
- [ **HubSpot to CORE** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-core)
- [ **Salesforce to CORE** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-core)
- [ **Slack to CORE** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-core)

Questions

## Invoice Ninja and CORE, answered

###

### What can start an automation from Invoice Ninja?

Any of Invoice Ninja's 1 trigger in the catalog, including New expense. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in CORE when something happens in Invoice Ninja?

Any of CORE's 10 actions, including Discover full text links, Find data providers, Find outputs and Find works. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from CORE to Invoice Ninja?

CORE has no triggers in the catalog today, so automations start in Invoice Ninja. If you need the other direction, ask: your agent reads CORE's API documentation and adds it.

###

### Do I have to build a connector for Invoice Ninja or CORE?

No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.

###

### Can my AI client use Invoice Ninja and CORE without building an automation?

Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.

###

### What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

###

### Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.
