Payment Gateway
NMI MCP connector
Connect NMI to Claude, ChatGPT, Cursor or any MCP client through Elaichi, and your team can look up payments, issue refunds, send invoices and manage subscriptions and plans by asking in plain language, with every action logged.
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How it connects. Connects with an API key. The credential goes into a vault nobody reads back.
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One address. https://api.elaichi.ai/mcp, the same for every user.
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Their own access. An agent never gets more than the person it acts for.
How to connect
How to connect NMI to Claude, ChatGPT or Cursor
Two steps, about a minute.
In Elaichi
Connect NMI once
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Open Connections, choose Add connection, and pick NMI.
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Optionally set Share with to give a team access, then press Connect.
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Paste a NMI API key. One person generates a token in NMI and pastes it once. Everyone else works through Share with, and never sees it.
The credential is vaulted. Nobody reads it back, not even the AI.
Add connection
Choose a connector.
In your AI client
Point it at one endpoint
Everyone in the organization uses the same address, and each person only ever reaches what their own account allows.
Connect NMI to Claude
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1
Open Customize, then Connectors.
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2
Press Add.
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3
Name it, paste the MCP server URL, then Continue.
https://api.elaichi.ai/mcp -
4
Sign in and approve.
On Team and Enterprise, an Owner adds it once. Everyone else turns it on for themselves.
Connect NMI to ChatGPT
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1
Open Plugins, then press the + button.
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2
Name it and paste the endpoint into Server URL.
https://api.elaichi.ai/mcp -
3
Leave Authentication on OAuth, then tick the risk acknowledgement.
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4
Press Create, then sign in and approve.
Works on the web today. The plugin directory lives at chatgpt.com/plugins.
Connect NMI to Cursor
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1
Open
~/.cursor/mcp.json. -
2
Add the endpoint under
mcpServers.https://api.elaichi.ai/mcp -
3
Reload Cursor, then sign in and approve.
~/.cursor/mcp.json
{
"mcpServers": {
"elaichi": {
"url": "https://api.elaichi.ai/mcp"
}
}
}
Set up per machine, so repeat it on each computer you work from.
Connect NMI to any MCP client
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1
Add the endpoint as a remote MCP server.
https://api.elaichi.ai/mcp -
2
Sign in and approve.
{
"mcpServers": {
"elaichi": {
"url": "https://api.elaichi.ai/mcp"
}
}
}
The Elaichi Agent already has these tools, with nothing to set up.
Use cases
What teams do with NMI through Elaichi
Every one of these runs inside the access the person already has, and lands in the same audit log.
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Finance
Look up a payment before answering a query
Pull up a single NMI transaction by its ID to check the amount, card details and status before replying to a customer or the bank.
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Support
Refund or void a charge on the spot
When a customer calls about a duplicate charge, void it if it has not settled or refund it if it has, without leaving the conversation.
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Accounts receivable
Draft, send and close invoices
Create an invoice in NMI from the details in an email, send it to the customer, then close it once payment arrives.
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Billing
Pause or change a customer's subscription
Find a customer's recurring subscription in NMI and update the amount, schedule or plan when their contract changes, or cancel it when they leave.
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Operations
Set up and tidy recurring plans
Create new pricing plans, list the ones already in NMI, and retire plans nobody is on anymore.
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Sales
Authorize a card, capture later
Run an authorization on a new customer's card to confirm it is good, then capture the payment once the order ships.
Try asking
- “List all NMI invoices still open past due date.”
- “Refund the NMI payment on invoice 4821.”
- “Show yesterday's declined NMI sales by amount.”
AI tools
NMI tools for your AI agents
68 tools are ready to call through Elaichi's MCP endpoint the moment you connect NMI, governed by the same roles, restrictions, and audit log as everything else in Elaichi.
No tools match your search.
See it in Elaichi
What connecting NMI gets you
6 screens from the product, each doing one job for your NMI account.
The agent
Ask in plain language, answer from NMI.
Starter prompts pull live NMI payments, invoices and refunds into a straight answer.
- payments
- invoices
- refunds
- authorizations
Ask Elaichi to work across your apps.
List all NMI invoices still open past due date.
Refund the NMI payment on invoice 4821.
Show yesterday's declined NMI sales by amount.
Also runs in Claude, ChatGPT or Cursor
MCP clients
Claude, ChatGPT and Cursor reach NMI.
One org-wide MCP endpoint over OAuth, no SDK and no shared API key.
Copy the endpoint
Tool catalog
68 NMI tools, no custom code.
Sales, auths, captures, voids, refunds and invoices are cataloged and ready to call.
- NMI payments sale
- NMI payments auth
- NMI payments credit
- NMI payments validate
Toolboxes
Every team gets its own NMI toolbox.
Finance keeps invoices, support keeps refunds, each toolbox scoped to one team.
- Finance
- Support
- Billing operations
- Sales
Shared connections
Teammates charge cards without seeing credentials.
Each NMI connection shows who connected it and which teams and members share it.
- Finance
- Support EMEA
- Billing ops
- Risk review
Audit log
Every refund has a name against it.
When, who, what happened, type and resource for each NMI call, append-only.
- When
- Who
- What happened
- Type
Launching soon
From answering questions to doing the work
A person no longer has to ask. A trigger starts the work, inside the same permissions and the same audit log as everything else. Automations and live dashboards are launching soon, on the Black plan.
Automations
A schedule fires, a digest posts back.
Six steps fetch NMI transactions, group them, draft a digest, then wait for approval.
NMI digest
Run 418 · started 2 minutes ago · on behalf of Emma Laurent
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✓
Schedule
Every weekday at 08:00
0.2s -
✓
Fetch payments
NMI
1.4s -
✓
Group by owner
Transform
0.1s -
✓
Draft the digest
Agent step
Ran with 4 tools, returned a structured summary
6.2s -
Approve the digest
Needs approval
Assigned to Michael Brennan
Approve Deny -
Post the digest
NMI
Queued
Collections and dashboards
NMI settlement numbers, counted not guessed.
Four metrics, fourteen days of transactions and a team breakdown, refreshed on schedule.
NMI health
Refreshed 4 minutes ago · every 15 minutes · from the payments collection
Payments
1,284 ↓ 12%
Invoices
96 ↓ 8%
Needs attention
3 ↑ 2
Updated this week
412 ↑ 9%
Payments created
Last 14 days
By team
Share of activity
Finance 34%
Support EMEA 27%
Billing ops 21%
Risk review 18%
FAQ
Frequently asked questions
How do I connect NMI to Claude?
First connect NMI in Elaichi by pasting in an API key from your NMI merchant account, which takes about a minute. Then in Claude go to Customize, then Connectors, then Add, and paste in https://api.elaichi.ai/mcp. There is no OAuth application to register and no client ID or secret to generate, so the NMI side is a single key and nothing else.
Does NMI work with ChatGPT and Cursor as well as Claude?
Yes. Once NMI is connected in Elaichi, the same endpoint, https://api.elaichi.ai/mcp, works in Claude, ChatGPT, Cursor, any other MCP client and the Elaichi Agent. You connect NMI once and every client your team uses picks it up.
What can an AI agent actually do with my NMI data?
With NMI connected, an agent can look up a payment by its ID, run a sale, authorize and capture a card, void or refund a charge, and create, update, send and close invoices. It can also create and update subscriptions and plans, or list what is already there. Because NMI offers a lot of actions, short concrete asks like "refund transaction 12345" work better than long paragraphs.
Does connecting NMI give the AI access to my whole merchant account?
An agent working through NMI in Elaichi can only do what the API key it was connected with allows, and Elaichi can narrow that further but never widen it. Every call runs under the person who signed in to Elaichi, so a support agent's session cannot do more in NMI than that person is permitted to do.
Can I stop an agent from refunding, voiding or deleting things in NMI?
Yes. In Elaichi you restrict NMI actions one at a time, so you can allow looking up payments and sending invoices while blocking refunds, voids or deleting subscriptions and plans. A blocked action is never shown to Claude, ChatGPT, Cursor or any other client, so no prompt, accidental or otherwise, can reach it.
What happens to a NMI connection when someone leaves?
When you offboard someone in Elaichi, their access to NMI through every connected client ends at once. If they had been using a shared NMI connection, it keeps working for everyone else on the team. If you want to remove NMI entirely, disconnecting it once in Elaichi removes it from Claude, ChatGPT, Cursor and every other client at the same time.
Put NMI in front of your team
Fourteen days on Gold, no credit card. Connect it once and pick what each team can call.