OpenAICodex

Connect Codex to Mercury

Run Codex as a hosted agent in NoClick with Mercury wired into its tools handle. It can use Mercury directly while it works. No glue code, nothing to install. Click below to open a ready-to-run agent and connect your account.
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Opens a workflow with 25 tools ready to use.

Set up in minutes

The open button drops you into a guided setup. It asks exactly this, nothing else:
  1. Choose where it runs

    On your computer through your own Codex, or hosted in the cloud. The rest of setup adapts to your choice:

  2. Pick what it can do in Mercury

    A preset of real Mercury operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.

  3. Connect Mercury

    One sign-in. The agent acts through your account, scoped to the operations you picked.

  4. Add your personal MCP link

    The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Codex first calls in. Codex connects when a session starts — run codex, or restart a running one (in the Codex app, Restart).

    Run this in your terminal. The Codex app shares its config, so it gets the server too

    $codex mcp add noclick --url https://mcp.noclick.app/s/<your-link>

    <your-link> is your personal server URL — setup mints it for you.

Tools Codex gets

Pick the operations you want and each becomes a tool the agent can call directly while it works.

Mercury

25 tools
List Accounts

Retrieve a paginated list of accounts. Supports cursor-based pagination with limit, order, start_after, and end_before query parameters.

Get Account

Get account by ID

List Transactions

Retrieve a paginated list of all transactions across all accounts. Supports advanced filtering by date ranges, status, categories, and cursor-based pagination.

List Account Transactions

Retrieve a paginated list of transactions for a specific account. Supports filtering by date range, status, and search terms.

Get Transaction

Retrieve a single transaction by its ID. Returns full transaction details including attachments, check images, and related metadata.

Update Transaction

Update the note and/or category of an existing transaction. Use null values to clear existing data.

List Recipients

Retrieve a paginated list of all recipients. Use cursor parameters (start_after, end_before) for pagination.

Get Recipient

Retrieve details of a specific recipient by ID

Create Recipient

Create a new recipient for making payments

Update Recipient

Update an existing recipient's information

Delete Recipient

Delete a specific recipient by ID. Fails if the recipient is blocked by scheduled payments, pending approvals, or active ACH authorizations.

Send Money

Send money from an account to a recipient. Creates a transaction that will be processed immediately or may require approval.

Create Transfer

Transfer funds between two accounts within the same organization. Supports transfers between depository accounts (checking/savings), from a depository account to a treasury/investment account, and from a treasury/investment account to a depository account. Creates paired debit and credit transactions.

List Customers

Retrieve a paginated list of customers. Supports cursor-based pagination with limit, order, start_after, and end_before query parameters.

Get Customer

Retrieve details of a specific customer by their ID

Create Customer

Create a new customer for the organization

Update Customer

Update an existing customer

Delete Customer

Delete a customer. This action cannot be undone.

List Invoices

Retrieve a paginated list of invoices. Supports cursor-based pagination with limit, order, start_after, and end_before query parameters.

Get Invoice

Retrieve details of an invoice by its ID

Create Invoice

Create a new invoice for the organization

Update Invoice

Update an existing invoice

Cancel Invoice

Cancel an invoice. This action cannot be undone.

List Account Statements

Retrieve a paginated list of monthly statements for a depository account. For IO credit accounts, use getCreditAccountStatements. Supports cursor-based pagination with limit, order, start_after, and end_before query parameters, as well as date range filtering with start and end parameters.

Get Organization

Retrieve information about your organization including EIN, legal business name, and DBAs.

About Codex

Codex is OpenAI's command-line coding agent. NoClick runs it as a hosted agent and lets you connect your apps to it as tools, turning it from a coding assistant into an operator that can act across your systems. Connect an integration to the agent and Codex can query, create, and update records in that app directly. You keep the Codex experience and give it real reach into the tools your team already uses.
Fast, capable code generation and editing
Good at well-scoped, concrete tasks
Strong at API and data manipulation
Familiar to teams already on OpenAI tooling

Frequently asked questions

More ways to connect

Open your Codex agent in one click.

NoClick runs Codex for you with Mercury wired in as tools. Connect your account and run.