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Mercury CLI – Run your banking* from the terminal

The official command-line interface for Mercury.

Manage your Mercury account from the terminal — cards, transactions, accounts, and more.

Install

curl

curl -sSf https://cli.mercury.com/install.sh | sh

Nix

Run without installing:

nix run github:MercuryTechnologies/mercury-cli -- accounts list

Install into your profile:

nix profile install github:MercuryTechnologies/mercury-cli

Requires Nix (or Lix) with flakes enabled.

Install with Go

To test or install the CLI locally, you need Go version 1.22 or later installed.

go install 'github.com/MercuryTechnologies/mercury-cli/cmd/mercury@latest'

Once you have run go install, the binary is placed in your Go bin directory:

• Default location: $HOME/go/bin (or $GOPATH/bin if GOPATH is set)
• Check your path: Run go env GOPATH to see the base directory

If commands aren't found after installation, add the Go bin directory to your PATH:

# Add to your shell profile (.zshrc, .bashrc, etc.)
export PATH="$PATH:$(go env GOPATH)/bin"

Quick start

mercury login
mercury accounts list
mercury payments create \
  --account-id acc_xxx \
  --recipient-id rcp_xxx \
  --amount 5000 \
  --payment-method ach \
  --idempotency-key $(uuidgen)

What you can do

• View accounts and balances (mercury accounts)
• Send payments and transfer funds between accounts (mercury payments)
• List, search, and update transactions (mercury transactions)
• Manage cards (mercury cards)
• Manage recipients, customers, and invoices (mercury recipients, mercury customers, mercury invoices)
• Download statements and SAFE documents (mercury statements, mercury safes)
• Manage treasury accounts (mercury treasury)
• Create and verify webhook endpoints (mercury webhooks)

Upgrading

mercury upgrade                  # latest
mercury upgrade --version 0.3.1  # pin a version
mercury upgrade --force          # reinstall current

Set MERCURY_INSTALL_DIR to override the install location.

When a newer release is available, mercury prints a one-line notice on stderr after the command runs (at most once per day). To disable it:

export MERCURY_NO_UPDATE_CHECK=1

Running Locally

After cloning the git repository for this project, you can use the scripts/run script to run the tool locally:

./scripts/run args...

Usage

The CLI follows a resource-based command structure:

mercury [resource] <command> [flags...]

mercury accounts get \
  --api-key 'My API Key' \
  --account-id REPLACE_ME

For details about specific commands, use the --help flag.

Environment variables

Environment variable	Description
MERCURY_API_KEY	Bearer token authentication for Mercury API.

Create and manage API tokens here: https://app.mercury.com/settings/tokens

Your Mercury API token should include the secret-token: prefix. Use it in the Authorization header:

Authorization: Bearer secret-token:mercury_<TOKEN>

If --api-key or MERCURY_API_KEY is set, the API token takes precedence over any OAuth session from mercury login. Run mercury status to see which credential is active.

Global flags

• --api-key - Bearer token for Mercury API
• --help - Show command line usage
• --debug - Enable debug logging (includes HTTP request/response details)
• --version, -v - Show the CLI version
• --base-url - Use a custom API backend URL
• --format - Change the output format (auto, explore, json, jsonl, pretty, raw, yaml)
• --format-error - Change the output format for errors (auto, explore, json, jsonl, pretty, raw, yaml)
• --transform - Transform the data output using GJSON syntax
• --transform-error - Transform the error output using GJSON syntax

Passing files as arguments

To pass files to your API, you can use the @myfile.ext syntax:

mercury <command> --arg @abe.jpg

Files can also be passed inside JSON or YAML blobs:

mercury <command> --arg '{image: "@abe.jpg"}'
# Equivalent:
mercury <command> <<YAML
arg:
  image: "@abe.jpg"
YAML

If you need to pass a string literal that begins with an @ sign, you can escape the @ sign to avoid accidentally passing a file.

mercury <command> --username '\@abe'

Explicit encoding

For JSON endpoints, the CLI tool does filetype sniffing to determine whether the file contents should be sent as a string literal (for plain text files) or as a base64-encoded string literal (for binary files). If you need to explicitly send the file as either plain text or base64-encoded data, you can use @file://myfile.txt (for string encoding) or @data://myfile.dat (for base64-encoding). Note that absolute paths will begin with @file:// or @data://, followed by a third / (for example, @file:///tmp/file.txt).

mercury <command> --arg @data://file.txt

---

*Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.