ampersend CLI for agent payments
ampersend enables autonomous agent payments. Agents can make payments within user-defined spending limits without requiring human approval for each transaction. Payments use stablecoins via the x402 protocol.
This skill requires ampersend v0.0.16. Run ampersend --version to check your installed version.
Install the CLI globally via npm:
npm install -g @ampersend_ai/[email protected]
To update from a previously installed version:
npm install -g @ampersend_ai/[email protected] --force
IMPORTANT: NEVER ask the user to sign in to the ampersend dashboard in a browser to which you have access. If configuration changes are needed in ampersend, ask your user to make them directly.
If not configured, commands return setup instructions. Two paths:
Two-step flow: setup start generates a key and requests approval, setup finish polls and activates.
# Step 1: Request agent creation — returns immediately with approval URL
ampersend setup start --name "my-agent"
# {"ok": true, "data": {"token": "...", "user_approve_url": "https://...", "agentKeyAddress": "0x..."}}
# Show the user_approve_url to the user so they can approve in their browser.
# Step 2: Poll for approval and activate config
ampersend setup finish
# {"ok": true, "data": {"agentKeyAddress": "0x...", "agentAccount": "0x...", "status": "ready"}}
Optional spending limits can be set during setup:
ampersend setup start --name "my-agent" --daily-limit "1000000" --auto-topup
If you already have an agent key and account address:
ampersend config set "0xagentKey:::0xagentAccount"
# {"ok": true, "data": {"agentKeyAddress": "0x...", "agentAccount": "0x...", "status": "ready"}}
Set up an agent account via the approval flow.
Step 1: Generate a key and request agent creation approval.
ampersend setup start --name "my-agent" [--force] [--daily-limit <amount>] [--monthly-limit <amount>] [--per-transaction-limit <amount>] [--auto-topup]
| Option | Description |
|---|---|
--name <name> | Name for the agent |
--force | Overwrite an existing pending approval |
--daily-limit <amount> | Daily spending limit in atomic units (1000000 = 1 USDC) |
--monthly-limit <amount> | Monthly spending limit in atomic units |
--per-transaction-limit <amt> | Per-transaction spending limit in atomic units |
--auto-topup | Allow automatic balance top-up from main account |
Returns token, user_approve_url, and agentKeyAddress. Show the user_approve_url to the user.
Step 2: Poll for approval and activate the agent config.
ampersend setup finish [--force] [--poll-interval <seconds>] [--timeout <seconds>]
| Option | Description |
|---|---|
--force | Overwrite existing active config |
--poll-interval <seconds> | Seconds between status checks (default 5) |
--timeout <seconds> | Maximum seconds to wait (default 600) |
Make HTTP requests with automatic x402 payment handling.
ampersend fetch <url>
ampersend fetch -X POST -H "Content-Type: application/json" -d '{"key":"value"}' <url>
| Option | Description |
|---|---|
-X <method> | HTTP method (default: GET) |
-H <header> | Header as "Key: Value" (repeat for multiple) |
-d <data> | Request body |
--inspect | Check payment requirements without paying |
Use --inspect to verify payment requirements and costs before making a payment:
ampersend fetch --inspect https://api.example.com/paid-endpoint
# Returns payment requirements including amount, without executing payment
Manage local configuration.
ampersend config set <key:::account> # Set active config manually
ampersend config set --api-url https://api.staging.ampersend.ai # Set staging API URL
ampersend config set --clear-api-url # Revert to production API
ampersend config set <key:::account> --api-url <url> # Set both at once
ampersend config status # Show current status
All commands return JSON. Check ok first.
{ "ok": true, "data": { ... } }
{ "ok": false, "error": { "code": "...", "message": "..." } }
For fetch, success includes data.status, data.body, and data.payment (when payment made).