A professional workflow for AI agents to autonomously send physical letters and documents via PostalForm using secure machine payments.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install postalform-agent-mailing
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install postalform-agent-mailing using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is PostalForm Machine Order?
The PostalForm Machine Order skill provides a robust framework for AI agents to interact with physical mail infrastructure. By utilizing this skill within Openclaw Skills, developers can enable agents to programmatically prepare, validate, and dispatch physical documents through the PostalForm API. The system is built for high reliability, featuring a sophisticated idempotency model and automated payment settlement via the x402 protocol.
This skill bridges the gap between digital logic and physical delivery, allowing for autonomous mailing of invoices, notices, or letters. It emphasizes first-pass correctness by enforcing strict validation rules and providing defensive polling mechanisms to handle the nuances of physical mail processing and payment reconciliation.
PostalForm Machine Order Use Cases
- Sending automated physical invoices or billing statements triggered by software events.
- Dispatching legal notices or official documentation that requires physical delivery.
- Programmatic direct mail marketing based on customer lifecycle triggers.
- Autonomous document fulfillment workflows where agents handle both the content generation and the delivery logistics.
How PostalForm Machine Order Works
- Input Gathering: The agent collects buyer details, recipient addresses, and PDF document sources while selecting a specific address strategy.
- Payload Construction: A stable payload is generated with a unique request ID to ensure idempotency across retries.
- Preflight Validation: The agent calls the validation endpoint to confirm pricing, page counts, and payload accuracy before initiating payment.
- Order Creation & Settlement: The order is submitted to the PostalForm API, triggering an x402 payment request that the agent settles using a compatible wallet client.
- Status Polling: The agent monitors the order status through completion, ensuring the payment is reconciled and the document enters the mail stream.
PostalForm Machine Order Setup
To integrate this into your environment, ensure you have a compatible x402 wallet client like purl installed. You will need to configure your agent with secure access to your wallet keystore.
# Example of settling a payment using the purl CLI
purl pay --max-amount 5.00 --network [NETWORK] --password [SECURE_INPUT]
Ensure your agent is configured to omit empty optional fields like line2 to avoid validation errors during the submission process.
PostalForm Machine Order Data Schema & Taxonomy
The skill organizes data around the lifecycle of a physical mail order. Key data points include:
| Field | Type | Description |
|---|---|---|
| request_id | UUID | Unique identifier used to maintain idempotency. |
| buyer_email | String | Required email for routing payment receipts. |
| quote | Object | Contains page_count and price_usd for pre-payment verification. |
| current_step | String | Tracks the fulfillment status from submission to mailing. |
| order_complete_url | URL | The final reference URL provided once the order is fully processed. |
PostalForm Machine Order Advanced Features
- Multi-strategy address handling supporting both manual entry and Loqate ID resolution.
- Native support for the x402 machine payment protocol for non-custodial agent transactions.
- Defensive polling logic designed to handle transient server responses and webhook delays.
- Strict idempotency enforcement to prevent duplicate mailings and conflicting order states within Openclaw Skills.
SKILL.md
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