Automations and integrations

x402, Blinks, and Integrate P-Link with Make, IFTTT, Zapier using RSS feeds

Automations and integrations

P-Link offers an RSS feed of payments received to an email address, phone number or wallet.

RSS link format

https://p-link.io/RSS/[email]

💡 Example : https://p-link.io/RSS/[email protected] → list of payments received by this email.

Possible uses

• Integration with Make

• Automation with IFTTT

• Workflows Zapier

• Custom no-code applications

x402 Protocol – Automated HTTP Payments

This page explains how the x402 protocol works and how it is used in P-Link. Coinbase x402 makes it possible to introduce native payments at the HTTP level, allowing software agents (AI, scripts, services) to automatically pay for protected resources.

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What is the x402 protocol?

The x402 protocol is a modern extension of the HTTP status code 402 – Payment Required. Its goal is to make payments machine-readable, automated, and interoperable, without requiring any human-facing payment interface (forms, buttons, checkout pages, etc.).

With x402:

• a server can signal that a payment is required using HTTP,

• a compatible client can understand the payment request,

• the payment can be executed automatically,

• the requested resource becomes accessible immediately after payment.

👉 x402 is especially well suited for AI agents, paid APIs, and machine-to-machine payments.

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Core principle

The protocol relies on a simple, standardized HTTP flow:

1. Initial request The client requests a protected resource.

2. 402 – Payment Required response The server responds with:

   • HTTP status code 402,

   • payment instructions (amount, currency, recipient, reference).

3. Automatic payment A x402-compatible client:

   • parses the payment metadata,

   • executes the payment (e.g. blockchain, stablecoin),

   • stores a proof of payment.

4. Retry with payment proof The client retries the original request, including the payment proof.

5. Access granted The server verifies the payment and returns the requested resource.

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Why x402 in P-Link?

P-Link uses x402 to enable:

• automatic payment of HTTP resources,

• creation of smart payment links,

• payments initiated by AI agents via MCP,

• seamless integration with crypto wallets.

The goal is to make payments:

• programmatic,

• frictionless,

• fully automatable.

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Architecture in P-Link

x402 Server

The P-Link server can expose endpoints protected by x402.

When a resource requires payment:

• the server returns an HTTP 402 response,

• it includes all required payment metadata.

Typical protected resources include:

• premium APIs,

• downloadable content,

• paid actions or operations.

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x402 Client

P-Link provides a client that can:

• detect HTTP 402 responses,

• interpret payment instructions,

• execute the payment automatically,

• retry the request with proof of payment.

This client can be used:

• in scripts,

• in MCP tools,

• by AI agents.

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MCP (Model Context Protocol) Integration

All x402-related features in P-Link are exposed through MCP.

This allows an AI to:

• pay a x402-protected URL,

• generate a payment link,

• send funds,

• inspect wallet data,

simply by invoking MCP tools.

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x402 Tools Available in P-Link

pay_and_get_402_protected_url

Pays a x402-protected URL and automatically retrieves the resource.

Use case An AI agent accesses a paid API without human intervention.

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request_payment_link

Creates a customizable x402 payment link.

Use case Generate a link that can be paid by an external agent or service.

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send_money

Sends funds to:

• a wallet address,

• an email address,

• or a phone number.

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get_wallet_info

Returns wallet information:

• address,

• balance,

• network.

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get_wallet_history

Retrieves the transaction history of the wallet.

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Example x402 flow

1. An AI agent attempts to access a premium API.

2. The server responds with HTTP 402 and payment instructions.

3. The agent calls pay_and_get_402_protected_url.

4. The payment is executed automatically.

5. The API response is returned.

6. The agent continues its task uninterrupted.

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Benefits of the x402 protocol

• Native HTTP payment signaling

• Fully automated payments

• Designed for AI agents

• No user interface required

• Ideal for micro-payments and paid APIs

• MCP-compatible

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Limitations and considerations

• The client must be x402-compatible

• A properly configured wallet is required

• Network or blockchain fees may apply

• Payment reliability depends on the underlying payment network

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Conclusion

The x402 protocol is a core building block of P-Link. It transforms a simple HTTP response into an automated, machine-friendly payment mechanism, enabling truly autonomous services and AI-driven workflows.

To go further:

• explore the examples in the P-Link repository,

• inspect the exposed MCP tools,

• test a full x402 flow with an AI agent.

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