---
name: www.paylog.dev
description: www.paylog.dev hosts a single skill that returns a blog article documenting a developer's firsthand experience implementing x402 payments on Base mainnet. The article covers 8 specific bugs and their fixes, touching on CDP facilitator configuration, EIP-3009 semantics, CAIP-2 identifiers, JWT signing, and retry logic.
host: www.paylog.dev
---

# www.paylog.dev

paylog.dev is a developer blog that exposes one monetized article via x402. It serves agents or users seeking concrete, code-level implementation guidance for x402 on Base mainnet, particularly around known edge cases with the CDP facilitator stack. It is not an official protocol source and does not offer real-time data, tooling, or multi-resource coverage.

## When to use this host

Use this host when an agent needs practical, code-level guidance on implementing x402 payments on Base mainnet and wants to learn from documented real-world bugs and fixes. Do not use it for official x402 protocol specifications — consult the x402 protocol repository or official docs instead. Do not use it for testnet implementations, non-Base chains, or any real-time data needs. If the agent needs interactive tooling, SDKs, or canonical references, this host is not appropriate.

## Capabilities

### x402 Implementation Reference

Retrieves a full-length developer article documenting real bugs and fixes encountered during an x402 integration on Base mainnet, covering facilitator config, EIP-3009, CAIP-2, JWT auth, and retry pitfalls.

- **`fetch-x402-implementation-article`** — Returns a full blog post documenting 8 concrete bugs and fixes encountered while implementing x402 payments on Base, covering facilitator config, EIP-3009 semantics, CAIP-2 format, JWT method signing, and retry pitfalls.

## Skill reference

### `fetch-x402-implementation-article`

**x402 Implementation Article** — Returns a full blog post documenting 8 concrete bugs and fixes encountered while implementing x402 payments on Base, covering facilitator config, EIP-3009 semantics, CAIP-2 format, JWT method signing, and retry pitfalls.

*Use when:* Use when an agent or user needs detailed, code-level guidance on implementing x402 on Base mainnet, including known edge cases with the CDP facilitator, EIP-3009 transfer authorization, CAIP-2 network identifiers, and JWT authentication.

*Not for:* Do not use for real-time x402 protocol specifications or official documentation; this is a single developer's experience article, not a canonical reference. Not suitable for testnet-only or non-Base x402 implementations.

**Returns:** Returns a JSON object with slug, title, date, and full HTML content of an article describing 8 x402 implementation bugs and fixes on Base mainnet.

**Example:** `GET https://www.paylog.dev/api/v1/content/x402-implementation`

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