7Block Labs

by Jay

2025-08-02

10 min read

Content Monetization with HTTP Payments: Practical x402 for Publishers

Short description: HTTP 402 “Payment Required” finally works on the open web. This guide shows publishers exactly how to ship x402 pay-per-article, pay-per-crawl, and metered content with concrete headers, code patterns, and pricing tactics

by Jay

2025-07-30

11 min read

Creating API for Web3 Dapps: REST, GraphQL, and JSON-RPC Compared

Concise summary: For modern Web3 products, you’ll rarely pick a single API pattern. The winning architecture combines JSON-RPC for writes and low-level reads, GraphQL for rich query joins and time‑travel reads, and REST from indexers for cr

by Jay

2025-07-30

11 min read

Seamless Blockchain API Development: Design Patterns and Testing Strategies

Decision‑makers: this field guide shows how to ship reliable, scalable blockchain APIs your product can trust. We translate fast‑moving protocol changes (EIP‑4844 blobs, ERC‑4337, EIP‑7702; Solana priority fees and SWQoS) into concrete patt

by Jay

2025-07-30

11 min read

Streamlining API Development for Seamless Blockchain Integration

> Summary: The fastest way to de‑risk blockchain adoption is to treat chain connectivity as an API problem. This guide shows how decision‑makers can modernize their API stack for Ethereum, Solana, and cross‑chain systems in 2025—covering ne

by Jay

2025-07-28

12 min read

Blockchain API Tutorial for Product Teams: From cURL to Production SDKs

A practical, decision‑maker’s guide to moving from raw JSON‑RPC calls to reliable, observable, multi‑chain SDKs that ship. You’ll learn the exact requests to prototype with cURL, then how to harden them for production across Ethereum (incl.

by Jay

2025-07-28

12 min read

API in Blockchain Architectures: When to Use Gateways vs Direct Node Access

Decision-makers keep asking us the same question: should we call a hosted RPC gateway (Infura, Alchemy, QuickNode, Chainstack, Cloudflare, etc.) or run and expose our own nodes? This guide gives you a concrete, up-to-date decision framework

by Jay

2025-07-26

12 min read

x402 + Stablecoins: Operational Playbook for Refunds, Disputes, and Chargebacks (No, Really)

--- description: A concrete, operations-first playbook for handling refunds, disputes, and “chargebacks” when you accept x402 stablecoin payments—covering policy design, escrow patterns, facilitator choices, evidence collection, and org wor

by Jay

2025-07-26

11 min read

Building Agentic Commerce Rails: x402 Patterns for Machine-to-Machine Payments

Short summary: x402 turns the once-unused HTTP 402 status code into an internet‑native payment rail that AI agents and services can speak over plain HTTP. This guide distills concrete x402 patterns, code-level details, and emerging best pra

by Jay

2025-07-25

15 min read

Verifiable Data Vendor Selection Guide: How to Evaluate Services and SLAs

> Summary: Choosing a verifiable data vendor isn’t like buying a typical API. You’re buying cryptographic assurances, operational guarantees, and incident response. This guide gives decision‑makers a concrete evaluation framework (with chec

7BlockLabs

Full-stack blockchain product studio: DeFi, dApps, audits, integrations.

7Block Labs is a trading name of JAYANTH TECHNOLOGIES LIMITED.

Registered in England and Wales (Company No. 16589283).

Registered Office address: Office 13536, 182-184 High Street North, East Ham, London, E6 2JA.

© 2025 7BlockLabs. All rights reserved.