---
title: "API. Blog articles"
description: "5 articles tagged “API”."
canonical: "https://studiomeyer.io/en/blog/tag/api"
language: en
markdown_versions: ["https://studiomeyer.io/de/blog/tag/api.md", "https://studiomeyer.io/en/blog/tag/api.md", "https://studiomeyer.io/es/blog/tag/api.md"]
publisher: "StudioMeyer, https://studiomeyer.io (llms.txt: https://studiomeyer.io/llms.txt)"
---

[All articles](https://studiomeyer.io/en/blog)

Tag

# API

5 articles tagged “API”.

![Ahrefs MCP Server: Setup for Claude, Codex and the Rest](https://studiomeyer.io/blog/ahrefs-mcp-server-setup.webp)

Working with AI

August 3, 202612 min

## Ahrefs MCP Server: Setup for Claude, Codex and the Rest

There are two Ahrefs MCP servers and two kinds of key, and the wrong pairing fails silently. Here is the wiring per client, plus the traps that cost real money.

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https://studiomeyer.io/en/blog/ahrefs-mcp-server-setup

![Ahrefs API Units: What 1,102 Calls Actually Cost](https://studiomeyer.io/blog/ahrefs-api-units-cost.webp)

Getting Found Online

August 3, 20269 min

## Ahrefs API Units: What 1,102 Calls Actually Cost

The unit cost of 1,102 calls, logged one by one: three tools ate 78 percent of the budget, while the flat-rate surfaces returned about a hundred times more rows per unit. Plus six rules.

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https://studiomeyer.io/en/blog/ahrefs-api-units-cost

![Claude in 2026: Three Models, Four Surfaces, Real Prices](https://studiomeyer.io/blog/claude-guide-2026.webp)

Working with AI

June 6, 202614 min

## Claude in 2026: Three Models, Four Surfaces, Real Prices

Opus, Sonnet and Haiku side by side with price, context window and benchmark. Then claude.ai, Claude Code, the API and the clouds: which to reach for when, plus the three traps that actually bite.

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https://studiomeyer.io/en/blog/claude-guide-2026

![agents.json Explained: Make Your Site Readable for ChatGPT](https://studiomeyer.io/blog/agents-json-erklaert.webp)

AI Connectors

February 15, 202611 min

## agents.json Explained: Make Your Site Readable for ChatGPT

From robots.txt to sitemap.xml to agents.json: websites have always gained new discovery files. A technical deep-dive with a real-world example.

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https://studiomeyer.io/en/blog/agents-json-explained

![A2A Protocol Explained: How AI Agents Talk to Your Website](https://studiomeyer.io/blog/a2a-protocol-erklaert.webp)

AI Connectors

February 15, 202610 min

## A2A Protocol Explained: How AI Agents Talk to Your Website

What A2A is, how it works, and how your website exposes an interface an AI agent can call. JSON-RPC 2.0, agent-card.json, code example.

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https://studiomeyer.io/en/blog/a2a-protocol-explained

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Every page of this site as Markdown: [sitemap](https://studiomeyer.io/sitemap.md). Curated entry point: [llms.txt](https://studiomeyer.io/llms.txt).