# API Client

> Use this tool when you need to test and explore REST APIs, or debug HTTP requests through natural language interactions. It solves problems such as validating API changes, testing localhost endpoints, and optimizing token usage, by providing single and batch HTTP request capabilities with customizable output. Ideal for local development workflows, it accepts natural language inputs and returns status codes and response bodies as output.

Canonical page: https://skillsregistry.net/skills/etaaa-api-client  
JSON: https://api.skillsregistry.net/v1/skills/etaaa-api-client

## Description

A specialized server designed for REST API testing and exploration, functioning as a "Postman for LLMs." Built with FastMCP and httpx, it provides two core tools: single HTTP requests and efficient batch requests that minimize token usage by returning only status codes and response bodies by default. Optimized for local development workflows, allowing direct testing of localhost endpoints during development, API change validation, and HTTP debugging through natural language interactions.

## Trust

- **Trust score (0–1):** 0.65
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-02

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/etaaa-api-client)
- **Repository:** <https://github.com/nattergabriel/mcp-api-client>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "etaaa-api-client"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/etaaa-api-client` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/etaaa-api-client/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt