Skill: Content quality report

Bundled execution of the Content quality report workflow - Readability scores, keyword density, and a URL-ready slug from a block of text - a one-pass content-quality check for writers and SEO tools. One x402 payment runs 3 underlying tools (readability-score, word-frequency, slug-generate); partial-success per step.

Input

Field	Type	Description
text *	string	The content to analyze (article body, blog post, email copy, etc.)
title	string	Title or headline for slug generation (optional - uses first sentence if omitted)

Example output

{
  "pack": "content-quality",
  "args": {
    "text": "Artificial intelligence is transforming the way businesses operate. Companies across every industry are adopting AI tools to automate repetitive tasks, analyze large datasets, and make better decisions. The impact of AI on productivity has been significant, with studies showing up to 40% improvement in certain workflows.",
    "title": "How AI Is Transforming Business Operations"
  },
  "steps": [
    {
      "slug": "readability-score",
      "ok": true,
      "result": {}
    },
    {
      "slug": "word-frequency",
      "ok": true,
      "result": {}
    },
    {
      "slug": "slug-generate",
      "ok": true,
      "result": {}
    }
  ],
  "summary": "3/3 steps succeeded"
}

Try it - see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/skill/content-quality \
  -H "Content-Type: application/json" \
  -d '{"text":"Artificial intelligence is transforming the way businesses operate. Companies across every industry are adopting AI tools to automate repetitive tasks, analyze large datasets, and make better decisions. The impact of AI on productivity has been significant, with studies showing up to 40% improvement in certain workflows.","title":"How AI Is Transforming Business Operations"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/skill/content-quality", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "text": "Artificial intelligence is transforming the way businesses operate. Companies across every industry are adopting AI tools to automate repetitive tasks, analyze large datasets, and make better decisions. The impact of AI on productivity has been significant, with studies showing up to 40% improvement in certain workflows.",
    "title": "How AI Is Transforming Business Operations"
  }),
});

No wallet? Pay with compute

This is a pure-CPU tool, so an agent without a wallet can pay with proof-of-work instead of USDC: fetch a challenge, solve the sha256 puzzle (16 leading zero bits - a fraction of a second of CPU, no money, no AI tokens), and resend with the X-Pow-Solution header.

import { createHash } from "node:crypto";
const lz = (b) => { let t = 0; for (const x of b) { if (!x) { t += 8; continue; } t += Math.clz32(x) - 24; break; } return t; };
const c = await (await fetch("https://agent402.tools/api/pow/challenge?slug=skill-content-quality")).json();
let n = 0;
while (lz(createHash("sha256").update(c.challenge + ":" + n).digest()) < c.difficulty) n++;
await fetch("https://agent402.tools/api/skill/content-quality", { method: "POST", headers: { "X-Pow-Solution": c.token + ":" + n, "Content-Type": "application/json" }, body: JSON.stringify({"text":"Artificial intelligence is transforming the way businesses operate. Companies across every industry are adopting AI tools to automate repetitive tasks, analyze large datasets, and make better decisions. The impact of AI on productivity has been significant, with studies showing up to 40% improvement in certain workflows.","title":"How AI Is Transforming Business Operations"}) });

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