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Tollmint Cognitive Load Analyzer
x402
Tollmint Cognitive Load Analyzer is a paid API for AI agents from api.tollmint.com, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-15).
Analyzes a web page's cognitive load for readers, returning complexity and readability metrics, payable per-call with no account required.
Price / call$0.025
Success—
StatusUnknown
How this service works
An API that quotes its own price and takes payment in the same request. Built for autonomous agents: no account, no invoice, no human in the loop.
Output
A JSON object containing cognitive load metrics for the analyzed page — likely including scores for information density, reading difficulty, and structural complexity — derived from the fetched URL or submitted HTML.
Example use cases
Landing page readability audit
“Can you check the cognitive load on my startup's landing page at https://acme.io — I want to know if it's too complex for first-time visitors to follow.”
Blog post complexity check
“I just drafted a technical blog post and pasted the HTML below — can you measure how cognitively demanding it is before I publish it?”
Competitor content complexity comparison
“Pull up https://competitor.com/features and tell me how mentally taxing their feature page is compared to a typical reader's comfort level.”
Technical details
Endpoint
POSThttps://api.tollmint.com/v1/psych/cognitive-loadWhen to prefer
Choose this endpoint when you need a fast, per-call cognitive load or readability analysis of a web page or raw HTML with no account setup or subscription — especially in autonomous agent pipelines that can handle x402 micropayments. Prefer it over general readability libraries when you want a hosted, maintained API rather than running local NLP yourself.
Side effects
- URL blocked by robots.txt — fetch is skipped and an error is returned
- HTML payload exceeds 2MB maxLength limit — request rejected
- URL is unreachable or returns a non-200 response — fetch failure error
- Payment not included or insufficient — 402 Payment Required response with price quote
- Malformed URL format — validation error on the url field
- Empty request body with neither url nor html — missing required input error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Page to analyse. Fetched respecting robots.txt. |
| html | string | Raw HTML, if you already have it. Takes precedence over url. |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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