Neuroslop API

AI-slop detector and text humanizer over HTTP. Deterministic checks with no LLM cost, humanization in 20 languages, unit-based billing, instant key.

Get an API key Endpoints

Who it is for

Content platforms and CMS

Screen and QA text in the pipeline: flag machine slop before it goes live, humanize on demand.

Agencies and SEO tools

Check and humanize in bulk under your own product. One key, unit-based, no manual approval.

EdTech and writing tools

Score submissions and give writers a self-check with the exact markers, not a black-box percentage.

Why this API

Deterministic checks

/v1/check runs no LLM: the same text always returns the same score and markers. Fast, reproducible, cheap.

Detect and fix in one key

Check and humanization behind a single key. Score before and after comes back with the rewrite.

20 languages, instant key

Works across 20 languages. The key is issued on payment, with no waiting and no sales call.

MCP server

Connect neuroslop to your AI agent via MCP — it checks text for slop, humanizes it and strips hidden characters on its own. Works in Claude Code, Cursor, Codex, OpenClaw.

`neuroslop_check`

Liveliness score 0–100 and slop markers. Deterministic, no LLM call. 20 languages.

`neuroslop_humanize`

Rewrites machine text into natural writing, preserving meaning and length. Standard and Premium.

`neuroslop_clean`

Strips hidden characters: zero-width spaces, homoglyphs. Local, no key needed.

How to connect

Buy an API key (in your account or the bot — issued instantly).
Download neuroslop-mcp.mjs and add the config:

{
  "mcpServers": {
    "neuroslop": {
      "command": "node",
      "args": ["neuroslop-mcp.mjs"],
      "env": { "NEUROSLOP_API_KEY": "ns_your_key" }
    }
  }
}

Set NEUROSLOP_API_KEY, restart the client and verify that all three tools appear.

Connect to your agent (MCP) Get a key in your account

Authentication

Every request carries the key in a header: Authorization: Bearer <key> or X-API-Key: <key>.

Get a key two ways, no manual approval:

On the site — your account → API: pick a pack, pay by card, SBP or USDT — the key is issued instantly.
In the Telegram bot — @AITextChecker_bot → «🔌 API»: pay with Telegram Stars, the key arrives in the chat.

Pricing: units

A key has a monthly unit quota (resets each calendar month) plus a per-minute request limit. Calls spend units by weight:

Call	Weight	What it does
`POST /v1/check`	1	deterministic breakdown: score, verdict, markers
`POST /v1/rewrite` tier=flash	30 per 2,500 chars	humanization, Standard
`POST /v1/rewrite` tier=pro	100 per 7,500 chars	humanization, Premium: holds meaning and style deeper

Plan	Units / mo	Price	Requests / min

A 3,000-unit pack is 3,000 checks, or 100 Standard humanizations, or 30 Premium. Checks are weight 1, Standard 30 per 2,500 characters, Premium 100 per 7,500.

POST/v1/check

Body: { "text": "...", "lang": "en" } (lang optional). Up to 8,000 characters.

curl -X POST https://neuroslop.net/v1/check \
  -H "Authorization: Bearer ns_YOURKEY" \
  -H "Content-Type: application/json" \
  -d '{"text": "In today'"'"'s fast-paced world, it is important to note..."}'

Response:

{
  "score": 34,            // 0-100, lower = more slop
  "verdict": "AI slop",
  "lang": "en",
  "words": 120,
  "findingsCount": 9,
  "findings": [ { "id": "cliche", "category": "Cliché", "severity": "high", "count": 4 }, ... ],
  "remaining": 2999       // units left
}

POST/v1/rewrite

Body: { "text": "...", "tier": "flash" | "pro", "lang": "en" } Defaults to tier=flash. Up to 8,000 characters.

curl -X POST https://neuroslop.net/v1/rewrite \
  -H "Authorization: Bearer ns_YOURKEY" \
  -H "Idempotency-Key: 018f-request-unique-id" \
  -H "Content-Type: application/json" \
  -d '{"text": "...", "tier": "pro"}'

Response:

{
  "text": "rewritten text",
  "tier": "pro",
  "scoreBefore": 34,
  "scoreAfter": 96,
  "remaining": 2870
}

Units are spent only on a successful rewrite. A model error returns 502 with no charge.

For safe retries, send a unique Idempotency-Key with each rewrite. A repeated key with the same request replays the original response without another model call or charge; a changed request returns 409. This opt-in keeps an AES-GCM-encrypted response in the live replay cache for up to 24 hours. Encrypted operational backups may retain it for up to 14 days. Without this header no response is cached.

GET/v1/balance

Key quota left: { plan, quota, used, remaining, resetMonth, perMinute }.

GET/v1/health

Service liveness, no key needed: { "ok": true, "llm": true }.

Errors

Code	error	Meaning
401	no_api_key / unknown_key / disabled	missing or invalid key
429	rate_limited / quota	per-minute limit or monthly quota
409	idempotency_conflict / idempotency_in_progress	request key reused with another body, or the first request is still running
400	text_required / too_long / bad_json	malformed request
502/503	rewrite_failed / llm_unavailable	LLM layer down, units not spent

Get an API key