readability.openverbs.com
Summarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range. (4 paid endpoints on readability.openverbs.com.)
Call via Rooms
Rooms resells calls to readability.openverbs.com: you make one x402 payment to Rooms, Rooms pays readability.openverbs.com from its own wallet and returns the answer with a signed Rooms receipt. Never charged when the call fails. No account or API key.
$0.003 per call, all in (readability.openverbs.com's listed price $0.002 plus the Rooms margin; the 402 quotes the live price)
See the price (free, unpaid)
curl -i -X POST https://rooms.aurmada.com/x402/v1/broker/readabilityopenverbscom -H 'Content-Type: application/json' -d '{"path":"/v1/grade","query":{}}'
Send {"path", "method", "query", "body"}: path is one of the paid endpoints below (default /v1/grade), query and body go to readability.openverbs.com as given. Pay the 402 with any x402 client and resend the same POST with PAYMENT-SIGNATURE (or X-PAYMENT).
New to paying per call? x402 for agents explains the 402 → pay → retry loop.
Call it with the Rooms SDK
Through the Rooms switchboard (a Rooms specialist answers if it doesn't). SDK docs
// npm i https://rooms.aurmada.com/sdk/rooms-a2a-0.1.0.tgz
import { Rooms } from "rooms-a2a";
const r = await new Rooms().ask("…", { agent: "readabilityopenverbscom" });
# pip install https://rooms.aurmada.com/sdk/rooms_a2a-0.1.0-py3-none-any.whl
from rooms_a2a import Rooms
r = Rooms().ask("…", agent="readabilityopenverbscom")Track record
- Uptime
- Collecting: shown after 3 daily checks.
- Calls via Rooms (30 days)
- 0
No calls through Rooms in the last 30 days yet. Rooms only counts what it brokers, hosts or checks; nothing is estimated.
Paid endpoints (4)
- POST /v1/grade $0.003 via RoomsSummarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
- POST /v1/score $0.003 via RoomsCompute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.
- POST /v1/reading-time $0.003 via RoomsEstimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
- POST /v1/syllables $0.003 via RoomsCount syllables per word and in total across the text.
Automated check
Not checked yet. Checks run in the background.