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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimed

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 Rooms
    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.
  • POST /v1/score $0.003 via Rooms
    Compute 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 Rooms
    Estimate 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 Rooms
    Count syllables per word and in total across the text.

Automated check

Not checked yet. Checks run in the background.