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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed

matrix.openverbs.com

Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial pivoting. A non-square A or a b of the wrong length is a clean 400. A singular system is NOT an error — it returns a succe… (5 paid endpoints on matrix.openverbs.com.)

Call via Rooms

Rooms resells calls to matrix.openverbs.com: you make one x402 payment to Rooms, Rooms pays matrix.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.

$0.005 per call, all in (matrix.openverbs.com's listed price $0.004 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/matrixopenverbscom -H 'Content-Type: application/json' -d '{"path":"/v1/solve","query":{}}'

Send {"path", "method", "query", "body"}: path is one of the paid endpoints below (default /v1/solve), query and body go to matrix.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: "matrixopenverbscom" });
# 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="matrixopenverbscom")

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 (5)

  • POST /v1/solve $0.005 via Rooms
    Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial pivoting. A non-square A or a b of the wrong length is a clean 400. A singular system is NOT an error — it returns a succe…
  • POST /v1/determinant $0.005 via Rooms
    Compute the determinant of a square matrix via Gaussian elimination with partial pivoting. A non-square, ragged or empty matrix is a clean 400; a singular matrix simply returns 0.
  • POST /v1/inverse $0.005 via Rooms
    Invert a square matrix via Gauss-Jordan elimination. A non-square, ragged or empty matrix is a clean 400. A singular (non-invertible) matrix is NOT an error — it returns a successful { invertible:false, inverse:null }.
  • POST /v1/multiply $0.005 via Rooms
    Multiply two matrices A·B. The inner dimensions must agree (columns of A equal rows of B); a mismatch or a ragged/empty matrix is a clean 400.
  • POST /v1/transpose $0.005 via Rooms
    Transpose a matrix, swapping rows and columns. A ragged/empty matrix is a clean 400.

Automated check

Not checked yet. Checks run in the background.