Discover / matrix.openverbs.com

Solve a linear system

■ Challenge detected

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 successful { solvable:false, solution:null }.

Listed price
$0.004
Challenge detected
10 of the last 10 checks
Median response
195 ms
Last checked
17 Oct, 09:26 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://matrix.openverbs.com/v1/solve
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
5 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://matrix.openverbs.com/v1

  • POST/transpose$0.004Transpose a matrix, swapping rows and columns. A ragged/empty matrix is a clean 400.
  • POST/determinant$0.004Compute 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/solve$0.004Solve 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 successful { solvable:false, solution:null }.
  • POST/inverse$0.004Invert 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/multiply$0.004Multiply 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.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 5 of 5 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/matrix.openverbs.com

Recent checks

30 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026
All 10 checks
When (UTC)ResultHTTPResponse
17 Oct, 09:26 UTCChallenge detected402445ms
16 Oct, 08:13 UTCChallenge detected402203ms
14 Oct, 23:56 UTCChallenge detected402177ms
13 Oct, 14:18 UTCChallenge detected402384ms
11 Oct, 12:57 UTCChallenge detected402171ms
10 Oct, 00:46 UTCChallenge detected402222ms
8 Oct, 21:32 UTCChallenge detected402222ms
7 Oct, 18:39 UTCChallenge detected402175ms
6 Oct, 16:01 UTCChallenge detected402187ms
30 Sept, 05:03 UTCChallenge detected402176ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 09:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Solve a linear system?

Its listed price is $0.004.

What payment terms does Solve a linear system advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Solve a linear system listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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