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Sindri Linear Equation Solver
x402
Sindri Linear Equation Solver is a paid API for AI agents from ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Solves a system of linear equations (Ax = b) using LU decomposition for up to 20x20 systems, with a near-singularity guard.
Price / call$0.01
Success—
StatusUnknown
How this service works
Solves a system of linear equations (Ax = b) using the ml-matrix library's LU decomposition (LuDecomposition), with a near-singularity guard beyond the library's exact-singular check, for systems up to 20x20.
Output
Returns the solution vector x satisfying Ax = b, computed via LU decomposition. If the matrix is singular or near-singular, an error is returned instead of an unreliable result.
Example use cases
Circuit network current solver
“I have a set of 3 simultaneous equations from a resistor network — coefficients [[4,-1,0],[-1,3,-1],[0,-1,2]] and constants [5,10,7]. Solve for the currents.”
Structural load balancing
“I need to solve a 4x4 system of equations for beam load distribution. The coefficient matrix is [[2,1,0,0],[1,3,1,0],[0,1,3,1],[0,0,1,2]] and the constants vector is [10,20,20,10].”
Economic supply-demand equilibrium
“Solve this 2x2 linear system for market equilibrium prices — coefficients [[3,-1],[-2,4]] and constants [9,12].”
Technical details
Endpoint
POSThttps://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/solveLinearEquation?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, reliable numerical solution to a small-to-medium system of linear equations (up to 20x20) without setting up a local math library. It's ideal for one-off computational tasks in agentic workflows, offering a near-singularity guard that makes it safer than naive Gaussian elimination. Prefer it over general-purpose compute if you just need Ax = b solved quickly at low cost.
Side effects
- Singular or near-singular matrix detected — returns error rather than an unstable solution
- Matrix not square (n x n required) — validation error
- Dimension mismatch between coefficients matrix and constants vector
- System size exceeds 20x20 limit
- Malformed or non-numeric input values
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| constants | array | Array of n constants (the right-hand side of each equation). |
| coefficients | array | Square 2D array of coefficients (n x n), up to 20x20. |
Tags
x402
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