POST /api/zeq/acoustic

Helmholtz acoustics — -p'' = k^2 p, open/closed ends (finite-volume + half-cell mass, Sturm bisection).

Method	POST
Path	/api/zeq/acoustic
Feature area	Zeq core & solvers
Tag	Solvers
Auth	machine key — Authorization: Bearer $ZEQ_KEY
Tier	authenticated (machine-control)

Solver

Summary	Helmholtz acoustics — -p'' = k^2 p, open/closed ends (finite-volume + half-cell mass, Sturm bisection).
Domain	Acoustics
Numerical Method	FV Helmholtz eigensolver
Operator Chain	KO42, WM1
Unit	Hz

See all sealed solvers.

Parameters

This operation publishes no path, query or header parameters.

Request body

Required. Content type: application/json.

Field	Type	Required	Description
operators	array<string>	no	Operator IDs to run. KO42 sets the metric frame, e.g. ["KO42","GR37","NM19"].
inputs	object<string, number>	no	Named numeric inputs the operators consume (mass, r, v, ...).
consts	object<string, number>	no	Optional constant overrides (t, alpha, f_H, ...).
domain	string	no	Optional domain hint (used by /compute and /auto).
query	string	no	Natural-language problem statement (used by /auto).

Responses

Status	Meaning
200	Sealed result envelope — value, unit, operatorChain, masterEquation, HMAC zeqProof.
401	Missing or invalid credentials
402	Insufficient compute credit

401 body

Field	Type	Required	Description
ok	boolean — one of false	yes	—
error	string	no	Human-readable message.
code	string	no	Stable machine-readable code, e.g. ADMIN_REQUIRED, INVALID_ZID, ZID_NOT_LINKED.

Call it

curl -sS -X POST https://zeq.me/api/zeq/acoustic \
  -H "Authorization: Bearer $ZEQ_KEY" \
  -H "Content-Type: application/json" \
  -d '{
         "operators": [
           "KO42"
         ],
         "inputs": {
           "mass": 70,
           "r": 1
         },
         "consts": {
           "t": 1
         },
         "domain": "Acoustics",
         "query": "speed of sound in air at 20 C"
       }'

Needs a machine key. Mint one: curl -sS -X POST https://zeq.me/api/demo-key/mint, then spin up your machine.

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