List the supported units and their metadata (abbreviation, measure, system, sing
List the supported units and their metadata (abbreviation, measure, system, singular/plural names), optionally filtered to a single measure — a discovery endpoint for choosing valid `from`/`to` values.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
604 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://unit.openverbs.com/v1/list
| Category | Everything else |
|---|---|
| Provider host | unit.openverbs.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 604 ms |
Example input (from the provider)
{
"body": {
"measure": "length"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"measure": {
"description": "Restrict to one measure, one of length, area, mass, volume, each, temperature, time, digital, partsPer, speed, pace, pressure, current, voltage, power, reactivePower, apparentPower, energy, reactiveEnergy, volumeFlowRate, illuminance, frequency, angle.",
"enum": [
"length",
"area",
"mass",
"volume",
"each",
"temperature",
"time",
"digital",
"partsPer",
"speed",
"pace",
"pressure",
"current",
"voltage",
"power",
"reactivePower",
"apparentPower",
"energy",
"reactiveEnergy",
"volumeFlowRate",
"illuminance",
"frequency",
"angle"
],
"type": "string"
}
},
"required": [],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}