$0.002
per call · USD Coin on Base
Turns SenML (JSON or CBOR) and LwM2M TLV into one record shape: resolved name, unit, absolute timestamp, typed value. Optionally puts every series on a shared time axis with a chosen interval and fill rule (last value, bucket mean, linear). Works only on the payload you pass: no device is contacted, nothing is stored, the same request returns the same bytes. TLV carries no type on the wire; unmapped resource ids come back as opaque base64 with a warning instead of a guess.
Endpoint
POST https://tools.halowerk.com/v1/telemetry/normalize1
Calls / 30d
1
Unique payers / 30d
Aug 19
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://tools.halowerk.com/v1/telemetry/normalize", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"align": true,
"align_method": "last",
"format": "senml_json",
"interval_s": 60,
"payload": [
{
"bn": "urn:dev:ow:10e2073a:",
"bt": 1786000000,
"bu": "Cel",
"n": "temp",
"v": 21.3
},
{
"n": "temp",
"t": 60,
"v": 21.9
},
{
"n": "hum",
"t": 60,
"u": "%RH",
"v": 48
}
]
}),
});
const data = await res.json();curl -X POST \
"https://tools.halowerk.com/v1/telemetry/normalize" \
-H "Content-Type: application/json" \
-d '{"align":true,"align_method":"last","format":"senml_json","interval_s":60,"payload":[{"bn":"urn:dev:ow:10e2073a:","bt":1786000000,"bu":"Cel","n":"temp","v":21.3},{"n":"temp","t":60,"v":21.9},{"n":"hum","t":60,"u":"%RH","v":48}]}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"align_note": null,
"aligned": {
"end_unix_s": 1786000060,
"interval_s": 60,
"method": "last",
"point_count": 2,
"points": [
{
"time": "2026-08-06T07:06:40.000Z",
"time_unix_s": 1786000000,
"values": {
"urn:dev:ow:10e2073a:hum": null,
"urn:dev:ow:10e2073a:temp": 21.3
}
},
{
"time": "2026-08-06T07:07:40.000Z",
"time_unix_s": 1786000060,
"values": {
"urn:dev:ow:10e2073a:hum": 48,
"urn:dev:ow:10e2073a:temp": 21.9
}
}
],
"series_names": [
"urn:dev:ow:10e2073a:hum",
"urn:dev:ow:10e2073a:temp"
],
"start_unix_s": 1786000000,
"tolerance_s": 0,
"values_filled": 3,
"values_missing": 1
},
"format": "senml_json",
"record_count": 3,
"records": [
{
"name": "urn:dev:ow:10e2073a:temp",
"time": "2026-08-06T07:06:40.000Z",
"time_unix_s": 1786000000,
"unit": "Cel",
"value": 21.3,
"value_type": "number"
},
{
"name": "urn:dev:ow:10e2073a:temp",
"time": "2026-08-06T07:07:40.000Z",
"time_unix_s": 1786000060,
"unit": "Cel",
"value": 21.9,
"value_type": "number"
},
{
"name": "urn:dev:ow:10e2073a:hum",
"time": "2026-08-06T07:07:40.000Z",
"time_unix_s": 1786000060,
"unit": "%RH",
"value": 48,
"value_type": "number"
}
],
"series": [
{
"count": 1,
"first_time_unix_s": 1786000060,
"last_time_unix_s": 1786000060,
"max": 48,
"mean": 48,
"min": 48,
"name": "urn:dev:ow:10e2073a:hum",
"numeric_count": 1,
"unit": "%RH"
},
{
"count": 2,
"first_time_unix_s": 1786000000,
"last_time_unix_s": 1786000060,
"max": 21.9,
"mean": 21.6,
"min": 21.3,
"name": "urn:dev:ow:10e2073a:temp",
"numeric_count": 2,
"unit": "Cel"
}
],
"stateless": true,
"warnings": []
}Payment details
0x2880edfff13100677bf97a3cbdf3bc34771c4e5eUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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