Live · 9 EVU · UTC

Swiss Dynamic Electricity Tariffs — real time

One normalized API for all Swiss dynamic electricity tariffs. Updated daily, 96 × 15-min slots per day, three price components per slot.

9Active EVU

96Slots / day

3Price components

UTCNormalized timezone

CHFCurrency / kWh

Supported providers

CKW EKZ AEM Groupe E Primeo AVAG ELAG AIL

EGA soon

What we offer

Everything you need to integrate Swiss dynamic tariffs

Real-time prices

Energy, grid and residual prices updated daily. 96 × 15-min UTC slots per tariff.

Normalized API

Single REST API for all Swiss EVU. Same format, same schema, regardless of provider.

9 providers, one call

CKW, EKZ, AEM, Groupe E, Primeo, AVAG, ELAG and more — all in a single endpoint.

Secure API key access

Personal API key with rate limiting, single-session enforcement and plan-based access control.

Smart analytics

Daily summary, monthly stats, Smart view with best/worst hours and interactive dashboard.

Multilingual dashboard

Full interface in Italian, German, French and English. Interactive map of Swiss municipalities.

Pricing

Simple, transparent plans

Free

CHF 0/ month

For personal use and exploration. Pick one tariff and get full access to it.

1 tariff of your choice (permanent)
Today's prices — all 96 slots
Smart view for your tariff
Interactive map (your zone)
100 API requests / day
1 API key
All tariffs simultaneously
Historical data (unlimited)
Monthly summary & metrics

Recommended

Pro

CHF 190/ year

For companies, aggregators and home-automation systems.

All 9+ tariffs simultaneously
Full historical data
Smart view — all tariffs
Interactive map — all zones
1 000 API requests / day
Up to 5 API keys
Monthly summary & /metrics
Priority support

Enterprise

From CHF 300/ year

For companies whose teams share one account across many API keys. Pay only for the keys and requests you choose.

Everything in Pro
As many keys as you need — one per employee
Requests/day sized to your usage
Per-key usage tracking
Shared account-level limit
Company invoicing with VAT
Pay only for what you configure

Valid VAT number required. Subject to approval.

Seleziona tariffa

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Upgrade to see slot details Log in or upgrade to Pro to inspect individual 15-min price slots.

Coverage map

Dynamic tariff providers by Swiss municipality · source: ElCom 2026

Loading municipality boundaries…

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Grey municipalities have no dynamic tariff available in 2026. 457 out of 2,148 Swiss municipalities covered. Source: ElCom open data.

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API Access

Don't have an account? Request access

Request API Access

Free tier: 500 requests/day.

Full name

Company (optional)

VAT (optional)

Country

← Back

API Reference

GET /api/v1/tariffs

Authentication API key required

Plan Free & Pro

Parameters

No parameters — returns all tariffs in a single call.

Response fields

Field	Type	Description
tariff_id	string	Unique slug identifier. Example `ckw_home_dynamic`
tariff_name	string	Human-readable name. Example `CKW Dynamic Home`
provider_name	string	Swiss energy utility (EVU). Example `CKW`
zip_ranges	integer[]	Swiss postal codes served.
daily_update_time_utc	string	Daily price refresh time (UTC). Example `17:30`
datetime_available_from_utc	datetime	First UTC datetime with data.
valid_until_utc	datetime nullable	`null` if currently active.
time_resolution_minutes	integer	Slot resolution in minutes. Example `15`
sgr_compliant	boolean	SmartGridready (SGr) certified.

Note

Try it out

GET /api/v1/tariffs ↗

Code sample

Response

[
  {
    "tariff_id": "ckw_home_dynamic",
    "tariff_name": "CKW Dynamic Home",
    "provider_name": "CKW",
    "zip_ranges": [6000, 6002, 6003],
    "daily_update_time_utc": "11:05",
    "datetime_available_from_utc": "2026-01-01T00:00:00+00:00",
    "valid_until_utc": null,
    "time_resolution_minutes": 15,
    "sgr_compliant": true
  }
]

GET /api/v1/prices

Authentication API key required

Plan Free & Pro

Query parameters

Field	Type	Description
tariff_id	string	Tariff identifier.
zip_code	integer
start_timerequired	datetime	Start of window in UTC. Example `2026-08-27T00:00:00Z`
end_time	datetime	End of window in UTC. Defaults to start_time + 24 h.

Response fields

Field	Type	Description
tariff_id	string	Tariff slug identifier. Example `ckw_home_dynamic`
date	string	Swiss local date of the data. Example `2026-08-27`
start_time	datetime	UTC start of the actual day window returned.
end_time	datetime	UTC end of the actual day window returned.
energy_price_utc	object[]	Energy component (CHF/kWh).
grid_price_utc	object[]	Grid/network component (CHF/kWh).
residual_price_utc	object[]	Residual charges (CHF/kWh).
slot_count	integer	Number of 15-min slots returned (96 = full day).

Identifying the tariff

Timezone & DST

Plan behaviour

Try it out

GET /api/v1/prices?tariff_id=...&start_time=2026-08-27T00:00:00Z ↗

Lookup by

tariff_id

date

Code sample

Response

{
  "tariff_id": "ckw_home_dynamic",
  "date": "2026-08-27",
  "start_time": "2026-08-27T23:00:00+00:00",
  "end_time": "2026-08-27T23:00:00+00:00",
  "slot_count": 96,
  "energy_price_utc": [
    {"2026-06-18T22:00:00+00:00": 0.0842},
    {"2026-06-18T22:15:00+00:00": 0.0791},
    ... 94 more slots
  ],
  "grid_price_utc": [
    {"2026-06-18T22:00:00+00:00": 0.0412},
    ... 95 more slots
  ],
  "residual_price_utc": [
    {"2026-06-18T22:00:00+00:00": 0.0051},
    ... 95 more slots
  ]
}

GET /api/v1/prices/all all tariffs

Authentication API key required

Plan Pro only

Query parameters

Field	Type	Description
start_timerequired	datetime	Start of window in UTC. Example `2026-08-27T00:00:00Z`
end_time	datetime	End of window in UTC. Defaults to start_time + 24 h.

Response structure

Note

Response is a JSON object keyed by tariff_id.

Field	Type	Description
energy_price_utc	object[]	Energy component slots (CHF/kWh).
grid_price_utc	object[]	Grid component slots (CHF/kWh).
residual_price_utc	object[]	Residual charges slots (CHF/kWh).
slot_count	integer	Number of 15-min slots for this tariff.

Plan behaviour

Try it out

GET /api/v1/prices/all?start_time=2026-08-27T00:00:00Z ↗

date

No tariff_id — returns every active tariff in one call.

Code sample

Response

{
  "ckw_home_dynamic": {
    "date": "2026-08-27",
    "slot_count": 96,
    "energy_price_utc": [
      {"2026-06-18T22:00:00+00:00": 0.0842},
      ... 95 more
    ],
    "grid_price_utc": [...],
    "residual_price_utc": [...]
  },
  "ekz_dynamisch": {
    "date": "2026-08-27",
    "slot_count": 96,
    "energy_price_utc": [...],
    "grid_price_utc": [...],
    "residual_price_utc": [...]
  },
  ... all active tariffs
}

GET /api/v1/summary/daily

Authentication API key required

Plan Free & Pro

Query parameters

Field	Type	Description
tariff_idrequired	string
days	integer

Response fields

Field	Type	Description
tariff_id	string
days	object[]

Plan behaviour

Try it out

GET ↗

tariff_id required

days

Code sample

Response

{
  "tariff_id": "ckw_home_dynamic",
  "days": [
    {
      "date": "2026-08-27",
      "avg_price": 0.1284,
      "min_price": 0.0912,
      "max_price": 0.1873,
      "slot_count": 96
    },
    ... one entry per day
  ]
}

GET /api/v1/summary/monthly

Authentication API key required

Plan Pro only

Query parameters

Field	Type	Description
tariff_idrequired	string
months	integer

Response fields

Field	Type	Description
tariff_id	string
months	object[]

Plan behaviour

Try it out

GET ↗

tariff_id required

months

Code sample

Response

{
  "tariff_id": "ckw_home_dynamic",
  "months": [
    {
      "month": "2026-06",
      "avg_price": 0.1197,
      "min_price": 0.0688,
      "max_price": 0.2011,
      "slot_count": 2880
    },
    ... one entry per month
  ]
}

GET /api/v1/smart

Authentication API key required

Plan Pro only

Query parameters

Field	Type	Description
date_str	string

Response fields

Field	Type	Description
date	string
tariffs	object[]

Plan behaviour

Try it out

GET ↗

date_str

Defaults to today (Swiss time) if omitted.

Code sample

Response

{
  "date": "2026-08-27",
  "tariffs": [
    {
      "tariff_id": "ckw_home_dynamic",
      "provider_name": "CKW",
      "cheapest_window": {
        "time": "03:15",
        "price": 0.0688
      },
      "most_expensive_window": {
        "time": "19:00",
        "price": 0.2011
      },
      "avg_today": 0.1284
    },
    ... one entry per active tariff
  ]
}

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Company	UltorX GmbH
Legal form	Limited liability company (GmbH)
Registered office	Ronystrasse 17 6331 Hünenberg Kanton Zug, Schweiz
Business identification number (UID)	CHE-110.269.811
VAT number	CHE-110.269.811 MWST
Commercial register number	CH-170.4.004.522-4
Commercial register	Commercial Register Office of the Canton of Zug
Email	info@swisstariffhub.ch
Service operated	swisstariffhub.ch — API for Swiss dynamic electricity tariffs
Responsible for content	UltorX GmbH