EU Power Dispatch API
HALOWERK provides paid endpoints that AI agents call and pay for per request via x402 on Base. No account, no API key, no signup.
SearchLiveeip155:8453Exactvia cdp
Compute-schedulingDepin-workloadsCarbon-aware-computeBattery-dispatchPower-trading
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-10 15:57Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5EThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"docs": "https://energy.halowerk.com/examples/quickstart",
"error": "payment_required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"decimals": 6,
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"payment": {
"asset": "USDC",
"scheme": "exact",
"network": "Base Mainnet",
"chain_id": 8453,
"protocol": "x402",
"recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"network_id": "eip155:8453",
"amount_usdc": "0.02",
"amount_units": "20000",
"asset_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"resource": {
"url": "https://energy.halowerk.com/v3/dispatch-plan",
"tags": [
"compute-scheduling",
"depin-workloads",
"carbon-aware-compute",
"battery-dispatch",
"power-trading",
"germany",
"europe"
],
"method": "POST",
"iconUrl": "https://energy.halowerk.com/favicon.svg",
"mimeType": "application/json",
"description": "Schedules a deadline-bound compute, DePIN, battery or power-trading workload into an actionable German or European power window. Returns exact timing, expected EUR cost and savings, uncertainty, freshness, expiry and decision trace.",
"serviceName": "EU Power Dispatch API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"deadline": "2099-01-01T06:00:00.000Z",
"power_kw": 25,
"energy_kwh": 50,
"constraints": {
"must_run_continuously": true
},
"risk_profile": "balanced",
"opportunity_id": "bazaar_discovery_probe"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"action": "schedule",
"confidence": 0.95,
"expires_at": "2026-07-30T10:15:00.000Z",
"risk_flags": [],
"uncertainty": {
"type": "deterministic_day_ahead_market_data",
"forecast_signal": "experimental_not_used_for_schedule",
"price_range_eur_mwh": [
82.4,
82.4
]
},
"schedule_end": "2026-07-31T03:00:00.000Z",
"model_version": "dispatch-deterministic-3.0.0",
"decision_trace": [
"constraints_validated",
"candidate_windows_ranked",
"lowest_cost_feasible_window_selected"
],
"schedule_start": "2026-07-31T01:00:00.000Z",
"payment_receipt": {
"network": "eip155:8453",
"protocol": "x402",
"idempotent_replay": false
},
"baseline_cost_eur": 5.5,
"expected_cost_eur": 4.12,
"source_timestamps": {
"fetched_at": "2026-07-30T09:45:00.000Z",
"last_available": "2026-07-31T22:00:00.000Z",
"first_available": "2026-07-30T10:00:00.000Z",
"observed_through": "2026-07-31T22:00:00.000Z"
},
"source_attribution": {
"licence": "CC BY 4.0",
"attribution": "ENTSO-E Transparency Platform",
"licence_scope": "A44 day-ahead prices; DE-LU; preflight"
},
"expected_savings_eur": 1.38,
"expected_carbon_effect": "unknown"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"opportunity_id",
"power_kw",
"energy_kwh",
"deadline",
"risk_profile"
],
"properties": {
"deadline": {
"type": "string"
},
"power_kw": {
"type": "number",
"exclusiveMinimum": 0
},
"energy_kwh": {
"type": "number",
"exclusiveMinimum": 0
},
"constraints": {
"type": "object",
"properties": {
"latest_end": {
"type": "string"
},
"earliest_start": {
"type": "string"
},
"max_price_eur_mwh": {
"type": "number",
"maximum": 10000,
"minimum": -1000
},
"must_run_continuously": {
"type": "boolean",
"const": true
}
},
"additionalProperties": false
},
"risk_profile": {
"enum": [
"conservative",
"balanced",
"aggressive"
],
"type": "string"
},
"opportunity_id": {
"type": "string"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"price_usdc": 0.02,
"x402Version": 2,
"signing_guide": "https://energy.halowerk.com/examples/buy-nodejs",
"payment_headers": {
"response": "PAYMENT-RESPONSE",
"challenge": "PAYMENT-REQUIRED",
"retry_with": "PAYMENT-SIGNATURE"
},
"capability_request": {
"url": "https://bedarf.halowerk.com/capabilities/request",
"cost": "free",
"method": "POST",
"description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
"body_example": {
"max_price": 0.01,
"description": "what exactly is needed",
"requested_capability": "short label"
}
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.02USDC≈ $0.02 USD
on Base · exact scheme
Pay 0.02 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 20000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"decimals": 6,
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"deadline": "2099-01-01T06:00:00.000Z",
"power_kw": 25,
"energy_kwh": 50,
"constraints": {
"must_run_continuously": true
},
"risk_profile": "balanced",
"opportunity_id": "bazaar_discovery_probe"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"action": "schedule",
"confidence": 0.95,
"expires_at": "2026-07-30T10:15:00.000Z",
"risk_flags": [],
"uncertainty": {
"type": "deterministic_day_ahead_market_data",
"forecast_signal": "experimental_not_used_for_schedule",
"price_range_eur_mwh": [
82.4,
82.4
]
},
"schedule_end": "2026-07-31T03:00:00.000Z",
"model_version": "dispatch-deterministic-3.0.0",
"decision_trace": [
"constraints_validated",
"candidate_windows_ranked",
"lowest_cost_feasible_window_selected"
],
"schedule_start": "2026-07-31T01:00:00.000Z",
"payment_receipt": {
"network": "eip155:8453",
"protocol": "x402",
"idempotent_replay": false
},
"baseline_cost_eur": 5.5,
"expected_cost_eur": 4.12,
"source_timestamps": {
"fetched_at": "2026-07-30T09:45:00.000Z",
"last_available": "2026-07-31T22:00:00.000Z",
"first_available": "2026-07-30T10:00:00.000Z",
"observed_through": "2026-07-31T22:00:00.000Z"
},
"source_attribution": {
"licence": "CC BY 4.0",
"attribution": "ENTSO-E Transparency Platform",
"licence_scope": "A44 day-ahead prices; DE-LU; preflight"
},
"expected_savings_eur": 1.38,
"expected_carbon_effect": "unknown"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"opportunity_id",
"power_kw",
"energy_kwh",
"deadline",
"risk_profile"
],
"properties": {
"deadline": {
"type": "string"
},
"power_kw": {
"type": "number",
"exclusiveMinimum": 0
},
"energy_kwh": {
"type": "number",
"exclusiveMinimum": 0
},
"constraints": {
"type": "object",
"properties": {
"latest_end": {
"type": "string"
},
"earliest_start": {
"type": "string"
},
"max_price_eur_mwh": {
"type": "number",
"maximum": 10000,
"minimum": -1000
},
"must_run_continuously": {
"type": "boolean",
"const": true
}
},
"additionalProperties": false
},
"risk_profile": {
"enum": [
"conservative",
"balanced",
"aggressive"
],
"type": "string"
},
"opportunity_id": {
"type": "string"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-10 15:57Z
- Last indexed by Roundhouse
- 2026-09-09 15:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 05:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 400
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service EU Power Dispatch API and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=EU%20Power%20Dispatch%20API' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://energy.halowerk.com/v3/dispatch-plan, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.