Core Region Shadow Prices on Congested Grid Elements, by Hour (JAO Publication Tool)
jaopublicationtoolcore/shadow-prices
Shadow prices of the congested critical network elements (CNECs) in the Core region's day-ahead flow-based market coupling, from the Joint Allocation Office publication tool, for one hour of one delivery day: for each binding element the shadow price in euros per megawatt, the responsible TSO, the element name, remaining available margin (ram), maximum flow (fmax), reference flow, and the power transfer distribution factors for every Core hub. Needs a UTC date and hour; returns the first rows (default 10, at most 30) with the total row count so you can page with skip. An hour with no congestion or no publication returns an empty list. Source: JAO Publication Tool (Core); served by Eden Engine; not an official JAO product.
Price
$0.0026 per call
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.
Data source
Data from the Joint Allocation Office (JAO) Publication Tool for the Core region (publicationtool.jao.eu/core). Served by Eden Engine; not an official JAO product.
Use it
Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.
Connect once and your AI can find and run this tool, and any other it needs.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "jaopublicationtoolcore/shadow-prices" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "jaopublicationtoolcore/shadow-prices" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "jaopublicationtoolcore/shadow-prices", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "jaopublicationtoolcore/shadow-prices", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.
Pricing
Every charge this tool can incur.
| Charge | Price |
|---|---|
Per call | $0.0026 |
- Updated
- Oct 25, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"date",
"hour_utc"
],
"properties": {
"date": {
"type": "string",
"pattern": "^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$",
"description": "Delivery date in UTC, YYYY-MM-DD, for example 2026-10-22. The results for the next day are published during the day before; a date not yet published returns an empty list."
},
"skip": {
"type": "integer",
"default": 0,
"maximum": 100000,
"minimum": 0,
"description": "Rows to skip, for paging; compare with `totalRowsWithFilter` in the answer."
},
"take": {
"type": "integer",
"default": 10,
"maximum": 30,
"minimum": 1,
"description": "Rows to return, 1 to 30 (default 10). Each row is about 1.2 KB."
},
"hour_utc": {
"type": "string",
"pattern": "^([01][0-9]|2[0-3])$",
"description": "UTC hour of the delivery day as two digits, 00 to 23: 10 means 10:00 to 10:59 UTC. Four 15-minute rows per hour for the 15-minute datasets."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"dateTimeUtc",
"tso",
"cnecName",
"shadowPrice"
],
"properties": {
"id": {
"type": "integer",
"description": "The row's identifier on the publication tool."
},
"ram": {
"type": "number",
"description": "Remaining available margin in megawatts."
},
"tso": {
"type": "string",
"description": "The transmission system operator responsible for the element."
},
"fmax": {
"type": "number",
"description": "Maximum flow on the element, megawatts."
},
"imax": {
"type": [
"number",
"null"
],
"description": "Maximum admissible current, amperes. Null when the element has no current limit."
},
"hubTo": {
"type": "string",
"description": "The hub the element's flow ends at."
},
"ramMcp": {
"type": [
"number",
"null"
],
"description": "RAM at the market coupling point, megawatts. Null when it is not published for the element."
},
"cnecEic": {
"type": [
"string",
"null"
],
"description": "The element's EIC code. Null when the element has none (external constraints)."
},
"hubFrom": {
"type": "string",
"description": "The hub the element's flow starts from."
},
"cnecName": {
"type": "string",
"description": "The critical network element's name."
},
"contName": {
"type": [
"string",
"null"
],
"description": "The contingency the element is monitored under. Null when it is monitored in the base case."
},
"branchEic": {
"type": [
"string",
"null"
],
"description": "The branch's EIC code. Null when the element has none."
},
"direction": {
"type": "string",
"description": "Flow direction the constraint applies to, for example DIRECT or OPPOSITE."
},
"dateTimeUtc": {
"type": "string",
"description": "Start of the 15-minute period, UTC ISO 8601."
},
"shadowPrice": {
"type": "number",
"description": "Shadow price of the binding constraint, euros per megawatt."
}
},
"additionalProperties": {
"type": [
"number",
"string",
"null"
],
"description": "Further columns: frm, fref, f0core, f0all, fuaf, amr, ltaMargin, cva, iva, ftotalLtn, minRamFactor, maxZ2ZPtdf and hub_<ZONE> power transfer distribution factors, one per Core hub."
}
},
"description": "Congested elements with a shadow price, 15-minute periods, starting at skip."
},
"messages": {
"description": "Service messages, null when there are none."
},
"rejected": {
"type": "boolean",
"description": "Whether the service rejected the request."
},
"totalRows": {
"type": "integer",
"description": "Rows published for the hour before any filter."
},
"appliedFilter": {
"description": "The filter the service applied, null when none."
},
"lastModifiedOn": {
"type": [
"string",
"null"
],
"description": "When the dataset was last modified, UTC ISO 8601. Null when no data exists for the hour."
},
"totalRowsWithFilter": {
"type": "integer",
"description": "Rows matching the hour; page with skip until reached."
}
},
"description": "The publication tool's response envelope. Envelope fields: `rejected` is false for an accepted request and `messages` is null.",
"additionalProperties": true
}