Subastech — subastas judiciales de inmuebles (BOE)

Ficha de una subasta

subasta

Read-onlyIdempotent

Ficha pública de una subasta del BOE por identificador (10 caracteres), URL de app.subastech.com o identificador BOE (SUB-…): dirección, valores, fechas, resultado, lotes y un resumen citable. Pública, sin cuenta. El scoring, veredicto, cargas, ROI, valoración e intervinientes requieren cuenta y plan Pro o superior; si algo está cerrado se devuelve locked con upgradeUrl.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "subasta"
  }
}

Input Schema

Name	Required	Description
`id`	No	Identificador público de la subasta (10 caracteres)
`url`	No	URL de la ficha en app.subastech.com
`boe_id`	No	Identificador del BOE (p. ej. `SUB-JA-2026-123456`): devuelve todos los lotes

Output Schema

Name	Required	Description
`cta`	No
`lotes`	No
`locked`	No
`resumen`	Yes	Frase citable con los datos del BOE
`subasta`	Yes
`disclosure`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed100 schema fields changedOct 25, 2026
- removedOutput schema / properties / lotes / items / properties / appraisal / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / appraisal / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / cadastral / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / cadastral / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / cadastralReview / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / cadastralReview / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / closedAt / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / closedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / contentUpdatedAt / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / contentUpdatedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / cp / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / cp / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / daysLeft / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / daysLeft / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / deposit / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / deposit / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / discount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / discount / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / end / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / end / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / finalBid / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / finalBid / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / imageUrl / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / imageUrl / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / lat / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / lat / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / links / properties / catastroPdf / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / links / properties / catastroPdf / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / links / properties / streetView / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / links / properties / streetView / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / lon / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / lon / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / m2 / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / m2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / minimumBid / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / minimumBid / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / municipalitySlug / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / municipalitySlug / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / occupied / anyOf
```
Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / occupied / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / provinceSlug / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / provinceSlug / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / ref / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / ref / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / status / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / status / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / valueAuction / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / valueAuction / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / lotes / items / properties / valueM2 / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / lotes / items / properties / valueM2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / appraisal / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / appraisal / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / cadastral / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / cadastral / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / cadastralReview / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / cadastralReview / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / closedAt / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / closedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / contentUpdatedAt / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / contentUpdatedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / cp / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / cp / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / daysLeft / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / daysLeft / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / deposit / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / deposit / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / discount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / discount / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / end / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / end / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / finalBid / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / finalBid / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / imageUrl / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / imageUrl / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / lat / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / lat / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / links / properties / catastroPdf / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / links / properties / catastroPdf / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / links / properties / streetView / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / links / properties / streetView / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / lon / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / lon / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / m2 / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / m2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / minimumBid / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / minimumBid / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / municipalitySlug / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / municipalitySlug / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / occupied / anyOf
```
Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / occupied / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / provinceSlug / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / provinceSlug / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / ref / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / ref / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / status / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / status / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / valueAuction / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / valueAuction / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / subasta / properties / valueM2 / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / subasta / properties / valueM2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```

Changed4 schema fields changedOct 13, 2026

addedOutput schema / properties / lotes / items / properties / cadastralReview

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

changedOutput schema / properties / lotes / items / required

Previous value: -[
-  "id",
-  "type",
-  "isNew",
-  "title",
-  "address",
-  "municipio",
-  "provincia",
-  "cp",
-  "ref",
-  "provinceSlug",
-  "municipalitySlug",
-  "end",
-  "contentUpdatedAt",
-  "daysLeft",
-  "valueAuction",
-  "valueM2",
-  "minimumBid",
-  "deposit",
-  "appraisal",
-  "occupied",
-  "discount",
-  "m2",
-  "status",
-  "cadastral",
-  "imageUrl",
-  "lat",
-  "lon",
-  "lot",
-  "finalBid",
-  "resultStatus",
-  "closedAt",
-  "phase",
-  "url",
-  "links",
-  "fuente"
-]New value: +[
+  "id",
+  "type",
+  "isNew",
+  "title",
+  "address",
+  "municipio",
+  "provincia",
+  "cp",
+  "ref",
+  "provinceSlug",
+  "municipalitySlug",
+  "end",
+  "contentUpdatedAt",
+  "daysLeft",
+  "valueAuction",
+  "valueM2",
+  "minimumBid",
+  "deposit",
+  "appraisal",
+  "occupied",
+  "discount",
+  "m2",
+  "status",
+  "cadastral",
+  "cadastralReview",
+  "imageUrl",
+  "lat",
+  "lon",
+  "lot",
+  "finalBid",
+  "resultStatus",
+  "closedAt",
+  "phase",
+  "url",
+  "links",
+  "fuente"
+]

addedOutput schema / properties / subasta / properties / cadastralReview

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

changedOutput schema / properties / subasta / required

Previous value: -[
-  "id",
-  "type",
-  "isNew",
-  "title",
-  "address",
-  "municipio",
-  "provincia",
-  "cp",
-  "ref",
-  "provinceSlug",
-  "municipalitySlug",
-  "end",
-  "contentUpdatedAt",
-  "daysLeft",
-  "valueAuction",
-  "valueM2",
-  "minimumBid",
-  "deposit",
-  "appraisal",
-  "occupied",
-  "discount",
-  "m2",
-  "status",
-  "cadastral",
-  "imageUrl",
-  "lat",
-  "lon",
-  "lot",
-  "finalBid",
-  "resultStatus",
-  "closedAt",
-  "phase",
-  "url",
-  "links",
-  "fuente"
-]New value: +[
+  "id",
+  "type",
+  "isNew",
+  "title",
+  "address",
+  "municipio",
+  "provincia",
+  "cp",
+  "ref",
+  "provinceSlug",
+  "municipalitySlug",
+  "end",
+  "contentUpdatedAt",
+  "daysLeft",
+  "valueAuction",
+  "valueM2",
+  "minimumBid",
+  "deposit",
+  "appraisal",
+  "occupied",
+  "discount",
+  "m2",
+  "status",
+  "cadastral",
+  "cadastralReview",
+  "imageUrl",
+  "lat",
+  "lon",
+  "lot",
+  "finalBid",
+  "resultStatus",
+  "closedAt",
+  "phase",
+  "url",
+  "links",
+  "fuente"
+]

Changed2 schema fields changedOct 2, 2026

changedOutput schema / properties / lotes / items / properties / phase / enum

Previous value: -[
-  "activa",
-  "historica",
-  "descartada"
-]New value: +[
+  "activa",
+  "historica",
+  "descartada",
+  "suspendida"
+]

changedOutput schema / properties / subasta / properties / phase / enum

Previous value: -[
-  "activa",
-  "historica",
-  "descartada"
-]New value: +[
+  "activa",
+  "historica",
+  "descartada",
+  "suspendida"
+]

Changed1 schema field changedSep 11, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```
First observedSep 6, 2026

TDQS

A3.6/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already establish read-only, idempotent, non-destructive behavior. The description adds useful context beyond them: the record is public without an account, premium fields are gated, and blocked content returns `locked` with `upgradeUrl`.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is compact and front-loads the core resource and lookup modes, followed by access constraints. The long first sentence is dense but each part carries useful information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists, so return structure need not be explained. However, because all three input parameters are optional, the description should say that at least one identifier is required and ideally explain parameter precedence; this omission is a meaningful gap for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the schema already documents all three parameters in detail. The description adds only the meaningful note that `boe_id` returns all lots, but does not clarify mutual exclusivity or precedence among the three optional lookup parameters.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states that this retrieves a public auction record from the BOE by identifier, app URL, or BOE ID, and lists the returned data (address, values, dates, result, lots, citable summary). It is distinguishable from broader search siblings through the 'por identificador' lookup framing, though it does not explicitly name them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied by the identifier/URL/BOE-ID lookup modes, and the description notes that no account is needed. However, it does not explicitly say when to use this instead of buscar_subastas, buscar_por_codigo, or analisis_subasta, nor does it say when not to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All Subastech — subastas judiciales de inmuebles (BOE) tools Inspect

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