Subastech — subastas judiciales de inmuebles (BOE)

Informe de viabilidad

informe

Read-onlyIdempotent

Informe de viabilidad de una subasta con las secciones que tu plan permite (resumen, cargas, descripción, catastro, calculadora, valoración, intervinientes, estadísticas); las cerradas se listan en locked. Requiere cuenta verificada (scope informes:read). Los tiers basic/completo solo se sirven si ya están desbloqueados: si no, devuelve unlock_required con la URL para desbloquearlos en el navegador (y, si el comercio para agentes está activo, compra.paymentLink para pagarlos por MPP). Nunca consume cuota ni cobra por sí misma. Parte del texto se genera con IA (disclosure).

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

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

Input Schema

Name	Required	Description	Default
`id`	Yes	Identificador público de la subasta (10 caracteres)
`tier`	No	`web` (por defecto, según tu plan), `basic` o `completo` (solo si ya están desbloqueados)

Output Schema

Name	Required	Description
`ai`	No
`cta`	No
`tier`	Yes
`compra`	No
`locked`	Yes
`pdfUrl`	No
`subasta`	Yes
`secciones`	Yes
`disclosure`	No
`unlock_url`	No
`informe_url`	Yes
`analisis_listo`	Yes	false si polSaaS aún está generando el veredicto

Schema Changelog

Changes observed during successful MCP inspections.

Changed55 schema fields changedOct 25, 2026

removedOutput schema / properties / subasta / properties / appraisal / anyOf

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / subasta / properties / appraisal / type
```
Added value: +[
+  "number",
+  "null"
+]
```

changedOutput schema / properties / subasta / properties / axes / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "cargas": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "cargasMotivo": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "posesion": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "rentab": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "titularidad": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "cargas",
-      "posesion",
-      "rentab",
-      "titularidad"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "cargas": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "cargasMotivo": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "posesion": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "rentab": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "titularidad": {
+        "type": [
+          "number",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "cargas",
+      "posesion",
+      "rentab",
+      "titularidad"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "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 / level / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / subasta / properties / level / type
```
Added value: +[
+  "string",
+  "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 / score / anyOf

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / subasta / properties / score / type
```
Added value: +[
+  "number",
+  "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"
+]
```

Changed3 schema fields changedOct 13, 2026

changedOutput schema / properties / subasta / properties / axes / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "cargas": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "posesion": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "rentab": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "titularidad": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "cargas",
-      "posesion",
-      "rentab",
-      "titularidad"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "cargas": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "cargasMotivo": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "posesion": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "rentab": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "titularidad": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "required": [
+      "cargas",
+      "posesion",
+      "rentab",
+      "titularidad"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

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"
+]

Changed1 schema field changedOct 2, 2026

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

A4.1/5.0

Behavior5/5

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

Annotations already cover read-only, idempotent, non-destructive, closed-world, but the description adds genuinely new behavior: it never consumes quota or charges on its own, the `unlock_required` error path with a browser unlock URL, the optional `compra.paymentLink` MPP fallback, and that part of the text is AI-generated (`disclosure`). These are exactly the side effects and failure modes an agent could not infer from any structured field.

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?

A single dense paragraph with no filler; the core purpose is front-loaded, then prerequisites, tier behavior, cost, and the AI disclosure follow in a logical order. It is tighter than most multi-sentence descriptions but is packed into one run-on block, which slightly hurts scanability.

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

Completeness5/5

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

With an output schema and rich annotations already in place, the description fills the remaining gaps: authorization requirements, per-tier availability, the locked/`unlock_required` response shape, payment fallback, and the absence of quota or billing impact. An agent has everything needed to invoke it correctly and interpret the failure case.

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

Parameters4/5

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

Schema coverage is 100%, so the schema already documents `id` and the `tier` enum, making 3 the baseline. The description goes beyond the schema by explaining what the tier values actually mean operationally: `basic`/`completo` are only served when already unlocked and otherwise produce `unlock_required`, which is semantics the enum description does not state.

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?

States a specific resource and outcome: a viability report for an auction, enumerated section by section (resumen, cargas, descripción, catastro, calculadora, valoración, intervinientes, estadísticas), plus the locked/unlocked distinction. An agent understands exactly what it gets. It never names or differentiates itself from the closely related siblings `analisis_subasta` or `subasta`, which keeps it off 5.

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?

Gives strong precondition context: verified account required, scope `informes:read`, and the tier rule (`basic`/`completo` only if already unlocked, otherwise `unlock_required`). However, it offers no guidance on when to choose this tool over the adjacent `analisis_subasta` or `subasta` tools, so selection between siblings is left to inference.

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

Try in Browser

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

Resources

Need Help?