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Asientouno

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Registro Mercantil español (BORME) + subvenciones (BDNS) + contratos públicos (PLACSP), por empresa.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.

Manual Client & Custom JSON ConfigExpand JSON ▾
No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for asientouno, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.
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Documentation Overview

Asiento Uno — servidor MCP del Registro Mercantil español

Datos del BORME (Boletín Oficial del Registro Mercantil) cruzados con subvenciones públicas (BDNS) y contratos públicos (PLACSP), por empresa, con enlace al documento oficial de cada dato. Pensado para agentes de IA: diligencia debida, KYB, verificación de proveedores y clientes.

  • Endpoint remoto: https://mcp.asientouno.com/mcp (Streamable HTTP, JSON-RPC)
  • Autenticación: Authorization: Bearer <api_key>
  • Plan gratuito: 50 llamadas al día (Pro: 500, Business: 5.000), 60 por minuto
  • Web: https://asientouno.com/mcp · Precios: https://asientouno.com/precios

English: MCP server for the Spanish Companies Registry gazette (BORME), joined with public grants (BDNS) and public procurement awards (PLACSP) per company. Every fact links to its official publication. Remote Streamable HTTP endpoint, Bearer API key, free tier (50 calls/day), self-serve signup.

Herramientas

HerramientaQué devuelve
asientouno_buscar_empresaNombre o NIF → empresas coincidentes (con desambiguación: dice cuándo no está segura).
asientouno_informe_completoIdentificativos, órgano de administración vigente, actos recientes y señales de riesgo (concurso, disolución, extinción).
asientouno_actos_bormeActos societarios paginados por cursor, cada uno con la URL oficial de su publicación en el BORME.
asientouno_cargos_personaNombre de persona → cargos vigentes e históricos y empresas vinculadas (el grafo de relaciones).
asientouno_subvenciones_empresaSubvenciones registradas en la BDNS para la empresa.
asientouno_contratos_empresaAdjudicaciones en la PLACSP para la empresa.
asientouno_riesgo_empresaConcurso, disolución y extinción publicados en el BORME, con fecha y documento.
asientouno_cuentas_anualesResponde no_disponible_aun cuando no hay dato: nunca inventa una cifra.

Todas las herramientas son de solo lectura (readOnlyHint: true).

Conseguir una API key

En https://asientouno.com/cuenta: entras con tu correo (enlace mágico, sin contraseña) y pulsas «Crear mi API key gratuita». La clave aparece en pantalla una sola vez. Sin tarjeta. Los planes Pro y Business se contratan en https://asientouno.com/precios y suben la cuota de esa misma clave.

Conectar

Claude Desktop / Claude Code (vía mcp-remote)

examples/claude_desktop_config.json:

config.json
{
  "mcpServers": {
    "asientouno": {
      "command": "npx",
      "args": [
        "-y", "mcp-remote",
        "https://mcp.asientouno.com/mcp",
        "--header", "Authorization: Bearer ${ASIENTOUNO_API_KEY}"
      ],
      "env": { "ASIENTOUNO_API_KEY": "tu_api_key" }
    }
  }
}

Cualquier cliente MCP con transporte HTTP

Terminal
curl -s https://mcp.asientouno.com/mcp \
  -H "Authorization: Bearer $ASIENTOUNO_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

Sin clave, el servidor responde 401 con el mensaje exacto de lo que falta. https://mcp.asientouno.com/health es público y devuelve {"estado":"ok"}.

Cifras (26/09/2026)

  • 883.659 sociedades y 3,9 millones de actos del BORME (boletines desde el 11/03/2024).
  • 148.339 concesiones de la BDNS (desde 2022), 66.546 atribuidas a 24.051 sociedades.
  • 653.078 adjudicaciones de la PLACSP (desde 2004).

Lo que este servidor NO hace

  • No da cuentas anuales ni cifras de facturación: asientouno_cuentas_anuales responde no_disponible_aun.
  • No dice si una empresa está sancionada: una coincidencia por nombre con una lista no es una sanción.
  • No cubre el BORME anterior a marzo de 2024 ni empresas fuera de España.
  • No tiene SLA: es un servicio en un servidor único; /health es público para que lo vigiles.
  • El saludo del protocolo (initialize, tools/list) responde sin clave; los datos (tools/call) no.

Fuentes y límites, dichos claros

  • BORME cargado desde marzo de 2024; BDNS desde 2022; PLACSP desde 2004.
  • Una coincidencia por nombre no es una identificación: la búsqueda devuelve candidatos y siguiente_paso cuando hay ambigüedad.
  • Nunca se afirma que una empresa esté sancionada por una coincidencia de nombre.
  • Plan gratuito: los nombres de personas físicas van parcialmente ocultos (en los campos y en el texto de los actos) y asientouno_cargos_persona solo busca sociedades. Pro y Business los muestran completos. El nombre de una sociedad es público y se ve siempre.

Licencia

Este repositorio (documentación y ejemplos) es MIT. Los datos que sirve el endpoint proceden de fuentes públicas (BOE, IGAE, Ministerio de Hacienda) y se reutilizan conforme a la Ley 37/2007; cada respuesta enlaza a su publicación.

Read the full README →View source on GitHub →

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Reviews

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Frequently Asked Questions about Asientouno

We don't have a confirmed install command for asientouno yet, so we don't publish a generated one — a guessed package name would point at the wrong package or none at all. Follow the project's own README or setup instructions (https://github.com/odela-pixel/asientouno-mcp) for the current steps.

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Technical Specs & Signals

Category💻Developer Tools
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Last updatedSep 28, 2026
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28Quality signal: Emerging · 28/100How this signal is calculated ▾
Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20
Documentation & tools12/30
Adoption & activity1/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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