Developer Tools

ar-agents.ar

Provides tools for validating Argentine tax IDs and calculating VAT and income tax retentions.

1 endpoint11 known toolsFirst detected July 2, 2026Last detected August 6, 2026

ENDPOINT 1

https://ar-agents.ar/api/mcp

No auth detected

MCP server metadata

Name: ar-agents
Version: 1.0.0

Capabilities

tools.listChanged

Server instructions

Zero-credential subset of the ar-agents toolkit (Argentina): CUIT and CBU/CVU validation, IVA/SICORE/SUSS fiscal calculators, public BCRA lookups, plus the registry reads. Use get_good_standing to judge an automated company before transacting with it (resolve by url, id, or cuit; forming/stale entries are non-attesting) and registry_lookup to list entries. Call get_toolkit_info to discover the full local toolkit.

Known tools 11

validate_cuit

Validate an Argentine CUIT/CUIL with the AFIP mod-11 check-digit algorithm.

Inferred read-only

validate_cbu

Validate an Argentine CBU or CVU (22-digit bank/PSP account id) with the BCRA double check-digit algorithm, and identify the bank or fintech behind it.

Inferred read-only

iva_percepcion_calculate

Compute the VAT perception for a sale invoice (percepcion de IVA, RG 2408 and family).

Potential side effects

iva_retencion_calculate

Compute the VAT retention on a payment to a supplier (retencion de IVA, RG 2854/10).

Potential side effects

sicore_retencion_calculate

Compute the federal income tax (Ganancias) retention on a payment per RG 830/00, with the monthly accumulator rule.

Potential side effects

suss_contribuciones_calculate

Compute one employee's monthly payroll math for Form F.931 (SICOSS): employee aportes (11% + 3% + 3%) and employer contribuciones (jubilacion, INSSJP, AAFF, FNE, obra social, ART).

Inferred read-only

bcra_deudas_lookup

Look up a CUIT in BCRA's Central de Deudores (public, no-auth REST API): consolidated credit situation 1 (normal) to 6 (irrecuperable) across all Argentine banks, plus bounced cheques.

Inferred read-only

bcra_monetary_variable

Read BCRA's public monetary statistics (no auth): USD oficial mayorista/minorista, reservas, tasa de politica monetaria, BADLAR, CER, UVA, inflacion mensual/interanual.

Inferred read-only

get_toolkit_info

Canonical info about the ar-agents project: typed npm packages and tools for operating in Argentina, what this hosted MCP endpoint exposes vs what requires a local install with your own credentials, plus links (llms.txt, npm, GitHub).

Inferred read-only

get_good_standing

Resolve an automated company's good standing BEFORE transacting with it.

Inferred read-only

registry_lookup

List automated companies in the registry, optionally filtered by jurisdiction, type, or status.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.ar-agents]
url = "https://ar-agents.ar/api/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "ar-agents": {
      "type": "http",
      "url": "https://ar-agents.ar/api/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: ar-agents
Remote MCP URL: https://ar-agents.ar/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "ar-agents": {
      "url": "https://ar-agents.ar/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "ar-agents": {
      "type": "http",
      "url": "https://ar-agents.ar/api/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "ar-agents",
  "transport": "streamable-http",
  "url": "https://ar-agents.ar/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for ar-agents.ar was fetched 2026-07-26T05:49:39.399Z and is being refreshed.

Trust status Neutral

ar-agents.ar is assessed as Neutral: No suspicious signals found, but no strong positive signal either

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.