keycae-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| KEYCAE_API_KEY | Yes | Your KeyCAE API key for authentication. |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| resources | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| emit_invoiceB | Emit an Argentine electronic invoice (factura electrónica) via ARCA/AFIP. Returns CAE, PDF URL, and QR code. |
| get_invoiceA | Get details of a previously emitted invoice by its ID. |
| list_invoicesB | List recent invoices for the authenticated tenant. |
| list_credentialsA | List all digital certificates (credentials) registered for the authenticated CUIT. |
| create_credentialA | Generate a new RSA keypair and Certificate Signing Request (CSR) for ARCA/AFIP. The CSR must be submitted to AFIP to obtain a digital certificate. |
| check_delegationA | Check the ARCA/AFIP delegation status for the authenticated CUIT. Delegation is required before emitting invoices. |
| request_delegationA | Request ARCA/AFIP delegation for electronic invoicing. This authorizes KeyCAE (the representative) to emit invoices on your behalf. If Hermes auto-delegation is enabled, this is processed automatically. |
| lookup_taxpayerB | Look up an Argentine taxpayer (contribuyente) by CUIT in the AFIP registry. Returns name, tax condition, and active activities. |
| get_billing_statusA | Check the current billing plan, monthly usage, and remaining invoice quota. |
| keycae_healthA | Check if the KeyCAE API is healthy and reachable. |
| list_puntos_de_ventaA | List available points of sale (puntos de venta) for the authenticated CUIT. Shows which ones are enabled for electronic invoicing. |
| check_emission_capabilityA | Check what types of invoices a CUIT can emit. Returns compatible invoice types based on tax condition (Monotributo, RI, Exento). |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
| keycae-docs |
TDQS
Scored across 12 tools
All tools have clearly distinct purposes, covering delegation, credentials, invoices, points of sale, taxpayer lookup, and health check. No two tools overlap in functionality.
Most tools follow a consistent verb_noun pattern (e.g., check_delegation, emit_invoice). The only minor deviation is keycae_health, which uses a noun_noun format but is still clear.
12 tools is a well-scoped set for an electronic invoicing API. Each tool addresses a distinct aspect of the domain without being excessive or insufficient.
The set covers creation and retrieval but lacks critical operations like invoice cancellation, credential deletion, and delegation revocation. These missing lifecycle steps likely cause agent failures in common workflows.