🌮 MadTaco MCP — verification and trust checks for AI agents.

Name: 🌮 MadTaco MCP — verification and trust checks for AI agents.
Author: madtaco

Validate tax IDs, IBANs, emails, and phones.

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

Validate Tax Id: Validate a tax ID format and checksum (CL RUT, MX RFC, and more). Free — 0 credits.
Validate Iban: Validate an IBAN checksum and parse bank metadata. Free — 0 credits.
Validate Email: Validate an email address. mode syntax is free; mode full costs 0.005 credits (tier 2).

What data it sees

Do you need an account

No: the server works without sign-in

Validate tax IDs, IBANs, emails, and phones. Screen entities against sanctions lists (OFAC, EU, UK, UN). Verify companies, inspect domains, and run composite trust screens. Create accounts, check usage, and propose new capabilities.

Free tools (tax-id, IBAN, email syntax, phone format, Chilean indicators) work without an API key. Paid checks need a funded MadTaco account — authenticate with your API key via X-Api-Key.

Every response includes credits_charged; failed checks are never billed.

Setup: madtaco.dev/mcp API docs: madtaco.dev/docs Pricing: madtaco.dev/pricing.json

Server tool list (12)

Raw names from tools/list. Only developers need these.

validate_tax_id	Validate a tax ID format and checksum (CL RUT, MX RFC, and more). Free — 0 credits.
validate_iban	Validate an IBAN checksum and parse bank metadata. Free — 0 credits.
validate_email	Validate an email address. mode syntax is free; mode full costs 0.005 credits (tier 2).
validate_phone	Validate a phone number. mode format is free; mode full costs 0.005 credits (tier 2).
screen_sanctions	Screen a name against OFAC SDN, EU, UK, and UN sanctions lists. Costs 0.10 credits (tier 2). Requires API key on the MCP request.
verify_company	Verify a company against an official registry (GB only in v1). Costs 0.15 credits (tier 2). Requires API key on the MCP request.
inspect_domain	Inspect domain age, DNS posture, and lookalike risk. Costs 0.05 credits (tier 2). Requires API key on the MCP request.
screen	Run a composite trust screen across sanctions, registry, domain, email, and phone checks. Only completed checks are charged. Requires API key on the MCP request.
propose_check	Propose a new check capability MadTaco does not offer yet. Optionally pledge credits (held, not charged). Requires API key on the MCP request.
create_account	Create a MadTaco account (agent-native signup). A 6-digit verification code is emailed — no API key yet.
verify_account	Verify the emailed 6-digit code and receive an API key (tier registered).
get_usage	Get today usage totals, per-operation counts, credits spent, and balance. Optional period=7d\|30d for daily breakdown. Requires API key on the MCP request.