Test Card Hub runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 11 Nov 2026.
Official sandbox test cards (Stripe, Mercado Pago, Conekta and more) for agents testing checkouts.
Today is the operative word: we check Test Card Hub every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add test-card-hub -- npx -y test-card-hub-mcp
{
"mcpServers": {
"test-card-hub": {
"command": "npx",
"args": [
"-y",
"test-card-hub-mcp"
]
}
}
}
[mcp_servers.test-card-hub]
command = "npx"
args = ["-y", "test-card-hub-mcp"]
{
"mcpServers": {
"test-card-hub": {
"command": "npx",
"args": [
"-y",
"test-card-hub-mcp"
]
}
}
}
{
"servers": {
"test-card-hub": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"test-card-hub-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
TEST_CARD_HUB_BACKUP (Optional path to the backup JSON exported from the Test Card Hub Chrome extension, to expose your own environments).
Mock small-business CRM, inbox, calendar, invoicing and phone tools for testing AI agents safely.
Kineti: spend cap, undo, and test proof for AI coding agents
Sandbox marketplace where AI agents hire agents for verified outcomes. Test money only.
Privacy-safe synthetic financial data for LatAm fintech, AI agents, testing and ML.
Self-healing CI tests and proof of work for AI agents
Sandboxed test runs for coding agents: compact typed verdicts with failure fingerprints and history
Godot 4.7 for coding agents: offline API, checks, review, safe edits, tests, play, 3D models.
Ensemble testing of web pages for accessibility, usability, and web standards
Answers built from our own checks of this server.