First Dollar Desk is answering right now. Last checked 14 min ago. It exposes 3 tools.
Human $1 Stripe checkout and $0.05 Base USDC agent verify over HTTP 402. Self-pay rejected.
Today is the operative word: we check First Dollar Desk every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.
claude mcp add verify --transport http https://first-dollar-desk.undone-k.workers.dev/mcp
https://first-dollar-desk.undone-k.workers.dev/mcp
[mcp_servers.verify]
url = "https://first-dollar-desk.undone-k.workers.dev/mcp"
{
"mcpServers": {
"verify": {
"url": "https://first-dollar-desk.undone-k.workers.dev/mcp"
}
}
}
{
"servers": {
"verify": {
"type": "http",
"url": "https://first-dollar-desk.undone-k.workers.dev/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
get_goal
get_pricing
verify
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://first-dollar-desk.undone-k.workers.dev/mcp | streamable-http | answering | 112 ms | 14 min ago |
Agent floor and MCP market: catalog, rack, Stripe checkout, x402, A2A.
Verify USDC payments and balances on Base mainnet: check_payment, get_balance, decode_tx.
Resolve and check .cell names on Nervos, verify what a name signed, pay over Fiber as an agent.
26 pay-per-call tools for agents: scrape, verify, guards, crypto. x402 USDC on Base.
Search, price and buy field-tested agent-ops kits (evals, security, runbooks) via Stripe checkout.
Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.
Book real hotel and resort stays from any AI agent: all-in pricing, hosted Stripe checkout, no key.
A human checks and confirms in DeskCalc the figures an AI read from invoices, receipts, statements.
Answers built from our own checks of this server.