FlatCash — Native Currency for AI Agents is answering right now. Last checked 7 min ago. It exposes 10 tools.
CPI-pegged stablecoin for AI agents. Zero fees, task board, self-register in 30s.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 10 August 2026. No other catalogue keeps this.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.
claude mcp add flatcash --transport http https://flat.cash/api/mcp
https://flat.cash/api/mcp
[mcp_servers.flatcash]
url = "https://flat.cash/api/mcp"
{
"mcpServers": {
"flatcash": {
"url": "https://flat.cash/api/mcp"
}
}
}
{
"servers": {
"flatcash": {
"type": "http",
"url": "https://flat.cash/api/mcp"
}
}
}
This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
flat_auth
flat_cash_delivery
flat_earn
flat_explore
flat_pay
flat_plan
flat_read
flat_register
flat_suggest
flat_verify
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://flat.cash/api/mcp | streamable-http | needs auth | 630 ms | 7 min ago |
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Answers built from our own checks of this server.