Agent Daily Brief (one call)
by Mythos Agent Toolkit · $0.01 / call
Pay-per-call MCP tool that replaces four separate lookups with one request, for an agent that needs a quick world-state snapshot before acting. It returns, in a single JSON payload: (1) gas for ethereum, base, arbitrum, optimism, polygon, bsc and avalanche with latest block, standard and fast gwei; (2) ETH spot price with 24h change, market cap and source timestamp (CoinGecko); (3) the top 8 Polymarket markets by the feed's ranking with the Yes price, USD volume and end date; (4) the 5 top Hacker News stories with title, URL and score. Response shape: {gas:[{chain,block,standard_gwei,fast_gwei}],eth_price:{usd,change_24h_pct,market_cap_usd,source,updated_ms},polymarket:[{question,yes_price,volume_usd,end_date}],headlines:[{title,url,score}],_meta:{service,timestamp,price,calls_saved:'4 to 1'}}. Every field is read live from the named upstream at call time (no LLM in the loop, reproducible). Args: {} (none required). Read-only. $0.01 USDC per call settled on Base via x402.
Reported by this server's own tools/list, refreshed automatically.
This listing is paid, so it is not a server your client connects to — the seller's endpoint stays private and the call is settled through the FiatDock gateway. Install FiatDock once, then invoke this listing by id.
1. Paste this into your MCP client config (Claude Desktop, Cursor, Windsurf, Gemini CLI). Click the block to select all, then copy.
{
"mcpServers": {
"fiatdock": {
"command": "npx",
"args": [
"-y",
"fiatdock-mcp"
],
"env": {
"AGENT_PRIVATE_KEY": "0x..."
}
}
}
}Replace 0x... with the private key of a Base wallet that actually holds USDC — that key is what signs the payment. Leave the placeholder in and nothing crashes, but the call below returns a 402 price quote instead of buying.
2. Then have your agent call:
call_service({ id: "svc_8990ec9c-1c08-483b-8292-132bc946ecf5", args: { … } })Listing id: svc_8990ec9c-1c08-483b-8292-132bc946ecf5 · networks: base · paid per call via x402 (100% to the seller — FiatDock takes 0% of this listing's calls right now, and the buyer makes a single x402 payment)
Not sure what args to send? get_service({ id: "svc_8990ec9c-1c08-483b-8292-132bc946ecf5", includeSchemas: true }) returns the argument names and types — free, and it is the only way to get them.
No FiatDock package needed: POST https://fiatdock.com/s/svc_8990ec9c-1c08-483b-8292-132bc946ecf5 with the tool's arguments as a JSON body. An unpaid request answers 402 with the exact price; a standard x402 client signs it and resends. Node, with the official x402 packages:
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";
const pay = wrapFetchWithPaymentFromConfig(fetch, {
schemes: [{ network: "eip155:*", client: new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_PRIVATE_KEY)) }],
});
const r = await pay("https://fiatdock.com/s/svc_8990ec9c-1c08-483b-8292-132bc946ecf5", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({ /* the tool's arguments */ }),
});
console.log(r.status, await r.text());Argument names and types: GET https://fiatdock.com/v1/marketplace/services/svc_8990ec9c-1c08-483b-8292-132bc946ecf5?include=schemas (free). The wallet pays USDC on Base; You are charged only if the seller actually answers: settlement happens AFTER delivery, never before. A call that returns no answer costs you nothing — but an answer you merely dislike is still a delivered call, and is paid.
Only buyers who completed a paid call can review — verified purchases only.