# Agent Daily Brief \(one call\)

One MCP call returns 7-chain gas, ETH price, top 8 Polymarket markets and 5 Hacker News headlines. 0.01 via x402 on Base.

| | |
|---|---|
| Price | $0.01 per call, in USDC over x402 |
| Can be bought now | yes |
| Category | data |
| Seller | Mythos Agent Toolkit |
| Tools | 29 |
| Tags | crypto, gas, polymarket, news, snapshot, briefing |
| Listing page | https://fiatdock.com/service/svc_8990ec9c-1c08-483b-8292-132bc946ecf5 |
| Endpoint to call | <https://fiatdock.com/s/svc_8990ec9c-1c08-483b-8292-132bc946ecf5> |

## What it does

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.

## How to buy

```text
PAID ($0.01/call): call_service({ id: "svc_8990ec9c-1c08-483b-8292-132bc946ecf5", args }) — the 402 lists ONE x402 payment = the FULL price straight to the seller (FiatDock takes 0% of this listing's calls right now); the fiatdock-mcp npm package (AGENT_PRIVATE_KEY) pays it automatically. This remote /mcp returns the 402 challenge. You are charged only if the seller actually answers. To learn what to put in arguments, call get_service({ id: "svc_8990ec9c-1c08-483b-8292-132bc946ecf5", includeSchemas: true }) first — it returns toolSchemas (argument names and types). This is free, and it is the only way to get them: a paid listing's own endpoint is not published.
```

## Tools (29)

- `register`
- `credits`
- `buy_credits`
- `catalog`
- `time`
- `price_eth`
- `health`
- `web2md`
- `captcha_solve`
- `crypto_price`
- `gas_price`
- `token_security`
- `ip_lookup`
- `web_search`
- `screenshot`
- `polymarket`
- `gas_multi`
- `poly_markets`
- `hl_oi`
- `lending_yields`
- `token_rep`
- `chain_block`
- `poly_walls`
- `trench_radar`
- `monad_defi`
- `token_meta`
- `trending`
- `agent_brief`
- `token_verdict`

---

The same listing as JSON: https://fiatdock.com/v1/marketplace/services/svc_8990ec9c-1c08-483b-8292-132bc946ecf5 · the whole catalog: https://fiatdock.com/llms.txt