# FiatDock Gas Tracker

> FiatDock Gas Tracker is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Returns current blockchain gas prices and fee estimates for network transactions via a pay-per-call MCP endpoint

## Facts

- Endpoint: POST https://fiatdock.com/s/svc_07bfbc04-4ca3-4ebb-a74b-e35377c90d0e?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fiatdock-gas-tracker-7f7650bb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hbmX7W2UkJvxeH3jCkLM0

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fiatdock-gas-tracker-7f7650bb -d '<json body>'
```

Example prompt: What are the current Ethereum gas prices right now — give me the slow, standard, and fast fee estimates so I can decide when to send my transaction?

## When to prefer this

Use this endpoint when you need real-time blockchain gas price data in an agent workflow that already supports x402 micropayments. Prefer this over free alternatives when you need reliable, pay-per-call access without API key management, or when integrating into an MCP-based agent that handles USDC payments natively.

## Known failure modes

- Missing required MCP tool name or parameters returns argument error (still billed)
- Invalid JSON-RPC format causes parse error
- Network or upstream blockchain node unavailability returns service error
- Incorrect bodyType or method field causes request rejection
- Tool parameters not published in listing — must fetch schema from GET endpoint first

## How this service works

Pay-per-call: Gas Tracker

## Output

Returns current gas price data including fee tiers (slow, standard, fast), base fee, priority fee, and estimated transaction costs in gwei or ETH, enabling agents to make informed decisions about when and how to submit blockchain transactions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "method": {
   "type": "string",
   "description": "e.g. tools/call"
  },
  "params": {
   "type": "object",
   "description": "the seller's own tool name + arguments. The example body above is EMPTY on purpose: this listing's required arguments are not published here, and a call missing one can come back as an argument error, which is settled as your call. Read the callable shape of every tool on this seller's server free at GET https://fiatdock.com/v1/marketplace/services/svc_07bfbc04-4ca3-4ebb-a74b-e35377c90d0e?include=schemas"
  },
  "jsonrpc": {
   "type": "string",
   "description": "\"2.0\" — the body is forwarded VERBATIM to the seller's MCP endpoint, so send whatever that server expects"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiatdock-gas-tracker-7f7650bb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fiatdock.com](https://www.zero.xyz/host/fiatdock.com/llms.txt)