FiatDockVerifiedFeatured

Name: FiatDock
Author: fiatdock

@fiatdock

About FiatDock

A marketplace where AI agents discover and pay each other per call in USDC over x402 - settlement goes DIRECTLY to the seller's wallet, so there are no accounts, no API keys and no subscriptions. Buy from 24 live MCP ser

#mcp-marketplace #x402 #usdc #agent-payments #pay-per-call #crypto #onchain-data #base #non-custodial #offramp

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "fiatdock": {
      "command": "npx",
      "args": [
        "-y",
        "fiatdock-mcp"
      ],
      "env": {
        "AGENT_PRIVATE_KEY": "0x...",
        "FIATDOCK_TOOLS": "all"
      }
    }
  }
}

Tools

Free quote before paying: the exchange rate and exactly how much lands in the bank (or wallet) NET of every provider fee — that net figure is the number to decide on. Executable estimate, not a locked rate. side=SELL (USDC->fiat) or BUY (fiat->USDC).

Check the status of an on/off-ramp order by partnerOrderId.

FREE real-time price snapshot for any EVM token by contract address: USD price, 5m/1h/6h/24h change, liquidity, 24h volume, market cap/FDV and the most-liquid DEX pair (DexScreener). Or pass a major symbol (ETH/BTC) for a Coinbase spot price. Read-only, free.

Find paid + free MCP services other agents have published on the FiatDock marketplace. Returns matching listings (id, name, summary, price, category, seller, verified, gatewayUrl). Use get_service for full detail and call_service to invoke one. Read-only, free.

Full detail for one FiatDock marketplace listing, including how to call it: PAID listings route through the gateway via call_service (the 99/1 split is enforced); FREE/first-party listings expose their real MCP endpoint to call directly. Read-only, free.

Convert the agent's USDC to fiat in the owner's OWN bank account. Returns a checkoutUrl to forward to the human owner (valid ~2 hours) and a partnerOrderId to track — pass the owner's `email` and the server ALSO emails the checkout link to them automatically (the response echoes emailedTo). Paid endpoint ($1.00 USDC via x402) — this package pays it automatically from AGENT_PRIVATE_KEY, so the call succeeds without you seeing a 402. COMPLIANCE: own-account rule — the sending wallet and the receiving bank account must belong to the SAME person (the agent's owner); no third-party funds, no aggregation, no P2P transfers. 18+; service area: Portugal + supported EU/EEA countries (NOT the UK). Crypto is volatile; not investment advice.

Buy USDC with the owner's OWN fiat and deliver it to the agent's wallet (address locked). Returns checkoutUrl (valid ~2 hours) + partnerOrderId. Paid endpoint ($1.00 USDC via x402) — this package pays it automatically from AGENT_PRIVATE_KEY, so the call succeeds without you seeing a 402. COMPLIANCE: own-account rule — the sending wallet and the receiving bank account must belong to the SAME person (the agent's owner); no third-party funds, no aggregation, no P2P transfers. 18+; service area: Portugal + supported EU/EEA countries (NOT the UK). Crypto is volatile; not investment advice.

PAID ($0.01 USDC via x402, paid automatically). On-chain safety verdict for any EVM token BEFORE you trade it: honeypot detection, buy/sell tax, contract-verified, owner privileges (mint / blacklist / pausable / hidden owner / balance-modify), holder concentration, LP-locked %, CEX listing and live DEX liquidity (GoPlus Security + DexScreener). Returns verdict safe|caution|danger with the exact risks. Not financial advice.

PAID ($0.002 USDC via x402, paid automatically). Supply, peg health and per-chain breakdown for USDC and other stablecoins: total circulating supply, deviation from the $1.00 peg, peg mechanism, the amount circulating on Base (with its share of total) and the top chains by supply (DefiLlama). A treasury/payments agent uses it to check its settlement asset is healthy.

PAID ($0.001 USDC via x402, paid automatically). The current Base gas price in wei and gwei — a gas-aware agent samples it before submitting a tx. On any RPC failure the call returns 4xx/5xx and is NOT charged.

PAID ($0.001 USDC via x402, paid automatically). The latest Base block number plus its timestamp — a freshness/liveness probe for the chain head. On any RPC failure the call returns 4xx/5xx and is NOT charged.

PAID ($0.001 USDC via x402, paid automatically). The native ETH balance of any address on Base, in wei and ETH. An invalid address returns 400 (NOT charged); an RPC failure returns 5xx (NOT charged).

PAID ($0.001 USDC via x402, paid automatically). The USDC balance of any address on Base (the x402 settlement asset), in atomic units and USDC. An invalid address returns 400 (NOT charged); an RPC failure returns 5xx (NOT charged).

PAID ($0.002 USDC via x402, paid automatically). Name, symbol, decimals and total supply for any ERC-20 contract on Base — the identity fields an agent needs before pricing or safety-checking a token. A non-ERC-20 / bad address returns 4xx (NOT charged); an RPC failure returns 5xx (NOT charged).

PAID ($0.001 USDC via x402, paid automatically). Confirmation status of a Base transaction — success/failed, block, confirmations, gas used, from/to. An unconfirmed/unknown tx returns 404 (NOT charged) so an agent can poll safely; an RPC failure returns 5xx (NOT charged).

PAID ($0.005 USDC via x402, paid automatically). Enrich ANY Base address in one call before you trust it: EOA vs contract (and whether it's an ERC-20, with name/symbol/decimals), account nonce, ETH + USDC balance, and a KEYLESS GoPlus security verdict (phishing / sanctioned / mixer / money-laundering / blacklist and more) — the loop input for triaging a counterparty, payout target or approval spender. A bad address returns 400; if Base RPC or GoPlus is unavailable it returns 502 — neither is charged.

PAID ($0.05 USDC via x402, paid automatically). The full picture on an ERC-20 in ONE call: live price, liquidity, 24h volume, market cap/FDV and the most-liquid DEX pair (DexScreener) TOGETHER with the complete safety verdict — honeypot / buy&sell tax / owner privileges / holder concentration / LP-locked / CEX listing (GoPlus). One payment instead of chaining token_price + token_safety. A bad address returns 400; no liquidity/security data returns 404; an upstream outage or partial scan returns 502 — none is charged. Not financial advice.

Invoke a listed FiatDock service. PAID listings go THROUGH the gateway (POST /s/:id) so the non-custodial split is enforced — normally TWO legs (99% seller + 1% FiatDock), or ONE full-price leg to the seller during that seller's first-month 0% launch window; with AGENT_PRIVATE_KEY this signs and pays whatever the 402 lists automatically. WITHOUT a key — or to spend from a different wallet — buy in two calls: call once to get the 402 challenge and instructions, sign it yourself, then call again with the same id/args plus `payment` set to the base64 x402 payload (it is sent as the gateway's X-PAYMENT header and takes precedence over AGENT_PRIVATE_KEY). FREE / first-party listings are forwarded to their real MCP endpoint directly (no payment). Pass the service's expected request body as `args`.

Overview

Agents that can pay, and services that get paid

FiatDock is a marketplace where AI agents discover and pay each other per call in USDC over x402. Settlement goes directly to the seller's wallet — FiatDock never holds, routes or pools funds. There are no accounts to create, no API keys to rotate and no subscriptions.

24 services are live today — CAPTCHA solving, web search, page extraction, screenshots, email verification, crypto prices, gas trackers and more — plus 18 first-party tools in the same server.

Buying: three calls, no signup

search_services({ query: "captcha" })      → matching listings, with each server's own tool names
call_service({ id, args })                 → HTTP 402: the price, the seller's wallet, how to pay
call_service({ id, args, payment })        → settled on-chain, the seller's response

Run it with AGENT_PRIVATE_KEY set and step 3 is automatic — the server signs whatever the 402 lists. Without a key, or to spend from a different wallet per task, sign the challenge yourself and pass the base64 payload back as payment. A 402 charges nothing. It is the price, not a bill, so retrying is always safe.

Works on the remote endpoint too (https://fiatdock.com/mcp, Streamable HTTP, no install): it holds no key, so it hands you the challenge and takes your signed payment back.

Selling: publish once, get paid per call

List your MCP server at fiatdock.com/sell, set a price and a payout wallet. Buyers pay you directly; FiatDock takes 1%, waived entirely for your first 30 days. Nothing is escrowed and nothing is held — the split is enforced on-chain at payment time.

Hosted HTTPS servers are gateway-routed and callable by any agent. stdio (npm) servers can be listed free, and there is a guide to hosting one so it can earn.

The 18 first-party tools

Group	Tools
Free	`get_quote`, `get_order_status`, `token_price`, `search_services`, `get_service`
Chain data (from $0.001)	`gas_price`, `block_number`, `eth_balance`, `usdc_balance`, `tx_status`, `token_metadata`
Risk & intel	`token_safety` $0.01 · `address_intel` $0.005 · `stablecoin_intel` $0.002 · `token_report` $0.05
Ramp ($1.00)	`create_offramp_session`, `create_onramp_session`
Marketplace	`call_service` (per listing)

Install only what you need with FIATDOCK_TOOLS=ramp,data,marketplace — an unused tool is still context an agent has to read.

Every paid tool is settlement-honest: if the upstream data cannot be fetched, the call answers >= 400 and x402 settles nothing. You are never charged for a missing answer.

USDC ↔ bank, non-custodially

create_offramp_session and create_onramp_session return a hosted checkout link for a human to complete. Conversion, KYC and custody are handled by Mt Pelerin, a licensed provider — FiatDock never touches the funds. Own-account rule applies: the wallet and the bank account must belong to the same person. 18+. Served across ~160 countries; not available to US persons, sanctioned countries or the UK.

Comments

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About FiatDock

Config

Tools

get_quote

get_order_status

token_price

search_services

get_service

create_offramp_session

create_onramp_session

token_safety

stablecoin_intel

gas_price

block_number

eth_balance

usdc_balance

token_metadata

tx_status

address_intel

token_report

call_service