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MCPFax Markets — On-Chain Token Prices
x402
MCPFax Markets — On-Chain Token Prices is a paid API for AI agents from mcpfax-markets.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Fetches current on-chain token prices for DeFi tokens, priced at $0.001 USDC per call via x402 micropayment on Base.
Price / call$0.005
Success—
StatusUnknown
How this service works
MCPFax markets — On-chain token prices (defi_token_prices). Price: $0.001 USDC per call on Base.
Output
Returns current on-chain price data for the requested DeFi token(s), including price in USD and associated token metadata, sourced from on-chain liquidity pools or aggregated DeFi price feeds.
Example use cases
Pre-trade token price check
“Before I swap, what's the current on-chain price of UNI token? Grab it from the DeFi token price feed so I can compare with what my DEX is showing.”
Portfolio valuation snapshot
“I hold AAVE, CRV, and MKR — can you pull the current on-chain prices for all three tokens so I can calculate today's portfolio value?”
Arbitrage price comparison
“What's the current on-chain price of LINK right now? I want to compare it against the CEX price to spot any arbitrage opportunity.”
Technical details
Endpoint
GEThttps://mcpfax-markets.bowling-anthony.workers.dev/defi/token-pricesWhen to prefer
Choose this endpoint when you need on-chain token price data for DeFi tokens, especially when you want prices sourced directly from decentralized liquidity rather than centralized exchange feeds. Ideal for agents performing DeFi trading decisions, portfolio valuation, or arbitrage detection where on-chain accuracy matters. Prefer this over CEX price APIs when working in a fully on-chain or DeFi context.
Side effects
- Unknown or unsupported token address returns an error or empty result
- Network congestion may cause stale or delayed price data
- Invalid token identifier format results in a bad request error
- Payment failure on Base network blocks the call
- Token with insufficient on-chain liquidity may return unreliable price
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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