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x402-gateway MCP Multi-Tool Gateway
x402
x402-gateway MCP Multi-Tool Gateway is a paid API for AI agents from x402.freeq.one, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Pay-per-call MCP gateway exposing 7 tools (markdown conversion, token price, wallet portfolio, whale alerts, cross-chain balance, changelog from OpenAPI, changelog from Git) with per-tool micropayments on Base via x402
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call MCP gateway: 7 tools (markdown, token_price, wallet_portfolio, whale_alerts, cross_chain_balance, changelog_openapi, changelog_git). Per-tool prices on Base via the Coinbase CDP x402 facilitator: markdown=$0.001, token_price=$0.0005, wallet_portfolio=$0.002, whale_alerts=$0.002, cross_chain_balance=$0.002, changelog_openapi=$0.005, changelog_git=$0.005. MCP flat rate $0.001.
Output
Depending on the tool called, the agent receives: clean LLM-ready markdown (from HTML), a token's current price, a structured wallet portfolio with balances, a list of recent whale alert transactions, cross-chain token balances for an address, or a human-readable changelog derived from an OpenAPI diff or Git history. Each response is returned after a successful x402 USDC micropayment on Base.
Example use cases
On-chain whale monitoring for DeFi
“Show me any large whale transactions happening right now for ETH using the whale_alerts tool — I want to know if any big moves are happening.”
Wallet portfolio snapshot across chains
“Fetch the full portfolio for wallet address 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe across all supported chains and tell me what tokens it holds and their current values.”
Changelog from Git commits
“Generate a changelog for my repo at github.com/myorg/myproject by reading the latest Git commits — summarize what changed in plain English.”
Technical details
Endpoint
POSThttps://x402.freeq.one/mcpWhen to prefer
Choose this endpoint when you need pay-per-call access to a curated set of crypto/blockchain and document-conversion tools without a subscription, and you want to pay only for what you use via USDC micropayments on Base using the x402 protocol. Ideal for agents that need on-chain data (wallet balances, token prices, whale alerts) combined with utility tools (HTML-to-markdown, changelog generation) in a single MCP-compatible gateway.
Side effects
- Payment failure: insufficient USDC balance or x402 payment rejected — returns 402 Payment Required
- Invalid wallet address format — returns error or empty result
- Unsupported token symbol — token price tool returns not-found error
- Invalid or inaccessible Git/OpenAPI URL — changelog tools return fetch error
- Rate limiting or upstream data source unavailability — returns 503 or timeout
- Malformed HTML input — markdown tool may return partial or empty output
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tool | string | Tool name (see GET /tools for the catalog) |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {}
}
}Tags
x402
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