MCP server for AI agents
MCP server for AI agents: 28 tools (blockchain data, web scraping, ZK proofs, image generation, gift cards) payable per call in USDC on Base via x402. Send JSON-RPC tools/call requests.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.001listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.freeq.one/mcp
| Category | Image and media |
|---|---|
| Provider host | x402.freeq.one |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 12 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"id": 1,
"jsonrpc": "jsonrpc",
"method": "method",
"params": {}
},
"bodyType": "json",
"description": "MCP server for AI agents: 28 tools \u2014 blockchain, markdown/web extraction, ZK proof verification (Semaphore, World ID), QR/diagram/OG-image rendering, gift card purchase. Per-tool USDC pricing on Base.",
"mcpServerUrl": "https://x402.freeq.one/mcp",
"method": "POST",
"transport": "streamable-http",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"description": "JSON request body. See GET /tools for the parameter catalog.",
"properties": {
"id": {
"description": "Request id.",
"type": "number"
},
"jsonrpc": {
"description": "JSON-RPC version. Always \"2.0\".",
"type": "string"
},
"method": {
"description": "JSON-RPC method: \"tools/list\" (free) or \"tools/call\" (paid).",
"type": "string"
},
"params": {
"description": "For tools/call: { name: <tool>, arguments: {...} }. See /tools for the tool catalog.",
"type": "object"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"description": {
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"mcpServerUrl": {
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"toolName": {
"type": "string"
},
"transport": {
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"result": {
"description": "Tool output (JSON)"
}
},
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}