x402 Pay — USDC API Payment Helper is an MCP server with 4 tools an agent can call, among them check_payment, check_status, list_paid_apis. It answers at https://squeezeos-api.onrender.com/mcp/x402-pay over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 10 September 2026; the last check, on 19 October 2026, succeeded.
Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
check_payment | Inspect an HTTPS URL for a live x402 402 challenge without sending payment. Inputs: url |
check_status | Check the live always-on SqueezeOS payment authority. |
list_paid_apis | List live SML x402 paid API operations from the canonical SqueezeOS OpenAPI document. Inputs: limit |
payment_info | Return the canonical ScriptMasterLabs x402 payment network and receiver. Never spends. |
Every block below points at https://squeezeos-api.onrender.com/mcp/x402-pay. Pick your client and copy.
claude mcp add --transport http x402-pay-usdc-api-payment-helper https://squeezeos-api.onrender.com/mcp/x402-pay
{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://squeezeos-api.onrender.com/mcp/x402-pay"]
}
}
}{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"url": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}{
"servers": {
"x402-pay-usdc-api-payment-helper": {
"type": "http",
"url": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}{
"context_servers": {
"x402-pay-usdc-api-payment-helper": {
"url": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"serverUrl": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"url": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}name: x402 Pay — USDC API Payment Helper
version: 0.0.1
schema: v1
mcpServers:
- name: x402 Pay — USDC API Payment Helper
type: streamable-http
url: https://squeezeos-api.onrender.com/mcp/x402-pay{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"httpUrl": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"type": "http",
"url": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}{
"mcpServers": {
"x402-pay-usdc-api-payment-helper": {
"url": "https://squeezeos-api.onrender.com/mcp/x402-pay"
}
}
}goose://extension?url=https%3A%2F%2Fsqueezeos-api.onrender.com%2Fmcp%2Fx402-pay&type=streamable_http&id=x402-pay-usdc-api-payment-helper&name=x402%20Pay%20%E2%80%94%20USDC%20API%20Payment%20Helper
It answered our last check on 19 October 2026 in 234 ms. Over 6 checks since 10 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
4, as returned by the server's own tools/list on 11 September 2026: check_payment, check_status, list_paid_apis, payment_info.
It answered our last check on 19 October 2026 in 234 ms. Over 6 checks since 10 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://squeezeos-api.onrender.com/mcp/x402-pay. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.scriptmasterlabs. Endpoint host: squeezeos-api.onrender.com. ARD identifier: urn:air:com.scriptmasterlabs:mcp:x402-pay.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.