INDIVIDUAL MCP TOOL

x402-authorization-handoff

Free handoff tool that generates a live PAYMENT-REQUIRED challenge for a concrete paid request, returns exact REST and MCP retry templates, and creates a correlation ID.

salt19.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://api.salt19.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for x402-authorization-handoff and invoke it with your own arguments.

Indexed input schema

{}

Risk classification

Potential side effects detected · medium confidence · heuristic, not a guarantee.

A tool name or description suggests a financial action.

Parent server

salt19.com

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.salt19-agent-utility-grid]
url = "https://api.salt19.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "salt19-agent-utility-grid": {
      "type": "http",
      "url": "https://api.salt19.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: salt19-agent-utility-grid
Remote MCP URL: https://api.salt19.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "salt19-agent-utility-grid": {
      "url": "https://api.salt19.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "salt19-agent-utility-grid": {
      "type": "http",
      "url": "https://api.salt19.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "salt19-agent-utility-grid",
  "transport": "streamable-http",
  "url": "https://api.salt19.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

Related tools

find-salt19-tool — FREE START-HERE ROUTER.
salt19-pricing — FREE catalog/pricing surface.
base-token-allowance — Read a live ERC-20 allowance on Base for an owner/spender pair without an API key.
base-token-balance — Read a live ERC-20 token balance on Base and return raw units plus best-effort token decimals/symbol metadata without signup or an API key.
base-transaction-status — Check current Base transaction receipt state and return PENDING, CONFIRMED_SUCCESS, or CONFIRMED_REVERTED with block and gas evidence.
base-wallet-balance — Read a wallet's live native ETH balance on Base at the latest block without an API key.
base-contract-state — Inspect whether a Base address currently has deployed bytecode and return code size plus best-effort ERC-20 metadata.
sec-recent-filings — Return recent SEC EDGAR filings for a company CIK from the live SEC submissions feed, normalized for agent consumption.