Agent Discovery MCP vs SCRIPTMASTERLABS — x4… | AllMCPs
Side-by-Side Model Context Protocol Comparison
Agent Discovery MCP vs SCRIPTMASTERLABS — x402 Gateway
In-depth architectural comparison of the Agent Discovery MCP and SCRIPTMASTERLABS — x402 Gateway MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Agent Discovery MCP
Finance & Fintech · Remote HTTP/SSE
Quality: 57/100 (Good) | Auth: other
SCRIPTMASTERLABS — x402 Gateway
Finance & Fintech · Remote HTTP/SSE
Quality: 76/100 (Great) | Auth: No auth required
Verdict Summary: Choose Agent Discovery MCP if you need specialized Finance & Fintech tools running via a hosted cloud SSE transport. Choose SCRIPTMASTERLABS — x402 Gateway if your workspace requires Finance & Fintech integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Agent Discovery MCP when:
You need dedicated capabilities in the Finance & Fintech domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: TEST_WALLET_KEY.
Agent Discovery MCP is categorized under Finance & Fintech and uses a remote streaming HTTP/SSE transport. In contrast, SCRIPTMASTERLABS — x402 Gateway belongs to Finance & Fintech using remote streaming HTTP/SSE transport. Select Agent Discovery MCP when you need capabilities focused on finance & fintech and SCRIPTMASTERLABS — x402 Gateway when you require tools for finance & fintech.
FREE. The agent-magnet report: proves whether SML is actually being discovered and paid by real strangers/AI agents right now (real traffic + payment data, not projected), confirms SML's own discovery surface is reachable, and lists real, named external discovery targets worth getting listed on.
apm_negotiate
Agent Preference Manifest (APM) — tell SML what you NEED and get back the exact LIVE tool(s) that match, instead of guessing across the catalog and burning tokens. mode='preview' (FREE) returns match count + best category. mode='contract' (PAID $0.02) returns the full ranked plan with prices, live-status on every match, brokerage terms, and a price-locked signed quote.
apm_execute
Execute a tool recommended by apm_negotiate under its price-locked signed quote, collecting the agreed brokerage. Pass the quote's `canonical` + `signature` (from the Service Capability Contract), the tool name, and any args (e.g. `symbol`). Charges the locked price + brokerage, runs the tool, returns the result. Requires APM_QUOTE_SECRET on the gateway.
Minimal MCP server (250 lines TS) for ERC-8004 agent discovery + x402 payment. Three tools: findagentsbyskill (via 8004scan public API), getagentcard, callagentwithpayment using Coinbase's official x402-fetch. Direct EOA signing — no smart account, no bundler, no relay. Works with Claude Code, OpenClaw, Cursor, Cline. USDC on Base/Ethereum + testnets, MIT.
Remote MCP gateway for SCRIPTMASTERLABS x402-paid tools and agent-native API access on Base, with free capability discovery and pay-per-use execution.