In-depth architectural comparison of the SCRIPTMASTERLABS — x402 Gateway and Agent Skills 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
SCRIPTMASTERLABS — x402 Gateway
Finance & Fintech · Remote HTTP/SSE
Quality: 76/100 (Great) | Auth: No auth required
Agent Skills
Finance & Fintech · Local stdio
Quality: 57/100 (Good) | Auth: OAuth 2.0
Verdict Summary: Choose SCRIPTMASTERLABS — x402 Gateway if you need specialized Finance & Fintech tools running via a hosted cloud SSE transport. Choose Agent Skills if your workspace requires Finance & Fintech integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
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Choose SCRIPTMASTERLABS — x402 Gateway when:
You need dedicated capabilities in the Finance & Fintech domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Freemium).
Remote MCP gateway for SCRIPTMASTERLABS x402-paid tools and agent-native API access on Base, with free capability discovery and pay-per-use execution.
200+ crypto tools for AI agents across 7 blockchains (Solana, Ethereum, Base, BSC, Polygon, Hedera, Bitcoin). Swaps, DeFi yield, conditional orders, NFTs, cross-chain bridges, and market intelligence. Hosted MCP at https://emblemvault.ai/api/mcp with OAuth 2.0 + PKCE for one-line install in Claude Code, Cursor, Windsurf, and any MCP-compatible client. API key and x402 per-tool-call micropayments also supported.
Tools & Capabilities Breakdown
SCRIPTMASTERLABS — x402 Gateway Tools (99)
sml_discover
Returns the complete ScriptMasterLabs product catalog — all 55 tools, prices, and payment instructions. Call this first. FREE.
sml_status
Real-time health check of all 8 SML backends simultaneously. Call before making paid requests to avoid wasted payments. FREE.
list_magnets
get_agent_magnet_beacons
get_beacon_score
get_beacon_passport
beacon_scout
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
SCRIPTMASTERLABS — x402 Gateway is categorized under Finance & Fintech and uses a remote streaming HTTP/SSE transport. In contrast, Agent Skills belongs to Finance & Fintech using local stdio subprocess. Select SCRIPTMASTERLABS — x402 Gateway when you need capabilities focused on finance & fintech and Agent Skills 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.
agentcard_lookup
agentcard_verify
agentcard_mint
+87 more tools listed on main page
Agent Skills Tools (6)
200+ crypto tools across 7 blockchains
Supports swaps, DeFi, NFTs, conditional orders, and cross-chain bridges
OAuth 2.0 + PKCE and API key authentication
x402 micropayment rails for per-tool-call payments
Native MCP server compatible with Claude Code, Cursor, Windsurf, Gemini CLI
Agent-to-Agent (A2A) protocol support for interoperability