A side-by-side look at the Quietforge x402 Tools and SCRIPTMASTERLABS — x402 Gateway MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Quietforge x402 Tools for finance & fintech work; choose SCRIPTMASTERLABS — x402 Gateway for finance & fintech over a hosted endpoint. You can also run both side by side in one mcpServers block.
x402_search, x402_service, x402_index_stats.sml_discover, sml_status, x402_contract.Rows where the two servers differ are marked.
| Spec | Q Quietforge x402 Tools | S SCRIPTMASTERLABS — x402 Gateway |
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 53/100 · Good | 76/100 · Great |
| Install command | Not confirmed yet | Confirmed |
| Transport | — | Remote HTTP/SSE |
| Auth | No auth required | No auth required |
| Pricing | Free | Freemium |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Verified |
| GitHub stars | 0 | — |
| Directory activity | 0 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 7 | 3 |
| Full listing | View Quietforge x402 Tools | View SCRIPTMASTERLABS — x402 Gateway |
x402_searchUse this to find a pay-per-call x402 API for a given task, network or price cap before calling it (mostly USDC on Base; check each row's network and asset, some are testnet or other assets). Searches a health-probed directory of live x402 pay-per-call HTTP endpoints on Base, Solana and other networks (x402_index_stats gives the current count). Returns id, resource URL, method, network, USD price, description, 30-day call/payer counts and our own uptime/probe data. Data is re-crawled a few times a day, not real-time. Quietforge operates this directory and also operates some listed endpoints (source=quietforge) under the same per-host cap as every operator; ordering is by 30-day usage, then liveness, then freshness, never by operator.x402_serviceUse this to check whether one endpoint from x402_search is reliable enough to pay: its record plus its last 20 health probes (status code, latency, alive) and uptime across them.x402_index_statsUse this to see how much this index covers (it is a subset of the x402 market, not all of it) and to sanity-check x402_search coverage before relying on it. Summary of the index: totals, how many endpoints answered on the last probe, counts per network and per source, and when the crawl ran.x402_demandUse this to answer "is anyone actually paying for x402 APIs today" with settled on-chain numbers instead of listings. Market-level demand signal for the x402 ecosystem, verified against on-chain USDC settlement on Base rather than self-reported call counts: how many seller addresses were paid in the last 24h, total USD settled, and the distribution of sellers by payment count. Free and aggregate-only; the per-seller breakdown (distinct payers per address; payer counts include sampler/grader wallets that pay many sellers once, so read them as an upper bound on customers) is the paid GET /v1/x402/demand route. Refuses to answer rather than serve a stale snapshot.x402_probeUse this to check a URL you are about to pay (or one you operate) for a well-formed x402 challenge before sending funds; a challenge is no guarantee the service delivers. Makes ONE live unpaid request to a public http(s) URL and reports whether it is an x402 endpoint: status code, latency, alive flag, whether a PAYMENT-REQUIRED challenge came back and the parsed USD price. GET only, except that a URL already in the index is probed with its listed method. Public hosts only (redirects re-checked), delisted hosts never contacted, results cached 60 s, 3 probes per host per 5 min and 30 per minute overall.sudoku_puzzleUse this when a user wants a sudoku to play or print, or an app needs a verified puzzle at a named difficulty. Generates ONE sudoku puzzle with a unique solution, 180-degree symmetry, graded by the solving techniques it needs (easy | medium | hard | expert). Returns 81-char puzzle and solution strings (row by row, 0 = empty), given count and technique list. Deterministic when a seed is supplied. 20 per minute shared by all clients.quietforge_pricingPrice-check Quietforge's paid x402 HTTP routes before paying (free read-only list, not tools here): convert docx, xlsx, pptx, csv to pdf; PDF text; URL/HTML to PNG; sudoku books; manuscript typesetting; crosswords; family trees from GEDCOM; dataset quality audits; x402 index API. USD prices, pay-to address, how an x402 client pays.sml_discoverFind the x402 Gateway contract and where to inspect fresh payment requirements. FREE.sml_statusCheck the public x402 Gateway identity and canonical payment rail. FREE.x402_contractInspect the canonical x402 payment contract. Returns network, USDC asset, payTo, headers, and the rule for resolving fresh target requirements. FREE.Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
No confirmed install command for Quietforge x402 Tools yet — follow the setup steps linked from its listing page rather than a guessed package name.
{
"mcpServers": {
"scriptmasterlabs-x402-gateway": {
"url": "https://mcp-x402.onrender.com/mcp"
}
}
}