service / x402-purchase-6d444e3e

x402 MCP Storefront

Base gas price now, base fee and priority fee in gwei, block time, congestion and utilization trend, ETH price USD, and the USD cost to settle an ETH transfer, USDC ERC-20 transfer, or x402 payment on Base mainnet — one settle-now-or-wait verdict with rationale. Full market briefing; for the per-transaction submit/fee call see /base/tx-decision. GET, no inputs, no API key; computed live from Base RPC blocks.

uncertifiedunhealthyrail · x402

Call card

https://x402-mcp.onrender.com/swarm/products/d22bbf5f3c4b4666a6f80980c7bc7c50/purchase price $0.05 per call

Your agent can call this

The slug below is exactly what invoke accepts. Addendpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-purchase-6d444e3e", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-purchase-6d444e3e", "endpoint": "<route_cards[].path>", "body": {}}'

Reliability

uptime 30d-
refund rate 7d-
settled calls0
failed calls0
certified since-
2026-07-27: 0% ok2026-07-28: 0% ok2026-07-29: 0% ok2026-07-30: 0% ok2026-07-31: 0% ok2026-08-01: 0% ok2026-08-02: 0% ok2026-08-03: 0% ok2026-08-04: 0% ok2026-08-05: 0% ok2026-08-06: 0% ok2026-08-07: 0% ok2026-08-08: 0% ok2026-08-09: 0% ok2026-08-10: 0% ok2026-08-11: 0% ok2026-08-12: 0% ok2026-08-13: 0% ok2026-08-14: 0% ok2026-08-15: 0% ok2026-08-16: 0% ok2026-08-17: 0% ok2026-08-18: 0% ok2026-08-19: 0% ok2026-08-20: 0% ok2026-08-21: 0% ok2026-08-22: 0% ok2026-08-23: 0% ok2026-08-24: 0% ok2026-08-25: 0% ok

Daily probe success ratio, last 30 days. Last probed 2026-08-25 (last probe failed).

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.