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service / x402-arc-bridge-cb7f3365

Arc Bridge API

What it really costs to bring USDC into Arc over Circle CCTP, measured from arrivals rather than quoted. Every arrival we hold with its recipient, the amount credited, the fee CCTP took and the transaction, plus observed fees grouped by transfer size. Read from MintAndWithdraw on TokenMessengerV2 0x28b5a0e9C621a5BadaA536219b3a228C8168cf5d, whose event signature we verified by hashing it rather than assuming it, and filtered to the USDC contract on every single log.

uncertifiedrail · x402

Call card

https://apexfaucet.xyz/api/x402/arc-bridge price $0.004 per call

Your agent can call this

The slug below is exactly what invoke accepts. Add endpoint (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-arc-bridge-cb7f3365", "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-arc-bridge-cb7f3365", "endpoint": "<route_cards[].path>", "body": {}}'

Trust graph

Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.

success rate 30dnot enough calls yet
settled calls0
failed calls0
refund rate 7d-
uptime 30d97.0%
buyers 30d0
last verifiednever
certified since-
2026-09-27: 100% ok2026-09-28: 100% ok2026-09-29: 100% ok2026-09-30: 100% ok2026-10-01: 100% ok2026-10-02: 100% ok2026-10-03: 100% ok2026-10-04: 50% ok2026-10-07: 100% ok2026-10-08: 100% ok2026-10-09: 100% ok2026-10-10: 100% ok2026-10-11: 100% ok

Daily probe success ratio, last 30 days. Last probed 2026-10-11.

Try it

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