STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
service / x402-balance-d2099fde

Erc 8004 Agent Wallet Balance Check API

ERC-8004 agent wallet balance check. Returns the on-chain USDC balance (Base mainnet) for a registered ERC-8004 agent wallet.

uncertifiedrail · x402

Call card

https://api.limitguard.ai/v1/wallet/balance price $0.11 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-balance-d2099fde", "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-balance-d2099fde", "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 30d100.0%
buyers 30d0
last verifiednever
certified since-
2026-10-12: 100% ok2026-10-13: 100% ok2026-10-14: 100% ok2026-10-15: 100% ok2026-10-16: 100% ok2026-10-17: 100% ok

Daily probe success ratio, last 30 days. Last probed 2026-10-17.

Try it

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