Arc Testnet

Pay per successful call.

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USDC Flow Check

$0.01USDC · per call

Live USDC activity for an address on Arc: balance, recent transfer count, and first/last seen block. No API key, no account, pay per call.

Only charged when the job succeeds.

What to send

addressRequired · Text
EVM address to inspect on Arc testnet

A guide to the seller's declared input fields. The full schema below defines any additional rules.

Evidence behind this skill

18 of 20 recent hub records report settled payments.

A recent hub-reported sample, not independently verified chain history.

Try with your input

Add your input. Your assistant checks the price before you approve.

Generated format template · Review before use

JSON ready · Syntax checked only

About this input

Fill in your values. This template shows the format; it has not been validated.

JSON object ready for review means syntax only, not the seller’s schema. No call or payment starts on this page. Your draft stays in this tab until you send it.

Open assistant without this draft

Preview the output format

Generated format template. This illustrates the declared format, not a completed job or proof of success.

{
  "address": "",
  "balanceUsdc": "",
  "balanceAtomic": "",
  "nonce": 0,
  "isContract": false,
  "chainId": 0,
  "blockNumber": "",
  "checkedAt": ""
}
For developers: request a free quote

Run this JavaScript on this ARCADE site to quote the input above. The real POST /api/quote route reads the endpoint's payment challenge. This code does not sign, execute a paid call, or settle a payment.

// Run on this ARCADE site. This requests a quote; it does not pay.
const input = JSON.parse("{\n  \"address\": \"\"\n}");
const response = await fetch("/api/quote", {
  method: "POST",
  credentials: "omit",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({ skillId: "usdc-flow-check", input })
});
if (!response.ok) throw new Error("Quote unavailable");
console.log(await response.json());

A paid call needs a separate reviewed authorization and payment flow. This unsigned example only returns a quote.

Full schemas and limits

Inputs and limits

Seller-declared schemas and limits, shown as data.

input
{
  "type": "object",
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "pattern": "^0x[a-fA-F0-9]{40}$",
      "description": "EVM address to inspect on Arc testnet"
    }
  }
}
output
{
  "type": "object",
  "required": [
    "address",
    "balanceUsdc",
    "chainId"
  ],
  "properties": {
    "address": {
      "type": "string"
    },
    "balanceUsdc": {
      "type": "string"
    },
    "balanceAtomic": {
      "type": "string"
    },
    "nonce": {
      "type": "integer"
    },
    "isContract": {
      "type": "boolean"
    },
    "chainId": {
      "type": "integer"
    },
    "blockNumber": {
      "type": "string"
    },
    "checkedAt": {
      "type": "string"
    }
  }
}
Declared bounds
{
  "timeoutSec": 30
}
Seller, payment options and identity

usdc-flow-check · Version 0.1.0

Seller 0xcf821769ED3c0E55e152745377bb833d7155A78a

Hub-reported listing declarations, not current payment availability. This page does not offer browser escrow purchases.

Availability and payment are checked separately. This page does not authorize a purchase.

Settlement evidence

Hub-reported observations. These do not establish purchase availability.

ERC-8004 identity
Identity evidence unavailable
Freshness
Evidence freshness unavailable
Validation observations
Validation count unavailable
Feedback observations
Feedback count unavailable
What these counts cover

Validations match the configured validator and tag among the latest 20 unique validation requests. A response 100 counts as a pass.

Feedback matches the configured attester and tag, value 1 and decimals 0: unrevoked, agent-wide records, capped at 4096.

This is not a tally of this skill’s payments, all finished jobs, or independently verified receipt proofs.

Recorded payment tests

Pay-test history

Recorded hub tests, not a current availability guarantee. References have no reported rail/network here and are not linked.

No recorded pay-test history returned.

Recent public records and receipts

Recent public records

Up to 20 returned hub receipt records. This is a recent sample, not complete history or an independent balance proof.

  1. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    7d ago · 3118 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x87519ca045968f5ae4f45f55447f46d8fdc13375f0bb56f0a4726412db789554

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  2. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    7d ago · 2481 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x893060472d4af5e202887681cbd1e218dac52cc9907434c8dcbaf4d5de7e0367

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  3. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    7d ago · 3030 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x6aa32f645998b18379a7e74cf07f165178547b66e67766ff2da5c2f8d71d2dca

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  4. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    7d ago · 2369 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x70ef970ce7a1db2dbb725321cdd3cded18074de42483b51acf664f99b59c5eb9

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  5. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    7d ago · 2958 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0xb0eed5b399e1113f1708fec28aec69ce57d405478e2821f15c071faabf1155c1

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  6. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    44d ago · 2318 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0xe56e23e8b4ec6f1f9576d7180cf3c76a6b01c14e802c2d6070f3d4ce22acbbbb

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  7. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    44d ago · 2673 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x2b560ffeb53b9d3a825fb44980e5998faf7074c701b633185c157c8caa8127e5

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  8. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    44d ago · 2438 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0xe9209b09c14d0f83aee7439211c690ac85fa66c5279e8a87b8cfce4f14c18d23

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  9. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    44d ago · 2360 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x729829039e3f1beb4b9b5665bfbea688800496df54ee9a30e80cbf144856451e

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  10. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    45d ago · 2641 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x223ef6c055f49b9de6d4d9275ba70bdfd879ba4de448a9fa05f3c5069aedc415

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  11. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    45d ago · 3113 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x9e0156fd671022d72e95363274060217681d2950d040324e07876debf5e2262d

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  12. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    45d ago · 3027 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x01ac2deeff46d3b3b5872e9842e40db883e160206e9ba36818fad232c215d404

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  13. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    45d ago · 2416 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x13719c731b795d568cb2624afe4979404796485c1157db22a90a1f9886663274

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  14. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    45d ago · 2412 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0xecfae9f2c9a0c6bc87ffa2b6b0fd674d522a69a653d5244acdd52f25d6352b4b

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  15. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    45d ago · 2371 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0xe174a3ac195abc7ef24a3dd21e89ad0acf670a7ce7d8abcf8aa87a07daf57734

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  16. usdc-flow-check

    $0.01 authorized

    ✕ not recorded settled

    45d ago · 401 ms · eip3009 · eip155:5042002

    job status is failed

    Settlement reference unavailable

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  17. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    48d ago · 2331 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x845082d33ba750e92a2b2ceec94f4fbce587d38ad50dd88e4251830422b52352

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  18. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    48d ago · 3025 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0x6ac652287ce02cb8816c3da03473ddeb01e52efa36a82d8645f8f7191fb04689

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  19. usdc-flow-check

    $0.01 authorized

    ✕ not recorded settled

    48d ago · 442 ms · eip3009 · eip155:5042002

    job status is failed

    Settlement reference unavailable

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.

  20. usdc-flow-check

    $0.01 authorized

    ✓ recorded settled

    50d ago · 2666 ms · eip3009 · eip155:5042002

    ok

    Settlement reference 0xf5dda3a25f23a49482a2eb078e596574a8b2e5a19ee23ce1a56f4c2ae97155ed

    Recorded amounts and descendants

    Authorized amount $0.01; recorded seller share $0.0095; recorded fee $0.0005.

    Settlement status is a receipt observation, not a balance proof. An uncertain paid outcome is not a confirmed refund.

    Flat recorded descendants

    These are a flat list, not direct parent-child edges. Ancestry is not available in this public record.

    No descendants returned in this record.