> ## Documentation Index
> Fetch the complete documentation index at: https://developers.circle.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Before reading these docs, install the relevant Circle Skill to get pre-loaded context — skills are LLM-optimized and cover architecture decisions, correct flows, and common pitfalls. In Claude Code: run /plugin marketplace add circlefin/skills then /plugin install circle-skills@circle. With Vercel Skills CLI: run npx skills add circlefin/skills. Available skills: use-usdc https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-usdc/SKILL.md (balances, transfers, approvals on EVM and Solana); EURC has no skill — see https://developers.circle.com/stablecoins/what-is-eurc.md; bridge-stablecoin https://github.com/circlefin/skills/blob/master/plugins/circle/skills/bridge-stablecoin/SKILL.md (crosschain transfers via CCTP, USDC, EURC, and third-party assets); use-arc https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-arc/SKILL.md (Arc chain config, contract deployment, USDC bridging — Arc docs: https://docs.arc.io/llms.txt); use-circle-wallets https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-circle-wallets/SKILL.md (choose wallet type); use-developer-controlled-wallets https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-developer-controlled-wallets/SKILL.md (custodial wallets for payouts and treasury); use-user-controlled-wallets https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-user-controlled-wallets/SKILL.md (embedded wallets with Web2 login); use-modular-wallets https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-modular-wallets/SKILL.md (smart contract wallets with passkeys and ERC-4337); use-gateway https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-gateway/SKILL.md (unified USDC balance, nanopayments); use-smart-contract-platform https://github.com/circlefin/skills/blob/master/plugins/circle/skills/use-smart-contract-platform/SKILL.md (deploy, interact, monitor contracts). Pair any skill with the Circle MCP server for live SDK signatures, contract addresses, and chain IDs: {"mcpServers":{"circle":{"url":"https://api.circle.com/v1/codegen/mcp"}}}.
> Read the product overview first. Each product has an overview explaining when and why to use it. Read it before quickstarts.
> Pick the right wallet type. Developer-controlled (you hold keys), user-controlled (end user holds keys via PIN/social login), or modular (smart contract wallets with passkeys). See https://developers.circle.com/wallets.md.
> Use CCTP V2 for crosschain transfers. CCTP natively transfers USDC and EURC via burn-and-mint, and supports permissionless wrapping of third-party assets via lock-and-mint. V1 is legacy; always use V2 unless V1 is specified or the chain requires it (Noble, Sui, and Aptos still require V1). Migration guide: https://developers.circle.com/cctp/migration-from-v1-to-v2.md.
> Use Bridge Kit for frontend bridging. Wraps CCTP with a simpler SDK for user-facing apps. Use CCTP directly for backend transfers.
> Gas Station vs Paymaster. Gas Station sponsors gas for Circle Wallet transactions. Paymaster lets users pay gas in USDC. Different use cases — read both overviews.
> Gateway Nanopayments for sub-cent payments. Gasless USDC micropayments down to $0.000001 via x402 and batched settlement. For pay-per-request APIs, AI agent payments, streaming.
> Look up USDC addresses per chain. Never hardcode — use https://developers.circle.com/stablecoins/usdc-contract-addresses.md.
> Prefer SDKs over raw API calls. Node.js and Python SDKs handle auth, retries, and errors.
> API key required. Bearer token in Authorization header. Testnet and mainnet use separate keys and may use different base URLs depending on the product.
> Set up webhooks when available. Most operations are async. Webhooks deliver transaction confirmations and state changes.
> When calling list endpoints, paginate using pageSize and pageAfter until no nextPageAfter cursor is returned—stopping at the first page silently misses records.
> Building an AI agent? Start with the Agent Stack—Circle CLI, agent wallets, and nanopayments built for autonomous use cases: https://developers.circle.com/agent-stack.md.

# How-to: Monitor your account

> Call GET /v1/match/account to check your Match balance and activity totals, and learn when to use order records instead.

The Match account endpoint returns a snapshot of your balance and a summary of
burn, mint, and fee activity. Use this snapshot for quick checks before placing
orders. For exact figures, use your order and settlement records. This guide
shows you how to read each field and when to use each data source.

## Prerequisites

Before you begin, ensure that you've:

* Obtained a Circle API key with Match access
* Completed onboarding as a burn-side or mint-side participant (or both)

## Steps

### Step 1. Retrieve your account summary

Call `GET /v1/match/account` to fetch your current balance and activity totals.

```bash theme={null}
curl -X GET https://api-sandbox.circle.com/v1/match/account \
  -H "Authorization: Bearer $API_KEY"
```

A successful response has the following structure:

```json theme={null}
{
  "data": {
    "accountId": "550e8400-e29b-41d4-a716-446655440000",
    "usdc": {
      "available": { "amount": "4000.00", "currency": "USD" },
      "reserved": { "amount": "1000.00", "currency": "USD" },
      "total": { "amount": "5000.00", "currency": "USD" }
    },
    "exposure": {
      "activeOrderCount": 3,
      "mintOrderCount": 2,
      "burnOrderCount": 1
    },
    "activity": {
      "from": "2026-07-18T00:00:00Z",
      "to": "2026-08-17T00:00:00Z",
      "totalMatched": { "amount": "18000.00", "currency": "USD" },
      "rebatesEarned": { "amount": "50.00", "currency": "USD" },
      "feesPaid": { "amount": "0.00", "currency": "USD" }
    }
  }
}
```

### Step 2. Interpret the balance fields

The `usdc` object reflects your Match USDC position at the time of the request.
For a detailed explanation of how these balances relate to the funding model,
see [Funding model](/circle-match/concepts/funding-model).

| Field | Description |
| - | - |
| `usdc.total` | Your full Match USDC balance, including any amount currently reserved by open orders. Applies to mint-side participants only. |
| `usdc.reserved` | The portion of `usdc.total` held by resting orders. Not available for new orders or withdrawals until the orders settle or are canceled. |
| `usdc.available` | `usdc.total` minus `usdc.reserved`. This is the balance you can use when placing new mint orders or initiating a withdrawal. |
| `exposure` | Order count breakdown: `activeOrderCount` (total), `mintOrderCount`, `burnOrderCount`. |

### Step 3. Interpret the `activity` window

The `activity` object shows matched volume and fee figures for a rolling
reporting window. The window boundaries are provided in the `from` and `to`
fields.

| Field | Description |
| - | - |
| `from` | Start of the reporting window (inclusive). |
| `to` | End of the reporting window (inclusive). |
| `totalMatched` | Total USD amount matched during the window. |
| `rebatesEarned` | Total rebates received. Nonzero for mint-side participants who received a rebate at clearing. |
| `feesPaid` | Total fees paid. Nonzero for burn-side participants who paid the clearing fee. |

<Warning>
  The account summary is a **best-effort snapshot**. Field values may not reflect a single point in time. Different fields can be computed at slightly different moments. Activity figures (`activity.totalMatched`, `activity.rebatesEarned`, `activity.feesPaid`) may appear before settlement clears in your bank account or wallet.

  **Do not use the account summary for reconciliation or audits.** For exact
  figures, use your order records (`GET /v1/match/orders`) and settlement records.
</Warning>

## When to use each data source

| Use case | Data source |
| - | - |
| Check whether you have enough balance before placing an order | Account summary (`GET /v1/match/account`) |
| Display rough balance and activity stats on a dashboard | Account summary (`GET /v1/match/account`) |
| Reconcile activity against bank statements | Order records and settlement records |
| Produce an audit trail | Order records and settlement records |
| Make any decision requiring an exact, authoritative figure | Order records and settlement records |

For event-driven monitoring without polling, subscribe to real-time account and
order updates over WebSocket. See
[Subscribe to real-time updates](/circle-match/howtos/subscribe-to-real-time-updates).