Webhook Event Reference

All webhook events share the same envelope format:

{
  "id": "evt_accounts.created:usr_abc123",
  "type": "accounts.created",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": { ... }
}

Field	Type	Description
`id`	string	Event id
`type`	string	Event type (dot notation)
`createdAt`	string	ISO 8601 timestamp
`data`	object	Event-specific payload

accounts.created

Fired when a new user is created in your app (first authentication).

{
  "id": "evt_accounts.created:usr_abc123",
  "type": "accounts.created",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": {
    "userId": "usr_abc123",
    "appId": "app_xyz",
    "createdAt": "2026-04-09T18:15:03.000Z",
    "email": "user@example.com"
  }
}

Field	Type	Description
`userId`	string	The new user’s ID
`appId`	string	Your app’s ID
`createdAt`	string	When the user was created
`email`	string \| null	The user’s email address when AGG has one from magic link or OAuth, otherwise `null`

accounts.linked

Fired when a user is linked to a partner external ID via the identity assertion flow.

{
  "id": "evt_accounts.linked:usr_abc123:partner_42",
  "type": "accounts.linked",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": {
    "userId": "usr_abc123",
    "externalId": "partner_42",
    "linkedAt": "2026-04-09T18:15:03.000Z"
  }
}

Field	Type	Description
`userId`	string	The user’s AGG ID
`externalId`	string	Partner id (the HMAC `externalId`), not the venue `externalIdentifier`. See Ids
`linkedAt`	string	When the link was created

wallets.ready

Fired when a server-managed wallet is provisioned for a user (both EVM and Solana addresses are available).

{
  "id": "evt_wallets.ready:usr_abc123",
  "type": "wallets.ready",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": {
    "userId": "usr_abc123",
    "evmAddress": "0x1234...abcd",
    "svmAddress": "ABC123...xyz",
    "createdAt": "2026-04-09T18:15:03.000Z"
  }
}

Field	Type	Description
`userId`	string	The user’s ID
`evmAddress`	string	EVM (Ethereum/Polygon) wallet address
`svmAddress`	string	Solana wallet address
`createdAt`	string	When the wallet was provisioned

trades.placed

Fired when a user submits a trade. orderId in this event is the quote id (quote_…). Query the API for the breakdown.

{
  "id": "evt_trades.placed:quote_abc123",
  "type": "trades.placed",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": {
    "orderId": "quote_abc123",
    "userId": "usr_abc123",
    "side": "yes",
    "timestamp": "2026-04-09T18:15:03.000Z",
    "externalId": "partner-abc"
  }
}

Field	Type	Description
`orderId`	string	Quote id. This example is `quote_…`, not a venue order id
`userId`	string	The user who placed the trade
`side`	string	Outcome side: `"yes"` or `"no"`
`timestamp`	string	When the order was placed
`externalId`	string \| null	Partner id (the HMAC `externalId`), not the venue `externalIdentifier`. See Ids. `null` when the trade did not carry one

trades.filled

Fired when a trade order reaches a terminal fill state. One event per venue-level order fill.

{
  "id": "evt_trades.filled:ord_abc123",
  "type": "trades.filled",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": {
    "orderId": "ord_abc123",
    "userId": "usr_abc123",
    "status": "filled",
    "timestamp": "2026-04-09T18:15:03.000Z",
    "externalId": "partner-abc"
  }
}

Field	Type	Description
`orderId`	string	The individual order ID (query API for fill details)
`userId`	string	The user who placed the trade
`status`	string	`"filled"` or `"partial_fill"`
`timestamp`	string	When the fill was recorded
`externalId`	string \| null	Partner id (the HMAC `externalId`), not the venue `externalIdentifier`. See Ids. `null` when the trade did not carry one

trades.fee_reconciled

Fired once per self-custody trade when its app fee reaches a final state. Self-custody fees need the user’s second signature and an on-chain confirmation after the fill, so this lands a few seconds after trades.filled. Wait for this event instead of polling for the fee. It is sent for every self-custody trade, with status: "none" when no fee applied.

{
  "id": "evt_trades.fee_reconciled:dag_abc123",
  "type": "trades.fee_reconciled",
  "createdAt": "2026-09-29T18:15:07.000Z",
  "data": {
    "dagRunId": "dag_abc123",
    "quoteId": "qt_abc123",
    "userId": "usr_abc123",
    "orders": [{ "orderId": "ord_abc123", "externalId": "partner-abc" }],
    "status": "confirmed",
    "feeDueRaw": "4693",
    "feeCollectedRaw": "4693",
    "appShareRaw": "3754",
    "platformShareRaw": "939",
    "chainId": "137",
    "tokenSymbol": "pUSD",
    "tokenAddress": "0xpusd",
    "appTxHash": "0xabc",
    "platformTxHash": null,
    "timestamp": "2026-09-29T18:15:07.000Z"
  }
}

Field	Type	Description
`dagRunId`	string	The trade execution run. The event id is keyed on it, so it arrives once per trade
`quoteId`	string	The quote the trade executed
`userId`	string	The user who placed the trade
`orders`	array	Every order in the trade. `externalId` on each order is the partner id (the HMAC `externalId`), not the venue `externalIdentifier`. See Ids. The fee is charged once across all of them
`status`	string	`"confirmed"`, `"under_collected"`, `"failed"`, `"skipped_zero"`, or `"none"` when no fee applied
`feeDueRaw`	string	Fee owed, in token-native atomic units
`feeCollectedRaw`	string	Fee actually collected, in token-native atomic units
`appShareRaw`	string	Your share of the fee
`platformShareRaw`	string	AGG’s share of the fee
`chainId`	string \| null	Chain the fee was paid on (`"137"` Polygon, `"1337"` HyperCore)
`tokenSymbol`	string \| null	Fee token symbol
`tokenAddress`	string \| null	Fee token address
`appTxHash`	string \| null	Transaction that paid your share
`platformTxHash`	string \| null	Transaction that paid AGG’s share, when paid separately
`timestamp`	string	When the event was emitted

deposits.confirmed

Fired when an on-chain token transfer into a user’s managed wallet is confirmed. One event per (chain, transaction, user). Bridge legs and venue settlement payouts are excluded, so this only reflects money the user (or a third party) sent in.

{
  "id": "evt_deposits.confirmed:137:0xabc123:usr_abc123",
  "type": "deposits.confirmed",
  "createdAt": "2026-09-24T18:15:03.000Z",
  "data": {
    "userId": "usr_abc123",
    "chainId": 137,
    "tokenSymbol": "USDC",
    "tokenAddress": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
    "amountRaw": "100000000",
    "txHash": "0xabc123",
    "fromAddress": "0xsender",
    "timestamp": "2026-09-24T18:15:03.000Z"
  }
}

Field	Type	Description
`userId`	string	The user whose wallet received the deposit
`chainId`	number	EVM chain ID, or the internal ID for Solana
`tokenSymbol`	string	Token symbol, e.g. `"USDC"`
`tokenAddress`	string	Token contract address or mint
`amountRaw`	string	Amount in the token’s atomic units (6 decimals for USDC)
`txHash`	string	On-chain transaction hash
`fromAddress`	string	Sending address, or empty when unknown
`timestamp`	string	When the deposit was confirmed

markets.resolved

Fired once per app when a prediction market resolves. Contains a summary — use the pull endpoint for the full list of affected users.

{
  "id": "evt_markets.resolved:vm_123:app_xyz",
  "type": "markets.resolved",
  "createdAt": "2026-04-09T18:15:03.000Z",
  "data": {
    "venueMarketId": "vm_123",
    "externalIdentifier": "KXBTC-26APR09",
    "status": "resolved",
    "outcomes": [
      { "label": "Yes", "winner": true, "payoutPerShare": 1, "refundAtCost": false },
      { "label": "No", "winner": false, "payoutPerShare": 0, "refundAtCost": false }
    ],
    "affectedUsersCount": 1842,
    "detailsPath": "/apps/app_xyz/market-resolutions/vm_123/users"
  }
}

Field	Type	Description
`venueMarketId`	string	The resolved market ID
`externalIdentifier`	string	Venue `externalIdentifier`, not the partner HMAC `externalId`. See Ids
`status`	string	`"resolved"` or `"closed"`
`outcomes`	array	Resolution outcome for each option: `label`, `winner`, `externalIdentifier`, `payoutPerShare`, `refundAtCost`
`outcomes[].payoutPerShare`	number?	USDC paid per share, 0 to 1. Absent when the venue has not reported it. A voided or split market pays less than 1 on every side (e.g. `0.5`), so check this before treating `winner: true` as a $1 win
`outcomes[].refundAtCost`	boolean	The venue voided the market and refunded each holder their stake at entry price
`affectedUsersCount`	number	Users in your app with open positions
`detailsPath`	string	API path to paginate affected user IDs

More than one winner: true means a split or voided market. Read payoutPerShare and refundAtCost before showing the user an amount. See Market resolution & voids.

Querying affected users

Use the SDK to paginate through affected users. Pass includeEmails: true to get email addresses where available.

import { AggAdminClient } from "@agg-build/sdk/server";

const admin = new AggAdminClient({
  baseUrl: "https://api.agg.market",
  apiKey: process.env.AGG_APP_API_KEY!,
});

// Paginate through all affected users
let cursor: string | undefined;
do {
  const page = await admin.listMarketResolutionUsers(
    appId,
    event.data.venueMarketId,
    { limit: 100, cursor, includeEmails: true },
  );
  for (const user of page.data) {
    console.log(user.userId, user.email);
  }
  cursor = page.nextCursor ?? undefined;
} while (cursor);

See the List users affected by market resolution API reference for full details.

This endpoint returns the current set of users with non-zero positions, not an immutable snapshot at resolution time. If positions are modified after resolution, the results may differ from the affectedUsersCount in the webhook.

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Market data

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Real-time

Webhooks

Your users

UI Kit

Releases

accounts.created

accounts.linked

wallets.ready

trades.placed

trades.filled

trades.fee_reconciled

deposits.confirmed

markets.resolved

Querying affected users

​accounts.created

​accounts.linked

​wallets.ready

​trades.placed

​trades.filled

​trades.fee_reconciled

​deposits.confirmed

​markets.resolved

​Querying affected users

accounts.created

accounts.linked

wallets.ready

trades.placed

trades.filled

trades.fee_reconciled

deposits.confirmed

markets.resolved

Querying affected users