> ## Documentation Index > Fetch the complete documentation index at: https://docs.testnet.dev.adipredictstreet.com/llms.txt > Use this file to discover all available pages before exploring further. # Fee ledger > One row per fee event, joined to the originating trade by `tradeId`. `role=maker` rows are always amount=0 by platform policy; only `taker` rows carry value. Quadratic fee formula lives in platform compliance policy. ## OpenAPI ````yaml /api-reference/openapi.json get /api/me/fees openapi: 3.1.0 info: title: PredictStreet core-api description: >- Client-facing HTTP gateway for the PredictStreet prediction-market platform. This spec is hand-written against the NestJS controllers and DTOs in core-api/src/modules/. For the source-of-truth live spec, run `./scripts/pull-openapi.sh` against a running core-api (NestJS exposes it at /api/docs-json). **Partner kinds.** Every authenticated endpoint resolves a request's *effective wallet* from the partner row. `single_wallet` partners bind to one `associatedWallet` set at creation. `multi_wallet` partners declare the actor on every request via an `X-User-Wallet: 0x<40-hex>` header. See the [Partner kinds](/auth/api-keys#partner-kinds) doc for the full contract. version: '2026-06-16' contact: name: PredictStreet partners email: partners@predictstreet.com servers: - url: https://core.api.dev.predictstreet.sde.adifoundation.ai description: Testnet (partner integrator API — final domain TBD) security: [] tags: - name: Deposits description: >- Gasless USDC deposit relay - submit a signed EIP-2612 permit and the platform broadcasts the on-chain deposit for you (no gas). - name: Events description: >- Polymarket-style event grouping with football metadata (group, stage, teams, tags). - name: Tags description: Curated tag taxonomy used to filter events. - name: Markets description: 'Public market data: list, detail, orderbook, trades, OHLC.' - name: Orders description: >- Signed-order place / cancel / read. Requires `X-Api-Key` with `orders:read` / `orders:write` scope; every write additionally requires an EIP-712 signature over the order. - name: Portfolio description: >- Balances, positions, trades, fees, vault info for the key's `associatedWallet`. Requires `X-Api-Key` with `portfolio:read` scope. - name: Matches description: >- admin.matches aggregate — groups several events into one fixture/card (1X2 + first-scorer + over-under under one matchup). - name: Vault description: >- Backend co-signatures for ERC-1155 split / merge, and recovery for off-chain locks when the corresponding chain tx never confirmed. Requires `X-Api-Key` with `vault:write` scope plus an EIP-712 signature over the operation. - name: Leaderboard description: Public ranked leaderboard across PnL / volume buckets. - name: Search description: Global search across users, events, and matches. - name: Withdrawal Security description: >- Self-service withdrawal 2FA (TOTP) and withdrawal-address whitelist. Same endpoints serve the frontend (Privy JWT) and API-key integrators. Mutations need `vault:write`, reads `portfolio:read`. Both are opt-in per wallet and only gate withdrawals once the platform enables withdrawal-security enforcement. paths: /api/me/fees: get: tags: - Portfolio summary: Fee ledger description: >- One row per fee event, joined to the originating trade by `tradeId`. `role=maker` rows are always amount=0 by platform policy; only `taker` rows carry value. Quadratic fee formula lives in platform compliance policy. operationId: PortfolioController_fees parameters: - name: limit in: query description: >- Page size. `< 1` → `400 invalid_limit`. Values above `maximum` are silently clamped to `maximum`. schema: type: integer default: 100 minimum: 1 maximum: 200 - name: before in: query description: >- ISO-8601 timestamp; returns entries strictly older than this (exclusive). Pair with `limit` to page backwards. Unknown pagination params (`offset`, `page`, `cursor`) are silently ignored — this endpoint is time-cursor only. schema: type: string format: date-time - $ref: '#/components/parameters/UserWalletHeader' responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/FeeLedgerRespDto' type: object properties: walletAddress: type: string ledger: type: array items: $ref: '#/components/schemas/FeeLedgerEntry' security: - ApiKeyAuth: - portfolio:read components: parameters: UserWalletHeader: name: X-User-Wallet in: header required: false description: >- **Required for `multi_wallet` partners on every authenticated request; ignored for `single_wallet`.** Declares the acting end-user wallet for this request — drives KYC checks, balances/positions/orders attribution, rate-limit buckets, and audit. Lower-cased server-side. Missing on a multi_wallet key → 401 `api_key_user_wallet_required`; malformed → 401 `api_key_user_wallet_invalid`. The on-chain `CTFExchange`/`Vault` contracts still verify EIP-712 signer ↔ vault binding, so loosening API-layer attribution is safe by construction. schema: $ref: '#/components/schemas/EthereumAddress' example: '0x1234567890abcdef1234567890abcdef12345678' schemas: FeeLedgerRespDto: type: object properties: walletAddress: type: string ledger: type: array items: $ref: '#/components/schemas/FeeLedgerEntryDto' required: - walletAddress - ledger EthereumAddress: type: string pattern: ^0x[a-fA-F0-9]{40}$ example: '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb3' FeeLedgerEntryDto: type: object properties: id: type: string tradeId: type: string amount: type: string description: Fee amount (decimal string). token: type: string role: type: string enum: - maker - taker description: >- Maker fee is always 0 by platform policy; only taker rows carry value today. createdAt: type: string required: - id - tradeId - amount - token - role - createdAt securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-Api-Key description: >- Partner / integrator key — format `ps_live__`. Issued by PredictStreet ops via the admin panel; never self-service. Never ship to a browser. `multi_wallet` partners must additionally send `X-User-Wallet: 0x<40-hex>` on every authenticated request to declare the acting wallet. See the [API keys guide](/auth/api-keys) for scope taxonomy, partner kinds, rate limits, and rotation procedure. ````