> ## Documentation Index > Fetch the complete documentation index at: https://docs.renaiss.xyz/llms.txt > Use this file to discover all available pages before exploring further. # List vault regions > Count the wallet’s redeemable cards by vault region so the user can choose where to ship from. Show each vault region and its eligible card count. When the user selects a region, [load its redeemable cards](https://docs.renaiss.xyz/api-reference/redeem/list-eligible-cards.md). ## Request Builder key and wallet access token ## Response ## Error codes Match the HTTP status and response text to a row below. For guidance on codes shared across endpoints, see [Error meanings and recovery](https://docs.renaiss.xyz/api-reference/errors.md). | HTTP | Error code | Text field | Response text and recovery | | :- | :- | :- | :- | | `401` | `API_AUTH_INVALID_CREDENTIAL` | `error` | `Invalid authentication credential` The builder key or the wallet access token is malformed, unknown, expired or revoked. Check the key. For the token, refresh the tokens or have the wallet sign in again. | | `401` | `API_AUTH_MISSING_CREDENTIAL` | `error` | `Required authentication credential is missing` The builder key or the wallet access token is missing. Send both: the key in the `x-builder-api-key` header and the token as a Bearer token. | | `403` | `API_AUTH_CREDENTIAL_NOT_ALLOWED` | `error` | `Credential is not allowed by this policy` A credential this route does not take was sent. Send the builder key and the wallet access token only. | | `403` | `API_AUTH_INSUFFICIENT_SCOPE` | `error` | `Required authentication scope is missing` The wallet access token lacks the scope this route needs: `redeem:read` to read, `redeem:write` to change. Have the wallet sign in again and ask for the scope. | | `403` | `API_AUTH_INTEGRATION_MISMATCH` | `error` | `Authentication integrations do not match` The wallet access token was issued to another builder than the key. Use the key of the builder that issued the token. | | `403` | `API_AUTH_SUBJECT_MISMATCH` | `error` | `Authentication subjects do not match` The wallet access token is not for the chain of this API. Have the wallet sign in again for the right chain. | | `403` | `GACHA_V3_BUILDER_NOT_ACCEPTED_ON_PUBLIC_API` | `error` | `This builder checks out on its own surface, not on the public API` This builder key cannot be used on this API. Do not retry; contact Renaiss. | | `429` | `API_AUTH_RATE_LIMITED` | `error` | `Authentication rate limit exceeded` The builder key hit its rate limit. Wait a little, then retry at a lower rate. | | `500` | `API_AUTH_INVALID_CONFIGURATION` | `error` | `Internal server error` Contact Renaiss with `x-request-id` if wallet authentication keeps failing. | | `500` | `API_AUTH_ERROR` | `error` | `Internal server error` | | `500` | `FUNCTION_ERROR` | `error` | `Internal server error` | ## OpenAPI ````yaml api-reference/openapi.json GET /v2/redeem/regions openapi: 3.1.1 info: version: 1.0.0 title: Renaiss Builder API v2 description: >- Builder API v2 for gacha, marketplace and redemption with external wallets on BNB Smart Chain (chain 56). Any active, approved builder key can prepare purchases. A collectible is an item a wallet can pull, trade, sell back or redeem, such as a card. This API calls every such item a collectible (e.g. cards), in paths, fields and descriptions. Browse publicly, then prepare and sign actions with the buyer wallet. Gacha history and buyback offers require your builder key; purchases and buybacks also require a wallet action signature. Private shipping data and redemption require a wallet access token, which the API issues from a registered partner origin after the wallet signs a sign-in message. Gacha and marketplace never use a wallet access token. Keep the builder key on your backend. The acting wallet is an EOA or a deployed ERC-1271 contract account. EIP-7702 delegated accounts, ERC-6492 and ERC-8010 wrapped signatures and Renaiss-managed Safes are refused (a Safe only after its signature verified). A pull to a contract account that cannot receive ERC-721 tokens returns `CONTRACT_WALLET_CANNOT_RECEIVE_NFT`. A failed chain read returns `API_AUTH_ERROR` (500). Wallet access tokens and redemption are EOA only. servers: - url: https://api.renaiss.xyz description: BNB Smart Chain - url: https://dev-api.renaiss.xyz description: BNB testnet security: [] tags: - name: Gacha v2 description: >- Direct-EOA pack browsing, purchases, collectible (e.g. card) reveals, purchase history and buybacks. Start here; no wallet access token is needed. - name: Marketplace description: >- Public collectible (e.g. card) browsing and external-wallet asks, bids, purchases and cancellations. Trading requires builder authorization and wallet action signatures. - name: Users description: >- What one wallet address has and did: its collectibles (e.g. cards), their total market value and its activities. The whole wallet, whichever builder it used. Requires your builder key only. - name: Redemption description: >- Shipping eligibility, quotes, redemption preparation, submission and tracking. Requires your builder key and a wallet access token for the same wallet. - name: Wallet access tokens description: >- Get, refresh and revoke the wallet access tokens that Redeem needs. The wallet signs a sign-in message (valid 5 minutes, one use); the API returns a wallet access token (15 minutes) and a refresh token (7 days, single use). Register exact partner frontend origins with Renaiss before use. Gacha and marketplace never use a wallet access token. paths: /v2/redeem/regions: get: tags: - Redemption summary: Count this EOA's redeemable collectibles by region description: >- Count the wallet’s redeemable cards by vault region so the user can choose where to ship from. responses: '200': description: Success content: application/json: schema: type: object properties: counts: type: object additionalProperties: type: integer required: - counts '401': description: >- The builder key or the wallet access token is not accepted. See [error codes and recovery](/api-reference/redeem/list-regions#http-errors). content: application/json: schema: type: object properties: error: type: string description: A short sentence about what went wrong. code: type: string enum: - API_AUTH_MISSING_CREDENTIAL - API_AUTH_INVALID_CREDENTIAL required: - error - code example: error: Required authentication credential is missing code: API_AUTH_MISSING_CREDENTIAL '403': description: >- The builder key or the wallet access token is not allowed to do this. See [error codes and recovery](/api-reference/redeem/list-regions#http-errors). content: application/json: schema: type: object properties: error: type: string description: A short sentence about what went wrong. code: type: string enum: - API_AUTH_INSUFFICIENT_SCOPE - API_AUTH_INTEGRATION_MISMATCH - API_AUTH_SUBJECT_MISMATCH - API_AUTH_CREDENTIAL_NOT_ALLOWED - GACHA_V3_BUILDER_NOT_ACCEPTED_ON_PUBLIC_API required: - error - code example: error: Required authentication scope is missing code: API_AUTH_INSUFFICIENT_SCOPE '429': description: >- Too many requests with this builder key. See [error codes and recovery](/api-reference/redeem/list-regions#http-errors). content: application/json: schema: type: object properties: error: type: string description: A short sentence about what went wrong. code: type: string enum: - API_AUTH_RATE_LIMITED required: - error - code example: error: Authentication rate limit exceeded code: API_AUTH_RATE_LIMITED '500': description: >- A failure on our side. Retry later. See [error codes and recovery](/api-reference/redeem/list-regions#http-errors). content: application/json: schema: type: object properties: error: type: string description: A short sentence about what went wrong. code: type: string required: - error - code example: error: Internal server error code: FUNCTION_ERROR security: - builderAuth: [] walletSession: [] components: securitySchemes: builderAuth: type: apiKey in: header name: x-builder-api-key description: >- Your approved builder API key. Keep it on your backend. Gacha and marketplace writes also require wallet action signatures. Redeem also needs a wallet access token, a Bearer token the API issues after the wallet signs a sign-in message. walletSession: type: http scheme: bearer description: 'Wallet access token: Bearer authentication for Redeem' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.