> ## Documentation Index > Fetch the complete documentation index at: https://docs.mannco.store/llms.txt > Use this file to discover all available pages before exploring further. # Set item price (bulk) > Prices multiple item types in a single request. This is the bulk counterpart of POST /inventory/price, which handles one type per call. The endpoint both lists inventory items (`backpack.state = 0`) and reprices existing listings (`state = 1`), and matches each group against existing buy orders exactly like the single-type route. Each group is one `item_id`: every `assetId` in a group must resolve to the same catalog item, and an `assetId` may appear in only one group. Limits are 50 groups and 1000 `assetId`s in total; exceeding 50 groups fails the whole request. Groups are validated independently, so the response reports partial success. The call returns HTTP 200 with `err: false` even when some groups fail — read `content.errors` and `content.results` to know what happened. **Permission:** Connected + API + 2FA. A browser session JWT must send the TOTP code in `X-TwoFA`; API tokens (`API: true`) satisfy 2FA automatically. CSRF is not required on this route. ## OpenAPI ````yaml /openapi.json post /inventory/price/bulk openapi: 3.1.0 info: title: Mannco.store API description: >- Complete API documentation for Mannco.store - Buy and sell TF2, CS:GO, Dota 2, Rust and Steam community items. All routes use the `api` filter. Every endpoint requires an `Authorization: Bearer ` token obtained from POST /user/login. The only exception is the login endpoint itself, which is used to obtain the token. version: 1.0.0 servers: - url: https://api.mannco.store description: Production security: - bearerAuth: [] tags: - name: Auth description: Authentication and login - name: Items description: Item details, listings, pricing, and sales graphs - name: Offers description: Create, manage, and respond to trade offers - name: Buy Orders description: Create, update, and manage buy orders - name: Payment description: Checkout sessions for balance and cart payments - name: Inventory description: 'Manage user inventory: list, price, and withdraw' - name: Cart description: Manage the shopping cart - name: Listing description: Deposit Steam items and instant sell - name: Instant Sell Partners description: Instant sell on behalf of another Steam user. Partnered websites only - name: Trading description: Active and historical trades - name: User Account description: Account, balance, sessions, and history - name: Utils description: Public utility endpoints paths: /inventory/price/bulk: post: tags: - Inventory summary: Set item price (bulk) description: >- Prices multiple item types in a single request. This is the bulk counterpart of POST /inventory/price, which handles one type per call. The endpoint both lists inventory items (`backpack.state = 0`) and reprices existing listings (`state = 1`), and matches each group against existing buy orders exactly like the single-type route. Each group is one `item_id`: every `assetId` in a group must resolve to the same catalog item, and an `assetId` may appear in only one group. Limits are 50 groups and 1000 `assetId`s in total; exceeding 50 groups fails the whole request. Groups are validated independently, so the response reports partial success. The call returns HTTP 200 with `err: false` even when some groups fail — read `content.errors` and `content.results` to know what happened. **Permission:** Connected + API + 2FA. A browser session JWT must send the TOTP code in `X-TwoFA`; API tokens (`API: true`) satisfy 2FA automatically. CSRF is not required on this route. operationId: setItemPriceBulk parameters: - name: X-TwoFA in: header required: false description: >- TOTP code. Required for browser session JWTs, ignored for API tokens. A missing or invalid code returns HTTP 403 with `{ "error": "2FA" }`, which is not the usual `{ err, success, content }` envelope. schema: type: string example: '123456' requestBody: required: true content: application/json: schema: type: object required: - items properties: items: type: array description: >- Groups to price, one group per item type (maximum 50, and 1000 asset IDs across all groups). Also accepted as a JSON-encoded string for form-encoded posts. minItems: 1 maxItems: 50 items: type: object required: - ids - price properties: ids: description: >- Steam asset IDs of one item type, as a comma-separated string or an array of strings. Digits only. The `ids` field returned by GET /inventory/onInventory and GET /inventory/onSale can be reused as-is. oneOf: - type: string - type: array items: type: string price: type: integer description: >- Price in cents (1 to 5,000,000). Never send dollars or floats. minimum: 1 maximum: 5000000 example: items: - ids: 4400000001,4400000002,4400000003 price: 150 - ids: - '7300000042' price: 3200 responses: '200': description: Bulk pricing processed. Returned even when some groups fail. content: application/json: example: err: false success: true content: total: 3 processed: 2 errors: 1 listed: 5 sold: 1 sold_buyorder: 2 results: - index: 0 item_id: 18472 status: listed message: ok listed: 3 sold: 1 - index: 1 item_id: 9021 status: listed message: ok listed: 2 sold: 0 - index: 2 item_id: 0 status: error message: Item not found or not owned listed: 0 sold: 0 schema: $ref: '#/components/schemas/ApiError' '300': description: >- Business error. Nothing was processed: `Missing items array: [{ ids, price }]`, `Maximum 50 item types per request`, or `Invalid Steam ID`. content: application/json: schema: $ref: '#/components/schemas/ApiError' example: err: true success: false content: message: Maximum 50 item types per request '403': description: >- Missing or invalid 2FA code, or insufficient permissions. The 2FA case uses a bare `{ "error": "2FA" }` envelope. content: application/json: example: error: 2FA '500': $ref: '#/components/responses/ServerError' components: schemas: ApiError: type: object description: >- Standard Mannco.store response envelope. `err` and `success` flag the outcome; the payload (or error message) is always under `content`. required: - err - success properties: err: type: boolean description: True when the request failed. success: type: boolean description: True when the request succeeded. content: description: Payload on success, or an error message/object on failure. responses: ServerError: description: Internal server error. content: application/json: schema: $ref: '#/components/schemas/ApiError' example: err: true success: false content: Internal server error securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: JWT obtained from POST /user/login ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.