> ## Documentation Index > Fetch the complete documentation index at: https://docs.polymarket.com/llms.txt > Use this file to discover all available pages before exploring further. # 获取市场价格区间 > 读取此市场上 RFQ 交易价格必须落入的价格区间，涵盖两个结果代币。 完整的交易流程请参阅 [RFQ 交易合作伙伴 API 指南](https://docs.polymarket.com/partners/rfq-trades.md)。 ## OpenAPI ````yaml api-spec/rfq-partner-openapi.yaml GET /v1/markets/{marketId}/price-band openapi: 3.0.3 info: title: Polymarket RFQ Trades — Partner API version: 1.0.0 description: > Trades two counterparties agreed through an RFQ, settled on Polymarket's CTF Exchange as one matched pair of orders. A partner pre-flights the agreed terms (`validate`), has the service build both orders (`prepare`), collects each side's signature, submits the signed pair, and follows the trade by polling or over the WebSocket stream (`asyncapi.yaml`). ## Authentication Every request except `/v1/time`, `/health` and `/ready` carries three headers: - `RFQ-Key-Id`: the public half of the partner's API key. - `RFQ-Timestamp`: Unix seconds. It must be within 30 seconds of server time either way; `GET /v1/time` returns the server clock. - `RFQ-Signature`: `base64url(HMAC-SHA256(secret, timestamp + method + path + body))`, padded (RFC 4648 §5), where `method` is uppercase, `path` is the URL path without the query string, and `body` is the exact bytes sent (empty for a `GET`). The partner is resolved from the key, never from the body. Another partner's trade is a `404`. ## Conventions - Amounts (`shares`, `makerAmount`, `takerAmount`, fees) are base-10 integer strings in 6-decimal units: `"1000000"` is one share or one pUSD. Prices and tolerances are decimal strings. - Request bodies are decoded strictly: an unknown field is a `400`. - Every error uses the `Error` envelope. `details.reason` is the machine-readable rejection, and new reasons may be added: treat an unknown one as a rejection. - Fees are set by the service and returned by `prepare`. A submission never quotes its own. servers: - url: https://external-rfq-partner.polymarket.com description: Production security: - RfqKeyId: [] RfqTimestamp: [] RfqSignature: [] tags: - name: RFQ trades - name: Markets - name: Status paths: /v1/markets/{marketId}/price-band: get: tags: - Markets summary: Get a market's price band description: > The window around each outcome token's CLOB midpoint that an RFQ trade's price must fall inside, at the default tolerance. A submission can tighten it with `priceTolerance`. operationId: getMarketPriceBand parameters: - name: marketId in: path required: true description: A gamma market id. schema: type: string responses: '200': description: The band for each outcome token. content: application/json: schema: $ref: '#/components/schemas/PriceBand' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' '422': $ref: '#/components/responses/UnprocessableEntity' '500': $ref: '#/components/responses/InternalError' '502': $ref: '#/components/responses/DependencyUnavailable' components: schemas: PriceBand: type: object required: - marketId - tolerance - outcomes - readAt properties: marketId: type: string tolerance: type: string description: The fraction of each mark the band spans. outcomes: type: object required: - 'yes' - 'no' properties: 'yes': $ref: '#/components/schemas/OutcomeBand' 'no': $ref: '#/components/schemas/OutcomeBand' readAt: type: string format: date-time OutcomeBand: type: object required: - tokenId - source properties: tokenId: $ref: '#/components/schemas/Uint256' mark: type: string lower: type: string upper: type: string source: type: string enum: - clob_midpoint - unavailable description: >- `unavailable` when no midpoint could be read; `mark`, `lower` and `upper` are then omitted. Error: type: object required: - error properties: error: type: object required: - code - message - retryable - details properties: code: type: string enum: - validation_failed - authentication_failed - not_found - stale_state - invalid_state - dependency_unavailable - internal description: Maps one to one to the HTTP status. message: type: string description: Human-readable, for logs. retryable: type: boolean description: Whether the same request may be sent again as is. details: type: object properties: reason: $ref: '#/components/schemas/RejectionReason' party: type: string description: >- The side the rejection is attributable to, when there is one. field: type: string description: >- The request field at fault, when there is one, e.g. `orders[0].salt`. example: error: code: validation_failed message: 'stale_order (taker): order timestamp is 12m0s old (max 10m0s)' retryable: false details: reason: stale_order party: taker Uint256: type: string pattern: ^[0-9]+$ description: A base-10 uint256. RejectionReason: type: string description: > The machine-readable reason a check failed or a request was rejected. New values may be added. See the guardrail and validation guides for each one. enum: - unknown_account - account_restricted - ofac_blocked - insufficient_balance - insufficient_allowance - dependency_unavailable - invalid_order - token_market_mismatch - stale_order - fee_not_accepted - market_not_tradable - price_out_of_band - price_deviation_exceeded - price_mark_missing - transaction_notional_exceeded - taker_notional_below_minimum - counterparty_notional_exceeded responses: Unauthorized: description: >- Missing or invalid authentication headers, or a timestamp outside the window. content: application/json: schema: $ref: '#/components/schemas/Error' NotFound: description: No such resource for this partner. content: application/json: schema: $ref: '#/components/schemas/Error' UnprocessableEntity: description: The request is well-formed but rejected; `details.reason` says why. content: application/json: schema: $ref: '#/components/schemas/Error' InternalError: description: An unexpected server error. content: application/json: schema: $ref: '#/components/schemas/Error' DependencyUnavailable: description: >- A dependency failed. Retry when `retryable` is true, with the same `idempotencyKey` for a submission. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: RfqKeyId: type: apiKey in: header name: RFQ-Key-Id description: The public half of the partner's API key. RfqTimestamp: type: apiKey in: header name: RFQ-Timestamp description: Unix seconds, within 30 seconds of server time. RfqSignature: type: apiKey in: header name: RFQ-Signature description: >- base64url(HMAC-SHA256(secret, timestamp + method + path + body)), padded. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.