> ## Documentation Index > Fetch the complete documentation index at: https://docs.arcus.xyz/llms.txt > Use this file to discover all available pages before exploring further. # Predicted funding > > **Endpoint:** `wss://api.arcus.xyz/v1/ws` — one socket multiplexes every channel and RPC request. Click **Connect**, then send the example subscribe message below to start receiving data. Predicted next-hour funding rate for a single market. Subscribe `id` is the market display name (e.g. `BTC-USD`). On subscribe the initial response carries the latest cached prediction for the market; `contents` is empty when no prediction has been published yet. Streaming updates deliver a new `{market, rate1h}` payload each time the funder recomputes the prediction. Unlike most channels, payloads are not wrapped in an `isSnapshot` envelope. ## AsyncAPI ````yaml api-reference/asyncapi.yaml predictedFunding id: predictedFunding title: Predicted funding description: > > **Endpoint:** `wss://api.arcus.xyz/v1/ws` — one socket multiplexes every channel and RPC request. Click **Connect**, then send the example subscribe message below to start receiving data. Predicted next-hour funding rate for a single market. Subscribe `id` is the market display name (e.g. `BTC-USD`). On subscribe the initial response carries the latest cached prediction for the market; `contents` is empty when no prediction has been published yet. Streaming updates deliver a new `{market, rate1h}` payload each time the funder recomputes the prediction. Unlike most channels, payloads are not wrapped in an `isSnapshot` envelope. servers: - id: mainnet protocol: wss host: api.arcus.xyz bindings: [] variables: [] - id: testnet protocol: wss host: api.testnet.arcus.xyz bindings: [] variables: [] address: /v1/ws?channel=predictedFunding parameters: [] bindings: [] operations: - &ref_5 id: subscribePredictedFunding title: Subscribe predicted funding type: receive messages: - &ref_7 id: subscribe contentType: application/json payload: - name: Subscribe to a market channel type: object properties: - name: type type: string description: subscribe required: true - name: channel type: string enumValues: - trades - oraclePrices - bbo required: true - name: id type: string description: Market display name (e.g. "BTC-USD"). required: true headers: [] jsonPayloadSchema: type: object required: - type - channel - id properties: type: type: string const: subscribe x-parser-schema-id: channel: type: string enum: - trades - oraclePrices - bbo x-parser-schema-id: id: type: string description: Market display name (e.g. "BTC-USD"). example: BTC-USD x-parser-schema-id: x-parser-schema-id: SubscribeByMarketPayload title: Subscribe to a market channel example: |- { "type": "subscribe", "channel": "trades", "id": "BTC-USD" } bindings: [] extensions: - id: x-parser-unique-object-id value: subscribe bindings: [] extensions: &ref_4 - id: x-parser-unique-object-id value: predictedFunding - &ref_6 id: receivePredictedFunding title: Receive predicted funding type: send messages: - &ref_8 id: snapshot contentType: application/json payload: - allOf: &ref_0 - &ref_1 type: object description: Common envelope for all server-pushed channel messages. required: - type - channel properties: type: type: string enum: - subscribed - channel_data description: >- `subscribed` for the initial snapshot; `channel_data` for updates. x-parser-schema-id: channel: type: string description: Channel name. x-parser-schema-id: id: type: string description: >- Channel id (market or address). Absent for global channels. x-parser-schema-id: contents: type: object additionalProperties: true description: Channel-specific payload. Schema varies by channel. properties: {} x-parser-schema-id: x-parser-schema-id: ChannelDataEnvelope - type: object properties: type: const: subscribed x-parser-schema-id: contents: &ref_2 type: object description: > Predicted next-hour funding rate as published by the funder. Not wrapped in an isSnapshot envelope. May be empty in the subscribe-time snapshot when no prediction is cached for the market yet. properties: market: type: string description: Market display name. example: BTC-USD x-parser-schema-id: rate1h: type: string description: Predicted 1-hour funding rate as a decimal string. example: '0.0000125' x-parser-schema-id: x-parser-schema-id: PredictedFundingRate x-parser-schema-id: x-parser-schema-id: PredictedFundingSnapshotPayload name: Predicted Funding Snapshot description: > Latest cached predicted rate for the market, sent once on subscribe. `contents` is empty when no prediction has been published yet. headers: [] jsonPayloadSchema: allOf: *ref_0 x-parser-schema-id: PredictedFundingSnapshotPayload title: Predicted Funding Snapshot description: > Latest cached predicted rate for the market, sent once on subscribe. `contents` is empty when no prediction has been published yet. example: |- { "type": "subscribed", "channel": "predictedFunding", "id": "BTC-USD", "contents": { "market": "BTC-USD", "rate1h": "0.0000125" } } bindings: [] extensions: - id: x-parser-unique-object-id value: snapshot - &ref_9 id: update contentType: application/json payload: - allOf: &ref_3 - *ref_1 - type: object properties: type: const: channel_data x-parser-schema-id: contents: *ref_2 x-parser-schema-id: x-parser-schema-id: PredictedFundingUpdatePayload name: Predicted Funding Update description: > New predicted next-hour funding rate, pushed each time the funder recomputes the prediction for the market. headers: [] jsonPayloadSchema: allOf: *ref_3 x-parser-schema-id: PredictedFundingUpdatePayload title: Predicted Funding Update description: > New predicted next-hour funding rate, pushed each time the funder recomputes the prediction for the market. example: |- { "type": "channel_data", "channel": "predictedFunding", "id": "BTC-USD", "contents": { "market": "BTC-USD", "rate1h": "0.0000131" } } bindings: [] extensions: - id: x-parser-unique-object-id value: update bindings: [] extensions: *ref_4 sendOperations: - *ref_5 receiveOperations: - *ref_6 sendMessages: - *ref_7 receiveMessages: - *ref_8 - *ref_9 extensions: - id: x-parser-unique-object-id value: predictedFunding securitySchemes: [] ````