# sap_premium_stream_poll

Long-poll buffered premium stream events for an active session. Returns events that have been delivered to the server-side event buffer since the last poll. This is the MCP-compatible alternative to holding open an SSE connection — call this tool periodically to drain the event buffer. This tool is transport-agnostic: because it is a standard MCP tool call (request/response), it works over any MCP transport including stdio, streamable-http, and WebSocket-based MCP transports. There is no need for a separate WebSocket endpoint — this poll tool IS the WebSocket-compatible consumption path. Events are returned oldest-first. Use the sinceEventId cursor from the last poll to fetch only new events. If no events are available, the tool will wait up to waitMs (default 15s, max 30s) for events to arrive before returning an empty array — this gives near-real-time delivery without repeated polling. Set waitMs=0 for instant return. SAP MCP execution guidance: Intent: SAP MCP tool workflow. Pricing: free; call directly without x402. Routing: free hosted call; call directly and keep it small/exact when possible. Signer boundary: hosted reads/builders never receive keypair bytes; value-moving results must be finalized locally when signing is required.

Agent View of the PolicyLayer registry record for `sap_premium_stream_poll`. HTML page: https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-premium-stream-poll

## Facts

- Tool: `sap_premium_stream_poll`
- Server: Sap (`https://mcp.sap.oobeprotocol.ai/mcp`) — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server.md
- Homepage: https://github.com/OOBE-PROTOCOL/sap-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: yes
- Parameters: 5 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `waitMs` | number | no | Long-poll wait timeout in milliseconds. If no events are available, the tool waits up to this duration for events to arrive before returning. Default: 15000 (15 |
| `eventType` | string | no | Optional event type filter. Only events matching this type are returned. |
| `maxEvents` | number | no | Maximum number of events to return in a single poll. Default: 10, max: 100. |
| `sessionId` | string | yes | Active premium session id whose stream events should be polled. |
| `sinceEventId` | string | no | Optional event id cursor. Only events delivered after this event id are returned. Use the last event id from the previous poll to paginate. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "sap_premium_stream_poll",
    "arguments": {
      "sessionId": "<sessionId>"
    }
  }
}
```

## Why sap_premium_stream_poll is rated Low

Tool retrieves buffered events without side effects; read-only polling mechanism.

From the tool's own definition: "Long-poll buffered premium stream events for an active session, returns events, transport-agnostic."

## Use case

AI agents call sap_premium_stream_poll to retrieve information from Sap without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Sap:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "sap_premium_stream_poll": {}
  }
}
```

## Other tools on Sap (374)

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- `jupiter_cancelLimitOrder` — Destructive — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/jupiter-cancellimitorder.md
- `jupiter_cancelLimitOrders` — Destructive — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/jupiter-cancellimitorders.md
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- `openbook_cancelOrder` — Destructive — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/openbook-cancelorder.md
- `sap_revoke_attestation` — Destructive — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-revoke-attestation.md
- `sap_revoke_feedback` — Destructive — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-revoke-feedback.md
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- `blinks_confirmAction` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/blinks-confirmaction.md
- `blinks_executeAction` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/blinks-executeaction.md
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- `magicblock_login` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/magicblock-login.md
- `magicblock_requestRandomness` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/magicblock-requestrandomness.md
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- `sap_adrena_build_add_liquidity` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-add-liquidity.md
- `sap_adrena_build_add_locked_stake` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-add-locked-stake.md
- `sap_adrena_build_cancel_limit_order` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-cancel-limit-order.md
- `sap_adrena_build_cancel_stop_loss` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-cancel-stop-loss.md
- `sap_adrena_build_cancel_take_profit` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-cancel-take-profit.md
- `sap_adrena_build_claim_stakes` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-claim-stakes.md
- `sap_adrena_build_close_commodity_long` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-close-commodity-long.md
- `sap_adrena_build_close_commodity_short` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-close-commodity-short.md
- `sap_adrena_build_init_user_staking` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-init-user-staking.md
- `sap_adrena_build_open_short` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-open-short.md
- `sap_adrena_build_position_package` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-position-package.md
- `sap_adrena_build_remove_liquid_stake` — Execute — https://policylayer.com/tools/oobe-protocol-labs-sap-mcp-server/sap-adrena-build-remove-liquid-stake.md
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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=oobe-protocol-labs-sap-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/oobe-protocol-labs-sap-mcp-server