[Quote Permission] SG paper account receives only 15-minute delayed CN quotes despite documented real-time A-share support

まず General Q&A と Quote API Overview のドキュメントを issue #1167 と比較します。シンガポールの paper アカウントが CN_L1_ChinaMainland_EL を受け取るかを確認し、Developer Center の権限を、報告された quote と candlestick のタイムスタンプと比較します。地域ごとの entitlement の動作を文書化するか、アカウント権限を修正するか、必要なドキュメント変更を特定すれば完了です。

Summary

My Longbridge Developers paper account is registered in the Singapore region and is identified by the API as lb_papertrading.

Although the official documentation states that paper accounts support real-time A-share market data, my account currently receives CN quotes and 1-minute candlesticks with a consistent delay of approximately 15 minutes.

The Developer Center also explicitly shows only:

CN — 15-minute delayed quotes

There is no option visible for enabling real-time CN OpenAPI quotes.

I only need read-only real-time quotes and 1-minute candlestick data for market analysis. I do not require trading functionality.

Environment

• Account region: Singapore
• Account type: Paper Trading (lb_papertrading)
• Authentication: OAuth authorization generated while the paper account was selected
• Access methods tested: Longbridge ChatGPT App and hosted MCP/OpenAPI
• Test symbol: 513310.SH
• Test date: August 27, 2026
• Time zone: UTC+8
• Trading functionality used: None

The connection successfully returned the paper account's cash information and empty positions, confirming that the authorization was bound to the paper account rather than my previous live-account authorization.

Steps to reproduce

1. Select and authorize the Singapore paper account.
2. Connect through the Longbridge ChatGPT App / hosted MCP.
3. Query the CN market status.
4. Query the latest quote for 513310.SH.
5. Query the latest 1-minute candlesticks for 513310.SH.
6. Compare the returned timestamps with the actual China market time.

Actual result

At the time of testing, the following timestamps were observed:

Item	Returned time
Actual China market time	15:02:34 (UTC+8), market already closed
Market time visible through the delayed feed	14:47:34, still shown as trading
Latest quote timestamp for 513310.SH	14:47:29
Latest 1-minute candlestick	14:47

The quote and candlestick data were therefore approximately 15 minutes behind the actual market time.

During the same session, NVDA.US returned current overnight-market data up to 14:54:43 (UTC+8), rather than exhibiting the same fixed 15-minute delay. This suggests that the MCP connection and OAuth authorization were functioning normally.

Developer Center permission

The quote-permission page for this paper account shows CN market access only as:

15-minute delayed quotes (CN)

It does not show a CN LV1 real-time OpenAPI package such as:

CN_L1_ChinaMainland_EL | LV1 Real-time Quotes

Expected result based on the documentation

The official General Q&A states:

The paper account supports real-time quotes for HK, US, and A-share markets.

It also states under the supported paper-account markets:

Supports real-time market data for Hong Kong stocks, US stocks, and A-share markets.

Documentation:

• https://open.longbridge.com/docs/qa/general

The official Quote API Overview states that the Basic OpenAPI quote level includes:

LV1 US/CN real-time

Documentation:

• https://open.longbridge.com/docs/quote/overview

Therefore, I expected the SG paper account to receive real-time CN LV1 quotes and real-time 1-minute candlesticks.

Questions

1. Does the documented real-time A-share market-data support for paper accounts also apply to Singapore-region paper accounts?

2. Should an SG paper account receive the CN_L1_ChinaMainland_EL real-time quote package under Basic OpenAPI activation?

3. Why does my Developer Center show only 15-minute delayed CN quotes, with the API data delayed by the same amount?

4. Could this be an account-entitlement or backend configuration issue? If so, could the quote permissions for this paper account be checked and corrected?

5. If SG paper accounts are intentionally excluded from real-time CN OpenAPI quotes, could you clarify the applicable regional/account restrictions and update the documentation accordingly?

6. If an additional quote package must be activated, please provide its exact name, activation path, eligibility requirements, and pricing. I only require CN real-time quotes and 1-minute candlesticks.

Related issue

Issue #1167 reports a very similar symptom in another market: an account expected to have real-time OpenAPI quotes received data delayed by exactly 15 minutes.

• https://github.com/longbridge/developers/issues/1167

That issue also shows CN_L1_ChinaMainland_EL | LV1 Real-time Quotes in the user's available quote packages, indicating that real-time CN OpenAPI access is available for at least some accounts.

Additional information available

For privacy reasons, I have not posted my full paper-account ID or any OAuth credentials publicly.

I can provide the following if needed:

• Full paper-account ID through a private support channel
• A redacted screenshot of the Developer Center quote-permission page
• Redacted longbridge auth status output
• Full redacted results from the market-status, quote, and candlestick requests
• Exact timestamps and additional CN symbols for reproduction

Please let me know the appropriate private channel if account-specific information is required.