Proposal: optional Adanos market sentiment connector

[alexander-schneider]

Proposal

Would you be open to an optional Adanos market sentiment connector for US equities?

Adanos provides authenticated stock sentiment data from Reddit, X / FinTwit, financial news, and Polymarket. Users would supply their own Adanos API key; account plans control quotas and historical lookback. The connector would be market-data only and would not place orders or alter strategy behavior.

API documentation: https://api.adanos.org/docs
OpenAPI definition: https://api.adanos.org/openapi.json

Suggested StockSharp fit

The closest existing pattern appears to be the Marketaux connector and its custom dataset types. To keep the first contribution narrow, I propose:

• a new Adanos project in this repository;
• ITokenAdapter and an HTTPS Address setting, with the key sent as X-API-Key;
• four ticker-scoped custom data kinds: Reddit, X, News, and Polymarket stock sentiment;
• MarketDataMessage.SecurityId as the ticker and From / To mapped to the API's inclusive UTC from / to parameters;
• a single custom AdanosDataMessage carrying the selected source, security, server time, resource, and normalized JSON payload, following the current Marketaux/FinancialDatasets pattern;
• no use of the deprecated days query parameter, no polling or streaming in the initial scope, and no trading logic;
• mocked REST/adapter tests, connector documentation, and any required solution/project registration.

This would expose the provider's daily sentiment_score, buzz_score, bullish_pct, bearish_pct, and source-specific activity counts without forcing those provider-specific fields into Level1ChangeMessage.

Questions before implementation

1. Is StockSharp/Connectors the correct repository for this contribution?
2. Do you prefer the custom normalized-JSON dataset pattern above, or typed daily sentiment messages?
3. If a custom message is appropriate, can you assign or confirm the next connector-specific MessageTypes value?
4. Which companion changes are required in StockSharp/StockSharp, StockSharp/doc, localization resources, and media assets?
5. Given the repository's proprietary license and the clarification in Please add an explicit license for this repository #1, do you approve us preparing and submitting this connector under the repository's contribution and licensing terms?

Once the intended shape and licensing path are confirmed, I can prepare the focused implementation with tests and documentation.