Short answer
DalalOS is a hosted MCP connector at https://mcp.dalalos.in/mcp. You add it in Claude under connectors, not skills. It supplies end-of-day NSE/BSE data, financials, ownership and filings with source and freshness context. It does not give buy/sell calls.
KEY TAKEAWAYS
- A skill is instructions. It is a folder with a SKILL.md file and optional scripts or reference files that Claude loads when a task matches its description.
- A connector is access. It is a remote MCP server Claude can call for tools and data, which is what DalalOS is.
- A skill cannot replace a data connector for market data: a bundled file is a snapshot, and network access for skills varies by surface and settings.
- You can use both: the connector for data, and your own skill for your research checklist.
Claude skill vs MCP connector at a glance
| Aspect | MCP connector (DalalOS) | Claude skill |
|---|---|---|
| What it is | A remote MCP server Claude calls for tools and data | A folder of instructions (SKILL.md) with optional scripts and reference files |
| What it provides | Access to a live data source: quotes, financials, ownership, filings | A method: how to do a task, in what order, with what format |
| Where the data comes from | The service behind the connector (NSE/BSE and SEBI-sourced data for DalalOS) | Whatever Claude already has access to, plus anything bundled in the skill |
| How you add it in Claude | Customize → Connectors → Add custom connector, using the server URL | Uploaded as a skill, or placed in a skills folder in Claude Code |
| Freshness | Read at question time; market-data responses carry source and freshness context | Static unless it calls something else; bundled data goes stale |
| Verdicts | None: no buy/sell calls or target prices | Whatever the instructions tell Claude to do, so keep them evidence-first |
Why Indian stock data comes from a connector
Reliance’s latest quarterly numbers, a promoter’s changing pledge or tomorrow’s results calendar cannot live in a file written last month. They sit in exchange and regulatory sources that change daily or quarterly. A connector reads them when you ask; a skill can only carry what someone wrote into it.
Anthropic’s documentation describes a skill as a directory with a SKILL.md file whose description Claude matches against your request, with optional scripts and reference files loaded when needed. It also states that custom skills on claude.ai are individual to each user and that network access for skills depends on the surface and on user or admin settings. A connector, by contrast, is an MCP server Claude calls directly. See the Agent Skills overview and the guide to adding a connector that is not in the directory.
How to add DalalOS in Claude
No skill to install
There is nothing to download or upload as a skill. Account limits on custom connectors depend on your Claude plan, so check Claude’s current plan details if the add dialog is unavailable.
Using a skill together with the connector
Once the connector is in place, a skill is a good place to keep your own research habits so you do not retype them. The sketch below is an illustration you would write and own yourself; it is not a DalalOS download, and the tool names are the real DalalOS MCP tools.
--- name: indian-stock-research-checklist description: Use when asked to research an NSE/BSE-listed company. Follow the evidence-first checklist. --- # Indian stock research checklist 1. Resolve the company first (search_stocks), then confirm the symbol. 2. Pull financials and trends (get_financials, get_financial_trends). 3. Compare against peers on the same fields and dates (get_peer_comparison). 4. Check ownership and promoter pledge (get_shareholding, get_pledge_trend). 5. For every figure, state the source and freshness date. 6. Show the numbers and how they were computed. Do not give a rating, a target price or a buy/sell call.
Illustrative sketch, not a DalalOS download.
Keep the skill’s instructions on the evidence side of the line: ask for figures, sources and freshness, not ratings. For how to apply that to a real company, see the fundamental analysis walkthrough.
Which should you choose?
DalalOS returns raw data and mechanically-computed ratios for research. It is not investment advice, and you should verify figures against the original filings before relying on them.
FAQ
Common questions
- Is DalalOS a Claude skill?
- No. DalalOS is a hosted MCP (Model Context Protocol) server that you add to Claude as a custom connector using its URL. A Claude skill is a folder of instructions (a SKILL.md file plus optional scripts); DalalOS is a data service Claude calls over the network.
- Where do I find DalalOS in Claude: skills or connectors?
- Under connectors. In Claude, open Customize → Connectors, choose Add custom connector and use the DalalOS MCP URL, or use the prefilled link on the connect page. It does not appear under skills.
- Do I need a skill to use DalalOS?
- No. The connector alone gives Claude the tools and the source and freshness metadata. A skill is optional: you could write your own to make Claude follow a research checklist every time it uses the connector.
- Can a skill give Claude live Indian stock data?
- Not on its own. A skill carries instructions and optional scripts and reference files; it is not a data service, and Anthropic documents that network access for skills varies by surface and settings. Anything bundled inside a skill is a snapshot that goes stale, which is why market data is better supplied by a connector.
- Does using the connector give me investment advice?
- No. DalalOS returns sourced facts and mechanically-computed measures only, with no buy/sell calls, target prices or ratings. Prices are end-of-day, not real-time. This page is educational and not investment advice.
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