Signal Lab: free financial data sources
Search and export a catalog of free financial data sources, with terms URLs and ingestion skills.
What it does
Signal Lab: free financial data sources is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 3h ago (live check)Hosted endpoint
https://signal-lab-jet.vercel.app/api/mcpstreamable-http
In Claude Code: claude mcp add --transport http signal-lab-free-financial-data-sources https://signal-lab-jet.vercel.app/api/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"signal-lab-free-financial-data-sources": {
"url": "https://signal-lab-jet.vercel.app/api/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 3h agoONLINE Signal Lab: free financial data sources answered an MCP connection on 30 Oct 2026 and introduced itself as signal-lab-catalog 1.1.0 (MCP protocol 2025-06-18).
7 tools offered to AI assistants
search_catalog· Find free and free-to-start financial data sources, tools and models in the Signal Lab catalog by text and by filters (category, type, access badge, sign-up needed, license, task, verified, verified_since; see list_filters for the values).get_entry· Return one catalog entry by slug, with every field the catalog has for it (limits, coverage, auth, license, licenseNote, source URLs, lastVerified). Get slugs from search_catalog.compare_entries· Place the catalog's fields for up to 5 entries side by side. Values are the catalog's own; a field the catalog does not have shows Not in catalog.list_filters· List the values the catalog uses for type, badge, auth, category, license, task, verified and lastVerified, with how many entries have each. Call this first to pick exact filter values.catalog_info· Return the catalog's notice, schemaVersion, generated time, entry count and the download URLs of the full catalog as JSON and CSV.export_catalog· Export the Signal Lab catalog as JSON or CSV: every entry, or only those matching the same filters as search_catalog (no result cap). Optional fields picks columns by catalog field name. CSV has a header row, joins lists with "; " and repeaget_source_urls· Return where each entry's data comes from: the provider's site, docs and evidence pages, the license or terms URL with the license note, and the lastVerified date, plus the Signal Lab page. Pass up to 25 slugs, or the same filters as search
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Version | 1.2.1 | DECLARED | SRC-001 Official MCP Registry | just now |
| Hosted endpoint | https://signal-lab-jet.vercel.app/api/mcp | DECLARED | SRC-001 Official MCP Registry | just now |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | just now |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | just now |
| Website | https://signal-lab-jet.vercel.app | DECLARED | SRC-001 Official MCP Registry | just now |
| Repository | https://github.com/QDThead/signal-lab | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | just now |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | just now |
Change history
- VERSION30 Oct 20261.2.0 → 1.2.1
- VERSION30 Oct 20261.1.0 → 1.2.0
- NEW30 Oct 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is Signal Lab: free financial data sources still online?
Free alerts · no accountDo you run Signal Lab: free financial data sources? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
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<a href="https://electraindex.com/mcp/signal-lab-free-financial-data-sources?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/signal-lab-free-financial-data-sources" alt="Listed on Electra Index"></a>Questions about Signal Lab: free financial data sources
How do I connect Signal Lab: free financial data sources?
Use the hosted endpoint https://signal-lab-jet.vercel.app/api/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does Signal Lab: free financial data sources offer?
When Electra Index connected on 30 Oct 2026, it listed 7 tools: search_catalog, get_entry, compare_entries, list_filters, catalog_info, export_catalog, get_source_urls. The full list is in "Live check" above.
Is Signal Lab: free financial data sources online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 3h ago.