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StartupDB

startupdb.com

Free plan WebAPI
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Spec score 7.3 #19 of 26 in Startup Databases

What it is

StartupDB is a free database of startups, investors and people, organized around investment relationships and funding rounds. Company records can include funding dates, amounts, investor roles and source URLs, and facts link to sources for checking. Its data draws on reviewed public investor portfolio pages, public news, company and investor websites, and edits by staff, founders and investors. The database is available through a read-only MCP server and REST API, without an account or API key. The MCP server has six tools for searching investors, startups and people and retrieving individual records. The REST API provides GET endpoints for searches, individual records, investor portfolios and company funding activity, returning JSON. Both interfaces allow 120 requests per minute per IP address, with no daily cap. StartupDB says coverage is not complete, so a missing round or investor means only that the information is absent from the database. Dataset facts and compilation are licensed under CC BY 4.0 for commercial reuse with attribution; third-party logos, photos and site text are excluded. Founders and investors can claim and correct pages, and staff review reported issues. StartupDB says it was built at Workshop.

Spec sheet

License
The dataset’s facts and compilation are licensed under CC BY 4.0 and may be reused commercially with attribution; third-party logos, photos and site text are excluded.Read 3 Oct 2026 · startupdb.com
Maker
The site says StartupDB was built at Workshop.Read 3 Oct 2026 · startupdb.com
Corrections
Founders and investors can claim and correct their pages, and reported issues are reviewed by StartupDB staff.Read 3 Oct 2026 · startupdb.com
Coverage limitation
StartupDB says it does not claim completeness and that a missing round or investor only means it is absent from the database.Read 3 Oct 2026 · startupdb.com
Data sources
Data comes from reviewed public investor portfolio pages, public news, company and investor websites, and edits by staff, founders and investors.Read 3 Oct 2026 · startupdb.com
Funding details
Company records can include funding rounds, dates, amounts, investor roles and source URLs.Read 3 Oct 2026 · startupdb.com
MCP and API
StartupDB offers a free, read-only MCP server and REST API with no account or API key required.Read 3 Oct 2026 · startupdb.com
MCP clients
The setup guide provides connection instructions for Claude Code, Claude Desktop, Cursor and Codex, and says other MCP clients can connect over Streamable HTTP.Read 3 Oct 2026 · startupdb.com
Rate limit
The REST API and MCP server are limited to 120 requests per minute per IP address, with no daily cap.Read 3 Oct 2026 · startupdb.com
REST endpoints
The REST API provides investor and startup search, individual records, investor portfolios and company funding activity through GET endpoints returning JSON.Read 3 Oct 2026 · startupdb.com
Search and lookup
The MCP server has six tools to search investors, startups and people and retrieve individual records.Read 3 Oct 2026 · startupdb.com
Source links
Each fact links to its sources so users can check where it came from.Read 3 Oct 2026 · startupdb.com
What it is
StartupDB is a free database of startups, investors and people that records investment relationships and funding rounds.Read 3 Oct 2026 · startupdb.com

Plans and prices

Free Free Free database, MCP server and REST API · no account or API key · 120 requests per minute per IP; no daily cap Read 3 Oct 2026 · startupdb.com

Every StartupDB plan and price →

Strong points and limits

Strong points

  • Free MCP server and REST API need no account or key.
  • Company records can include funding details and source URLs.
  • No daily API request cap.
  • Dataset facts and compilation allow commercial reuse with attribution.

Limits

  • Coverage is explicitly incomplete.
  • Access is limited to 120 requests per minute per IP.
  • Third-party logos, photos and site text are excluded from the license.

Who it suits

StartupDB suits people looking up startups, investors, people and funding relationships, as well as developers who want database access through MCP or a REST API. Its records include linked sources, and the dataset can be commercially reused with attribution under CC BY 4.0.

Verdict

StartupDB combines funding records with source links and free programmatic access through MCP and REST. Treat absent records as gaps in the database, not confirmation that an investment did not occur.

Where Specifiction places it

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