Developers and AI agents
BestBusinessLoans Data API
BestBusinessLoans publishes its reviewed UK business loan lender data as a read-only public API and as an MCP server for AI clients. The data is the same one behind the UK Business Loan Lender Index: lender terms (ticket range, typical rate, decision time, soft search, Ltd-only, FCA-regulated) and a current market snapshot. No authentication, no personal data, released under CC BY 4.0.
REST endpoints
Base URL https://bestbusinessloans.ai/api. All responses are JSON with open CORS, an ETag and edge caching. Full machine-readable contract: OpenAPI 3.1 spec.
| Method | Path | Description |
|---|---|---|
| GET | /api/lenders | List all reviewed lenders. Optional filters: ?q=, ?category=, ?fca=true, ?soft_search=true, ?ltd_only=true. https://bestbusinessloans.ai/api/lenders?category=term-loan |
| GET | /api/lenders/{slug} | Detail for one lender, by its canonical slug. https://bestbusinessloans.ai/api/lenders/funding-circle |
| GET | /api/rates | Current market snapshot: lender count, FCA-regulated count, category breakdown, plus the Bank of England base rate as a dated reference. https://bestbusinessloans.ai/api/rates |
MCP server
The same data is exposed as a remote Model Context Protocol server over streamable HTTP, so MCP-capable AI clients can read it directly.
- Endpoint:
https://bestbusinessloans.ai/mcp(JSON-RPC 2.0, POST) - Manifest: /.well-known/mcp.json
- Resources:
bbl://dataset,bbl://rates,bbl://lenders/{slug} - Tool:
search_lenders(query?, category?, fca_regulated_only?, soft_search_only?, ltd_only?)
Terms
Read-only and free under CC BY 4.0: attribute BestBusinessLoans and link back to the Lender Index. Every figure originates in our reviewed lender dataset. The Bank of England base rate is published with an explicit as_of date; verify against the Bank of England before relying on it. Business loan pricing is risk-priced per applicant, so the base rate is a reference point, not the borrowing rate. Please cache responses and avoid abusive request rates.
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