Choose Narwhal API when
You need Narwhal's published Economics, FX, Equities, SEC filing metadata, Palmoil, and Calendars data through REST and MCP, with one shared account and quota.
Multi-API and economic data
Narwhal API vs API Ninjas
Both services put multiple data APIs behind an API key, but their strengths differ. Narwhal concentrates on six financial and public-data families with a connected REST and MCP journey. API Ninjas offers a much broader catalogue across finance and many unrelated categories.
Decision
Choose Narwhal for an intentionally connected financial-data contract with source, unit, period, freshness, and limitation documentation. Choose API Ninjas when catalogue breadth or its wider inflation and long-range FX products matter more.
Choose the alternative when
You need APIs outside Narwhal's six data families, HICP, API Ninjas' 38-country inflation coverage, or its documented daily FX history back to 1999.
Evidence by requirement
This comparison covers overlapping financial-data jobs. It does not treat API Ninjas' non-financial catalogue as equivalent to Narwhal's product scope.
| Requirement | Narwhal API | API Ninjas |
|---|---|---|
| Product shape | Six connected financial and public-data families. | A broad directory spanning finance and many other API categories. |
| Economics | CPI, inflation, labour, GDP, and merchandise trade for ten published countries. | Its Inflation API documents CPI/HICP current and historical rates for 38 countries. |
| FX | Current rates, decimal-safe conversion, and stored historical observations through REST and MCP. | Current and historical currency-pair endpoints; its documentation says daily history extends to 1999. |
| Agent access | A hosted MCP endpoint shares the same key and quota as REST. | API Ninjas links to an MCP server alongside its API directory. |
| Free evaluation | The Free plan includes 3,000 successful requests per UTC month. | A free key is available, while the checked Inflation endpoints are marked Premium only. |
Sources and review date
The comparison uses Narwhal's current public contract and the following first-party competitor pages.
Reviewed:
Test Narwhal with the same job
Check the published coverage, inspect the response contract, and make a first request before choosing a provider.