Welcome to the Funding Signals API The Funding Signals API provides access to comprehensive, real-time funding signals aggregated from across the web. Our platform continuously monitors and collects funding activity, giving you up-to-date information on companies raising capital, funding rounds, investors, and market trends.
Funding Signals Endpoint View the complete OpenAPI specification
Count Mode You can get the total number of results matching any filter combination without consuming credits by adding count=true to your request. This returns an empty data array with full pagination metadata, including totalCount.
curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?count=true&countries=US&round=Seed" \ -H "Authorization: Bearer YOUR_API_KEY"
Response: { "success" : true , "data" : [], "pagination" : { "currentPage" : 1 , "totalPages" : 15 , "totalCount" : 287 , "hasNextPage" : true , "hasPreviousPage" : false }, "meta" : { "endpoint" : "signals.funding" , "creditsUsed" : 0 } }
Use count mode to preview how many results match your filters before fetching actual data. This is useful for building filter UIs, showing result counts, or validating queries — all at zero credit cost.
Key Features
Real-time Signals : Funding signals are aggregated continuously from web sourcesAdvanced Filtering : Filter by countries, categories, subcategories, funding rounds, date ranges, and search termsFunding Round Types : Filter by Pre-Seed, Seed, Series A through G, Growth, Debt, Grant, IPO, and moreRound Flavors : Distinguish between bridge, extension, and secondary roundsNumeric Range Filters : Filter by amount, employee count, and founded yearFlexible Sorting : Sort by date, amount, employee count, or founded yearVerification Status : Filter signals by verified, unverified, or pending statusPagination Support : Efficiently retrieve large datasets with up to 100 results per pageCredit-based Usage : Transparent credit consumption per API call
Service Level
Rate Limit : Based on your subscription tierUptime : 99% guaranteed uptimeData Freshness : Real-time aggregation ensures up-to-date signalsMaximum Results : Up to 100 results per page
Authentication All API endpoints require authentication using a Bearer token passed in the Authorization header.
curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?page=1&limit=20&round=Series%20A" \ -H "Authorization: Bearer YOUR_API_KEY"
Query Parameters Parameter Type Default Description pageinteger 1 Page number limitinteger 20 Results per page (max: 100)
Date Filters Parameter Type Description dateFromstring Filter by date from (ISO-8601 string) dateTostring Filter by date to (ISO-8601 string) date_presetstring Relative date shorthand — takes precedence over dateFrom/dateTo. See Date Presets
Company Filters Parameter Type Description countriesstring Comma-separated country codes (e.g., US,GB,DE) categoriesstring Pipe-separated company categories / industries subcategoriesstring Comma-separated subcategory IDs (e.g., ai,fintech,saas) industrystring Comma-separated exact industry names company_namestring Search by company name (partial match) searchstring Free-text search across company name & industry
Numeric Range Filters Parameter Type Description amount_mininteger Minimum funding amount in USD cents amount_maxinteger Maximum funding amount in USD cents employee_count_mininteger Minimum company employee count employee_count_maxinteger Maximum company employee count founded_year_mininteger Minimum company founded year founded_year_maxinteger Maximum company founded year
Funding-specific Filters Parameter Type Description roundstring Comma-separated round types. See Round Types round_flavorstring Comma-separated round flavors: bridge, extension, secondary currencystring Currency symbol filter (e.g., $, €, £) verification_statusstring Comma-separated statuses: verified, unverified, pending investor_namestring Search by investor name (partial match)
Sorting Parameter Type Default Description sort_bystring occurred_atSort field: occurred_at, discovered_at, amount, employee_count, founded_year sort_orderstring descSort direction: asc or desc
Funding Round Types The API supports filtering by these funding round stages:
Pre-Seed : Very early stage fundingSeed : Early-stage fundingSeries A : First significant round of venture capitalSeries B : Second round of funding for scalingSeries C – G : Later-stage funding roundsGrowth : Growth-stage capitalDebt : Non-equity debt financingGrant : Non-dilutive fundingIPO : Initial Public OfferingUndisclosed : Funding round with undisclosed details
Response Structure All successful responses follow this structure:
{ "success" : true , "data" : [ { "signalId" : "uuid-here" , "companyName" : "TechStartup Inc" , "roundType" : "Series A" , "fundingAmount" : 10000000 , "investorNames" : [ "VC Fund 1" , "Angel Investor 2" ], ... } ], "pagination" : { "currentPage" : 1 , "totalPages" : 10 , "totalCount" : 200 , "hasNextPage" : true , "hasPreviousPage" : false }, "meta" : { "endpoint" : "signals.funding" , "creditsUsed" : 1 } }
Error Handling The API returns standard HTTP status codes:
200 : Success401 : Unauthorized - Invalid or missing API key429 : Rate limit exceeded500 : Internal server error
Error responses include:
{ "success" : false , "error" : "Error message description" }
Example Usage Filter by Date Preset and Round Type curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?date_preset=last_30d&countries=US&round=Seed,Series%20A" \ -H "Authorization: Bearer YOUR_API_KEY"
Filter by Amount and Employee Count curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?amount_min=1000000&employee_count_max=50&sort_by=amount&sort_order=desc" \ -H "Authorization: Bearer YOUR_API_KEY"
Filter by Subcategory and Verification Status curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?subcategories=ai,fintech&verification_status=verified" \ -H "Authorization: Bearer YOUR_API_KEY"
Search with Multiple Filters curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?search=fintech&countries=US&round=Series%20A&sort_by=amount&sort_order=desc&limit=50" \ -H "Authorization: Bearer YOUR_API_KEY"
