All endpoints require an API key via the X-API-Key header.
GET/v1/historical
Full sponsor database with filtering by industry, category, audience size, and more. Supports pagination and deduplication.
GET/v1/stream
Real-time Server-Sent Events stream of new sponsor discoveries as they happen. Up to 5 concurrent connections.
GET/v1/brands/search
Fuzzy search across brand names, descriptions, and websites. Returns matched sponsors with contact info.
GET/v1/industries
List all industries with sponsor counts. Use with /v1/industries/:industry/sponsors for drill-down.
GET/v1/industries/:industry/sponsors
Get all sponsors in a specific industry. Supports deduplication and pagination.
GET/v1/sponsors/trending
Most active sponsors in recent days, ranked by sponsorship frequency.
GET/v1/audience/ranges
Sponsor distribution by audience size ranges for market sizing.
GET/v1/analytics/market-overview
Comprehensive market insights including top industries, audience trends, and sponsorship volume.
GET/v1/stats
Your API usage statistics, rate limit status, and account information.
GET/v1/sponsors/prolific
Sponsors ranked by number of newsletters they sponsor. Filter by min_sponsorships count for workflow routing.
GET/v1/sponsors/recent
Recently added sponsors with configurable lookback period. Supports deduplication and pagination.
GET/v1/sponsors/by-publication/:name
All sponsors of a specific newsletter or publication. Great for competitive intelligence.
GET/v1/sponsors/:id
Get a single sponsor by ID or slug with full details.
GET/v1/categories
List all sponsor categories with counts. Use with /v1/categories/:category/sponsors for drill-down.
POST/v1/export/csv
Export filtered sponsor data as CSV. Up to 5,000 rows with industry, category, and audience filters.
GET/health
Server status and database connectivity check.