Social Intel API — Instagram Influencer Search API | Pay-per-request

# Social Intel API > Instagram influencer search API. Pay-per-request via x402 (USDC on Base or Solana). No API keys. No subscriptions. ## Links - Docs: https://socialintel.dev/docs - API Reference: https://socialintel.dev/docs/api-reference/search - Full API reference: https://socialintel.dev/llms-full.txt - OpenAPI JSON: https://socialintel.dev/openapi.json - MCP server: https://smithery.ai/servers/socialinteldev/social-intel-mcp - GitHub: https://github.com/socialinteldev/social-intel-mcp - About: https://socialintel.dev/about ## Try For Free - Add `?demo=true` to any /v1/search request — returns 3 results, no payment, no signup - Example: `curl "https://socialintel.dev/v1/search?query=fitness&demo=true"` - Free endpoint (unlimited queries, 3 results): GET /v1/search/free - Zero-setup paid: `npx agentcash@latest fetch "https://socialintel.dev/v1/search?query=fitness"` ## Endpoints - GET /v1/search — Search Instagram influencers by niche, location, gender, follower count (paid, $0.50+) - GET /v1/search/free — Free preview: 3 results per query, no payment required - POST /v1/contact — Describe what you need; we respond within 24h (free, no payment) ## Pricing - $0.50 for ≤20 results; +$0.01/result above 20 (max 100 results = $1.30) - Paid in USDC on Base or Solana via x402 protocol - First try: add `?demo=true` to get 3 free results before committing ## Monthly Budget Scenarios - Light (testing): 10 requests/mo × $1.30 = $13.00/mo (1,000 leads) - Agency (1 campaign): 100 requests/mo × $1.30 = $130/mo (10,000 leads) - Platform (integrated): 1,000 requests/mo × $1.30 = $1,300/mo (100,000 leads) Each request with limit=100 returns up to 100 influencer profiles with emails. ## AgentCash ```bash npx agentcash@latest discover https://socialintel.dev ``` ## Key Fields Returned username, full_name, followers, category, bio, public_email, is_verified, is_business ## Blog — Comparisons & Guides - [7 Instagram Data APIs Compared (2026)](https://sociali

{"openapi":"3.1.0","info":{"title":"Social Intel API","description":"# Instagram Influencer Search API\n\nSearch 33M+ Instagram profiles by niche, country, follower count, and gender. Get business contact emails for ~50% of accounts. No signup, no API keys, no subscription — just pay per request via x402.\n\n## Why Use This API\n\n- **One API call** replaces hours of manual Instagram research\n- **Business emails** included (~50% of accounts have public contact email)\n- **No account needed**