Do I need an API key?
Do I need an API key?
No. Social Intel API uses the x402 protocol, where payment is authentication. Any wallet with USDC on Base or Solana can use the API immediately — no signup, no API keys, no OAuth.
What chains are supported for payment?
What chains are supported for payment?
USDC on Base and Solana. Both are mainnet. Base is recommended for lowest gas fees.
Why does the API return HTTP 402?
Why does the API return HTTP 402?
HTTP 402 (“Payment Required”) is part of the x402 protocol. When you send a request, the API responds with 402 and includes payment details (amount, wallet address, chain) in the response headers. Your x402 client library handles the payment automatically and retries the request — you get results without any extra code.
What is x402?
What is x402?
x402 is an open protocol for pay-per-request APIs using stablecoins. It uses the HTTP 402 status code to negotiate payments. Client libraries handle the payment flow automatically, making it transparent to developers.
How much does it cost?
How much does it cost?
0.002, up to a maximum of 100 results ($0.26). See Pricing for the full formula and cost optimization tips.
Are there rate limits?
Are there rate limits?
There are no per-key rate limits since there are no API keys. However, there are general rate limits to prevent abuse. If you hit a rate limit, you’ll receive HTTP 429 with a
Retry-After header.Can I use this with Claude Desktop or Cursor?
Can I use this with Claude Desktop or Cursor?
Yes. Social Intel API has an MCP server that works with Claude Desktop, Cursor, Windsurf, and any MCP-compatible client. See MCP Integration for setup instructions.
What data is returned per influencer?
What data is returned per influencer?
Each result includes:
username, full_name, followers, following, category, bio, public_email, is_verified, and is_business. See Response Schema for details on every field.Do all results have email addresses?
Do all results have email addresses?
No. Only business/creator accounts with a public email set will have the
public_email field. Typically 15-25% of results include an email. Use category filters to increase the business account ratio.What is the data source?
What is the data source?
Social Intel API aggregates publicly available Instagram profile data. All data is sourced from public profiles — no scraping of private accounts or DMs.
Can I filter by follower range?
Can I filter by follower range?
Yes. Use
min_followers and max_followers parameters. For example, min_followers=10000&max_followers=100000 finds micro-influencers with 10K-100K followers.What countries are supported?
What countries are supported?
Most countries with significant Instagram usage. Use standard ISO 3166-1 alpha-2 country codes (US, UK, DE, FR, etc.). See Parameters for a full list.