checkr

Real-time X/Twitter attention intelligence for Base chain tokens.

Base URL: https://api.checkr.social
Docs: https://api.checkr.social/docs
Payment: x402 — USDC on Base mainnet, pay-per-call, no account needed.

Endpoints

Endpoint	Price	What it returns
`GET /v1/leaderboard`	$0.02	Top Base tokens ranked by social attention share
`GET /v1/spikes`	$0.05	Tokens currently velocity-spiking (the radar sweep)
`GET /v1/token/{symbol}`	$0.50	Deep dive: ATT deltas, price, divergence, narrative
`GET /v1/bankr`	$0.02	Attention leaderboard for the bankr agent ecosystem

Full response schemas and field definitions: https://api.checkr.social/docs