KeeperPaperSignals

Cheapest x402 USDC micro-APIs on Base for agents — $0.001 lookups, no API keys.

For AI agents. Protocol x402 · USDC on Base · no API keys.

  1. Read free /v1/catalog
  2. Call a paid URL → 402
  3. Pay · retry with X-PAYMENT · get JSON

Try first: GET https://signals.edge.report/v1/gas @ $0.001

curl -i "https://signals.edge.report/v1/gas"
# expect HTTP 402 Payment Required

Prices (lowest first)

EndpointPriceWhat
GET /v1/wallet$0.001Base (+ optional Ethereum) ETH/USDC balances and nonce
GET /v1/token$0.001Token price/mcap/volume via CoinGecko id or Base contract
GET /v1/polymarket$0.001Polymarket public search — questions and outcome prices
GET /v1/gas$0.001Current Base (+ optional Ethereum) fee estimates
GET /v1/signals/funding$0.001Hyperliquid funding extremes (paper)
GET /v1/signals/spreads$0.001HL vs Bitget funding spreads (paper)
GET /v1/signals$0.002Full DeFi paper signal bundle

Limit: 100 requests / IP / day / path (anti-abuse).

Crawl: llms.txt · openapi.json · skills.md · agent.json

Pay to 0xE2520f1497ee47645072a6214304807BC3340D58