Use for a short, sourced snapshot of a crypto token's market momentum. POST a symbol (ETH), contract, chain:address or topic; get an 8-12 line templated brief from live DexScreener and CoinGecko data (price, 24h/7d change, mcap, liquidity, volume, buy/sell mix, trending, rule-based momentum/risk notes), each figure source- and time-tagged. Base, Solana, Ethereum and more. No-data queries return 404, not charged. $0.10 USDC on Base. Not trading advice.
$0.10 USDC on Base per call via x402 v2 (exact scheme, network eip155:8453,
asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, payTo 0xAa8b7a2fdA07F6afF946e03BC1e7A1CFc6ac302E). Unknown tokens return 404 and are not charged.
curl -i -X POST https://momentum-brief.fly.dev/v1/brief \
-H 'Content-Type: application/json' \
-d '{"query":"ETH"}'
Without payment this returns 402 Payment Required with the requirements; an x402 client pays and retries with a PAYMENT-SIGNATURE header.
Example only: captured 2026-11-05 01:35 UTC; a paid call returns current figures.
Momentum brief: Ethereum (ETH) — live public data Price $2.42K; 24h +7.04%; 7d +2.62% [CoinGecko 2026-11-05T01:35:56Z] Market cap $295.74B (rank #2); 24h volume $17.15B [CoinGecko 2026-11-05T01:35:56Z] CoinGecko trending: #10 [CoinGecko 2026-11-05T01:35:56Z] Top home-chain pair WETH/USDC on uniswap (ethereum): price $2.42K; 1h -0.31%; 24h +6.97% [DexScreener 2026-11-05T01:35:56Z] Pair liquidity $9.66M; 24h volume $107.23M [DexScreener 2026-11-05T01:35:56Z] 24h txns: 11539 buys / 11252 sells (51% buys) [DexScreener 2026-11-05T01:35:56Z] Pair: https://dexscreener.com/ethereum/0xe0554a476a092703abdb3ef35c80e0d76d32939f Momentum: mixed/neutral (simple rule score +1 from 24h/7d change and buy/sell mix). Risk: no rule-based red flags; still verify contract, liquidity and holders yourself. Public-signal only — not trading advice. Figures are snapshots and may lag.
/.well-known/x402 · /openapi.json · /llms.txt · /health
Public-signal only — not trading advice.