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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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Social & people
2 results
Search arXiv papers | VextoriumSocial & peopleSearch scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...).
BaseSolanaPolygon+3api.vextorium.comfrom $0.001230 endpoints
api.predge.ioSocial & peoplePREMIUM smart-money consensus. "Smart money" is EDGE-based, not the opaque scorer: a wallet qualifies when its luck-damped realized edge over the last 30d is positive — edge_lower_bound = Wilson-95%-lower-bound(live win rate) − avg entry price > 0, from RESOLVED outcomes (same machinery as the wallets leaderboard), with skin-in-the-game floors (>= 10 trades, >= $1,000 volume). For every active Pol
BaseSolanaalgorand+2api.predge.iofrom $0.00521 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.