402x402Hub
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Otto AI

api

x402.ottoai.services

A83

Crypto prediction markets on Polymarket: the highest-volume open BTC, ETH and crypto markets with live odds (outcome probabilities), best bid/ask, spread, 24h + total volume, liquidity, price change and end date. "Bitcoin above X", price targets, ETF and protocol events — what the prediction market ACTUALLY prices in, as flat JSON refreshed every 5 minutes. Crypto odds, Bitcoin prediction market, ETH probability. $0.001 per call.

network: basepaid$0.001 USDCx402HTTP

Trust Score breakdown

Usage

43 calls/30d

41 /100
×0.294
Maintenance (recency)

called 2d ago

100 /100
×0.235
Verification

verification verified (100%)

100 /100
×0.353
Metadata completeness

meta: description, tags, price

100 /100
×0.118

Total is a weighted sum; missing signals are excluded and the rest renormalized — a transparent, open algorithm.

x402Hub verification

✓ Verified
✓Valid endpoint URLx402.ottoai.services
✓HTTPS secure connectionhttps
✓Valid x402 payment schemebase / paid
✓Complete metadata433 chars, 5 tags
✓Recent real usage2d ago, 43 calls/30d

Verified independently by x402Hub — not self-reported by the source (e.g. Bazaar). We check publicly observable signals: URL, HTTPS, x402 protocol conformance, and real usage.

30-day calls
43
Success rate
—
Data source
bazaar
Endpoint ↗