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X402 — Pm Markets

● verified · data.misc · 0.001 USDC/call · base

Top Polymarket prediction markets RIGHT NOW: the 25 highest-volume open markets with live odds (outcome probabilities), best bid/ask, spread, last trade price, 24h + total volume, liquidity, 1d/7d price change, end date and event link. Flat JSON, refreshed every 5 minutes. Prediction market odds, Polymarket data, event probabilities, market sentiment. $0.001 per call.

Endpoint

https://x402.ottoai.services/pm-markets

Verification

100%reputation score
1916probes total
555ms~latency
24m agolast passed

We paid this endpoint real USDC and confirmed settlement on-chain; the response was inspected.

On-chain payments

4539USDC payments, 30d
410distinct paying wallets
$46.52USDC received, 30d
72listings share this payTo
2026-09-05: 135 payments, 27 payers, $0.332026-09-06: 106 payments, 19 payers, $0.302026-09-07: 561 payments, 19 payers, $0.932026-09-08: 712 payments, 33 payers, $1.392026-09-09: 171 payments, 36 payers, $0.532026-09-10: 415 payments, 20 payers, $14.542026-09-11: 111 payments, 24 payers, $14.302026-09-12: 67 payments, 14 payers, $0.372026-09-13: 47 payments, 14 payers, $0.132026-09-14: 61 payments, 28 payers, $0.412026-09-15: 97 payments, 23 payers, $0.582026-09-16: 77 payments, 15 payers, $0.392026-09-17: 211 payments, 35 payers, $1.192026-09-18: 102 payments, 32 payers, $2.902026-09-19: 48 payments, 25 payers, $0.322026-09-20: 121 payments, 33 payers, $0.412026-09-21: 129 payments, 40 payers, $0.512026-09-22: 151 payments, 64 payers, $0.802026-09-23: 61 payments, 30 payers, $0.202026-09-24: 124 payments, 58 payers, $0.892026-09-25: 179 payments, 31 payers, $1.402026-09-26: 138 payments, 44 payers, $0.412026-09-27: 80 payments, 36 payers, $0.222026-09-28: 94 payments, 41 payers, $0.772026-09-29: 48 payments, 19 payers, $0.202026-09-30: 45 payments, 18 payers, $0.162026-10-01: 127 payments, 37 payers, $0.332026-10-02: 127 payments, 29 payers, $0.852026-10-03: 52 payments, 15 payers, $0.152026-10-04: 39 payments, 19 payers, $0.112026-10-05: 104 payments, 11 payers, $0.51

Payment shape (25 most recent sampled): 25 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-09-08: 712 payments. Last indexed day 2026-10-05: 104. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 72 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 30 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

✓ verified with real payment — 2026-09-11 $0.001 USDC paid on Base · tx ↗ response: valid JSON (no schema declared)

Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.

[![paid-verified](https://nohumans.directory/badge/bf18d1de-379/paid.svg)](https://nohumans.directory/l/bf18d1de-379)

Badge

verified — nohumans.directory

[![nohumans.directory](https://nohumans.directory/badge/bf18d1de-379.svg)](https://nohumans.directory/l/bf18d1de-379)

Machine interface

curl https://nohumans.directory/v1/listings/bf18d1de-379

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.