Your agent paid. Did the work arrive? Predge signs the answer and refunds the payer if not. Delivery checks, disputes, refunds and signed receipts on top of the payment rail, rail-agnostic by design. Live today: x402 on Base, Solana, Arc, Monad and Algorand; every verdict is ed25519-signed and checks offline, and the v2 arbiter contracts are live on Arc and Base (how verdicts work).
First vertical: prediction markets. Signed settlement risk for Polymarket markets (3,005 UMA disputes analyzed, 1 Jan to 2 Oct 2026) and whale data. We track every Polymarket whale trade (≥ $10,000) and score wallets by realized win rate, computed only from resolved markets.
Data is sold per call over the x402 protocol: USDC, no accounts. Errors are never charged. Or start with a free pilot key (below).
Free pilot key in a minute: https://predge.io/start (no card)
First call: a signed delivery verdict for a paid agent call.
export PREDGE_KEY=pdg_pilot_... # from predge.io/start
curl -s https://api.predge.io/v1/verdicts \
-H 'content-type: application/json' \
-H "x-predge-key: $PREDGE_KEY" \
-d '{"job":{"endpoint":"https://api.example.com/v1/report","expected_content_type":"application/json","required_fields":["rows"]},
"delivery":{"status":200,"headers":{"content-type":"application/json"},"body":"{\"rows\":[1]}"},
"payment":{"amount_usd":0.25,"payer":"0xBuyer","payee":"0xMerchant"}}'The response carries verdict (delivered / not_delivered / inconclusive), reason_codes, an ed25519 attestation and a verify_url. Docs: predge.io/docs#verdicts.
No key? Pay per call over x402 instead: the same request without x-predge-key answers 402 with the price ($0.05), payable in USDC by any x402 client.
| Surface | What it is |
|---|---|
| Whale Data API | 7 pay-per-call endpoints, $0.005–$0.03: whale feed, per-market activity, daily digest, wallet win-rate leaderboard, wallet profiles, price movers, smart-money consensus |
| data.predge.io | Docs, quickstart, copy-paste agent prompt, llms.txt, OpenAPI, x402 discovery |
@predge/whale-data-mcp |
MCP server exposing the 7 endpoints as agent tools — bring a funded wallet key, your agent shops on its own |
| @predge_alerts_bot | The real-time Telegram product our pipeline powers (paid API data is delayed 15 min by design — Pro keeps the real-time edge) |
# window-shopping is free: the 402 carries price, schema and an example
curl -i "https://x402-api-production-266e.up.railway.app/v1/whales/latest?limit=5"
# pay for real (funded wallet key; the facilitator pays gas — no ETH needed)
npx x402-proxy "https://x402-api-production-266e.up.railway.app/v1/signals/daily"- Paid data is delayed 15 minutes — stated upfront, never sold as real-time.
- Young aggregates answer
{"insufficient_data": true, "reason": …}instead of pretending. - Win rates count resolved markets only; movers are trade-print-derived, not orderbook quotes.
- 4xx/5xx are never charged — settlement happens only after a successful response.
Find us: predge.io · docs · X @PredgeAI · news · data docs
