Which whales actually win
Not just who's big — who's actually right. Per-wallet win rate, Brier calibration, profit factor and a smart/dumb classification. The accuracy layer no tracker exposes.
Prediction-Market Intelligence
Know what's true — and who's right.
Anyone can pull the odds. Idmon gives you the layer on top: on-chain-anchored resolution truth, which whales actually win, where the smart money sits, and honest calibrated performance — across Polymarket, Kalshi and beyond, by webhook, REST & WebSocket.
On-chain resolution truth
Which whales win
Smart-money flow
Calibrated performance
Why Idmon
The intelligence you can't build yourself.
Calibrated resolution truth
On-chain-anchored, multi-source-fused outcome labels with a calibrated P(correct) and dispute flags — so you know what resolved, how confident to be, and whether it's contested. Not raw scrapes.
Smart-money flow
Net flow from historically-accurate wallets versus the crowd, per market — so you can see where the wallets that actually win are positioned, stratified by their real track record.
Commercial licence
Clear rights to use the data in your product, fund, or community. No ambiguity — just terms you can build on.
Now an MCP server too
Point Claude, Cursor, or any MCP-speaking agent straight at the forensic layer — wallet skill, smart-money flow, resolution truth, and calibration, as callable tools. See the MCP server →
Pricing
Access the intelligence that fits your use case.
Billed monthly, or annually for ~2 months free. Pay by card or USDC.
For Discord communities & groups
Operator
from £99
per month
- Signal embeds pushed straight into your channel (no bot install — just a webhook URL)
- Whale alerts with leaderboard context
- Choose categories + minimum trade size
- Licensed to share with your members
For builders & quants
Developer
from £299
per month
- Full REST API + real-time WebSocket stream
- Signed webhooks (HMAC-SHA256)
- All signal types + performance/calibration data
- 10,000 req/day + burst headroom
- Versioned schema + documented errors
For funds & research
Enterprise
from £1,000
per month
- Everything in Developer
- Bulk history (market snapshots ~8K rows/min, 5-min OHLCV)
- Unlimited daily rate, 50 req/s
- SLA + priority support
- Custom analyses available
Build & infrastructure
Or have us build the whole thing.
Beyond the feed — we design, build and run the infrastructure around it, so the intelligence is working in your hands, not just available. Bespoke engagements, priced on request.
Discord & community
Your branded Discord — signal bot, channels and routing — set up, configured and run for you.
Dashboards & data products
Custom interfaces on top of the feed: your data, your brand, your users — built end-to-end.
Integration & ops
Wired into your stack, hosted and maintained — we run the pipeline so you don't have to.
How it works
From zero to live data in one business day.
Request access
Pick a plan or email us. Tell us about your use case and we'll confirm the right tier.
We provision your key
API key and webhook configuration provisioned within one business day. No self-service friction.
Data flowing in minutes
Point us at your endpoint and the feed starts. Signed payloads arrive immediately — no polling, no batch lag.
FAQ
Questions, answered.
What is Idmon?
Idmon is a prediction-market intelligence API. It delivers on-chain-anchored resolution truth, per-wallet accuracy (which traders actually win), smart-money flow, and honest calibrated signal performance across Polymarket, Kalshi, and other major prediction markets — by REST, WebSocket, and signed webhooks.
Which prediction markets does it cover?
Polymarket and Kalshi today, with more markets being added. Market, wallet, and signal data is normalised across platforms, so you query one consistent schema instead of stitching sources together.
How do I access the data?
Three ways: signed webhooks that push events into your Discord or endpoint, a REST API, and a real-time WebSocket stream. The API base URL is https://api.idmon.io, authenticated with a per-customer Bearer key.
What does it cost?
Operator is £99/month (calibrated signals pushed into your Discord), Developer is £299/month (full REST + WebSocket + signed webhooks), and Enterprise starts at £1,000/month (bulk history, higher limits, custom integration). Billed monthly, or annually for roughly two months free. Pay by card or USDC.
How is this different from raw scrapes?
Raw odds are a commodity — the platforms give them away free. Idmon ships the layer you can't easily build: on-chain-anchored, calibrated resolution labels with dispute flags, per-wallet accuracy so you know which traders actually win, where the smart money is positioned, and honest signal performance — published, including the misses. It's months of work you don't have to do.
Can I use it to power my own Discord or community?
Yes. The Operator plan pushes calibrated signals straight into your channel, and we can build and run the whole bot for you, white-label. Reselling the raw feed as a competing data product is not permitted — see the Terms.
How do I get started?
Email [email protected] for an API key, a developer key to try, or a free test channel for your Discord. Data typically flows within one business day. Full integration details are in the documentation.