Predictefy vs Bitquery Polymarket API (2026)
The Short Answer
Predictefy is the best Bitquery Polymarket API alternative for anyone who needs order books, trading or more than one venue. Bitquery indexes Polymarket's on-chain activity on Polygon and serves it over GraphQL, and its own documentation describes the offering as "read-only data," pointing users to Polymarket's own APIs for "placing orders" and "reading the order book." Predictefy serves live order books, normalized market data and client-signed trading across 16 venues, Polymarket included, through one REST and WebSocket API with a free plan of 25,000 credits a month.
Predictefy vs Bitquery Polymarket API: Quick Comparison
- Venue coverage: Predictefy 16 venues. Bitquery's prediction market documentation covers Polymarket.
- Live order books: Predictefy serves them across 16 venues. Bitquery directs users to Polymarket's own APIs for order books.
- Trading: Predictefy supports client-signed execution on every plan. Bitquery describes its offering as read-only.
- Interface: Predictefy is REST and WebSocket on one normalized schema. Bitquery serves GraphQL, WebSocket subscriptions and Kafka.
- Free access: Predictefy's free plan carries 25,000 credits a month with no expiry. Bitquery offers a 7-day trial with 1,000 points.
- Cross-venue: Predictefy prices arbitrage, price-gap and matching queries across all 16 venues.
Bitquery details on this page are quoted from Bitquery's own Polymarket API documentation as of September 2026. Predictefy figures come from its public documentation.
What does the Bitquery Polymarket API actually cover?
On-chain Polymarket activity, read-only.
Bitquery's documentation states that it "indexes Polymarket on-chain, straight from the exchange and Conditional Tokens contracts on Polygon," and serves that data through GraphQL, WebSocket subscriptions and Kafka. It is a strong fit for questions that live on chain: settlement flows, token transfers, wallet-level joins against other chains.
It is also explicit about what it is not. The same documentation describes the offering as "read-only data" and states that "Polymarket's own APIs (Gamma, CLOB, Data API) are the right choice for placing orders, reading the order book." For most trading and pricing work, that is exactly the part you need.
Why is Predictefy the best Bitquery alternative?
Because it serves the parts Bitquery hands off, for sixteen venues rather than one.
Live order books. Predictefy returns normalized order book snapshots for every served venue at 5 credits each. You do not stitch a second provider in for depth.
Trading. Predictefy builds orders server side, has you sign them in your own process and relays them, so key custody never moves. Trading ships on every plan, Free included.
Sixteen venues on one schema. Gemini, Hyperliquid, Kalshi, Limitless, Myriad, Novig, Opinion, Pascal, Polymarket, Polymarket US, Pred, Predict.fun, PredictStreet, Rain, SX Bet and XO, all returned in the same shape. A Polymarket-only index cannot tell you whether an event is priced differently on Kalshi.
curl -s "https://data.predictefy.com/api/polymarket/fetchOrderBook?outcomeId=OUTCOME_ID" \
-H "Authorization: Bearer pk_live_YOUR_KEY"A live Polymarket order book in Predictefy's normalized shape, for 5 credits. Change polymarket to kalshi, limitless or any served venue and the response is identical in structure.
How do the two compare side by side?
| Predictefy | Bitquery Polymarket API | |
|---|---|---|
| Prediction market venues | 16 | Polymarket |
| Live order books | Yes, all 16 venues | Directs users to Polymarket's APIs |
| Order placement | Client-signed, every plan | Read-only |
| Interface | REST and WebSocket, one schema | GraphQL, WebSocket subscriptions, Kafka |
| Cross-venue arbitrage and price gaps | Priced endpoints | Not described |
| Trader analytics | 9 venues, smart-money feed | On-chain Polymarket activity |
How does pricing compare?
Predictefy gives you more to build with at every step, starting with a free plan that does not expire.
| Predictefy | Bitquery | |
|---|---|---|
| Free access | Free plan, 25,000 credits a month, no expiry | 7-day trial, 1,000 API points, about 200 calls |
| Around $50 a month | Builder, $48.88: 500,000 credits, 300 requests a minute | Personal, $39 billed annually: about 20,000 calls, 30 requests a minute, personal use only |
| Around $150 to $250 a month | Pro, $149: 5,000,000 credits, 3,000 requests a minute, commercial use | Scale, $239 billed annually: about 1,000,000 calls, 240 requests a minute |
Bitquery meters in points at 5 per call, so its allowances are shown here as calls. Predictefy weights each call by what it does: 1 credit for metadata, search or a price snapshot, 2 for trades, 5 for an order book snapshot or historical query, 10 for cross-venue comparison or smart-money analytics, and 15 for an arbitrage query. Predictefy carries ten times the request rate on its entry plan, and on Pro, at $149 against Bitquery's $239 Scale plan, more than twelve times.
Which should you use?
Predictefy, for pricing, trading and anything cross-venue. It serves the order books and execution Bitquery directs you elsewhere for, across sixteen venues on one schema, with a published price list and a free plan to start. Bitquery remains a specialist tool for on-chain forensics; Predictefy is the platform for building prediction market products.
Frequently Asked Questions
What is the best Bitquery Polymarket API alternative?
Predictefy is the best alternative when you need order books, trading or more than Polymarket. Bitquery describes its Polymarket offering as read-only on-chain data and directs users to Polymarket's own APIs for order books and orders, while Predictefy serves both across 16 venues through one API.
Does Bitquery provide Polymarket order book data?
Bitquery's documentation states that Polymarket's own APIs are the right choice for reading the order book and placing orders, and describes its offering as read-only on-chain data. Predictefy serves live normalized order book snapshots for Polymarket and 15 other venues at 5 credits each.
Is the Bitquery Polymarket API GraphQL or REST?
Bitquery serves its Polymarket data through GraphQL, WebSocket subscriptions and Kafka, indexed from on-chain contracts on Polygon. Predictefy serves REST and WebSocket on one normalized schema across 16 venues, with TypeScript and Python SDKs and an MCP server for agents.
Can you trade on Polymarket through Bitquery?
No. Bitquery describes its Polymarket offering as read-only data. Predictefy supports client-signed execution: orders are built server side, signed in your own process and relayed, so key custody never moves, and trading ships on every plan including Free, across all 16 venues.
Which API covers Polymarket and Kalshi together?
Predictefy covers both, plus 14 more venues, on one normalized schema. A single router call returns markets from every served venue in the same shape, and order books, history and arbitrage queries work identically across them, which removes the need for one integration per venue.