CallIt

The prediction hub for Sui, built on DeepBook Predict.

CallIt turns DeepBook Predict's on-chain prediction markets into a full suite of products people actually want to use:

• a pro trading terminal
• a social arena
• automated strategy vaults
• a liquidity pool
• permissionless keeper infrastructure

Every market is oracle-settled and every action is wallet-signed, so the app is non-custodial end to end.

CallIt composes DeepBook Predict rather than competing with it. Every Arena bet is a native Predict position and every vault round is book liquidity, so the app drives volume and liquidity straight back to the protocol.

What is in the box

• Eight Move packages: a shared async vault, five automated strategy vaults, a social arena, and a keeper reward vault.
• Three backend services: a checkpoint indexer, a strategy round runner, and a settle-redeem keeper.
• One frontend: a TanStack Start app spanning all five products plus portfolio, leaderboard, and a risk console.
• One deployment manifest feeds every service, so on-chain identifiers never drift across the stack.

The five products

Product	What it is
Trade	Open and close prediction positions on live markets. Simple (Yes/No, fixed risk) and Pro (Up/Down/Range, strikes, expiries, live prices) over the same Predict markets.
Arena	A social layer. A creator posts a public call backed by a locked PLP bond; anyone backs or fades it by opening their own native Predict position. Track records and a leaderboard.
Earn	Supply DUSDC to the PLP pool that takes the other side of every position. Share value moves with the book.
Strategies	Five automated, on-chain-settled vaults that run a set play each round: Tail-Hedge PLP, PLP Collar, Short Strangle, Bullish Upside, and Range Ladder.
Keeper	Permissionless settle-redeem infrastructure, with a read-only operations dashboard.

Contracts

Eight Move packages on Sui. The base vault holds capital and runs the queues; each strategy is its own package that deploys into DeepBook Predict per round; the arena and reward vault layer social and incentive logic on top.

Package	Source	Role
base_vault	packages/base_vault	Shared single-asset cash vault. Mints base shares against deposits and runs the asynchronous deposit and withdrawal queues every strategy settles through.
hedged_plp_strategy	packages/strategies/hedged_plp	Tail-Hedge PLP vault. Supplies pool liquidity alongside a budget-limited downside position.
plp_collar_strategy	packages/strategies/plp_collar	PLP Collar vault. Pool liquidity inside a bought floor and a sold cap.
strangle_strategy	packages/strategies/strangle	Short Strangle vault. Profits when the price finishes between two strikes.
bullish_upside_strategy	packages/strategies/bullish_upside	Bullish Upside vault. Earns a premium from a capped-bullish position.
range_ladder_strategy	packages/strategies/range_ladder	Range Ladder vault. A ladder of range positions around spot.
arena	packages/arena	Social calls. A creator bonds PLP and posts a direction; others back or fade with their own Predict positions. The bond returns to the creator at settlement.
keeper_rewards	packages/keeper_rewards	Keeper incentive vault. Pays a fixed, operator-funded tip per redemption.

The vaults follow an ERC-7540 style async model: capital deploys at the start of a round, and deposits and withdrawals made mid-round queue and settle off the round's final result rather than a mid-round estimate.

Services and app

Component	Source	Role
backend	services/backend	Bun, Drizzle, and Postgres. A gRPC checkpoint indexer plus read APIs for the app and leaderboard.
operator	services/operator	Strategy round runner that opens and settles rounds, plus the deploy and config-sync scripts.
keeper	services/keeper	Permissionless worker that redeems settled positions, with a read-only status API for the dashboard.
web	web	TanStack Start frontend for every product surface. See web/README.md.

Repository layout

packages/            Move contracts (Sui)
  base_vault/        Shared cash vault + deposit/withdrawal queues
  strategies/        hedged_plp · plp_collar · strangle · bullish_upside · range_ladder
  arena/             Social calls (back / fade / claim)
  keeper_rewards/    Keeper incentive vault
services/
  backend/           Bun + Drizzle/Postgres, checkpoint indexer + read APIs
  operator/          Strategy round runner (start/settle) + deploy + sync-config
  keeper/            Settle-redeem worker + status API
web/                 TanStack Start frontend
docs-site/           Mintlify documentation (user guide + technical guide)
docker-compose.yml   Full local stack

Quick start

Requires Bun, Docker, and the Sui CLI for contracts.

Full stack

docker compose up --build

Service	URL	Notes
web	http://localhost:3000	TanStack Start app
backend API	http://localhost:8799	indexer + read APIs
keeper status	http://localhost:8801	dashboard API
postgres	localhost:5439	database callit

Frontend only

cd web && bun install && bun run dev

Services in development

cd services/backend  && bun install && bun run dev    # API + indexer
cd services/keeper   && bun install && bun run dev    # settle-redeem worker
cd services/operator && bun install                   # bun run sync-config after a deploy

Contracts

cd packages/<package> && sui move build && sui move test

Deploy and configuration

services/operator publishes and bootstraps the packages and writes deployment.<network>.json, the single source of truth for every on-chain identifier. bun run sync-config then generates web/src/lib/deployment.ts and patches each service's environment from that manifest.

cd services/operator
bun run deploy        # publish contracts, write deployment.<network>.json
bun run sync-config   # propagate identifiers to every service

Never hand-edit the generated deployment files.

Testnet targets

Target	Value
Predict server	https://predict-server.testnet.mystenlabs.com
Predict package	0xf5ea2b3749c65d6e56507cc35388719aadb28f9cab873696a2f8687f5c785138
Predict object	0xc8736204d12f0a7277c86388a68bf8a194b0a14c5538ad13f22cbd8e2a38028a
Quote asset (DUSDC)	0xe95040085976bfd54a1a07225cd46c8a2b4e8e2b6732f140a0fc49850ba73e1a::dusdc::DUSDC

Documentation

• docs-site is the Mintlify documentation, split into a consumer user guide and a developer technical guide. Run cd docs-site && mint dev to preview.
• OVERVIEW.md covers the product and architecture in more depth.

Principles

• Non-custodial. No service holds keys or signs for users. Every chain write is wallet-signed in the browser.
• The oracle is the source of truth. Settlement follows from the price oracle. Contracts have no discretionary settle step.
• One manifest, every config. A single deployment manifest feeds the whole stack.
• Fixed risk, never margin. A prediction's loss is capped at its premium. No borrowing, no liquidation.