Opinion (OPN)

Opinion is the macro trader’s prediction market. Built on BNB Chain with a CLOB engine and AI-assisted oracles, it lets you trade directly on CPI prints, FOMC decisions, and employment data instead of using proxy assets like Bitcoin or gold. Full Python and TypeScript SDKs. $25M raised from Hack VC and Jump Crypto.

What Opinion Is

Opinion is a decentralized prediction exchange that turns macroeconomic insights into tradable contracts. Instead of speculating on Bitcoin as a proxy for a Fed rate cut, you trade the rate decision directly: “Will the Fed cut rates at the next FOMC meeting?” settles as a binary YES/NO contract at $1.00.

The platform runs on BNB Chain and uses a central limit order book (CLOB) — not an AMM — so traders place actual limit and market orders with precise price discovery. Settlement is fully on-chain, with an AI-assisted multi-agent oracle handling the parsing of unstructured economic data (policy statements, BLS releases, etc.) into clean settlement conditions.

Founded by Forrest Liu, Opinion raised approximately $25 million total, including a $20 million pre-Series A led by Hack VC and Jump Crypto in February 2026.

The Opinion Stack

Opinion’s architecture is organized into four layers:

This is structurally similar to the Agent Betting Stack — identity, wallet, trading, intelligence — but specialized for macro data markets.

Market Coverage

Opinion covers categories that most prediction markets ignore:

• Macroeconomic data — CPI, PPI, NFP, unemployment rate, GDP
• Central bank decisions — FOMC rate decisions, ECB, BOJ, BOE policy moves
• Geopolitical outcomes — Trade policy, sanctions, treaty actions
• Crypto events — Token launches, protocol milestones, pre-TGE markets
• Culture and politics — Select markets on elections and social trends

The macro focus is Opinion’s key differentiator. While Polymarket dominates politics/crypto and PredictIt owns US elections, Opinion targets the $600+ trillion global derivatives market by standardizing economic risk into binary contracts accessible to anyone with a wallet.

Fee Structure and Token

OPN is used for governance, fee optimization, and data service access.

API and SDK for Agent Builders

Opinion has the most complete developer toolkit of any macro-focused prediction market. Three access methods:

1. REST OpenAPI

Base URL: https://openapi.opinion.trade/openapi/

Authentication: API key via apikey header.

Fetch active markets:

import requests

API_KEY = "your_api_key"
BASE = "https://openapi.opinion.trade/openapi"
HEADERS = {"apikey": API_KEY}

def get_active_markets(limit=20):
    """Fetch active prediction markets sorted by 24h volume."""
    resp = requests.get(
        f"{BASE}/market",
        headers=HEADERS,
        params={
            "status": "activated",
            "sortBy": 5,   # sort by 24h volume
            "limit": limit,
        },
    )
    resp.raise_for_status()
    data = resp.json()
    return data["result"]["list"]

for m in get_active_markets(5):
    print(f"[{m['marketId']}] {m['marketTitle']} — "
          f"24h vol: ${float(m['volume24h']):,.0f}")

Get orderbook for a token:

def get_orderbook(token_id: str):
    """Get bids and asks for a specific outcome token."""
    resp = requests.get(
        f"{BASE}/token/orderbook",
        headers=HEADERS,
        params={"token_id": token_id},
    )
    data = resp.json()["result"]
    return data["bids"], data["asks"]

bids, asks = get_orderbook("0x1234...5678")
print(f"Best bid: {bids[0]['price']} ({bids[0]['size']} shares)")
print(f"Best ask: {asks[0]['price']} ({asks[0]['size']} shares)")

Get price history:

def get_price_history(token_id: str, interval="1d"):
    """Fetch daily candlestick data for a token."""
    resp = requests.get(
        f"{BASE}/token/price-history",
        headers=HEADERS,
        params={"token_id": token_id, "interval": interval},
    )
    return resp.json()["result"]["history"]

history = get_price_history("0x1234...5678")
for point in history[-5:]:
    print(f"  {point['t']} → ${point['p']}")

2. WebSocket Feed

Opinion provides real-time WebSocket streams for price updates, orderbook changes, and trade feeds. Documentation is available at docs.opinion.trade under the Developer Guide.

3. CLOB SDK (Python + TypeScript)

The full SDK supports market queries, order placement, position management, and on-chain operations.

Install:

# Python
pip install opinion-clob-sdk

# TypeScript
npm install @opinion/clob-sdk

Python SDK: Place an order and manage positions:

from opinion_clob_sdk import Client
from opinion_clob_sdk.model import TopicType, TopicStatusFilter

# Initialize client
client = Client(
    api_key="your_api_key",
    private_key="your_wallet_private_key",
)

# List active binary markets
response = client.get_markets(
    topic_type=TopicType.BINARY,
    status=TopicStatusFilter.ACTIVATED,
    page=1,
    limit=10,
)

if response.errno == 0:
    for market in response.result.list:
        print(f"{market.market_id}: {market.market_title}")

# Get market detail
detail = client.get_market(market_id=123, use_cache=True)
if detail.errno == 0:
    m = detail.result.data
    print(f"Title: {m.market_title}")
    print(f"Status: {m.status}")
    print(f"Condition ID: {m.condition_id}")

# Redeem winnings from a resolved market
tx_hash, receipt, event = client.redeem(market_id=123)
print(f"Winnings redeemed: {tx_hash.hex()}")

Error handling pattern:

from opinion_clob_sdk import InvalidParamError, OpenApiError
from opinion_clob_sdk.chain.exception import (
    BalanceNotEnough,
    NoPositionsToRedeem,
    InsufficientGasBalance,
)

try:
    result = client.place_order(order_data)
    if result.errno == 0:
        print("Order placed successfully")
    else:
        print(f"API error: {result.errmsg}")
except BalanceNotEnough:
    print("Insufficient USDT balance")
except InsufficientGasBalance:
    print("Need more BNB for gas")
except InvalidParamError as e:
    print(f"Bad parameter: {e}")

API Rate Limits

Documented at docs.opinion.trade. API key required for all endpoints.

Agent Infrastructure Angle

Opinion maps to Layer 3 — Trading and Layer 4 — Intelligence in the Agent Betting Stack:

• Macro data trading: The only prediction market with deep liquidity on economic indicators. An agent watching BLS releases or Fed statements can execute trades programmatically via the CLOB SDK.
• AI oracle integration: Opinion’s multi-agent AI oracle is itself an example of agent infrastructure — autonomous systems parsing unstructured data into settlement triggers. Agent builders can study this architecture for their own oracle designs.
• Yield on collateral: Unlike most prediction markets where capital sits idle, Opinion routes deposited funds through DeFi strategies on BNB Chain. An agent managing a portfolio across multiple markets benefits from passive yield.
• Cross-market arbitrage: Compare Opinion’s macro prices against Kalshi’s economic contracts or traditional derivatives pricing. The CLOB structure provides the order-level granularity needed for arb detection.

For wallet infrastructure to fund an Opinion-connected agent, see the Agent Wallet Comparison. For the complete API landscape, see the Prediction Market API Reference.

Strengths and Limitations

Strengths:

• Only prediction market with deep macro/economic coverage
• Full CLOB with limit orders — not AMM
• Python and TypeScript SDKs with order placement support
• AI-assisted oracle for complex settlement scenarios
• $25M in funding from Hack VC, Jump Crypto, Primitive Ventures
• Yield on deposited collateral via BNB Chain DeFi integration

Limitations:

• BNB Chain only — requires a Web3 wallet and BNB for gas
• OPN token experienced post-TGE selling pressure (high FDV vs. low float)
• Community concerns about airdrop allocation (3.5% initial allocation)
• Oracle risk — AI resolution on ambiguous economic data could produce disputes
• Unregulated — no CFTC or equivalent oversight
• Relatively new (mainnet launched late 2025)

Who Should Use Opinion

Opinion is the right platform if you’re building macro-focused trading agents or want to trade economic data releases directly instead of through proxy assets. The CLOB SDK makes it the most developer-friendly macro prediction market available.

It’s the wrong platform if you need CFTC regulation, fiat on-ramps, or political market depth.

Last verified: March 2026