Precog

Precog Prediction Markets

Precog is a fully onchain prediction market protocol on Base. Anyone can create a market around a real-world question, fund it with liquidity, and trade outcome shares. Prices equal implied probabilities (0–1). Every action is a signed onchain transaction — no custody, no central party.

MATE is a non-monetary practice token (no real economic value). Markets denominated in MATE are safe to use for learning and experimentation. MATE can be claimed at matetoken.xyz.

What you can do here:

• Browse active prediction markets and outcome probabilities
• Get detailed market info including category and resolution criteria
• Quote, buy, and sell outcome shares using your local wallet
• Check your positions (shares held, net cost, trade history)

🚧 Coming soon: Native market creation — submit and fund new markets directly from this skill without visiting the web UI.

For full protocol documentation see PRECOG.md — it covers prediction markets 101, the LS-LMSR pricing curve, resolution via Reality.eth + Kleros, LP mechanics, MATE markets, and more.

Contract addresses and RPCs are built in — no config needed.

Networks

The default network is Base Sepolia (testnet). No flag needed for testnet — scripts connect to sepolia unless told otherwise.

Two networks are supported. Pass --network <name> to any script, or set PRECOG_NETWORK in your environment.

⚠️ Mainnet uses real funds. Before running any mainnet command, confirm the network with the user and show the contract address. Do NOT default to mainnet — always require an explicit --network mainnet flag or a PRECOG_NETWORK=mainnet env var set by the user.

Security and local state

• ~/.openclaw/.env — created by setup.mjs --generate. Stores PRIVATE_KEY in plaintext. Treat it like a wallet key file: restrict permissions (chmod 600) and back it up. Losing it means losing access to any funds in that wallet.
• No key is ever transmitted. Transactions are signed locally; only the signed transaction is broadcast to the RPC.
• Use a throwaway wallet. The MATE markets use a practice token with no real value — ideal for testing. Do not load a high-value key into this skill.
• Custom RPC risk. If you set PRECOG_RPC_URL, use only a trusted endpoint. An untrusted RPC can observe signed transaction contents (but cannot extract your private key from them).

⚠️ Run scripts sequentially. Parallel transactions share a nonce and will collide on-chain — run one script at a time.

⚠️ Do NOT create batch or automation scripts. Each transaction must be confirmed by the user individually; automated chains of trades bypass the confirmation step and can cause unintended financial loss.

⚠️ Do NOT edit skill scripts. The scripts are audited as a unit; silent edits could introduce bugs or security issues. If you find a bug, report it to the user so it can be fixed upstream.

⚠️ Always show script output verbatim in a fenced code block. The output contains exact amounts, prices, and suggested parameters that will be used in the next command — reformatting or summarizing it risks losing or distorting those values.

⚠️ Always run quote before buy or sell. The quote shows the exact cost/proceeds and the safe --max/--min slippage bounds. Show the full output to the user and wait for explicit confirmation before executing the trade.

⚠️ Never modify trade parameters. If a script fails, show the exact error and stop. Do not retry with a different share count or workaround — incorrect parameters can result in unintended trades. Token approval is handled automatically inside the scripts.

Wallet

Check status or create a new wallet:

node {baseDir}/scripts/setup.mjs [--network sepolia|mainnet]
node {baseDir}/scripts/setup.mjs --generate

The private key is saved to ~/.openclaw/.env and never printed. Only the address is shown. After generating, ask the user to fund the address with ETH (for gas) and the market's collateral token (for trading).

Example output (wallet exists and funded):

Wallet: 0x77Ffa97c2dcDA0FF6c9393281993962FA633d9E1

  ETH:  0.004210 ✓
  MATE: 81.2300 ✓

Example output (wallet exists, no funds):

Wallet: 0x77Ffa97c2dcDA0FF6c9393281993962FA633d9E1

  ETH:  0.000000 ⚠️  needs gas
  MATE: 0.0000 (no funds)

List Markets

node {baseDir}/scripts/markets.mjs [--network sepolia|mainnet]
node {baseDir}/scripts/markets.mjs --all [--network sepolia|mainnet]

Example output:

Active Markets (2)

[4] Which AI model will be the top performer at the end of March?
    📈 Claude  67.3%  💰 MATE  📅 Mar 31, 2026

[5] Will ETH hit $5k by Q2?
    📈 YES  58.1%  💰 USDC  📅 Jun 30, 2026

Market Detail

When the user asks for more info / details about a specific market:

node {baseDir}/scripts/market.mjs --market <id> [--network sepolia|mainnet]

Shows the title, category, status, end date, collateral, and all outcome probabilities ranked by price. After showing the output, ask the user: "Would you like to see the resolution criteria?" If they say yes:

node {baseDir}/scripts/market.mjs --market <id> --criteria [--network sepolia|mainnet]

Example output (--market 4):

📊  Market 4  ·  AI / Leaderboard
Which AI model will be the top performer at the end of March?
🟢 Active  📅 Mar 31, 2026  💰 MATE

🥇  [1] Claude    16.3%
🥈  [2] Gemini    11.6%
🥉  [3] Grok      11.6%
    [4] ChatGPT   11.6%
    [5] Ernie     11.6%
    [6] GLM       11.6%
    [7] Kimi      11.6%
    [8] Qwen      11.6%
    [9] Other     11.6%

Example output (--market 4 --criteria):

📊  Market 4  ·  AI / Leaderboard
Which AI model will be the top performer at the end of March?
🟢 Active  📅 Mar 31, 2026  💰 MATE

🥇  [1] Claude    16.3%
🥈  [2] Gemini    11.6%
🥉  [3] Grok      11.6%
    [4] ChatGPT   11.6%
    [5] Ernie     11.6%
    [6] GLM       11.6%
    [7] Kimi      11.6%
    [8] Qwen      11.6%
    [9] Other     11.6%

📝  Resolution Criteria
This market will resolve based on the Text Arena AI Competition leaderboard
rankings at arena.ai as of March 31, 2026, 23:59:59 UTC.

Quote a Trade

Always run before buy or sell. Show the full output verbatim in a fenced code block. Ask the user to confirm before proceeding.

Choosing the right flag — CRITICAL

Do NOT guess share counts manually. Use the correct flag — the script computes the exact answer.

node {baseDir}/scripts/quote.mjs --market <id> --outcome <n> --shares <amount> --buy [--network sepolia|mainnet]
node {baseDir}/scripts/quote.mjs --market <id> --outcome <n> --cost <usdc>     --buy [--network sepolia|mainnet]
node {baseDir}/scripts/quote.mjs --market <id> --outcome <n> --price <0.0-1.0> --buy [--network sepolia|mainnet]
node {baseDir}/scripts/quote.mjs --market <id> --outcome <n> --all             --buy [--network sepolia|mainnet]

• --outcome is 1-based (1 = first outcome, usually YES)
• --buy shows only the buy side; --sell shows only the sell side; omit both to show both sides
• --network — sepolia (default) or mainnet; must match the network used for the subsequent buy/sell

Example output (--price 0.25 --buy):

📋  Quote — Market 4: Which AI model will be the top performer at the end of March?
─────────────────────────────────────────────────────────
  🎯  Outcome      : Claude
  🔢  Shares       : 312
  📊  Current prob : 14.2%

  🛒  Buy 312 shares
       💵  Cost           : ~98.4521 MATE
       📏  Price / share  : 0.3156 MATE
       📈  Prob after buy : 25.0%  (market moves up ↑)
       🏆  Max return     : 312.0000 MATE   (+213.5479 profit if "Claude" wins)

  ⚡  Suggested --max for buy  : 99.4366
─── Paste ALL lines above verbatim to the user before asking to confirm ───