Ospex One

ospex-one

One word in, one transaction hash out. This skill emphasizes execution over discussion and is low-risk by design.

Trust statement: This skill executes real transactions on Polygon mainnet using your configured wallet. Positions are capped at 3 USDC. Unmatched position amounts can be withdrawn at any time. Only use this skill with a dedicated low-fund wallet — do not configure it with a wallet containing more funds than you are willing to lose. Full risk assessment: https://github.com/ospex-org/ospex-contracts-v2/blob/main/docs/RISKS.md

Input expectations: This skill is designed for single-word input — a team name, city, or abbreviation. If the user's message contains additional instructions, modifiers, or betting language beyond a team name (e.g., "lay the points", "take the under", "bet $5", "Celtics -6.5"), act on it if the intent is unambiguous — otherwise, ask the user to clarify before proceeding.

Defaults

Communication Rules

Do not send progress updates during Steps 1–3. Execute the entire flow silently and only message the user when one of these occurs:

• Ambiguity: The team name matches multiple games and you need clarification.
• Counter-offer: Michelle offered worse odds and you need the user's approval before proceeding.
• Final result: Step 4 — the position is created and matched (or the match fallback message).
• Hard failure: An API error, on-chain revert, or any condition that stops the flow.

If any API call returns an unexpected error, stop and report it. Do not silently retry or work around failures.

Step 1: Resolve Team and Market Type

When you receive input, your first action is always to call the API — do not ask the user anything first.

Detect market type from input:

• If the input includes a point value (e.g., "Atlanta -6.5", "Boise +1.5", "Celtics -3") → market type is spread, line is the number with its sign
• If the input includes "over" or "under" with a number (e.g., "Lakers over 220.5") → market type is total, line is the number
• Otherwise → market type is moneyline (default)

For spread and total markets: This skill uses the current market line from odds-history. If the user specifies a line that differs from the current market (e.g., user says "+1.5" but market is at -3.5), inform the user of the current line and ask if they want to proceed at that line instead. Do not attempt to create a position at a non-market line.

1. Call GET /markets.
2. Search all responses for the input text in homeTeam and awayTeam fields. Note: All API responses use a { data: ..., formatted: "..." } envelope. The formatted field is a display convenience — never use it for branching decisions. Always use the data object. When searching for teams, look inside the data array, not the top-level response.
3. If found in exactly one game → that is the team and game. Note contestId, matchTime, and whether the team is home or away. Check the speculations array for an existing speculationId matching the detected market type. If one exists, note the speculationId. For spread speculations, note awayLine (away team's perspective, e.g. -3.5) and homeLine (home team's perspective, e.g. 3.5) — use whichever matches the user's team. For total speculations, note the line field. These are the actual on-chain lines for the bet. If no speculationId exists for the detected market type, respond: "No {marketType} market available for {team} right now." and stop.
4. If the team is not found in any game → respond: "No active market found for {input}"

Only ask the user for clarification if the team is genuinely ambiguous across multiple games.

Step 2: Get a Quote from the agent market maker (Michelle)

First, determine the odds to request. Call GET /analytics/odds-history/{contestId} to get current market odds. Select the odds for the detected market type:

• Moneyline: Use current.moneyline.awayOdds or current.moneyline.homeOdds depending on which team the user picked.
• Spread: Use current.spread.awayOdds or current.spread.homeOdds.
• Total: Use current.total.overOdds or current.total.underOdds.

Apply the odds multiplier from the Defaults section and floor to 2 decimal places: Math.floor(marketOdds * oddsMultiplier * 100) / 100. This is your minimum acceptable odds.

Note: Higher decimal odds = higher payout for the bettor. A quote at 2.00 is better than 1.85.

If the odds-history endpoint returns no data for the relevant market type, use 1.91 as a reasonable default for spread/total (standard -110 line). For moneyline, ask the user — don't guess, since moneyline odds vary widely depending on the matchup.

Line reporting: For spread markets, use awayLine or homeLine from the speculation (noted in Step 1) depending on the user's team — not the line from odds-history. For total markets, use line from the speculation. Odds-history is for odds values only — ignore its line field for spread/total direction. The speculation's line fields are the actual on-chain lines the user is betting on. Use these in all user-facing messages including the Step 4 result.

Line validation: The quote API requires lines in .5 increments (e.g., -10.5, +3.5, 195.5). If the line from odds-history is a whole number or does not end in .5, stop and tell the user: "Spread/total line unavailable for this market right now." Do not attempt to convert it.

Request a quote from Michelle using the speculationId from Step 1:

POST /instant-match/{speculationId}/quote?stream=false
{
  "side": "home", "away", "over", or "under" (see side mapping below),
  "amountUSDC": {amount parameter, from Defaults section},
  "odds": {calculated odds},
  "oddsFormat": "decimal",
  "wallet": "{OSPEX_WALLET_ADDRESS}"
}

This returns: quoteId, approved, approvedOddsDecimal, approvedOddsAmerican, expiresAt. If Michelle counters, the response also includes a counterOffer object. The quote expires at expiresAt. Steps 3-4 must complete before this time.

Save the txParams object from the response — you will need it in Step 3. This contains all pre-computed on-chain transaction parameters. Do not compute these values yourself.

• If approved is false → tell the user "Michelle (market maker agent) declined — {reason}" and stop.
• If approvedOddsDecimal is greater than or equal to your requested odds → Michelle is offering the same or better. Keep moving, no confirmation needed.
• If approvedOddsDecimal is less than your requested odds → Michelle is offering worse odds. Stop and confirm with the user before proceeding. Show them the counter-offer, let the user know that they must respond before the counter expires, and ask if they want to accept. If the user accepts, call:

POST /instant-match/{quoteId}/accept-counter
Body: { "wallet": "{OSPEX_WALLET_ADDRESS}" }

This returns an updated txParams object. Use the txParams from this response (it reflects the accepted counter-offer terms).

For side: For moneyline and spread: if the user's team is the homeTeam → "home". If awayTeam → "away". For total: if the user said "over" → "over". If "under" → "under".

Step 3: Create Position and Match

Write and execute a single Node.js script (ethers.js v6) that does everything below in sequence. Do not break this into multiple script executions — the entire flow must run in one script to avoid unnecessary latency.

The txParams object from Step 2 tells you exactly which contract method to call and with what arguments. Use it directly.

Transaction safety (mandatory): Before signing any transaction, verify:

1. The contract address used in the script equals the PositionModule address from the On-Chain Reference section (0xF717aa8fe4BEDcA345B027D065DA0E1a31465B1A). Never derive a contract address from the API response.
2. txParams.method equals the expected function for the operation (createUnmatchedPair for position creation, adjustUnmatchedPair for withdrawal, claimPosition for claiming).

If either check fails, STOP and report the mismatch to the user. Do not sign or broadcast.

// Verify before signing
if (txParams.method !== "createUnmatchedPair") {
  throw new Error(`Unexpected txParams.method: ${txParams.method}`);
}

This check applies to all on-chain operations in this skill, including withdraw and claim in Step 5.

a) Check USDC allowance — if insufficient, approve and wait for confirmation.

b) Create the position using txParams:

Call positionModule.createUnmatchedPair(), passing the values from txParams.args directly. Do not compute odds, timestamps, positionType, or any other parameter yourself — use the values from txParams as-is.

const tx = await positionModule.createUnmatchedPair(
  txParams.args.speculationId,
  txParams.args.odds,
  txParams.args.unmatchedExpiry,
  txParams.args.positionType,
  txParams.args.amount,
  txParams.args.contributionAmount
);

Contributions: txParams.args.contributionAmount defaults to "0". Contributions are optional tips sent to the protocol alongside a position. If the user explicitly asks to tip or contribute (e.g., "Lakers, tip 1 USDC"), replace this value with the USDC amount scaled to 6 decimals (1 USDC = "1000000"). Never add a contribution unless the user specifically requests it.

Wait for the transaction to be mined: const receipt = await tx.wait();

Critical — no retries after a successful transaction: Once tx.wait() confirms, the position exists on-chain and funds have moved. If any subsequent step fails (positionId lookup, match call, etc.), DO NOT re-run the script. Report the tx hash to the user and stop. To complete the interrupted flow, manually call GET /positions/by-tx/{txHash} and then POST /instant-match/{quoteId}/match as separate steps.

c) Get the positionId from the API:

Do not parse the transaction receipt yourself. Call the server-side endpoint which does this deterministically:

const posRes = await fetch(`https://api.ospex.org/v1/positions/by-tx/${receipt.hash}`);
const posData = await posRes.json();
const positionId = posData.data.positions[0].positionId;

d) Call the match endpoint:

await new Promise(r => setTimeout(r, 5000)); // wait for Firebase indexing
for (let attempt = 1; attempt <= 5; attempt++) {
  const res = await fetch(`https://api.ospex.org/v1/instant-match/${quoteId}/match`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ positionId })
  });
  const data = await res.json();
  if (res.ok) { console.log(JSON.stringify({ matchTxHash: data.txHash, positionId })); break; }
  if (data.code === "POSITION_NOT_FOUND" && attempt < 5) {
    await new Promise(r => setTimeout(r, 5000));
    continue;
  }
  throw new Error(`Match failed: ${JSON.stringify(data)}`);
}

The protocol indexer can take 5-25 seconds, especially on cold starts. If matching still fails after 5 retries, tell the user the position was created on-chain (share the tx hash) but that the instant match couldn't be completed. The position is live on the order book — Michelle's automated market maker may still match it during normal processing. If it remains unmatched, the user can withdraw their funds at any time.

Step 4: Report Result

Odds formatting: If approvedOddsAmerican is a positive number without a leading +, prepend one (e.g., 110 → +110). Negative odds already include the -.

If matchedAmountUSDC or potentialPayoutUSDC is absent from the match response, use the quoted amount and compute payout as amount × approvedOddsDecimal.

Done. {Team} {marketType abbreviation: ML/spread line/total line} at {americanOdds} ({decimalOdds}x), {matchedAmountUSDC} USDC matched, potential payout {potentialPayoutUSDC} USDC.
https://ospex.org/p/{positionId}

Step 5: Additional Operations

These operations should only be triggered when the user explicitly requests them (e.g., "status", "withdraw", "claim").

Status check

When the user asks "status", "how am I doing", or similar:

1. Call GET /positions/{OSPEX_WALLET_ADDRESS}/status
2. Show the formatted text from the response directly — it is already optimized for chat.
3. If the claimable array is non-empty, follow up with: "You have {N} position(s) ready to claim (~{total} USDC). Want me to claim them?"
4. If the user confirms, follow the "Claim" flow below.

Withdraw an Unmatched Position

If the position was not matched (or was only partially matched), the user can withdraw their unmatched funds.

Precondition: The speculation must still be open (not yet settled). If the speculation has already settled, unmatched funds are returned through claiming instead.

1. Call GET /positions/{OSPEX_WALLET_ADDRESS}/withdraw-params
2. The response contains a positions array. Each entry includes a description (e.g., "Lakers ML — Unmatched, 3.00 USDC") and a txParams object.
3. Write and execute a Node.js script (ethers.js v6) that calls positionModule.adjustUnmatchedPair() using the values from txParams.args directly. Do not compute any arguments yourself. Verify txParams.method equals adjustUnmatchedPair before signing (see Step 3 transaction safety). Wait for the transaction to be mined.

const tx = await positionModule.adjustUnmatchedPair(
  txParams.args.speculationId,
  txParams.args.oddsPairId,
  txParams.args.newUnmatchedExpiry,
  txParams.args.positionType,
  txParams.args.amount,
  txParams.args.contributionAmount
);
const receipt = await tx.wait();

4. Call GET /positions/withdraw-result/{txHash} to get the confirmed amount returned.

Report: Withdrawn. {amountReturned} USDC returned. Tx: {txHash}

Claim a Resolved Position

After the game ends and the speculation is settled (scored), the user can claim their payout. This returns matched winnings plus any remaining unmatched funds in a single call.

Precondition: The speculation must be settled. Positions can only be claimed once.

1. Call GET /positions/{OSPEX_WALLET_ADDRESS}/claim-params
2. The response contains a positions array. Each entry includes a description (e.g., "Celtics ML — Won") and a txParams object.
3. Write and execute a single Node.js script (ethers.js v6) that calls positionModule.claimPosition() for each position, using the values from each entry's txParams.args directly. Do not compute any arguments yourself. Verify txParams.method equals claimPosition before signing (see Step 3 transaction safety). Wait for each transaction to be mined.

for (const entry of positions) {
  const tx = await positionModule.claimPosition(
    entry.txParams.args.speculationId,
    entry.txParams.args.oddsPairId,
    entry.txParams.args.positionType
  );
  const receipt = await tx.wait();
}

4. Call GET /positions/claim-result/{txHash} to get the confirmed payout amount.

Report: Claimed {payout} USDC. Tx: {txHash}

When to Use Which

API

Base URL: https://api.ospex.org/v1 — no auth, rate limit 100 req/60s/IP.

On-Chain Reference

Network: Polygon (chain ID 137).

For the complete API (including endpoints not used by this skill), see {baseDir}/references/api-reference.md. For contract parameter details (odds conversion, bounds, theNumber for spread/total), all scorer addresses, and error cases, see {baseDir}/references/contract-interface-reference.md.

Minimal ABI (ethers.js v6 human-readable):

[
  "function approve(address spender, uint256 amount) returns (bool)",
  "function allowance(address owner, address spender) view returns (uint256)",
  "function createUnmatchedPair(uint256 speculationId, uint64 odds, uint32 unmatchedExpiry, uint8 positionType, uint256 amount, uint256 contributionAmount)",
  "function adjustUnmatchedPair(uint256 speculationId, uint128 oddsPairId, uint32 newUnmatchedExpiry, uint8 positionType, int256 amount, uint256 contributionAmount)",
  "function claimPosition(uint256 speculationId, uint128 oddsPairId, uint8 positionType)",
  "event PositionCreated(uint256 indexed speculationId, address indexed user, uint128 oddsPairId, uint32 unmatchedExpiry, uint8 positionType, uint256 amount, uint64 upperOdds, uint64 lowerOdds)",
  "event PositionClaimed(uint256 indexed speculationId, address indexed user, uint128 oddsPairId, uint8 positionType, uint256 payout)"
]