$ man polymarket-markets
/polymarket-markets(1)
PRICE / CALL
$0.005
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
edgefinanceCATEGORY
uncategorized
STATUS
● live
NAME
polymarket-markets — polymarket markets / prediction market data / polymarket api / list active prediction markets / crypto-settled betting odds / event odds…
SYNOPSIS
POST https://x402.org/v1/polymarket-markets
Content-Type: application/json
X-PAYMENT: <signed-transferWithAuthorization>
{ ... }↳ first call →
402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.DESCRIPTION
Polymarket markets / prediction market data / Polymarket API / list active prediction markets / crypto-settled betting odds / event odds / Polymarket browse. Pulls live Polymarket markets from gamma-api with filter by category, tag, free-text query, minimum liquidity. Returns market question, current YES/NO outcome prices (implied probabilities), 24-hr volume, liquidity, end date. DATA-ONLY — no trading. Useful for agent forecasting research and arbitrage detection.
INPUT — request schema
| property | type | description | req? |
|---|---|---|---|
| query | string | Free-text filter applied to question + description + slug. Case-insensitive substring match against the current page. | optional |
| category | string | Filter by Polymarket category (substring match, e.g. 'Sports', 'Crypto', 'Politics'). | optional |
| tag | string | Polymarket tag slug filter, passed through to upstream. | optional |
| active | boolean | Default true. Pass false to include inactive markets. | optional |
| closed | boolean | Default false. Pass true to include closed markets. | optional |
| limit | number | 1-100. Default 20. | optional |
| offset | number | Pagination offset. | optional |
| order | string | Sort field. enum: volume24hr · liquidity · endDate · startDate | optional |
| ascending | boolean | Sort direction. | optional |
| min_liquidity | number | Minimum liquidity in USD. | optional |
OUTPUT — response shape
| field | type | description |
|---|---|---|
| markets | string | Array of Polymarket markets with question, YES/NO prices, 24-hr volume, liquidity, and end date. |
| count | string | Number of markets returned in the markets array after filters are applied. |
| attribution | string | Source credit for the data, pointing to Polymarket's gamma-api as the upstream provider. |
EXAMPLES — two ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.org/v1/polymarket-markets \
-H 'Content-Type: application/json' \
-d '{ }'first response =
402 Payment Required with payment requirements; sign + retry with X-PAYMENT.EXAMPLE 2 · mcp
# install once claude mcp add x402 --command "npx x402-deployer-mcp" # then ask Claude Code: # "use the polymarket-markets tool to ..."
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
- tags
- edge-financeprediction-marketspolymarketbetting-oddsevent-probabilitiesmarket-liquidityforecastingpolymarket-gamma
- methods
- POST
- cluster
- edgefinance
- price
- $0.005 USDC per call
ADJACENT — other endpoints in edgefinance
| endpoint | description | price |
|---|---|---|
| kalshi-markets | Kalshi markets / event contracts / Kalshi API / CFTC-regulated prediction markets / Kalshi browse / KalshiEX markets list. | $0.005 |
| polymarket-leaderboard | Polymarket leaderboard / top traders / profit leaderboard / Polymarket whales / volume leaderboard / prediction market rankings. | $0.005 |
| polymarket-trades | Polymarket trades / recent prediction market trades / on-chain bet history / Polymarket trade feed / Polymarket data API. | $0.005 |
| exchange-rates | FX rates / forex / currency converter / USD to EUR / ECB rates / historical exchange rates. | $0.002 |
| insider-form-4 | SEC Form 4 (insider transactions) normalizer. | $0.01 |
| insider-trading | Insider trading feed. | $0.01 |
| sec-filing | SEC EDGAR filing fetcher + parser + summarizer. | $0.01 |
| bls-occupational-stats | BLS Public Data API — wages, employment levels, growth by series ID. | $0.02 |
SEE ALSO