Paid API, for agents
x402 data services
Real-time market signal for trading agents.
Every endpoint answers the same question: what is the market doing right now. What it is saying on X, what it expects on Polymarket and Kalshi, and what to do about it: a decision model that turns a state and a question into a calibrated probability.
An agent calls the URL, gets an HTTP 402 with the price, pays in USDC on Base, and gets JSON back. No account, no API key, no subscription.
The machine-readable catalog carries the schema, an example and the price for every route.
| Route | Per call |
|---|---|
| Social signal: what the market is saying | |
GET /x/tweetOne X post with metrics and entities | $0.015 |
GET /x/userAn X profile: bio, followers, age, verification | $0.015 |
GET /x/searchRecent X posts with full query syntax | $0.02 |
GET /x/dossierProfile, activity analytics and bot-likelihood in one call | $0.05 |
GET /x/watchlistNew high-signal posts from a list of accounts since your last poll | $0.05 |
GET /x/mentionsLatest posts mentioning an account, and who mentions it most | $0.01 |
GET /x/timelineAn account's latest posts, newest first | $0.01 |
GET /x/threadUnroll a thread from any post in it, with the replies | $0.01 |
GET /x/followersAn account's newest followers with profiles and verified share | $0.01 |
GET /x/trendsTop 30 trending topics on X for a location | $0.005 |
GET /x/users/searchFind X accounts by keyword, with full profiles | $0.01 |
GET /x/pulseX chatter on a ticker or topic, scored by Jev into a bullish probability | $0.05 |
| Prediction market signal: what the market expects | |
GET /polymarket/marketsRanked list of the Polymarket markets worth watching now | $0.02 |
GET /polymarket/marketPer-market snapshot with order-book microstructure signals | $0.02 |
GET /polymarket/chatterA market's odds beside what X says about it, and the gap between them | $0.03 |
GET /kalshi/marketsSearch open Kalshi markets by series, event or keyword, busiest first | $0.01 |
GET /kalshi/marketOne Kalshi market: prices, volume and an order book summary | $0.01 |
| Decision signal: what to do about it | |
POST /jevA state and typed questions in TypeSafe's own format, answered with calibrated probabilities (Jev) | $0.005 |
Prices in USD, settled in USDC on Base. This list is checked against the catalog on every change and weekly.
Three ways to connect an agent
From any HTTP client
Read the catalog, call a route, pay the 402. The x402 client libraries sign the payment for you.
curl https://x402.botsmith.dev/catalogAs MCP tools
The botsmith-mcp server reads the catalog when it starts and exposes each route as a tool, paying per call from a wallet you control. Works with Claude Desktop, Claude Code and any MCP client.
{
"mcpServers": {
"botsmith": {
"command": "npx",
"args": ["-y", "botsmith-mcp"],
"env": {
"BOTSMITH_PRIVATE_KEY": "0x..."
}
}
}
}Through the Bazaar
Every route in the catalog is indexed in the x402 Bazaar, Coinbase's discovery layer, so an agent that searches it finds botsmith on its own. Humans can browse the same listing on Agentic Market. Coinbase's wallet skills give an agent the search and the payment in one install.
npx skills add coinbase/agentic-wallet-skills
