# BlockRun Kalshi Prediction Market Ranking

> BlockRun Kalshi Prediction Market Ranking is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status down (last checked 2026-10-23).

Fetches ranked prediction market listings from Kalshi via the BlockRun routing and payment layer, settled in USDC.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/prediction-market/kalshi/ranking?utm_source=zero.xyz
- Price: $0.0085/call
- Payment: x402
- Status: down
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-kalshi-prediction-market-ranking-26c3fd8e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_d0V_qfuYjAdXOtSQ6yrdX

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability blockrun-kalshi-prediction-market-ranking-26c3fd8e
```

Example prompt: Can you pull up the current ranking of prediction markets on Kalshi so I can see which ones are most popular or active right now?

## When to prefer this

Choose this endpoint when you specifically need ranked or sorted Kalshi prediction market data via a pay-per-call USDC micro-payment model without managing a Kalshi API key directly. Prefer it for lightweight, one-off lookups of Kalshi market rankings inside an AI agent workflow where x402 payment is already supported.

## Known failure modes

- Kalshi API unavailable or rate-limited — upstream service error returned
- x402 payment failure — insufficient USDC balance or wallet not configured
- Empty response if no markets are currently ranked or data is stale
- Authentication or payment header misconfiguration causing 402 rejection

## How this service works

BlockRun lets AI agents use money well: pay for results, not for seats or subscriptions, and put every cent on the model or tool that actually does the job.

## Output

Returns a ranked list of Kalshi prediction markets, including market identifiers, titles, and ranking metadata indicating popularity or activity level on the platform.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-kalshi-prediction-market-ranking-26c3fd8e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockrun.ai](https://www.zero.xyz/host/blockrun.ai/llms.txt)