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kalshi

kalshi is a skill for Claude Code, Codex from machina-sports/sports-skills. It costs 231 tokens per session (2,218 once invoked), scanned A, original, MIT.

A connection to Kalshi, a US-regulated exchange where people trade contracts on whether future events will happen. It provides public data about sports markets, events, trades, and price history.

In plain words
What is it for?
Use it to search sports markets, list today’s events, check open markets, view sport settings, and inspect trades or candlestick price data.
Why use it?
It removes the need to find and interpret Kalshi market data manually. It also helps avoid confusing market prices, which use a 0–100 scale, with traditional betting odds.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 264repo +2 changed 9d ago A scan Socket: passSnyk: warnSkillSpector: pass 231 tokens original MIT

Good fit Use it to search sports markets, list today’s events, check open markets, view sport settings, and inspect trades or candlestick price data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/machina-sports/sports-skills/kalshi
View source ↗ machina-sports/sports-skills sports-skills.sh
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add machina-sports/sports-skills --skill kalshi
Clone the repo
git clone --depth 1 https://github.com/machina-sports/sports-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for kalshi

README.md
[![agentmods](https://agentmods.dev/badge/skills/machina-sports/sports-skills/kalshi/github.svg)](https://agentmods.dev/skills/machina-sports/sports-skills/kalshi)
Your own site
<a href="https://agentmods.dev/skills/machina-sports/sports-skills/kalshi"><img src="https://agentmods.dev/badge/skills/machina-sports/sports-skills/kalshi/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for kalshi

Your own site · 80×15
<a href="https://agentmods.dev/skills/machina-sports/sports-skills/kalshi"><img src="https://agentmods.dev/badge/skills/machina-sports/sports-skills/kalshi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 231 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,218 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 30 Sept 2026
  • Snyk warn 30 Sept 2026
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00231 $0.02218
Opus 5.5 $0.00092 $0.00887
Sonnet 5.5 $0.00046 $0.00444
Haiku 4.5 $0.00023 $0.00222

Measured 9d ago against content hash 359ed90ff334, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kalshi scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate_params.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/kalshi/SKILL.md · 176 lines

How it starts

The opening of the file, as written. The whole thing — 176 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kalshi — Prediction Markets

Before writing queries, consult references/api-reference.md for sport codes, series tickers, and command parameters.

Quick Start

Prefer the CLI — it avoids Python import path issues:

sports-skills kalshi search_markets --sport=nba
sports-skills kalshi get_todays_events --sport=nba
sports-skills kalshi get_sports_config
sports-skills kalshi get_markets --series_ticker=KXNBA --status=open

Python SDK (alternative):

from sports_skills import kalshi

kalshi.search_markets(sport='nba')
kalshi.search_markets(sport='nba', query='Lakers')
kalshi.get_todays_events(sport='nba')
kalshi.get_sports_config()
kalshi.get_markets(series_ticker="KXNBA", status="open")

CRITICAL: Before Any Query

CRITICAL: Before calling any market endpoint, verify:

  • The sport parameter is always passed to search_markets and get_todays_events for single-game markets.
  • Prices are on a 0-100 integer scale (20 = 20% implied probability) — do not treat as American odds.
  • status="open" is used when querying markets to exclude settled/closed markets.

Without the sport parameter:

WRONG: search_markets(query="Leeds")           → 0 results
RIGHT: search_markets(sport='epl', query='Leeds') → returns all Leeds markets

Important Notes

  • On Kalshi, "Football" = NFL. For football/soccer (EPL, La Liga, etc.), use sport codes: epl, ucl, laliga, bundesliga, seriea, ligue1, mls, worldcup.
  • Formula 1 uses sport code f1 (drivers'/constructors' champion plus per-Grand-Prix race, podium, pole, fastest-lap, head-to-head and sprint series).
  • Market tickers are not always <event_ticker>-<suffix>. Kalshi mints some with a different stem, e.g. KXATP-26-SHA sits inside event KXATP-26USO (2026 US Open men's singles) next to KXATP-26USO-SIN. That is Kalshi's real ticker: pass it verbatim to get_market, and group markets by their event_ticker field, never by parsing the ticker.
  • Prices are probabilities. A last_price of 20 means 20% implied probability. Scale is 0-100 (not 0-1 like Polymarket).
  • Always use status="open" when querying markets, otherwise results include settled/closed markets.
  • Shared interface with Polymarket: search_markets(sport=...), get_todays_events(sport=...), and get_sports_config() work the same way on both platforms.

Read the full file on GitHub · 176 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago Changed · +19 lines 359ed90ff334
  2. 1mo ago Changed · +2 lines 712486a64c22
  3. 2mo ago First seen · 155 lines · 231 tokens per session scan A 45474d69be3e

Subscribe to this mod's changes

kalshi is a skill published in the GitHub repository machina-sports/sports-skills (264 stars, last pushed yesterday), licensed MIT. It adds 231 tokens to every session and 2,218 once invoked, about $0.0009 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Finance and fintech
Related

kalshi compared with skills from other repositories

kalshi next to 6 skills from other repositories
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