# Nerf Radar Changes API > Nerf Radar Changes API is a paid API for AI agents from nerfradar.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10). Returns a list of buffs, nerfs, adjustments, and fixes for specific heroes, champions, weapons, or abilities across major live-service games. ## Facts - Endpoint: GET https://nerfradar.com/api/changes?utm_source=zero.xyz - Price: $0.02/call - Payment: x402 - Status: unknown - Last checked: 2026-10-10 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/nerf-radar-changes-api-97b6e630 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9XwxFaB3PPvuc2iOXB40F 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 nerf-radar-changes-api-97b6e630 ``` Example prompt: Look up all nerfs to Ambessa in League of Legends and show me the stat changes — before and after values — from the most recent patches. ## When to prefer this Choose this endpoint when you need structured, queryable patch change data for a specific champion, hero, weapon, or ability across supported games (WoW Forever, WoW Retail, CS2, LoL, VALORANT, Deadlock, WARDOGS). Prefer it over scraping patch note pages when you need machine-readable before/after stat deltas, change type classification (buff/nerf/fix/adjust), or historical patch coverage for a named target. ## Known failure modes - Missing required 'target' query parameter returns an error - Unrecognized game slug or change_type enum value may return empty results or an error - Target name not found in any patch returns count:0 with empty results array - Requesting more than 500 results (limit cap exceeded) may be rejected or capped - Payment failure (x402 protocol) blocks the request before it reaches the API ## How this service works Every buff, nerf and fix for World of Warcraft: Forever, World of Warcraft (Retail), Counter-Strike 2, League of Legends, VALORANT, Deadlock and WARDOGS. ## Output Returns a JSON object with a results array of individual change records (each with before/after stat values, ability name, change type, patch version, publication date, and a human-readable summary), plus a history array showing the aggregate patch history for the queried target, total change count, and whether the result set was truncated. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "type": "object", "required": [ "target" ], "properties": { "game": { "type": "string", "description": "Optional game slug: world-of-warcraft-forever, world-of-warcraft, counter-strike-2, league-of-legends, valorant, deadlock or wardogs" }, "type": { "type": "string", "description": "Optional change_type filter: buff, nerf, adjust, new, removed or fix" }, "limit": { "type": "number", "description": "Maximum number of results (default 200, up to 500)" }, "target": { "type": "string", "description": "Name to look up, for example Druid, Holy Strike, K'Sante, Warden or Rat King" } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "count": 1, "order": "Target-name matches first, then other mentions; each group newest first.", "query": { "game": "league-of-legends", "type": null, "limit": 200, "target": "Ambessa" }, "total": 7, "history": [ { "game": "league-of-legends", "steps": [ { "changes": 1, "version": "26.20", "patch_id": "lol-26-20", "published_at": "2026-10-06T18:00:00.000Z" }, { "changes": 3, "version": "26.17", "patch_id": "lol-26-17", "published_at": "2026-08-25T18:00:00.000Z" }, { "changes": 1, "version": "26.15", "patch_id": "lol-26-15", "published_at": "2026-07-28T18:00:00.000Z" }, { "changes": 2, "version": "26.14", "patch_id": "lol-26-14", "published_at": "2026-07-14T18:00:00.000Z" } ], "newest": "2026-10-06T18:00:00.000Z", "oldest": "2026-07-14T18:00:00.000Z", "target": "Ambessa", "page_url": "https://nerfradar.com/history/league-of-legends/ambessa", "patch_count": 4, "change_count": 7 } ], "results": [ { "id": "lol-26-20-003", "game": "league-of-legends", "stat": "Damage", "after": "5–25 (+20% bonus AD)", "match": "target", "patch": { "id": "lol-26-20", "title": "League of Legends Patch 26.20 Notes", "version": "26.20", "page_url": "https://nerfradar.com/patch/lol-26-20", "source_url": "https://www.leagueoflegends.com/en-us/news/game-updates/league-of-legends-patch-26-20-notes/", "published_at": "2026-10-06T18:00:00.000Z" }, "scope": "Summoner's Rift", "before": "5–30 (+25% bonus AD)", "target": "Ambessa", "ability": "Passive - Drakehound's Step", "summary": "Damage on Ambessa's Drakehound's Step (Passive) decreases from 5–30 (+25% bonus AD) to 5–25 (+20% bonus AD).", "category": "champion", "change_type": "nerf", "label_basis": "numbers", "source_text": "Damage: 5 - 30 (+25% bonus AD) → 5 - 25 (+20% bonus AD)" } ], "truncated": false } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nerf-radar-changes-api-97b6e630/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from nerfradar.com](https://www.zero.xyz/host/nerfradar.com/llms.txt)