If you are building tools for the Murder Mystery 2 community — a Discord bot, a trading calculator, a value tracker, or an automated marketplace — reliable and fast data is essential. The RBLXValue API v2 is now live, featuring dedicated server infrastructure, optimized JSON payloads, new historical tracking endpoints, and sub-22ms internal processing times.

What’s New in API v2?

API v2 is a major upgrade designed for high stability and better developer experience. While v1 remains supported as a legacy release, v2 introduces key architectural improvements:

• Dedicated Infrastructure: Moved to dedicated server hardware to bypass proxy bottlenecks and guarantee high uptime.
• Acronym Search: Search items using community shorthand (e.g., hw for Heart Wand).
• Value History & Snapshots: Track item valuations over time with dedicated 1Y and ALL historical snapshot endpoints.
• Redesigned Documentation: Rebuilt at docs.rblxvalue.com with comprehensive code examples in multiple languages.

Core Endpoints

The v2 API expands machine-readable access to six core endpoints.

Items

The /v2/items/{slug} endpoint returns MM2 items with values from both MM2Values and Supreme Values, weighted estimates, category, demand rating (0–10), trend stability, and acronym mapping.

GET https://api.rblxvalue.com/v2/items/seer
GET https://api.rblxvalue.com/v2/items/hw

Sets & Smart Lookup

The /v2/sets endpoint features smart lookup logic that resolves query terms in order of precedence:

1. Exact Match: Query by set slug or name with or without the -set suffix (e.g., corrupt and corrupt-set both work).
2. Cross-Source Item Resolution: Search by any item inside a set. Since set names vary between MM2Values and Supreme Values, searching either item name maps to the correct combined set (e.g., both celestial and constellation return the Celestial/Constellation set).
3. Partial Match: Falls back to partial matching on set names, then on individual item names.

GET https://api.rblxvalue.com/v2/sets?slug=corrupt-set
GET https://api.rblxvalue.com/v2/sets?slug=celestial

GET https://api.rblxvalue.com/v2/sets
GET https://api.rblxvalue.com/v2/sets?slug=corrupt

Value History

The /v2/history/{slug} endpoint provides historical value logs for single items, supporting flexible time periods and data source filtering.

GET https://api.rblxvalue.com/v2/history/seer?period=1Y

Profiles & Inventories

Track user metrics and MM2 inventories directly. The /v2/profile/{username_or_id} and /v2/inventory/{username_or_id} endpoints return total user value, item breakdowns, and account statistics.

GET https://api.rblxvalue.com/v2/profile/UN6107617
GET https://api.rblxvalue.com/v2/inventory/UN6107617

Metadata

Check scraper health, platform totals, and snapshot timestamps via /v2/meta.

GET https://api.rblxvalue.com/v2/meta

Authentication & Headers

All API v2 requests require an API key passed via the X-Api-Key HTTP header or as a query parameter (?key=). You can generate your key at rblxvalue.com/developer by logging in with your Roblox account via official Roblox OAuth 2.0.

X-Api-Key: rbx_your_key_here

Plans and Rate Limits

We offer flexible tiers to support projects of any size:

• Free Tier — Standard rate limit, 1 API key, requires attribution in your project footer/embeds.
• Paid / Pro Tier — 1,000 requests per minute, up to 3 keys, no credit required. Perfect for production bots and public web tools.
• Marketplace Tier — 5,000 requests per minute, high-concurrency access for commercial platforms.
• Hobby / Mobile Tier — Custom throughput capacity optimized for mobile app and rewarded-access integrations.

API v1 Legacy Notice

If you are currently using API v1 (/api/v1/...), your integration will continue to work without interruption. However, v1 is now officially marked as Legacy and will not receive new features. We strongly recommend migrating all existing and new projects to v2 for improved reliability and faster endpoints.

Getting Started

Ready to build? Log in with your Roblox account, grab your v2 API key, and test out the new endpoints in under two minutes.