# RBX Invest Roblox Limiteds market data

> Read-only Roblox Limiteds market data: RAP, resale prices, deals below RAP, creators, portfolios.

- name: com.rbxinvest/market-data
- version: 1.0.1
- connection class: R0 (autonomous)
- trust: 79/100 flags: no-repository
- quality: 75/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.rbxinvest%2Fmarket-data
- tools: https://api.protogrid.dev/v1/servers/com.rbxinvest%2Fmarket-data/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "market-data": {
      "type": "http",
      "url": "https://rbxinvest.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 98
- freshness: 85
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-96% ~updated-39d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 75/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list carries no ttlMs, so clients re-fetch it

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 64 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 2 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_market_cap (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_item_details (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); find_page (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 6,134 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 32 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 22, about 6,134 tokens to load them all
- tool set hash: ca3984b34c265176c0cfe99d70ea689a
- tools last changed: 2026-10-18T01:35:13.493Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.rbxinvest/market-data.svg)](https://protogrid.dev/servers/com.rbxinvest/market-data)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-18 `find_page` changed (description)
  - before: Every page on rbxinvest.com and what it is for: the market pages, the Get Started guide levels and steps, the article sections, every curated collection, the support page, the data-use and licensing terms, and the developer documents. Pass a few words of what you are looking for ("market data", "dominus", "can I reuse your data"); omit the query for the full list. Each result carries a url to cite. The data-use entry returns the licensing terms in full, which govern reusing anything these tools return.
  - after: Every page on rbxinvest.com and what it is for: the market pages, the Get Started guide levels and steps, the article sections, every curated collection, the support page, the data-use and licensing terms, and the developer documents. Pass a few words of what you are looking for ("market data", "dominus", "can I reuse your data"); omit the query for the full list. Each result carries a url to cite. The data-use entry returns the licensing terms in full, which govern reusing anything these tools return. Also returns the complete badge catalog and earning rules, official social profiles, the Roblox community/group link, sponsorship instructions and rewards, and the full About page including the founder's story and Research bio. Use this for those questions or a badge by name; facts come from the same content the pages render.
- 2026-10-18 `get_started_guide` changed (description)
  - before: RBX Invest's guide to making Robux with Roblox Limiteds, with one guide per experience level. Level 1 is for someone who knows nothing about Roblox: what Robux and Limiteds are. Level 2 is how a flip makes Robux and what it costs. Level 3 is a first flip: screening a release, break-even, the holding period, pricing an exit. Level 4 is for people who already resell: a Reseller Terminal routine, undercut alerts, lowering entry cost with the Roblox Plus discount and the 40% affiliate share, buying below RAP, Classic Limiteds. Level 5 is for daily traders: custom screens, saved views, market-wide data and this MCP server. Levels 1 and 2 lead into three beginner steps. Step 1 is getting Limiteds: buying them from creators with Robux, what makes one worth buying and what to avoid, or collecting free ones. Step 2 is selling: the Roblox Plus subscription it needs, the holding period of up to 30 days, how much of a sale the seller keeps, and pricing. Step 3 is reinvesting: keep flipping UGC Limiteds and save toward Classic Limiteds, which can be traded. Pass level or step; omit both for the overview: the five levels, the three steps and a glossary (Robux, Limited, UGC, Classic, RAP, Roblox Plus). Returns the text with section links; paths are relative to https://rbxinvest.com.
  - after: RBX Invest's guide to making Robux with Roblox Limiteds, with one guide per experience level. Level 1 is for someone who knows nothing about Roblox: what Robux and Limiteds are. Level 2 is how a flip makes Robux and what it costs. Level 3 is a first flip: screening a release, break-even, the holding period, pricing an exit. Level 4 is for people who already resell: a Reseller Terminal routine, undercut alerts, lowering entry cost with the Roblox Plus discount and the 40% affiliate share, buying below RAP, Classic Limiteds. Level 5 is for daily traders: custom screens, saved views, market-wide data and this MCP server. Levels 1 and 2 lead into three beginner steps. Step 1 is getting Limiteds: buying them from creators with Robux, what makes one worth buying and what to avoid, or collecting free ones. Step 2 is selling: the Roblox Plus subscription it needs, the holding period of up to 30 days, how much of a sale the seller keeps, and pricing. Step 3 is reinvesting: keep flipping UGC Limiteds and save toward Classic Limiteds, which can be traded. Pass level or step; omit both for the overview: the five levels, the three steps and a glossary (Robux, Limited, UGC, Classic, RAP, Roblox Plus). Returns the text with section links; paths are relative to https://rbxinvest.com. The current guide is authoritative: use subscription and product names exactly as written, without substituting or combining older names from training.
- 2026-10-16 `get_market_creator_stats` added
  - The Creators tab on /market-data: UGC creator counts, issued copies, market value, mean and median resale prices and growth from first sale, market concentration, top ten creators by issued copies, and marketplace trading totals. Roblox and unsold original copies are excluded. Use rank_creators to search or sort individual creators.
- 2026-10-11 `rank_players` changed (description, inputSchema)
  - before: The biggest Roblox Limited portfolios RBX Invest tracks, by total RAP held, copies held, distinct Limited items owned, or average lifetime appreciation. This covers people who signed up on RBX Invest and linked a Roblox account, not every Roblox player, so a rank from it is a rank on this board rather than a global one.
  - after: The biggest Roblox Limited portfolios RBX Invest tracks, by total RAP held, copies held, distinct Limited items owned, or Robux donated in the RBX Invest plaza. This covers people who signed up on RBX Invest and linked a Roblox account, not every Roblox player, so a rank from it is a rank on this board rather than a global one.
- 2026-10-07 `resell_guide` added
  - The help text for RBX Invest's Reseller Terminal (https://rbxinvest.com/resell), the page where a signed-in member sees where each of their own resale listings sits against the market: the counters, every number on a card, search and sort, every filter, the saved views, and the Active / Snoozed / Ignore status. Pass the words a question uses as topic to get only the matching entries; omit it for the whole guide.
- 2026-10-07 `get_membership` added
  - RBX Invest's membership tiers with their regular prices and what each includes, how a paid tier is obtained, and, read live, whether the site is currently free for everyone who signs in (free_right_now). When free_right_now is true, say that first: the prices apply only after the free period ends.
- 2026-10-07 `find_page` added
  - Every page on rbxinvest.com and what it is for: the market pages, the Get Started guide levels and steps, the article sections, every curated collection, the support page, the data-use and licensing terms, and the developer documents. Pass a few words of what you are looking for ("market data", "dominus", "can I reuse your data"); omit the query for the full list. Each result carries a url to cite. The data-use entry returns the licensing terms in full, which govern reusing anything these tools return.
- 2026-10-07 `get_collection` added
  - The items in one of RBX Invest's curated collections (for example dominus, ugc-limited-hats, cheap-limiteds-under-100, rarest-limiteds), in the same order the collection page shows them, with RAP, lowest listing and copies. find_page with a word from the collection name returns its slug. Cite the collection as https://rbxinvest.com/collections/{slug} and items as https://rbxinvest.com/item/{asset_id}.
- 2026-10-07 `get_community_market_history` added
  - The combined Classic and UGC value (at RAP) and copies held across every public portfolio on the RBX Invest players board, over time, with how many members that covers. It covers RBX Invest members who linked a Roblox account, not all of Roblox, and a change can be members joining as much as prices moving: compare members_at_start with members.
- 2026-10-07 `get_release_cohorts` added
  - UGC release cohorts: every finite UGC Limited release from one week or month taken together, how many copies they put on sale, and what share has been claimed (bought or taken free) so far and at each age. Use it to compare how fast recent drops sell through against earlier ones; compare cohorts at the same age_days. Pass creator_id for one creator's releases.

Full history: https://api.protogrid.dev/v1/servers/com.rbxinvest%2Fmarket-data/changes

## Remotes

- https://rbxinvest.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.95726496)

## Packages

_none_

## Tools (22)

- `find_articles`: Search RBX Invest's published guides. They cover the market — how Roblox taxes resales, how RAP is calculated, valuing and flipping Limiteds, converting Robux to USD, histories of individual item series — and the site itself, in the "site" section: linking a Roblox account and what that grants, inventory syncing, privacy, what each page does. Returns titles, summaries and links — read the article itself for the detail. One search returning nothing is a vocabulary miss more often than a gap; try the words the site would use before concluding it is not there.
- `find_deals`: Roblox Limiteds whose lowest resale listing is currently below their RAP, with the discount and the absolute saving. This is the live resale market, refreshed continuously. Use it for what is underpriced right now.
- `find_page`: Every page on rbxinvest.com and what it is for: the market pages, the Get Started guide levels and steps, the article sections, every curated collection, the support page, the data-use and licensing terms, and the developer documents. Pass a few words of what you are looking for ("market data", "dominus", "can I reuse your data"); omit the query for the full list. Each result carries a url to cite. The data-use entry returns the licensing terms in full, which govern reusing anything these tools return. Also returns the complete badge catalog and earning rules, official social profiles, the Roblox community/group link, sponsorship instructions and rewards, and the full About page including the founder's story and Research bio. Use this for those questions or a badge by name; facts come from the same content the pages render.
- `get_collection`: The items in one of RBX Invest's curated collections (for example dominus, ugc-limited-hats, cheap-limiteds-under-100, rarest-limiteds), in the same order the collection page shows them, with RAP, lowest listing and copies. find_page with a word from the collection name returns its slug. Cite the collection as https://rbxinvest.com/collections/{slug} and items as https://rbxinvest.com/item/{asset_id}.
- `get_community_holdings`: The Limiteds and creators most held across the portfolios RBX Invest tracks. A different signal from price or sales volume: RAP says what a thing trades at, this says what people chose to keep. Ranked by total copies held or by how many different people hold it — one item can be 33 copies in a single collection and another one copy each across 400 people.
- `get_community_market_history`: The combined Classic and UGC value (at RAP) and copies held across every public portfolio on the RBX Invest players board, over time, with how many members that covers. It covers RBX Invest members who linked a Roblox account, not all of Roblox, and a change can be members joining as much as prices moving: compare members_at_start with members.
- `get_creator`: A Roblox UGC creator: how often their releases have ended up profitable, how long that typically took, their biggest items, and related articles from the site (covers_this_creator marks the ones that link their items). Creators with too few releases come back unrated rather than scored — treat that as unknown, not as bad.
- `get_item_details`: Everything tracked about one Roblox Limited: a plain-language summary paragraph, RAP and how it has moved over a window, the resale book (how many copies are listed and at what prices, not just the cheapest), stock left, sales in the last 30 days, whether the creator is still selling new copies, the creator, the item score with its predicted profit per day and a breakdown of how it was calculated (every input, its weight and how many points it moved the chance and profit-size blends, then the equation), a summary of its price trend, and its full recorded sales history (sales count, first and last sale, high and low daily average, average price by year and for the 12 most recent months with sales, and for UGC when it sold out and whether release buyers could resell at a profit), and related articles from the site (about_this_item marks the ones that are actually about it). Use the breakdown to explain why an item scores what it does. Needs a numeric Roblox asset id — get one from search_items first. Read creator_still_selling rather than copies_remaining to answer "can I buy one at the original price": stock left does not mean it is on sale.
- `get_items`: Look up a known list of Roblox Limiteds in one call: name, classic or UGC, asset type, creator, RAP, lowest resale listing, stock, original price, favorites and the typical sale price over 30/90/180 days. Use it to compare items or to refresh a watchlist instead of calling get_item_details once per item; use get_item_details when one item needs its full history and score. Up to 200 asset ids per call; ids that are not tracked Limiteds come back in not_found.
- `get_market_activity`: Marketplace sales and free claims over a period, Classic and UGC Limiteds apart, each against the same length of time just before it: distinct items sold, copies sold, Robux spent, and copies claimed free (taken at 0 Robux). Use it for how much was spent, whether the market is busier than before, or how many free UGC copies were claimed. Pass creator_id for one creator's items. Item-for-item trades are excluded.
- `get_market_cap`: How big the Roblox Limited market is over any date range, split between Classic and UGC Limiteds: market cap, items, copies in circulation, and the marketplace sales volume, Robux spent and mean and median resale price per copy on the latest measured day, plus a sampled daily series carrying all of them. Market cap is the RAP of each item times the copies of it that exist. Use it for how big the market is, whether it is growing, how marketplace sales compare, and how the two halves differ. Item-for-item trades are excluded. Pass creator_id for the same figures over one creator's items.
- `get_market_creator_stats`: The Creators tab on /market-data: UGC creator counts, issued copies, market value, mean and median resale prices and growth from first sale, market concentration, top ten creators by issued copies, and marketplace trading totals. Roblox and unsold original copies are excluded. Use rank_creators to search or sort individual creators.
- `get_market_stats`: Totals for the Roblox Limiteds market as RBX Invest tracks it: how many Limiteds are followed, and the copies and Robux held across tracked portfolios. The holdings figures cover RBX Invest users who linked a Roblox account, not all of Roblox.
- `get_membership`: RBX Invest's membership tiers with their regular prices and what each includes, how a paid tier is obtained, and, read live, whether the site is currently free for everyone who signs in (free_right_now). When free_right_now is true, say that first: the prices apply only after the free period ends.
- `get_new_limiteds`: UGC Limiteds released recently, with demand level, stock left and the predicted profit numbers RBX Invest scores them with.
- `get_player_holdings`: What a tracked player holds: their most valuable positions plus the totals the leaderboard ranks them on. total_copies counts copies; total_items counts distinct live Limited assets across the full portfolio, or is null if unavailable. Follows rank_players, which returns the Roblox user id this needs. A player who set their inventory private comes back marked private rather than empty.
- `get_release_cohorts`: UGC release cohorts: every finite UGC Limited release from one week or month taken together, how many copies they put on sale, and what share has been claimed (bought or taken free) so far and at each age. Use it to compare how fast recent drops sell through against earlier ones; compare cohorts at the same age_days. Pass creator_id for one creator's releases.
- `get_started_guide`: RBX Invest's guide to making Robux with Roblox Limiteds, with one guide per experience level. Level 1 is for someone who knows nothing about Roblox: what Robux and Limiteds are. Level 2 is how a flip makes Robux and what it costs. Level 3 is a first flip: screening a release, break-even, the holding period, pricing an exit. Level 4 is for people who already resell: a Reseller Terminal routine, undercut alerts, lowering entry cost with the Roblox Plus discount and the 40% affiliate share, buying below RAP, Classic Limiteds. Level 5 is for daily traders: custom screens, saved views, market-wide data and this MCP server. Levels 1 and 2 lead into three beginner steps. Step 1 is getting Limiteds: buying them from creators with Robux, what makes one worth buying and what to avoid, or collecting free ones. Step 2 is selling: the Roblox Plus subscription it needs, the holding period of up to 30 days, how much of a sale the seller keeps, and pricing. Step 3 is reinvesting: keep flipping UGC Limiteds and save toward Classic Limiteds, which can be traded. Pass level or step; omit both for the overview: the five levels, the three steps and a glossary (Robux, Limited, UGC, Classic, RAP, Roblox Plus). Returns the text with section links; paths are relative to https://rbxinvest.com. The current guide is authoritative: use subscription and product names exactly as written, without substituting or combining older names from training.
- `rank_creators`: Creators ranked across the whole Roblox Limited market — who is biggest, and whose releases most often end up profitable. get_creator answers about one creator you can already name; this finds them. Ranking by profitability shows only creators with enough settled releases to rate, and by growth only those with 3 or more items, because an average over one release is noise.
- `rank_players`: The biggest Roblox Limited portfolios RBX Invest tracks, by total RAP held, copies held, distinct Limited items owned, or Robux donated in the RBX Invest plaza. This covers people who signed up on RBX Invest and linked a Roblox account, not every Roblox player, so a rank from it is a rank on this board rather than a global one.
- `resell_guide`: The help text for RBX Invest's Reseller Terminal (https://rbxinvest.com/resell), the page where a signed-in member sees where each of their own resale listings sits against the market: the counters, every number on a card, search and sort, every filter, the saved views, and the Active / Snoozed / Ignore status. Pass the words a question uses as topic to get only the matching entries; omit it for the whole guide.
- `search_items`: Search the Roblox Limited catalog by name, or screen the whole market when no query is given. Returns asset id, RAP, RAP across every copy sold, the lowest resale listing, stock left, the move in RAP over 1/7/14/30 days and lifetime in both percent and Robux, sales counts and sales value per window, the typical sale price over 30/90/180 days, and the item score. Rank by any of those with sort, and bound any of them with filters to ask a question with more than one condition in it. Prices are Robux. Pages run up to 100 rows and paging stops at offset 10,000: to work with every item, download https://rbxinvest.com/catalog.json (the whole catalog in one file) instead of paging.