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Directory / DataSnack
DataSnack
by datasnack.ai · https://datasnack.ai/mcp
Prediction-market forecasts with a public record; OAuth sign-in adds follows and Excel exports.
11 of 11 checks · 10 Nov 2026
At a glance
- Runs where
- On their server. What you send to it goes to them.
- What you need
- Nothing: it answered without a login
- Tools
- 18 tools
- Its own safety labels
- 13 read-only, 5 labeled as changing things
- Memory it takes
- About 2,100 tokens of your AI's memory, just for its tool descriptions
- Largest answer
- About 2.7 KB in our test
- Speed
- Average answer in our test: 80 ms
Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 10 Nov 2026.
Is DataSnack MCP server safe?
- None of the hidden-instruction wordings we know were found in its 18 tool descriptions.
- Its error messages showed no secrets or internal details.
- 13 of its 18 tools are labeled read-only; the others may change or send things.
- Overall it scored 88/100 on 10 Nov 2026.
A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.
What this test does not check
- Its source code and packages.
- What a tool quietly does behind the scenes, such as writing a file or calling another service.
- Instructions hidden inside live tool answers. We only look for those in tool descriptions.
- Hidden instructions worded in a way our list doesn't know yet.
- Tools that could change something. Those are read, never run.
What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection
Known security advisories
It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.
What it can do
18 tools, in the server's own words.
search_modelsread-onlySearch DataSnack's public forecasting models of prediction-market questions.
get_modelread-onlyRead one DataSnack model: the question, the market's number now, the model's forecast for seven days from now, how the model works, its sources and its graded …
overnightread-onlyWhat DataSnack's agents did last night: rounds run, model changes kept and rejected, the biggest miss, where DataSnack and the market differ most, and the scor…
scoreboardread-onlyHow DataSnack's models and agents did over the last 30 days: how far off the seven-day forecasts landed, how often they beat standing still, and how often the …
calibrationread-onlyHow often prediction markets came true at each price, by days before they closed, from the markets DataSnack follows that have resolved.
get_reference_workbookread-onlyA free DataSnack Excel workbook with working formulas: the tariffs → mortgage rates lab, a chain of five models fitted on public FRED data (import prices, prod…
get_meread-onlyThe signed-in reader's DataSnack account: handle, plan, and coverage used this month.
list_libraryread-onlyThe models the signed-in reader follows and the markets they cover.
follow_modelFollow a model (or market) so its changes show in the reader's DataSnack Library and notices.
unfollow_modelStop following a model (or market).
list_noticesread-onlyThe signed-in reader's DataSnack notices from the last 48 hours: changes to followed and covered models.
cover_statusread-onlyWhether the signed-in reader can cover a market now (so DataSnack builds or keeps working its model every night) and, if not, why; with the reader's allowance …
cover_marketCover a market for the signed-in reader: DataSnack builds a model for it (or keeps working the one it has) every night, and the reader can export it to Excel.
export_optionsread-onlyWhether the signed-in reader can export a model to Excel now and, if not, why (they need to cover its market).
export_modelCreate an Excel workbook of a DataSnack model the signed-in reader covers, with the model's equations as working formulas, its inputs and its record, and retur…
get_exportread-onlyThe status of an Excel export and, when it is ready, its download link.
list_exportsread-onlyThe signed-in reader's recent Excel exports.
start_checkoutA Stripe checkout link for the signed-in reader to open in their browser and pay: DataSnack Plus monthly or yearly, or one market coverage.
Test results
Safe mode: only tools labeled read-only were run. How the test works
- !Ready for the newest MCP versionnote
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
- !Every tool is describednote
3 warnings
- !search_models: Inputs with no description: limit
- !get_export: Inputs with no description: export_id
- !start_checkout: Inputs with no description: product
- ✓ConnectsConnected in 529 mspass
- ✓Lists its toolsFound 18 toolspass
- ✓Tools are labeled safe or dangerousEvery tool has a safety labelpass
- ✓No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.pass
- ✓Tools work with good inputspass
All good
- ✓search_models: Worked (85 ms)
- ✓get_model: Answered with an error, probably because of our sample input: DataSnack has no public page for that.
- ✓overnight: Worked (134 ms)
- ✓scoreboard: Worked (81 ms)
- ✓calibration: Worked (61 ms)
- ✓get_reference_workbook: Worked (56 ms)
- –get_me: Needs you to sign in, so it was not tested (not counted against the server)
- –list_library: Needs you to sign in, so it was not tested (not counted against the server)
- and 10 more
- ✓Bad inputs give a clean errorpass
All good
- ✓search_models: Refused missing required input "query" with a clear error
- ✓search_models: Refused wrong type for "query" with a clear error
- ✓get_model: Refused missing required input "id" with a clear error
- ✓get_model: Refused wrong type for "id" with a clear error
- –cover_status: Needs you to sign in, so bad inputs were not tested
- –export_options: Needs you to sign in, so bad inputs were not tested
- –get_export: Needs you to sign in, so bad inputs were not tested
- ✓Fast enoughpass
All good
- ✓Connecting took 529 ms
- ✓Listing tools took 55 ms
- ✓Average tool answer: 80 ms
- ✓overnight: Slowest tool: overnight (134 ms)
- ✓No secrets leakedChecked 18 error messages: no secrets or internal detailspass
- ✓Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guidepass
- –Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)not tested
Test it yourself
Free and open source. Same checks, same score.
npx qamcp-cli https://datasnack.ai/mcpShow this score on GitHub
Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.
[](https://qamcp.dev/s/ai-datasnack-datasnack.html)Score over time
- 10 Nov 202688
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use DataSnack, signed in with GitHub, one per person. Reviews never change the score.
QAmcp Monitor tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. Free for 1 server, no card.
Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works