QAmcp

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Directory / Hagglyai

Hagglyai

Q: Is Hagglyai MCP server safe?

QAmcp's test on 30 Oct 2026: No hidden instructions were found in its tool descriptions. Its error messages showed no secrets or internal details. All 5 of its tools are labeled read-only. Overall it scored 93/100 on 30 Oct 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.

by hagglyai.com · https://hagglyai.com/mcp

Find the best pay-per-call API for any task: price, uptime and real usage across 19,000+ APIs.

5 tools✓ all read-only✓ no account neededPricing: not listed

Visit website

93 /100

PASS · WITH NOTES

12 of 12 checks · 30 Oct 2026

Is Hagglyai MCP server safe?

No hidden instructions were found in its tool descriptions.
Its error messages showed no secrets or internal details.
All 5 of its tools are labeled read-only.
Overall it scored 93/100 on 30 Oct 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 it can do

5 tools, in the server's own words.

find_bestread-only

Call this when a task needs an outside API or data source and you have not picked one, e.g.

compare_categoryread-only

Call this to weigh the options in one area instead of taking find_best's single recommendation, or when the user asks "which is the cheapest / most reliable X …

most_popularread-only

Call this when the user asks what other people use, or wants a safe, proven choice: the 3 APIs in a category with the most paying users in the last 30 days, "M…

check_endpointread-only

Call this before paying a specific API URL you were given or found elsewhere, to see whether it can be trusted: Hagglyai's reliability score and recent check h…

list_categoriesread-only

Call this to see whether Hagglyai can help with a need, or to get ids for compare_category and most_popular: every category with how many APIs it tracks, the c…

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Every tool is described
2 warnings
- !compare_category: Inputs with no description: max_price_usd, limit
- !most_popular: Inputs with no description: max_price_usd
note
✓
ConnectsConnected in 166 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 5 tools
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No hidden instructionsNo hidden instructions found in tool descriptions
pass
✓
Tools work with good inputs
All good
- ✓find_best: Worked (1.7 s)
- ✓compare_category: Answered with an error, probably because of our sample input: Unknown category "test". Call list_categories for valid ids.
- ✓most_popular: Answered with an error, probably because of our sample input: Unknown category "test". Call list_categories for valid ids.
- ✓check_endpoint: Worked (194 ms)
- ✓list_categories: Worked (1.4 s)
pass
✓
Bad inputs give a clean error
All good
- ✓find_best: Refused missing required input "task" with a clear error
- ✓find_best: Refused wrong type for "task" with a clear error
- ✓compare_category: Refused missing required input "category" with a clear error
- ✓compare_category: Refused wrong type for "category" with a clear error
- ✓most_popular: Refused missing required input "category" with a clear error
- ✓most_popular: Refused wrong type for "category" with a clear error
- ✓check_endpoint: Refused missing required input "url" with a clear error
- ✓check_endpoint: Refused wrong type for "url" with a clear error
pass
✓
Tools work togetherlist_categories → check_endpoint: check_endpoint found what list_categories returned (url = "https://hagglyai.com/compare/{id}.md")
pass
✓
Fast enough
All good
- ✓Connecting took 166 ms
- ✓Listing tools took 342 ms
- ✓Average tool answer: 674 ms
- ✓find_best: Slowest tool: find_best (1.7 s)
pass
✓
No secrets leakedChecked 11 error messages: no secrets or internal details
pass
✓
Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
pass

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://hagglyai.com/mcp

Show 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.

[![QAmcp score](https://qamcp.dev/s/com-hagglyai-haggly.svg)](https://qamcp.dev/s/com-hagglyai-haggly.html)

Score over time

30 Oct 202693

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Hagglyai, signed in with GitHub, one per person. Reviews never change the score.

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