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Directory / Halves
Halves
by halves.clawhard.com · https://halves.clawhard.com/mcp
Split shared costs fairly: who owes whom, in the fewest payments. No account.
12 of 12 checks · 2 Nov 2026
Is Halves MCP server safe?
- None of the hidden-instruction wordings we know were found in its tool descriptions.
- Its error messages showed no secrets or internal details.
- 1 of its 2 tools are labeled read-only; the others may change or send things.
- Overall it scored 95/100 on 2 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 it can do
2 tools, in the server's own words.
halves_settle_upread-onlyUse when the user shares a trip, dinner, household or group expense list and asks who owes whom, how to split costs, or how to settle up.
halves_create_group_linkUse when the user wants a shared place for a group (trip, flat, event) to keep adding expenses and see who owes whom, not just a one-time calculation.
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.
- ✓ConnectsConnected in 228 mspass
- ✓Lists its toolsFound 2 toolspass
- ✓Every tool is describedAll 2 tools and their inputs are describedpass
- ✓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
- ✓halves_settle_up: Answered with an error, probably because of our sample input: "people" needs 2 to 40 names.
- –halves_create_group_link: Not run: labeled as changing data
- ✓Bad inputs give a clean errorpass
All good
- ✓halves_settle_up: Refused missing required input "people" with a clear error
- ✓halves_settle_up: Refused wrong type for "people" with a clear error
- ✓Fast enoughpass
All good
- ✓Connecting took 228 ms
- ✓Listing tools took 41 ms
- ✓Average tool answer: 21 ms
- ✓halves_settle_up: Slowest tool: halves_settle_up (21 ms)
- ✓No secrets leakedChecked 3 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
- ✓Resources and prompts workpass
All good (2 resources, 1 prompt)
- ✓Opened 2 of 2 resources
- ✓An address that does not exist gets a clean "not found" error
- ✓Opened 1 of 1 prompts
- –Tools work togetherNo safe tool returned data to start a chain from, so chains were not tested (not counted either way)not tested
Test it yourself
Free and open source. Same checks, same score.
npx qamcp-cli https://halves.clawhard.com/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/com-clawhard-halves.html)Score over time
- 2 Nov 202695
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use Halves, 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