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Directory / afterns

afterns

Q: Is afterns MCP server safe?

QAmcp's test on 2 Nov 2026: None of the hidden-instruction wordings we know were found in its tool descriptions. Its error messages showed no secrets or internal details. All 4 of its tools are labeled read-only. Overall it scored 89/100 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.

by afterns.com · https://afterns.com/api/mcp

US stock earnings: next-day price reactions, beat/miss history, calendar, call summaries (KO/EN)

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

Visit website

89 /100

PASS · WITH NOTES

12 of 12 checks · 2 Nov 2026

Is afterns 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.
All 4 of its tools are labeled read-only.
Overall it scored 89/100 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

4 tools, in the server's own words.

search_stocksread-only

Find US-listed stocks by ticker or company name, including Korean names and nicknames (e.g.

get_earnings_reactionsread-only

Show how a US stock moved the day after each of its recent earnings reports (up to the 12 most recent), whether EPS beat or missed estimates, and its next earn…

get_earnings_calendarread-only

List upcoming US earnings reports for a date range (up to 14 days, US Eastern dates), largest and most-watched companies first.

get_earnings_call_summaryread-only

Summarize what management said on a US company's latest earnings call or release: one-line takeaway, positives, concerns, and up to three quotes (Korean transl…

Test results

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

!
Every tool is described
3 warnings
- !search_stocks: Inputs with no description: query
- !get_earnings_reactions: Inputs with no description: limit
- !get_earnings_calendar: Inputs with no description: group
note
!
Resources and prompts work
1 warning (2 resources)
- !2 of 2 resources have no description, so people can't tell what they contain.
- and 2 more
note
✓
ConnectsConnected in 328 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 4 tools
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
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 inputs
All good
- ✓search_stocks: Worked (163 ms)
- ✓get_earnings_reactions: Answered with an error, probably because of our sample input: "test"만으로는 종목을 하나로 정할 수 없습니다. 사용자에게 어느 종목인지 확인하세요. 후보: 스테이트 스트리트(STT)
- ✓get_earnings_calendar: Worked (127 ms)
- ✓get_earnings_call_summary: Answered with an error, probably because of our sample input: "test"만으로는 종목을 하나로 정할 수 없습니다. 사용자에게 어느 종목인지 확인하세요. 후보: 스테이트 스트리트(STT)
pass
✓
Bad inputs give a clean error
All good
- ✓search_stocks: Refused missing required input "query" with a clear error
- ✓search_stocks: Refused wrong type for "query" with a clear error
- ✓get_earnings_reactions: Refused missing required input "stock" with a clear error
- ✓get_earnings_reactions: Refused wrong type for "stock" with a clear error
- ✓get_earnings_calendar: Refused wrong type for "from" with a clear error
- ✓get_earnings_call_summary: Refused missing required input "stock" with a clear error
- ✓get_earnings_call_summary: Refused wrong type for "stock" with a clear error
pass
✓
Fast enough
All good
- ✓Connecting took 328 ms
- ✓Listing tools took 209 ms
- ✓Average tool answer: 160 ms
- ✓get_earnings_call_summary: Slowest tool: get_earnings_call_summary (229 ms)
pass
✓
No secrets leakedChecked 9 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
–
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://afterns.com/api/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-afterns-earnings.svg)](https://qamcp.dev/s/com-afterns-earnings.html)

Score over time

2 Nov 202689

One test so far. New tests will show here.

Reviews

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

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