Penny Rounding

Name: Penny Rounding
Author: gumballtools

@gumballtoolsMCP server · External

Round cash totals to the nearest nickel correctly — after tax, on the total, cash only.

v0.1.0

Freeno charge per call

One address for any MCP client. No sign-in needed on this server.

Safety · AI3%Low risk
Does · AIReadsOnly looks things up
ConnectRemote · no sign-inStreamable HTTP
PopularityNo stars yetUpdated 5 Sep 2026
StatusAll clearAnswered Odel on 12 Oct

What it does

3 other

Grouped by tool name. At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Tools

3 · grouped by tool name · checked 12 Oct 2026

Other · 3Neither hinted nor named

round_cash_total
rounding_impact
price_band

Try it in the Inspector

No README yet. What Odel knows about this module is on the right.

Similar modules

MCP server: One MCP server.
Amortization ScheduleRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Row-by-row loan amortization schedules: monthly or daily accrual, extra principal, PMI, biweekly.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Body MetricsRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Convert height and weight, compute BMI, TDEE and protein targets with error bounds.
4% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Check Digit ValidatorRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Color CompanionRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Convert colours between hex, RGB, HSL, OKLCH and CMYK, and compute harmonies.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Due DateRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Estimate a due date from LMP, conception, or ultrasound, with ACOG redating rules.
4% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Equation StepsRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Step-by-step solver for linear/quadratic equations in one variable, signs and ± always right.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
ISO Week NumberRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
ISO 8601 week numbers: date to week, week to date, weeks-per-year.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
2% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
JSON to TypesRun by its publisher: served from their own domain, namespace checked by the registry.
@gumballtools · External
Convert JSON samples into TypeScript interfaces and Zod schemas, with inference caveats.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.