Caliper MCP server

• Registry namecom.calipermoney/money-calculatorsverified in the MCP registry

The registry name sits under calipermoney.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-29
• Tools4
• Server calls itselfCaliper
• Server version1.30.0
• Protocol version2025-06-18

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 81 ms.

• Its tools do none of the product's use cases we checked: value a home and vehicles automatically over time; project retirement under bull, base and bear markets.
• Checked on 5 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
• What an agent can do with it0 of 2 use cases
• Answeredmeasuring5 of the 7 daily checks it takes to print a share
• Median first answer85 ms
• Space in an agent's context≈ 504 tokensthe definitions of all its tools (4), which an agent carries on every turn
• Tool definitionsC · 67 of 100
• Typed results0 of 4 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 4 of 4
• Not saying whether it only reads or can destroy: 4 of 4

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• net_worth_percentile

  Where a net worth ranks among US families whose head is the same age group. Args: age: the person's age (18-110). net_worth: total assets minus total debts, in US dollars (can be negative).

• net_worth_by_age

  Median, average and top-percentile net worth for US families by age. Args: age: optional. Give an age for that age group's full breakdown (percentiles, homeowners vs renters); omit it for every age group.

• retirement_savings_needed

  How much someone needs saved to retire at an age and spend a yearly amount. Args: retirement_age: age at retirement (40-80). annual_spending: all-in yearly spending in today's dollars (5,000-1,000,000).

• retirement_income_from_savings

  How much a nest egg can sustainably pay out per year from a retirement age to 95. Args: savings: total retirement savings in US dollars (10,000-50,000,000). retirement_age: age at retirement (40-80).