#42 in Finance & AccountingUpdated 2026-08

InterPrime

by InterPrime · Automated treasury management for company cash

6.3 — BenchRank score out of 100

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Overview

InterPrime is an SEC-registered investment advisor that manages a company's idle cash. You pick an investment policy, connect a bank account, and it invests in US government bonds and cash-equivalent securities held directly in your name at Interactive Brokers or Charles Schwab. A bank sweep sends money back when your balance drops below a set minimum.

Best for: US businesses and startups with idle cash that want it invested in short-term government securities
Pricing: No prices are shown on the captured pages; the site only offers a contact form.
Runs on: Web

Strengths and trade-offs

Strengths

Assets held individually in your name, not pooled in funds
Custodied at Interactive Brokers and Charles Schwab
Withdrawals in 1 business day with no penalties or fees
SEC-registered advisor, not tied to a bank or fund

Trade-offs

No pricing published anywhere on the site
Now joined with Rho and relaunched as Rho Prime Treasury
Money takes one business day to reach you, not same day
Insurance covers broker failure, not loss of market value

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
API quality: 0 out of 100
Documentation: 0 out of 100
Agent friendliness: 38 out of 100
Changelog: 0 out of 100
Marketing site structure: 10 out of 100
Operational trust: 0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 0 out of 100

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