MCP server official
Risk level
low
20/100

Mercury MCP Server ↗

Mercury MCP Server is an officially published MCP server from Mercury. Anomity scores its risk at 20 out of 100 (low).

network:outbound credentials:access

Analysis summary

Mercury MCP Server is an officially published MCP server from Mercury. Anomity scores its risk at 20 out of 100 (low).

Mercury's official MCP server exposes bank accounts, transactions, and cards to agents, so a founder or finance operator can ask questions about spend and cash position in natural language.

Declared capabilities are outbound network access and credential access, and the content is banking data — among the most sensitive an agent can be handed. Read-only scoping is the single most important control, and it is worth verifying rather than assuming: the difference between an assistant that can describe a transaction and one that can initiate one is the whole risk. Financial data in a model context also has audit implications that most teams have not written a policy for yet.

Why this entry scored 20 out of 100

This profile starts at the catalog's neutral base of 50. Because the entry is officially published, trust adjusts the score by -40. Declared high-risk capabilities add +10 (capped at +30). It matches no dangerous capability combinations. The clamped result is 20, placing it in the low band.

See the full scoring formula →

Findings

  • Published by the vendor Trust offset
    Contribution to score: -40
  • 1 high-risk capability: credentials:access High
    Contribution to score: +10

Capabilities

Every capability the entry declares, with the security implication of each.

  • network:outbound Outbound network
    Can make outbound network requests. Required for hosted model providers and remote APIs; also the path for data exfiltration if combined with read access.
  • credentials:access Credentials access
    Reads provider API keys, OAuth tokens, or other secrets from the host keychain or environment.