Get OathScore quality rating for a specific API. Available APIs: alphavantage, polygon, finnhub, twelvedata, eodhd, fmp, fred, coingecko, alpaca, yfinance. Returns composite score (0-100), letter grade, and component breakdown.
AI agents call get_score to retrieve information from OathScore without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries a ratings database and returns data without side effects. The AI agent cannot use it to modify state, execute commands, delete data, or transfer money. The worst misuse would be relying on stale or incorrect ratings when selecting data sources, which is a low-blast-radius informational failure rather than a system compromise or financial loss.
From the tool's definition Tool retrieves and returns a 'quality rating' and 'composite score' with 'component breakdown' for specified APIs.
Attacks that exploit this kind of access
Get OathScore quality rating for a specific API. Available APIs: alphavantage, polygon, finnhub, twelvedata, eodhd, fmp, fred, coingecko, alpaca, yfinance. Returns composite score (0-100), letter grade, and component breakdown. It is categorised as a Read tool in the OathScore MCP Server, which means it retrieves data without modifying state.
Register the OathScore MCP server in PolicyLayer and add a rule for get_score: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches OathScore. Nothing to install.
get_score is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_score rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_score. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_score is provided by the OathScore MCP server (moxiespirit/oathscore). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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