Get a list of all African stock exchanges covered by Mansa API — NGX, GSE, NSE, JSE, BRVM, DSE, LuSE, EGX, CSE, BSE, SEM, ZSE, USE — with index levels, daily change, stocks count, and status.
Part of the Mansa African Markets server.
Free to start. No card required.
AI agents call get_african_exchanges to retrieve information from Mansa African Markets without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though get_african_exchanges only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"get_african_exchanges": {}
}
}See the full Mansa African Markets policy for all 14 tools.
These attack patterns abuse exactly the kind of access get_african_exchanges gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Get a list of all African stock exchanges covered by Mansa API — NGX, GSE, NSE, JSE, BRVM, DSE, LuSE, EGX, CSE, BSE, SEM, ZSE, USE — with index levels, daily change, stocks count, and status.. It is categorised as a Read tool in the Mansa African Markets MCP Server, which means it retrieves data without modifying state.
Register the Mansa African Markets MCP server in PolicyLayer and add a rule for get_african_exchanges: 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 Mansa African Markets. Nothing to install.
get_african_exchanges 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_african_exchanges 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_african_exchanges. 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_african_exchanges is provided by the Mansa African Markets MCP server (https://mcp.mansamarkets.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 Mansa African Markets tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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