List available endpoints at an API origin. Returns endpoint URLs with descriptions of what each does and the auth mode for each (paid or SIWX). Works with any origin, not just the registered ones. Call this when you need to see what routes are available at an origin — whether it's one of the regi...
Risk signalsAccepts URL/endpoint input (url)
Part of the Agentcash server.
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AI agents use discover_api_endpoints to create or modify resources in Agentcash. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call discover_api_endpoints repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Agentcash.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"discover_api_endpoints": {
"limits": [
{
"counter": "discover_api_endpoints_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Agentcash policy for all 11 tools.
These attack patterns abuse exactly the kind of access discover_api_endpoints gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
List available endpoints at an API origin. Returns endpoint URLs with descriptions of what each does and the auth mode for each (paid or SIWX). Works with any origin, not just the registered ones. Call this when you need to see what routes are available at an origin — whether it's one of the registered origins or any other origin you've identified as useful. Treat the auth mode as guidance for what the route may require; fetch handles both SIWX and payment. The response always indicates whether guidance is available. Guidance is documentation published by the API provider explaining how endpoints work together, edge cases, and usage tips. compact guidance is included automatically; set include_guidance=true to force-include full usage documentation when you need to compose two or more endpoints or need clarification on how the origin works.. It is categorised as a Write tool in the Agentcash MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Agentcash MCP server in PolicyLayer and add a rule for discover_api_endpoints: 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 Agentcash. Nothing to install.
discover_api_endpoints is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the discover_api_endpoints 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 discover_api_endpoints. 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.
discover_api_endpoints is provided by the Agentcash MCP server (agentcash). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Agentcash tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.