Request authorization for a payment to another agent or service. Agentra is NON-CUSTODIAL: this returns an authorization attestation and an unsigned transaction. Agentra never touches your private keys or moves your funds. YOU sign and submit the transaction yourself. Flow: (1) Call this endpoint...
Part of the Agentra server.
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AI agents call agentra_authorize_payment to retrieve information from Agentra 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 agentra_authorize_payment 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": {
"agentra_authorize_payment": {}
}
}See the full Agentra policy for all 6 tools.
These attack patterns abuse exactly the kind of access agentra_authorize_payment 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.
Request authorization for a payment to another agent or service. Agentra is NON-CUSTODIAL: this returns an authorization attestation and an unsigned transaction. Agentra never touches your private keys or moves your funds. YOU sign and submit the transaction yourself. Flow: (1) Call this endpoint -> (2) Receive unsigned tx + attestation -> (3) Sign with your Turnkey wallet -> (4) Submit to Base network -> (5) Call settle to record completion. If counterparty is unverified and require_counterparty_kya is true (default), you get a 402 challenge with instructions for the counterparty to onboard. This is Agentra's viral growth mechanism.. It is categorised as a Read tool in the Agentra MCP Server, which means it retrieves data without modifying state.
Register the Agentra MCP server in PolicyLayer and add a rule for agentra_authorize_payment: 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 Agentra. Nothing to install.
agentra_authorize_payment 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 agentra_authorize_payment 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 agentra_authorize_payment. 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.
agentra_authorize_payment is provided by the Agentra MCP server (https://api.agentrapay.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 Agentra tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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