theprotocol_authorizePayment
Issue an A2A payment token authorizing the caller to invoke a service agent's endpoint. Token format: apt_<64hex>, shown ONCE. TTL 60-3600s. Settlement happens later via settlePayment. Requires the CALLER's agent JWT.
This record as markdown: /tools/cloud-theprotocol-registry/theprotocol-authorizepayment.md
What theprotocol_authorizePayment does on TheProtocol — Sovereign AI Agent Platform
AI agents use theprotocol_authorizePayment to commit financial operations through TheProtocol — Sovereign AI Agent Platform, usually the final step of a payment, billing, or trading workflow. A call moves real money.
| Parameter | Type | Required | Description |
|---|---|---|---|
amount | string | Yes | Amount in AVT to authorize |
agent_jwt | string | — | Optional inline agent JWT |
contract_id | integer | — | Optional contract ID for contract-bound payments |
ttl_seconds | integer | — | Token validity in seconds (60-3600, default 900) |
target_agent_did | string | Yes | DID of the agent to pay |
Parameters from the server's own tool schema.
Why theprotocol_authorizePayment is rated Critical
This tool initiates a financial authorization flow by issuing a payment token that will later be settled via settlePayment. It directly commits to a financial obligation/transaction chain. Misuse by an AI agent could result in unauthorized payment authorizations, making it Financial category with critical severity given the irreversible downstream settlement implications.
From the tool's definition "Issue an A2A payment token authorizing the caller to invoke a service agent's endpoint" and "Settlement happens later via settlePayment"
Attacks that exploit this kind of access
The rule that runs theprotocol_authorizePayment safely
PolicyLayer is an MCP gateway: it sits between your AI agents and TheProtocol — Sovereign AI Agent Platform, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For theprotocol_authorizePayment, this is the rule to start with:
Any call to theprotocol_authorizePayment is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect TheProtocol — Sovereign AI Agent Platform, apply this rule, and every theprotocol_authorizePayment call is checked against it from then on.
Questions about theprotocol_authorizePayment
Issue an A2A payment token authorizing the caller to invoke a service agent's endpoint. Token format: apt_<64hex>, shown ONCE. TTL 60-3600s. Settlement happens later via settlePayment. Requires the CALLER's agent JWT. It is categorised as a Financial tool in the TheProtocol — Sovereign AI Agent Platform MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
theprotocol_authorizePayment accepts 5 parameters: amount, agent_jwt, contract_id, ttl_seconds, target_agent_did. Required: amount, target_agent_did. The full parameter table on this page comes from the server's own tool schema.
Register the TheProtocol — Sovereign AI Agent Platform MCP server in PolicyLayer and add a rule for theprotocol_authorizePayment: 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 TheProtocol — Sovereign AI Agent Platform. Nothing to install.
theprotocol_authorizePayment is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the theprotocol_authorizePayment 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 theprotocol_authorizePayment. 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.
theprotocol_authorizePayment is provided by the TheProtocol — Sovereign AI Agent Platform MCP server (https://api.theprotocol.cloud/mcp/sse). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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