Bounty Engineer Agent Purchase Firewall

x402

Bounty Engineer Agent Purchase Firewall is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Acts as a spend-control and decision gateway that approves or denies autonomous agent purchases by enforcing daily budget limits, network allowlists, and per-transaction amount caps before payment is executed.

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

Machine-buyable infrastructure for autonomous agents: API cost routing, margin optimization, funding-rate data, webpage extraction, result verification, spend controls, retry planning, state, tender search and GitHub bounty intelligence.

Output

Returns a JSON object with a boolean 'ok' flag, the decision ('allow' or 'deny'), current budget tracking (approved_today_usd and projected_today_usd), the mode identifier 'agent_purchase_firewall', and an array of 'findings' detailing any policy violations or notes that influenced the decision.

Example use cases

Daily budget cap for agent fleet

“My autonomous agents are buying API calls throughout the day — before each purchase fires, check whether it's within a $10 daily budget and block anything that would push us over; the current purchase is $0.05 to seller https://api.example.com on the base network.”

Network allowlist enforcement

“My agent wants to pay 0xDEF...456 on polygon, but I only want it transacting on base and base-sepolia — run this $0.01 purchase through the firewall with allowed_networks set to base and base-sepolia and tell me if it should be allowed.”

Per-transaction max amount guard

“Before my agent spends anything, I want to make sure no single purchase exceeds $0.25 — check this $0.10 payment to seller https://bounty-engineer-x402-prod.onrender.com for intent id abc-987 against that max and return the decision.”

Technical details

Endpoint

POSThttps://bounty-engineer-x402-prod.onrender.com/v1/agent-purchase-firewall?utm_source=zero.xyz

When to prefer

Use this endpoint when an autonomous agent needs a policy enforcement layer before executing any payment — specifically when you need budget tracking across calls within a day, network allowlisting, and per-transaction max caps all evaluated together in a single gating call. Prefer it over ad-hoc client-side budget checks when you need a persistent, server-side record of approved spend and a structured allow/deny signal that the agent can act on directly.

Side effects

Missing required fields (pay_to, network, resource) returns a validation error
amount_usd exceeding max_amount_usd returns a deny decision
Projected daily spend exceeding daily_budget_usd returns a deny decision
Network not in allowed_networks list triggers a deny
Invalid seller_origin URI format causes a parsing error
Service unavailable on Render cold start may cause timeout

Input

Schema · Request body

Field	Type	Description
pay_to	string
network	string
resource	string
buyer_key	string
intent_id	string
amount_usd	number
seller_origin	string
max_amount_usd	number
allowed_networks	array
daily_budget_usd	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "mode": "agent_purchase_firewall",
    "budget": {
      "approved_today_usd": 0,
      "projected_today_usd": 0.05
    },
    "decision": "allow",
    "findings": []
  }
}

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