# Script Master Labs x402 Bounties API

> Script Master Labs x402 Bounties API is a paid API for AI agents from mcp-x402.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Retrieves U.S. federal bounties data via a pay-per-call endpoint settled in USDC on Base using the x402 payment protocol.

## Facts

- Endpoint: POST https://mcp-x402.onrender.com/x402/bounties
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/script-master-labs-x402-bounties-api-c4374763
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VSUcfju1fW0aIiC1K45TO

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability script-master-labs-x402-bounties-api-c4374763 -d '<json body>'
```

Example prompt: Can you pull the current U.S. federal bounties data from Script Master Labs — I want to see what government bounty programs are active right now, and I'm okay with the $0.01 USDC micropayment per call.

## When to prefer this

Choose this endpoint when you need programmatic, pay-per-call access to U.S. federal bounties data and are already operating in a crypto-native environment using the x402 micropayment protocol on Base with USDC. It is well-suited for agents that need to query government bounty information on demand without a subscription, paying only $0.01 per call. Prefer alternatives if you need high-reliability SLA guarantees, rich documented schemas, or non-crypto payment methods.

## Known failure modes

- Payment not settled — x402 payment header missing or USDC balance insufficient, resulting in a 402 Payment Required response
- Invalid POST body — malformed or empty request body may return a 400 error
- Service unavailability — hosted on Render free tier (mcp-x402.onrender.com) which may experience cold-start delays or downtime
- Undocumented schema — response fields may vary or be sparse due to low metadata completeness
- Rate limits or quota exceeded — repeated calls may be throttled

## How this service works

Pay-per-call crypto, RWA, federal, SEC, Section 8/HUD housing, and compliance APIs via x402. Primary: USDC on Base (eip155:8453). Also accepts Global Dollar (USDG) on Robinhood Chain (eip155:4663) via sovereign X-PAYMENT-TX. Hyphen routes only (e.g. /x402/gas-tracker, /x402/pha-lookup, /x402/sec-8k). MARKETPLACE REVIEW: use free /x402/playground/* (no key, no payment). Production /x402/* returns 402 unless paid via x402 or X-Api-Market-Key / X-API-Key from seller dashboard.

## Output

Returns a JSON payload containing U.S. federal bounty records and program listings. The response structure is minimal (schema shows an example object), so the agent should expect government bounty data fields such as bounty names, reward amounts, issuing agency, and program status, though the exact fields are not formally documented.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "target_resource",
      "reward_usdc",
      "max_claims",
      "title"
     ],
     "properties": {
      "title": {
       "type": "string"
      },
      "max_claims": {
       "type": "integer"
      },
      "description": {
       "type": "string"
      },
      "reward_usdc": {
       "type": "number"
      },
      "target_resource": {
       "type": "string"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/script-master-labs-x402-bounties-api-c4374763/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402.onrender.com](https://www.zero.xyz/host/mcp-x402.onrender.com/llms.txt)