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Obol Stack Bounty Radar Chat Completions
x402
Obol Stack Bounty Radar Chat Completions is a paid API for AI agents from 4-obol-agent.dvlabs.dev, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Payment-gated LLM chat completions endpoint (OpenAI-compatible) served by the Obol Stack bounty-radar operator, requiring an x402 micropayment header per request
Price / call$0.001
Success—
StatusDown
How this service works
x402 payment-gated services advertised by this Obol Stack operator. Every operation expects an `X-PAYMENT` header carrying a signed x402 v2 payment payload; unpaid requests receive a 402 with `accepts[]` describing the prices the operator will honour. See https://www.x402.org for the wire protocol and https://github.com/ObolNetwork/obol-stack for the source. Note: schemas for individual operations are derived heuristically from the underlying ServiceOffer's `type` field. Buyers using generated clients should treat request and response shapes as advisory until operators tighten them with explicit OpenAPI fragments.
Output
Returns an OpenAI-compatible chat.completion JSON object containing the assistant's reply message, the model used, a unique completion ID, the finish reason (e.g. 'stop'), and the choice index. Streaming mode is also supported if requested.
Example use cases
Agent-to-agent LLM reasoning task
“Send this system prompt and user question to the bounty-radar AI — system: 'You are a security analyst', user: 'What are the top 5 indicators of a phishing attack?' — use claude-sonnet-4-6, max 500 tokens.”
Automated code review commentary
“Have the bounty-radar AI review this code snippet for vulnerabilities and suggest fixes — use claude-sonnet-4-6, temperature 0.3, and limit the response to 400 tokens.”
Micropayment-gated Q&A for smart contract help
“Ask the bounty-radar AI to explain how reentrancy attacks work in Solidity and how to prevent them — claude-sonnet-4-6, 600 tokens max, temperature 0.5.”
Technical details
Endpoint
POSThttps://4-obol-agent.dvlabs.dev/services/bounty-radar/v1/chat/completionsWhen to prefer
Choose this endpoint when you need a pay-per-call, OpenAI-compatible chat completions interface backed by the x402 micropayment protocol — ideal for agent workflows that need metered LLM access without subscriptions, or when integrating with the Obol Stack decentralized operator ecosystem. Prefer this over hosted OpenAI/Anthropic APIs when you want crypto-native (USDC) per-request billing or when operating within an x402-aware agent framework.
Side effects
- 402 Payment Required — missing or invalid X-PAYMENT header; response includes accepts[] with pricing details
- Invalid model identifier — model not listed in the operator's /api/services.json or 402 accepts[].extra
- Malformed messages array — missing required 'role' or 'content' fields
- Temperature out of range (must be 0–2) or max_tokens less than 1
- Operator node offline or unreachable — connection timeout or 5xx error
- Payment amount insufficient — operator rejects underpaid x402 payload
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | Model identifier advertised in the 402 accepts[].extra or /api/services.json. |
| stream | boolean | |
| messages | array | |
| max_tokens | integer | |
| temperature | number |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-example",
"model": "claude-sonnet-4-6",
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hello! How can I help you today?"
},
"finish_reason": "stop"
}
]
}
}Tags
x402
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