# Signalbound Offer Radar

> Signalbound Offer Radar is a paid API for AI agents from api.signalbound.art, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Scans OpenSea collections for offers and returns gated deal intelligence, accessible only to holders of a specific Signalbound NFT token.

## Facts

- Endpoint: POST https://api.signalbound.art/offer-radar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalbound-offer-radar-7f0b51df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dzdu4weYv697gEu0Kc_el

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 signalbound-offer-radar-7f0b51df -d '<json body>'
```

Example prompt: Scan the OpenSea collections 'boredapeyachtclub' and 'azuki' for current offers using my Signalbound token ID 42 and give me a summary of what's out there.

## When to prefer this

Use this endpoint when you need offer intelligence across multiple OpenSea NFT collections and the user holds a Signalbound NFT token that grants clearance-gated access. It is specifically suited for Web3 agents operating on behalf of NFT holders who want curated, token-authenticated market signals rather than raw public OpenSea data.

## Known failure modes

- Token ID not owned by caller — returns authorization error or empty clearance
- Invalid or non-existent OpenSea collection slug — collection returns empty or error entry
- Token ID does not meet required clearance level — access denied response
- OpenSea API unavailability — upstream data fetch failure
- Malformed input (missing required slugs array or tokenId) — 400 validation error

## How this service works

Signalbound API for agent metadata, reveal-aware token reads, ERC-8004 registration files, and holder-gated tool routes.

## Output

Returns a JSON object with the total count of offers found, an array of per-collection offer details, a brief human-readable summary of offer activity, the caller's wallet address, and their clearance level derived from the Signalbound token.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "slugs",
  "tokenId"
 ],
 "properties": {
  "slugs": {
   "type": "array",
   "description": "OpenSea collection slugs to scan."
  },
  "tokenId": {
   "type": "integer",
   "description": "Signalbound token ID used for ERC-7496 clearance-gated access. The authenticated caller must own it."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "count",
  "collections",
  "brief"
 ],
 "properties": {
  "brief": {
   "type": "string"
  },
  "count": {
   "type": "integer"
  },
  "caller": {
   "type": "string"
  },
  "clearance": {
   "type": "string"
  },
  "collections": {
   "type": "array"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalbound-offer-radar-7f0b51df/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.signalbound.art](https://www.zero.xyz/host/api.signalbound.art/llms.txt)