Parameters1
| Parameter | Type | Default | Example |
|---|---|---|---|
url | string | null | https://example-x402-service.com/endpoint |
Service overview
Crest · trust_oracle — Should an autonomous agent trust this x402 service before paying? Full-stack evaluation: endpoint reachability, x402 protocol compliance, pricing reasonableness, schema quality, governance signals, and Claude-powered deep behavioral assessment. Returns trust score 0-100 with grade (A-F), actionable recommendation (PROCEED/CAUTION/DO NOT TRANSACT), and detailed breakdown of each evaluation dimension.
Level up your agent by giving it access to thousands of services. All payable per-request via x402. No API keys, no accounts.
Paste into your agentic chat and let your agent guide you.
npx awal x402 pay "https://deploy.crestsystems.ai/check" \
--method POST \
--data '{
"url": "{url}"
}'{
"endpoint": "POST /check",
"paid": true,
"query": "example input",
"result": {
"value": "Structured response from the service."
}
}API surface
2 crawlable routes
| Parameter | Type | Default | Example |
|---|---|---|---|
url | string | null | https://example-x402-service.com/endpoint |
| Parameter | Type | Default | Example |
|---|---|---|---|
target | string | null | https://example-service.com |
type | string | null | service |
FAQ
Service
NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)
Service
Professional image generation via fal.ai. Default model: OpenAI GPT Image 2 (typography, realism). Alternative: Google Nano Banana Pro. Pricing mirrors Otto AI's ACP at-cost flat fee of $1.00 per image (no refund in x402 — dynamic pricing coming in v2). Supports image editing via public image URL.
Service
Exa /contents endpoint