Strale — Trust and Quality Infrastructure for AI Agents

# Strale > The trust layer of the agent economy. Independently quality-scored API capabilities for AI agents. Strale is a capability marketplace for AI agents. It provides compliance checks, company data, payment validation, regulatory intelligence, and developer tools — all with transparent per-call pricing and quality scores. For live capability and country counts see https://api.strale.io/v1/platform/facts; the dynamic version of this file lives at https://api.strale.io/llms.txt. ## x402 Pay-Per-Use (recommended for agents) All capabilities are available via x402 — the HTTP-native payment protocol. Pay per request with USDC on Base mainnet. No signup, no API key needed. - Catalog: GET https://api.strale.io/x402/catalog - Discovery: GET https://api.strale.io/.well-known/x402.json - Protocol: USDC on Base mainnet (eip155:8453) - Pricing: $0.005 to $0.10 per call depending on capability Example: GET https://api.strale.io/x402/sanctions-check?name=John+Doe → HTTP 402 with paymentRequirements (USDC, $0.02) → Retry with X-Payment header containing signed USDC transfer → HTTP 200 with sanctions screening result ## API Key Access (for developers) - Base URL: https://api.strale.io/v1 - Execution: POST /v1/do - Auth: Bearer token (sign up at strale.dev) - Pricing: EUR wallet, prepaid via Stripe - Trial: €2.00 free credits, no card required ### Request structure POST /v1/do request body: ``` { "capability_slug": "iban-validate", // Required: the capability to call "inputs": { // Required: capability-specific input fields "iban": "DE89370400440532013000" }, "max_price_cents": 100 // Optional: budget cap, in EUR cents } ``` Headers: `Authorization: Bearer <api_key>`, `Content-Type: application/json`, optional `Idempotency-Key`. The `inputs` field is plural (not `input`) and wraps capability-specific fields. Top-level fields like `email` are rejected — wrap them inside `inputs`. ### Re