# Strale

> One API call. Verified data your agent can trust. 298+ independently tested data capabilities across 25 countries.

Strale provides business data capabilities that AI agents can use at runtime via MCP, A2A, REST API, or x402 micropayments. Free capabilities are continuously canary-tested; paid capabilities are observed via production traffic and piggyback test suites. Every call returns an audit record.

## Use Strale When Your Agent Needs To:

- Validate IBANs, VAT numbers, LEI codes, or BIC/SWIFT codes
- Look up company data across 25 countries (live catalogue)
- Check sanctions lists and adverse media
- Verify SSL certificates, DNS records, or domain availability
- Validate EU addresses and postal codes
- Convert currencies with real-time exchange rates
- Run compliance checks (KYB, AML, GDPR)
- Extract data from invoices, receipts, contracts, or web pages
- Assess wallet risk, token contract safety, or DeFi protocol health
- Resolve ENS names, check VASP licensing, detect phishing dApps

## Web3 and DeFi Agent Capabilities

17 Web3-specific capabilities and 9 solutions for on-chain agents. All payable via x402 (USDC on Base) or standard API key.

Wallet security: wallet-risk-score, approval-security-check, wallet-age-check, wallet-balance-lookup, wallet-transactions-lookup.
Token and contract safety: token-security-check, contract-verify-check, phishing-site-check.
DeFi intelligence: protocol-tvl-lookup, protocol-fees-lookup, stablecoin-flow-check, fear-greed-index, gas-price-check.
Identity and compliance: ens-resolve, ens-reverse-lookup, vasp-verify, vasp-non-compliant-check.

Pre-built solutions (single-call multi-step workflows):
- web3-counterparty-dd: wallet risk + age + ENS + sanctions + PEP + adverse media ($0.12)
- web3-token-safety: contract security + verification + deployer risk + domain ($0.05)
- web3-pre-tx-gate: go/no-go middleware for DeFi agents ($0.12)
- web3-dapp-trust: phishing detection + domain intelligence ($0.05)
- web3-protocol-health: TVL + fees + stablecoins + domain trust ($0.05)
- web3-pre-trade: price + security + TVL + sentiment + gas ($0.08)
- web3-wallet-snapshot: balance + transactions + age + ENS + price ($0.05)
- web3-vasp-check: EU MiCA VASP verification + sanctions ($0.08)
- web3-wallet-identity: ENS reverse + risk + age + balance ($0.08)

## Web3 Assurance (decision-ready on-chain counterparty answer)

For agents that transact on-chain (send value, swap, stake, mint, bridge, or call a contract), Strale ships Web3 Assurance — a single call that returns a verdict (proceed / review / block / insufficient_evidence) plus machine-parsable reason_codes, critical_flags, suggested_action, evidence map, and a sidecar audit_url. Sister product to Payee Assurance (off-chain KYB).

Two modes:
- outbound: agent vetting recipient pre-payment. Full evaluator set, 8s budget. Default.
- reverse-call: x402 service publisher gating an inbound buyer in real-time. Critical evaluators only, sub-second SLA.

20 evaluators behind one call: sanctions (multi-jurisdiction), mixer-graded scoring (Tornado-Cash-graded per OFAC March 2025 precedent — graded, not binary), scam-cluster cross-reference (ScamSniffer), wallet-history risk (GoPlus address security), token safety (GoPlus token security), contract verification (Etherscan + Sourcify), approval inventory (drainer cross-reference), protocol risk (DefiLlama TVL + hacks DB + governance), bridge legitimacy (DefiLlama + L2Beat), audit-firm cross-reference (Certik/OZ/Trail of Bits/Cyfrin/Sherlock/Code4rena), pre-trade simulation (Tenderly), EAS attestations, ERC-8004 reputation, sister-rug detector, REKT Database, Web3 Antivirus.

Endpoint: POST https://api.strale.io/v1/web3-assurance
MCP tool: strale_web3_assurance
Drop-in middleware: Hono, Express, FastAPI, LangGraph, Coinbase AgentKit
Pricing: $0.03 USDC/call standard via x402 + Stripe annual commits

## Quick Start

### MCP (recommended for Claude, Cursor, Windsurf)
Endpoint: https://api.strale.io/mcp
Transport: Streamable HTTP
Auth: Bearer token (API key from https://strale.dev)
Free tool: strale_search works without auth

### A2A (Agent-to-Agent)
Agent Card: https://api.strale.io/.well-known/agent-card.json
Task endpoint: https://api.strale.io/a2a

### REST API
POST https://api.strale.io/v1/do
Body: { "capability": "iban-validate", "input": { "iban": "DE89370400440532013000" } }

### x402 (pay-per-request, no API key needed)
GET https://api.strale.io/x402/iban-validate?iban=DE89370400440532013000
Pay with USDC on Base

## Free Tier

The iban-validate capability is free. Use it to test the integration without an API key via MCP (strale_search to discover, then call iban-validate).

## Trust & Quality

Free capabilities are tested hourly with canary inputs that don't consume vendor quota; paid capabilities are observed via production traffic, piggyback test suites, and any zero-cost auth-less probes the vendor permits. Every call to /v1/do produces an audit record retrievable at /v1/audit/{transactionId}.

## Links

- Homepage: https://strale.dev
- Docs: https://strale.dev/docs
- MCP Server Card: https://api.strale.io/.well-known/mcp.json
- AI Catalog: https://api.strale.io/.well-known/ai-catalog.json
- GitHub: https://github.com/petterlindstrom79/strale
- npm: https://www.npmjs.com/package/strale-mcp
- Contact: hello@strale.io