Strale - 290+ API capabilities for AI agents

Checks that the Strale API is reachable and the MCP server is running. Call this before a series of capability executions to verify connectivity, or when troubleshooting connection issues. Returns server status, version, tool count, capability count, solution count, and a timestamp. No API key required.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Explains how to start using Strale and what is available without credentials. Call this on first connection. Returns the current free-tier capability list with example inputs, the pay-per-call (x402) route that needs no signup, and how to reach the full registry. No API key required.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Executes a Strale capability by slug and returns the result. Use this when you need to perform any verification, validation, lookup, or data extraction from the capability registry. Call strale_search first to find the right slug and required input fields. Returns a result object with the capability output, latency, price charged, and data provenance. Several capabilities are free without an API key (10/day limit) — strale_search reports which. Paid capabilities debit from the wallet — check strale_balance first for high-value calls.

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Capability slug from strale_search results, e.g. 'swedish-company-data', 'vat-validate', 'iban-validate'"
    },
    "inputs": {
      "type": "object",
      "additionalProperties": {},
      "description": "Input parameters matching the capability's required fields. Check strale_search results for the expected input_fields."
    },
    "max_price_cents": {
      "type": "number",
      "description": "Maximum price in EUR cents. Default: 200 (€2.00). Execution fails if capability costs more."
    }
  },
  "required": [
    "slug",
    "inputs"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Searches the Strale capability registry by keyword, category, or natural language query. Use this when you need to find the right capability for a task but don't know the exact slug. Returns matching capabilities and solutions ranked by relevance, each with slug, name, description, category, and price in EUR cents. The registry spans company data, compliance, finance, web intelligence, and developer tools. No API key required to search.

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Search keyword (matched against name, description, slug)"
    },
    "category": {
      "type": "string",
      "description": "Filter by category: compliance, validation, data-extraction, developer-tools, web3, security, domain-intel, recruiting, sales, legal, text"
    },
    "offset": {
      "type": "number",
      "description": "Number of results to skip (for pagination). Default: 0"
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns the current Strale wallet balance. Call this before executing paid capabilities to verify sufficient funds, or after a series of calls to reconcile spend. Returns balance in EUR cents (integer) and formatted EUR string. Requires an API key — returns an auth instruction if none is configured.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns Strale's trust methodology as a short reference document — covers test cadence, audit records, and provenance. No API key required.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns the trust profile for a capability or solution. Call this before relying on a capability for high-stakes decisions, or when a user asks how reliable a specific check is. Returns lifecycle state, last-tested timestamp, recent test history, known limitations, data source and provenance, and cost envelope. Strale deliberately exposes no single numeric quality score — judge from the test history and limitations. No API key required.

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Capability or solution slug, e.g. 'swedish-company-data' or 'eu-company-due-diligence'"
    },
    "type": {
      "type": "string",
      "enum": [
        "capability",
        "solution"
      ],
      "default": "capability",
      "description": "Whether this is a capability or a bundled solution"
    }
  },
  "required": [
    "slug"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Retrieve a past execution record by transaction ID. Returns inputs, outputs, latency, price, data provenance, success/failure status, and failure categorization. Use this to inspect what a previous strale_execute call returned, debug failures, or provide an audit trail. Free-tier transactions are accessible by ID without an API key.

{
  "type": "object",
  "properties": {
    "transaction_id": {
      "type": "string",
      "description": "Transaction ID returned from a strale_execute call"
    }
  },
  "required": [
    "transaction_id"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns a decision-ready answer about an on-chain counterparty (wallet, smart contract, token, DeFi protocol, or bridge) in a single call. Surfaces verdict (proceed/review/block/insufficient_evidence), reason_codes (machine-parsable UPPERCASE_SNAKE_CASE), critical_flags, suggested_action, evidence map (sanctions, mixer-graded, scam-cluster, wallet-history, token-safety, contract-verification, protocol-risk, EAS attestations, ERC-8004 reputation, more), and a sidecar audit_url. Two modes: 'outbound' (agent vetting recipient pre-payment, full evaluator set, 8s budget) or 'reverse-call' (service publisher gating an inbound x402 buyer in real-time, critical evaluators only, sub-second SLA). Use before any agent transacts on-chain — sending value, swapping, staking, minting, bridging, or interacting with a contract.

{
  "type": "object",
  "properties": {
    "target": {
      "type": "string",
      "description": "On-chain target. EVM wallet/contract/token (0x...), Solana address, or DeFi protocol slug (e.g. 'aave', 'uniswap-v3')."
    },
    "target_type": {
      "type": "string",
      "enum": [
        "wallet",
        "contract",
        "token",
        "protocol",
        "bridge",
        "domain"
      ],
      "description": "Target kind. Inferred when omitted: 0x... → wallet (default), .eth/.sol → wallet, slug → protocol."
    },
    "chain": {
      "type": "string",
      "description": "Chain. EVM: 'ethereum' (default), 'base', 'polygon', 'arbitrum', 'optimism', 'bsc'. Or 'solana'."
    },
    "action": {
      "type": "string",
      "enum": [
        "send_payment",
        "swap",
        "stake",
        "mint",
        "interact",
        "bridge"
      ],
      "description": "Optional intended action. When provided, enables pre-trade simulation (outbound mode) and tunes verdict severity."
    },
    "amount_usd": {
      "type": "number",
      "description": "Optional amount in USD. Sharpens verdict for high-value flows."
    },
    "mode": {
      "type": "string",
      "enum": [
        "outbound",
        "reverse-call"
      ],
      "description": "Default 'outbound' (agent → recipient, 8s budget, all evidence). Use 'reverse-call' when you are an x402 service publisher gating an inbound buyer (critical evidence only, sub-second SLA)."
    },
    "agent_id": {
      "type": "string",
      "description": "Optional ERC-8004 agent identifier for the calling agent."
    },
    "caller_jurisdiction": {
      "type": "string",
      "description": "Optional ISO country code for jurisdiction-aware verdict (US, EU, UK, etc.)."
    }
  },
  "required": [
    "target"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}