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Reinx provides 13 MCP tools for connecting AI agents to financial infrastructure. Works with Claude, ChatGPT, and any LLM that supports MCP.

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Server URL

https://mcp.reinx.ai/mcp

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Configuration

{
  "mcpServers": {
    "reinx": {
      "type": "http",
      "url": "https://mcp.reinx.ai/mcp",
      "headers": {
        "Authorization": "Bearer sk_reinx_live_your_key_here"
      }
    }
  }
}
Or with Claude Code: 
claude mcp add --transport http reinx https://mcp.reinx.ai/mcp \
  --header "Authorization: Bearer sk_reinx_live_your_key_here"

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Available tools

ToolDescription
check_balanceLive wallet holdings (per-asset + USD total). Use get_budget_utilization for remaining budget — under just-in-time funding the wallet balance can be low while budget is available
request_wallet_paymentRequest a wallet payment on any supported network (Base, Polygon, Arbitrum, Optimism, Solana)
get_transactionsAgent’s own transaction history
get_spending_rulesReturns agent’s spending policy
get_denial_feedbackRecent denial reasons with human feedback
get_agent_statusStatus, budget utilization, health indicator
submit_approval_requestRequest human approval for a planned purchase
get_budget_utilizationBudget vs actual for a time period
list_approved_merchantsMCC allowlist or approved merchant list
get_wallet_addressesEVM and/or Solana wallet addresses
check_merchant_allowedPre-check if a merchant is allowed
get_spending_summarySpending breakdown by category, merchant, day
check_approval_statusPoll for approval result on a pending request
Card-rail tools (request_card_payment, request_spt) ship with the card launch, expanding the surface to 16 tools.

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Requirements

  • Every tool call requires a valid API key.
  • Every tool call requires a purpose field (3–500 characters) explaining why the agent is acting — recorded for audit and scoring.
  • All calls are written to an immutable audit log.

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Go deeper

Payment Workflow

The request → poll → learn loop, idempotency, and status semantics.

Tool Reference

Exact parameters and limits for every tool.