"Information about guardrails" matching MCP servers:

Enables MCP clients to access all endpoints of an x402 gateway by paying real-time microtransactions (USDC on Base) per API call, with automatic tool discovery and spend guardrails.

Enables an AI agent to create and capture orders, refund captures, and pay suppliers through PayPal while the operator's policy fixes the payee, currency, and credential behind a broker that the agent never sees. Adds spending limits, human-approval thresholds, server-derived idempotency, and a hash-chained audit ledger, so a compromised or injected agent can only pick an operation and bounded values.

Enables querying MRR, churn, and revenue from Stripe, Gumroad, and Lemon Squeezy directly inside Claude, allowing natural language questions about business metrics.

Lets Claude run a small online store's back office — searching customers, looking up and listing orders, generating sales reports and low-stock alerts, updating order status, issuing refunds, and creating invoices — with server-side guardrails like refund caps, idempotency keys, an order state machine, and audit logging on every write. Includes a deterministic eval harness that grades agent behaviour against the actual database state.

Bridges AP2 and x402 payment mandates into ISO 20022 pain.001/pacs.008 records with spending-cap, expiry and authorisation guardrails, via an MCP server.

Provides AI agents with a wallet and access to 900+ pay-per-call intelligence APIs across 74 verticals, with automatic USDC payments on Base and built-in spend guardrails.

Enables an MCP client to answer revenue questions about a Stripe account — normalized MRR/ARR, subscription and customer churn, failed payments and a one-call revenue summary, all grouped per currency. Access is read-only and a built-in deterministic demo dataset lets every tool be tried without a Stripe API key.

AI payment guardrails for Python & MCP: spend-capped agent identity (KYA), dry-run/budget/approval gates, prompt-injection defense, encrypted secret vault.

Tenant-bound MCP server for agent spend authorization, policy guardrails, evidence, escrow settlement, and portable receipts. Works with Cursor and Claude Code via stdio; npm (@paybond/kit) and Python (paybond-kit).

NexaLayer MCP Server — a Model Context Protocol server that lets AI agents create and manage dynamic and static proxy sessions with budget guardrails.

Enables users to connect bank accounts within a chat session using Sophtron's UCW widget and query account information, owner details, and transactions persistently.

Enables AI assistants to read Itaú bank account information (balances, statements, credit card bills, investments) via Open Finance Brasil, read-only.

Connects Mercado Pago accounts via Open Finance Brasil to AI assistants for read-only queries about balances, statements, credit card bills, and investments.

Exposes the full HelloAsso v5 API — memberships, tickets, donations, payments, refunds and checkouts — to any MCP client as 36 tools plus summaries, so assistants can resolve organizations, forms and periods from plain URLs and natural language and answer questions about an association's finances. Money-moving operations are guarded behind explicit confirmation and an optional read-only mode.

Enables AI agents to retrieve and analyze Dwolla payment platform data using natural language, with read-only access to accounts, transfers, customers, and compliance information.

Enables autonomous AI agents to discover products, compute tax-accurate quotes, and complete payments through Razorpay with deterministic budget, quantity, and idempotency guardrails.

MCP server for buying advertising outcomes such as Telegram subscribers and website traffic from a prepaid balance. Provides tools for campaign management, forecasting, and budget control, with guardrails so agents can spend but not fund or withdraw.

Connects PagBank accounts to AI assistants via Open Finance Brasil, enabling natural language queries about balances, statements, credit card bills, and investments. Read-only and regulated by the Central Bank.

AI-powered personal finance analysis through Claude AI using Plaid integration, enabling natural language queries about transactions, subscriptions, budgets, and spending trends.

Enables MCP clients such as Claude Desktop to request spending permission, search and view products, complete checkouts, and check spending status, while every payment is validated against the user's configured guardrails before it reaches PayPal.

Exposes Charles Schwab brokerage data to AI assistants via MCP, enabling natural language queries about positions, option chains, account balances, and trade audits with Lightning micropayment monetization.

Exposes Recapfy's paid endpoints as MCP tools to ask questions about YouTube videos and fetch full transcripts, with automatic USDC payment on Solana per call.

Enables natural language queries about Porto Bank accounts via Open Finance, including balances, statements, credit card bills, and investments, using Claude, ChatGPT, and AI agents.

Connects Player's Bank via Open Finance Brasil to AI assistants, enabling natural language queries about balances, statements, card bills, and investments, read-only.

Exposes subscription insights to AI clients, including platform statistics and subscription plan information.

Connects 99Pay accounts to AI assistants via Open Finance Brazil, enabling natural language queries about balances, statements, card bills, and investments in read-only mode.

Enables querying Brazilian toll payment information (Pedágio Digital) from an official source through a hosted, read-only MCP server, with pay-per-use prepaid credits and no platform credentials required.

Connects RecargaPay accounts to AI agents via Open Finance Brasil, enabling read-only queries about balances, statements, credit card bills, and investments in natural language.

Enables AI agents and LLMs to interact with the PAYONE Commerce Platform through MCP tools for managing commerce cases, checkouts, payments, orders, and payment information.

Connects your Ágora bank account via Open Finance Brasil to AI agents like Claude and ChatGPT, enabling natural language queries about balances, statements, credit card bills, and investments in read-only mode.