"A guide to performing an SEO audit" matching MCP servers:

Cross-chain cryptocurrency swaps via Chainflip. Get quotes, execute swaps, and track progress. No API key required to get started.

Enables MCP clients to read public web pages as clean markdown, verify whether a quote appears on a page, check the health of up to 25 links, and audit any origin's x402 and agent-readiness setup. Tools are pay-per-call in USDC on Base via x402 with free previews, requiring no signup or API key.

AgentBureau provides the legal and physical infrastructure for AI agents to operate within the German jurisdiction. We bridge the gap between digital intelligence and real-world action by providing "Embodiment-as-a-Service." Through our API, agents can perform legally binding actions—like sending faxes, mailing physical letters, issuing invoices, forming entire companies (GmbH/UG), ...

Enables AI agents to read and bid on a paid message slot on Solana, with enforced spend limits, dry-run proposals, and an append-only audit log for every write.

An MCP server that provides programmable spend limits and audit trails for AI agents to make payments from a dedicated wallet, preventing overspend and unauthorized transactions.

Enables AI agents to enforce configurable spending policies before executing trades or x402 payments via Binance Agent OS, recording every policy decision onchain to an Ethereum Sepolia audit log.

An MCP server that enables AI agents to manage merchant payment processing through the BTCPay Server Greenfield REST API. It supports tools for creating invoices, managing stores, tracking payments, and performing Lightning Network operations.

An MCP server that enables AI agents to access paid AI inference and web tools via HTTP 402 micropayments in USDC on Base, using the agent's wallet as identity.

A server that adds Bitcoin payment capabilities to LLMs, enabling sending/receiving payments, creating charges, managing wallets, and performing other Bitcoin Lightning Network operations.

Enables querying cryptocurrency prices and performing basic financial calculations like USD to CLP conversion and loss percentage.

Enables AI agents to propose stock, ETF, and crypto trades through Alpaca paper trading while enforcing deterministic policy rules and recording every decision in an audit trail.

Enables AI agents to participate in a decentralized network, earn GSTD tokens by performing computational tasks, and communicate via the A2A protocol.

An MCP server that lets AI agents access higher.fun's open-source Solana launchpad through the public API and Solana RPC for scanning launches and trending coins, inspecting trades, holders, candles and safety data, checking creators and performing rug checks. It is currently read-only and requires no API keys.

A portable MCP server that exposes Lighter trading to any MCP-capable agent with safety-first features like mode-based gating, two-step confirmations, and audit logging.

Enables AI agents to read and write a self-hosted portfolio tracker through 25 MCP tools, covering net worth, flows, forecasts, decisions, and audit.

Provides Tether MOS telemetry (read-only) and Boltz BTC↔USDC atomic swap broker, enabling querying MOS sites, payouts, Bitcoin fee advice, and performing atomic swaps without custody.

Enables AI agents to pay x402 endpoints on Cardano through a policy-gated wallet with spend caps, payee allowlists, human approval, and an audit log.

Enables access to BigBugAI cryptocurrency tools for getting trending tokens and performing token analysis by contract address. Provides production-ready API access with rate limiting and authentication for crypto market intelligence.

Enables an MCP host to run an automated, non-destructive security audit of a paid x402 endpoint URL and receive a SECURE/FINDINGS/EXPOSED verdict with per-check evidence. The built-in tool handles the entire x402 payment flow — challenge, signed USDC authorization on Base, paid retry — using the user's own wallet, with a spend guard.

Enables Claude to monitor and execute Binance trading strategies through a bounded MCP tool interface, with risk controls and audit logging.

Enables querying cryptocurrency market data, refreshing data from CoinGecko, and performing market analysis through a FastMCP agent backed by a dlt pipeline and FastAPI.

Provides AI agents with tools to purchase a starter audit or triage for legal USDC earning routes, supporting checkout, triage, and payment processes.

Provides MCP tools to enforce spend policies (allow, deny, step-up, allowlist) on agent wallets with an immutable audit trail.

Checks live x402 routes across Base, Solana, and Algorand before agents spend. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled. Free preview and validate tools. Seller payment is separate; the agent keeps its wallet. Optional signed route-binding receipts support buyer-side checks.

Rescues USDC, USDT and USDG from wallets with no gas. Agents check a wallet for stuck or frozen stablecoins, quote a send or a swap into the gas coin, collect the wallet signature and track the transfer. Base, Arbitrum, Ethereum, Polygon, Avalanche, BNB Chain, HyperEVM, Robinhood Chain, Solana and Tron.

Enables agents to search and inspect live service offerings, generate x402 payment snippets, and understand blockchain-only balance policies.

MCP server for RugGuard, enabling AI agents to perform pre-trade rug checks on tokens, with paid tools for token scanning and pre-trade verification, and a free metrics resource.

Non-custodial on-chain escrow + AI arbitration for agent-to-agent USDC payments on Base. Seven tools wrap a verified EscrowV1 contract — create, deliver, confirm, dispute, resolve — with read-only introspection if no wallet key is provided.

Hourly news sentiment and typed market events (hack, regulation, listing, delisting, legal) for 30 crypto pairs, with source links on every signal. Four tools cover the latest score per symbol, history, classified events and the symbol list, and a free API key works out of the box

Enables MCP-capable agents to retrieve a tamper-evident decomposition of x402 network growth on Base and to place $399 human-reviewed endpoint or wallet audits paid over the x402 rail, without moving funds itself.