Alby Bitcoin Payments MCP
MCP ServerFree** - Connect any bitcoin lightning wallet to agents to send and receive payments instantly at low cost.
Capabilities7 decomposed
lightning network payment initiation via mcp protocol
Medium confidenceEnables AI agents to initiate Bitcoin Lightning Network payments by exposing standardized MCP tool endpoints that translate agent requests into Lightning invoice creation and payment routing. The implementation wraps Alby's wallet API through MCP's tool-calling interface, allowing agents to specify payment amounts, recipients, and metadata which are then routed through the Lightning Network for near-instant settlement at minimal fees.
Directly exposes Lightning Network payment capability through MCP's standardized tool interface, allowing any MCP-compatible agent to transact without custom wallet SDKs or key management — the agent never handles private keys, only delegates payment requests to Alby's managed wallet service.
Unlike REST API integrations that require agents to manage HTTP requests and error handling, MCP's tool-calling abstraction lets agents treat Lightning payments as native capabilities with automatic schema validation and structured error handling.
lightning invoice generation and payment request creation
Medium confidenceGenerates Lightning Network invoices (BOLT11 format) that agents can embed in responses or share with users, enabling inbound payments to the Alby wallet. The capability accepts amount specifications, optional descriptions, and expiration parameters, then returns a scannable invoice string and corresponding LNURL that can be used by any Lightning-compatible wallet to pay the agent or service.
Wraps Alby's invoice generation API through MCP, allowing agents to programmatically create Lightning invoices without manual wallet interaction — invoices are generated on-demand and can be embedded directly in agent responses or shared via QR codes.
More seamless than traditional payment gateways because invoices are generated instantly without third-party processing delays, and Lightning's native format means users can pay directly from any Lightning wallet without account creation.
wallet balance and channel state querying
Medium confidenceExposes read-only MCP tools that allow agents to query the connected Alby wallet's current balance (on-chain and Lightning), active channel states, liquidity availability, and transaction history. This capability enables agents to make informed decisions about payment feasibility before attempting transactions and to provide users with accurate wallet status information.
Provides agents with direct read access to Alby wallet state through MCP tools, enabling conditional payment logic based on real-time balance and liquidity — agents can query before attempting payments and adjust behavior based on available funds.
Unlike webhook-based balance notifications, MCP tool queries are synchronous and agent-initiated, allowing agents to proactively check state before making decisions rather than reacting to asynchronous events.
lnurl and lightning address resolution for recipient validation
Medium confidenceResolves Lightning addresses (e.g., user@domain.com) and LNURL endpoints to extract payment routing information, enabling agents to validate recipient addresses before initiating payments. The capability handles the LNURL protocol's metadata exchange, verifies recipient information, and returns routing details that can be used to construct payment requests with confidence.
Implements LNURL protocol resolution as an MCP tool, allowing agents to validate and resolve Lightning addresses without manual parsing — handles the full LNURL metadata exchange and returns structured recipient information.
More robust than simple string parsing because it validates addresses against actual LNURL servers and retrieves metadata, preventing agents from attempting payments to invalid or incompatible recipients.
payment status tracking and confirmation polling
Medium confidenceProvides MCP tools to query the status of previously initiated payments, including confirmation state, routing details, and failure reasons. Agents can poll payment status to determine if transactions have settled, enabling workflows that depend on payment confirmation before proceeding to next steps.
Exposes payment status as queryable MCP tools, enabling agents to implement confirmation-dependent workflows without external state management — agents can poll status and make decisions based on confirmation state.
More agent-native than webhook-based confirmations because agents can synchronously query status within their decision logic, though less efficient than event-based notifications for high-volume payment tracking.
multi-wallet and multi-provider abstraction layer
Medium confidenceAbstracts Alby wallet operations behind a standardized MCP interface that could theoretically support multiple Lightning wallet providers (though currently Alby-focused). The abstraction allows agents to interact with Lightning payments through a consistent tool schema regardless of underlying wallet implementation, enabling potential future support for other providers like LND, Breez, or Eclair.
Designs MCP tool schemas to be provider-agnostic, allowing potential future implementation of multiple Lightning wallet backends without changing agent code — currently Alby-only but architecturally extensible.
More flexible than wallet-specific SDKs because the MCP abstraction layer could support multiple providers, though currently only Alby is implemented and multi-provider support would require additional development.
error handling and payment failure recovery guidance
Medium confidenceProvides structured error responses and recovery guidance when payments fail, including specific failure reasons (insufficient balance, channel saturation, routing failure, timeout) and suggested remediation steps. Agents can parse these errors to implement intelligent retry logic, fallback payment methods, or user-facing error messages.
Structures payment failure responses with categorized error codes and recovery guidance, enabling agents to implement intelligent error handling rather than treating all failures identically — agents can distinguish between temporary routing failures and permanent balance issues.
More informative than generic API errors because failure responses include specific categorization and suggested remediation, allowing agents to make smarter decisions about retries and fallbacks.
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
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@phantom/mcp-server
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x402 MCP server for AI agent payments. Lets Claude, Cursor, LangChain and CrewAI pay for HTTP 402–gated APIs with USDC micropayments on Base L2. Non-custodial, 0% fee. Unlike Cloudflare Pay-Per-Crawl, works on any host and settles directly on-chain.
Adfin
** - The only platform you need to get paid - all payments in one place, invoicing and accounting reconciliations with [Adfin](https://www.adfin.com/).
Zapier
** - Connect your AI Agents to 8,000 apps instantly.
Fewsats
** - Enable AI Agents to purchase anything in a secure way using [Fewsats](https://fewsats.com)
Openfort
** - Supercharge your AI assistant with plug-and-play access to authentication, project scaffolding, and smart wallet tooling.
Best For
- ✓AI agent developers building payment-enabled autonomous systems
- ✓Teams building Lightning-native applications with agent automation
- ✓Developers prototyping agent-to-human payment flows
- ✓Agents providing paid services or content that require upfront payment
- ✓Developers building agent-to-user payment flows with Lightning
- ✓Teams implementing pay-per-request or subscription-like models via Lightning
- ✓Agents managing autonomous payment workflows with balance constraints
- ✓Developers building agent-driven financial dashboards or reporting
Known Limitations
- ⚠Requires active Alby wallet with sufficient Lightning channel liquidity — payments fail if channels are saturated or underfunded
- ⚠No built-in retry logic for failed payments — agent must handle payment failures and implement idempotency
- ⚠Lightning Network routing can fail for edge-case payment amounts or obscure recipients without fallback mechanisms
- ⚠No transaction batching — each payment is a separate MCP call, adding latency for bulk operations
- ⚠Invoices have configurable expiration times (typically 1 hour default) — expired invoices cannot be paid and must be regenerated
- ⚠No built-in invoice tracking or payment confirmation polling — agent must implement external state management to track which invoices were paid
Requirements
Input / Output
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** - Connect any bitcoin lightning wallet to agents to send and receive payments instantly at low cost.
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