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Implements MCP tool schema bindings that translate natural language agent requests into authenticated Stripe API calls with proper error handling and transaction state management.","intents":["Enable an AI agent to process payments on behalf of users without exposing API keys","Create a conversational interface for payment operations (charges, refunds, subscription management)","Integrate payment processing into multi-step agent workflows that require financial transactions"],"best_for":["AI agent developers building payment-enabled applications","Teams implementing conversational commerce or AI-driven billing systems","Developers prototyping autonomous agents that need transaction capabilities"],"limitations":["Requires valid Stripe API key with appropriate permissions — no fallback to test mode by default","MCP protocol adds request/response serialization overhead (~50-100ms per transaction)","No built-in idempotency tracking — duplicate agent requests may create duplicate charges without deduplication logic","Limited to Stripe's synchronous API — webhook-based async operations require external orchestration"],"requires":["Stripe account with API keys (publishable and secret)","MCP client implementation (Claude Desktop, custom MCP runner, or compatible LLM interface)","Node.js runtime for the MCP server"],"input_types":["structured payment parameters (amount, currency, customer_id, payment_method)","natural language agent instructions"],"output_types":["payment confirmation objects (charge_id, status, amount, timestamp)","error responses with Stripe error codes and recovery suggestions"],"categories":["tool-use-integration","payment-processing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_8bitsats-mcp-x402-stripe-privy-solana-agent__cap_1","uri":"capability://tool.use.integration.privy.authentication.and.wallet.abstraction","name":"privy authentication and wallet abstraction","description":"Integrates Privy's embedded wallet and authentication system through MCP, allowing agents to verify user identity, manage wallet connections, and access user credentials without direct blockchain interaction. Implements Privy's OAuth-like flow adapted for MCP's request/response model, with support for multi-chain wallet abstraction (Solana, Ethereum, etc.).","intents":["Verify user identity before executing sensitive agent operations (payments, transfers)","Retrieve authenticated user wallet addresses across multiple blockchains","Manage user session state and credential refresh within agent workflows"],"best_for":["Developers building Web3 agents that require user authentication","Teams implementing multi-chain wallet support without managing private keys","Non-custodial application builders who want Privy's embedded UX in agent contexts"],"limitations":["Privy's embedded wallet requires browser context — MCP server cannot directly render Privy's UI, requiring separate client-side integration","Session tokens have expiration windows — agents must handle token refresh or re-authentication flows","Wallet abstraction is read-only for most operations; signing transactions requires additional Privy SDK integration outside MCP scope"],"requires":["Privy API credentials (app_id, secret_key)","Privy SDK installed in the MCP server environment","User must have completed Privy authentication flow before agent can access wallet data"],"input_types":["user session tokens or Privy user IDs","wallet chain identifiers (solana, ethereum, polygon)"],"output_types":["authenticated user objects with wallet addresses","multi-chain wallet metadata (balance, chain, address)","authentication status and session validity"],"categories":["tool-use-integration","authentication"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_8bitsats-mcp-x402-stripe-privy-solana-agent__cap_2","uri":"capability://tool.use.integration.solana.blockchain.interaction.and.transaction.building","name":"solana blockchain interaction and transaction building","description":"Provides MCP tools for querying Solana blockchain state, building unsigned transactions, and preparing transaction payloads for signing. Uses Solana Web3.js library to construct transaction instructions, manage program interactions, and serialize transactions into formats compatible with Privy or other signers. Handles RPC communication with Solana validators through configurable endpoints.","intents":["Query Solana account balances, token holdings, and on-chain state from within agent workflows","Build and prepare Solana transactions (transfers, token swaps, program calls) without executing them","Construct multi-instruction transactions that agents can review or sign through external signers"],"best_for":["Solana dApp developers building autonomous agents","Teams implementing AI-driven trading or portfolio management on Solana","Developers prototyping multi-step blockchain workflows that require agent decision-making"],"limitations":["Transaction building is unsigned — actual execution requires separate signing step (via Privy or external signer), adding latency","RPC rate limits apply — high-frequency agents querying state may hit endpoint throttling (typically 100-600 RPS depending on provider)","No built-in transaction simulation — agents cannot preview transaction outcomes before signing","Solana's dynamic fee structure means estimated fees may differ from actual fees at execution time"],"requires":["Solana Web3.js library (v1.70+)","Solana RPC endpoint (Helius, QuickNode, or self-hosted validator)","Solana program addresses for any custom program interactions"],"input_types":["Solana public keys (base58 encoded)","transaction parameters (recipient, amount, token_mint)","program instruction data (for custom program calls)"],"output_types":["account data (balance, token holdings, program state)","unsigned transaction objects (serialized, ready for signing)","transaction simulation results (if RPC supports)"],"categories":["tool-use-integration","blockchain-interaction"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_8bitsats-mcp-x402-stripe-privy-solana-agent__cap_3","uri":"capability://data.processing.analysis.multi.chain.wallet.balance.and.state.queries","name":"multi-chain wallet balance and state queries","description":"Aggregates balance and account state queries across Solana and other blockchains (via Privy's wallet abstraction), returning normalized wallet data through a single MCP interface. Queries multiple RPC endpoints in parallel and caches results to reduce latency, with fallback logic if primary endpoints are unavailable.","intents":["Retrieve current wallet balances across multiple blockchains in a single agent call","Monitor token holdings and trigger agent actions based on balance thresholds","Compare balances across chains to inform multi-chain routing decisions"],"best_for":["Multi-chain portfolio tracking agents","Developers building cross-chain arbitrage or rebalancing bots","Teams implementing wallet dashboards with AI-driven insights"],"limitations":["Balance queries are point-in-time snapshots — no historical balance tracking without external storage","RPC latency varies by endpoint and network congestion — queries may take 500ms-2s depending on chain load","Cache invalidation is time-based (typically 30-60s) — agents may see stale balances if queried immediately after transactions","Token metadata (decimals, symbols) requires additional lookups — not all token data is cached"],"requires":["RPC endpoints for each chain (Solana, Ethereum, Polygon, etc.)","Privy integration for wallet address resolution","Token metadata provider (Solana Token List, Ethereum token registries)"],"input_types":["wallet addresses (per-chain format)","token mint addresses or contract addresses","chain identifiers"],"output_types":["normalized balance objects (amount, decimals, symbol, chain)","aggregated portfolio value (if price data available)","token metadata (name, symbol, decimals)"],"categories":["data-processing-analysis","blockchain-interaction"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_8bitsats-mcp-x402-stripe-privy-solana-agent__cap_4","uri":"capability://planning.reasoning.agent.driven.payment.and.transaction.orchestration","name":"agent-driven payment and transaction orchestration","description":"Coordinates multi-step workflows combining Stripe payments, Solana transactions, and Privy authentication through MCP's tool-calling interface. Implements state machine logic that sequences operations (authenticate user → check balance → initiate payment → build blockchain transaction → sign → execute), with error recovery and transaction rollback capabilities.","intents":["Execute end-to-end payment flows where Stripe charges fund Solana transactions","Implement conditional transaction logic (e.g., only execute blockchain transfer if payment succeeds)","Build autonomous workflows that span traditional finance (Stripe) and blockchain (Solana)"],"best_for":["Developers building hybrid fintech/Web3 applications","Teams implementing AI-driven payment routing across payment rails","Founders prototyping autonomous financial agents"],"limitations":["State machine complexity grows with workflow steps — no built-in visual workflow editor, requiring manual state management","Atomic transactions across Stripe and Solana are not guaranteed — partial failures require manual reconciliation (e.g., Stripe charge succeeds but Solana transaction fails)","Agent decision-making latency compounds across steps — multi-step workflows may take 5-15 seconds end-to-end","No built-in audit logging — requires external logging to track workflow execution for compliance"],"requires":["Stripe API keys with charge permissions","Solana RPC endpoint and transaction signing capability","Privy authentication for user verification","MCP client capable of sequential tool calling with state persistence"],"input_types":["user intent (natural language describing desired transaction)","payment amount and currency","blockchain destination address"],"output_types":["workflow execution status (pending, completed, failed)","Stripe charge ID and transaction hash","error details with recovery suggestions"],"categories":["planning-reasoning","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_8bitsats-mcp-x402-stripe-privy-solana-agent__cap_5","uri":"capability://safety.moderation.error.handling.and.transaction.recovery.with.agent.feedback","name":"error handling and transaction recovery with agent feedback","description":"Implements structured error responses for failed payments, blockchain transactions, and authentication errors, with recovery suggestions that agents can act on. Maps Stripe error codes, Solana RPC errors, and Privy auth failures to actionable recovery steps (retry with backoff, use alternative payment method, re-authenticate), enabling agents to autonomously recover from transient failures.","intents":["Provide agents with clear error context so they can decide whether to retry, escalate, or fail gracefully","Automatically retry transient failures (network timeouts, rate limits) without user intervention","Suggest alternative payment methods or chains when primary options fail"],"best_for":["Developers building resilient autonomous agents","Teams implementing high-availability payment systems","Builders who want agents to handle edge cases without human intervention"],"limitations":["Recovery logic is heuristic-based — not all errors have safe automatic recovery paths (e.g., insufficient funds cannot be auto-recovered)","Retry logic uses exponential backoff but does not guarantee eventual success — some errors are permanent","Error messages expose some internal system details — may require sanitization before returning to untrusted clients","No built-in circuit breaker — agents may retry indefinitely if endpoints are down"],"requires":["Stripe error code documentation and mapping","Solana RPC error specifications","Privy authentication error codes","Configurable retry policies and backoff parameters"],"input_types":["error objects from Stripe, Solana RPC, or Privy","transaction context (amount, recipient, chain)"],"output_types":["structured error response with error code and message","recovery suggestions (retry, use alternative, escalate)","retry metadata (backoff delay, attempt count)"],"categories":["safety-moderation","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_8bitsats-mcp-x402-stripe-privy-solana-agent__cap_6","uri":"capability://tool.use.integration.mcp.protocol.compliance.and.tool.schema.definition","name":"mcp protocol compliance and tool schema definition","description":"Implements the Model Context Protocol specification for tool definition, request/response serialization, and error handling. Defines JSON schemas for each capability (Stripe payments, Solana transactions, Privy auth) that conform to MCP's tool-calling standard, enabling compatibility with any MCP-compliant client (Claude, custom LLM runners, etc.). Handles MCP's request/response lifecycle including parameter validation and type coercion.","intents":["Ensure the MCP server is compatible with Claude and other MCP clients without custom integration code","Define clear tool schemas so LLMs understand parameter requirements and response formats","Enable tool discovery and documentation through MCP's introspection mechanisms"],"best_for":["Developers integrating this MCP server with Claude or other LLM platforms","Teams building custom MCP clients that need standardized tool interfaces","Builders who want to avoid vendor lock-in by using MCP's open standard"],"limitations":["MCP protocol overhead adds ~50-100ms per request due to JSON serialization and deserialization","Tool schemas must be statically defined — dynamic tool generation is not supported","MCP does not support streaming responses — all tool outputs must be complete before returning","Parameter validation is schema-based — complex validation logic must be implemented in tool handlers"],"requires":["MCP specification compliance (v1.0 or later)","JSON Schema support for tool parameter definitions","MCP client implementation (Claude Desktop, custom runner, etc.)"],"input_types":["MCP tool call requests with JSON parameters"],"output_types":["MCP tool result responses with JSON-serializable data","MCP error responses with error codes and messages"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":26,"verified":false,"data_access_risk":"high","permissions":["Stripe account with API keys (publishable and secret)","MCP client implementation (Claude Desktop, custom MCP runner, or compatible LLM interface)","Node.js runtime for the MCP server","Privy API credentials (app_id, secret_key)","Privy SDK installed in the MCP server environment","User must have completed Privy authentication flow before agent can access wallet data","Solana Web3.js library (v1.70+)","Solana RPC endpoint (Helius, QuickNode, or self-hosted validator)","Solana program addresses for any custom program interactions","RPC endpoints for each chain (Solana, Ethereum, Polygon, etc.)"],"failure_modes":["Requires valid Stripe API key with appropriate permissions — no fallback to test mode by default","MCP protocol adds request/response serialization overhead (~50-100ms per transaction)","No built-in idempotency tracking — duplicate agent requests may create duplicate charges without deduplication logic","Limited to Stripe's synchronous API — webhook-based async operations require external orchestration","Privy's embedded wallet requires browser context — MCP server cannot directly render Privy's UI, requiring separate client-side integration","Session tokens have expiration windows — agents must handle token refresh or re-authentication flows","Wallet abstraction is read-only for most operations; signing transactions requires additional Privy SDK integration outside MCP scope","Transaction building is unsigned — actual execution requires separate signing step (via Privy or external signer), adding latency","RPC rate limits apply — high-frequency agents querying state may hit endpoint throttling (typically 100-600 RPS depending on provider)","No built-in transaction simulation — agents cannot preview transaction outcomes before signing","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.24,"ecosystem":0.48999999999999994,"match_graph":0.25,"freshness":0.5,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:25.061Z","last_scraped_at":"2026-05-03T15:19:41.319Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=8bitsats-mcp-x402-stripe-privy-solana-agent","compare_url":"https://unfragile.ai/compare?artifact=8bitsats-mcp-x402-stripe-privy-solana-agent"}},"signature":"dIIYARgl6hOyewuTrYkg0DSaCrq93VPVQnKN990fjvAbhNDXZ4bQSdolexE07r9dl/kWmr4g7bNfjoJz/sdLCg==","signedAt":"2026-06-20T11:08:59.643Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/8bitsats-mcp-x402-stripe-privy-solana-agent","artifact":"https://unfragile.ai/8bitsats-mcp-x402-stripe-privy-solana-agent","verify":"https://unfragile.ai/api/v1/verify?slug=8bitsats-mcp-x402-stripe-privy-solana-agent","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}