 Open-source MCP infrastructure — hosted servers, OAuth, and multi-tenant tool access for agents MCPOpenAPIllms.txt | mcp+3 | MCP+2 | — | api-key, Platforms | 4/5 | | |
 Notification infrastructure API — workflows, preferences, and multi-channel delivery for agent output MCPOpenAPIllms.txt | notifications+2 | MCP+2 | — | api-key, Messaging | 4/5 | | |
 Image, video, and 3D generation with an MCP server agents can drive directly MCPOpenAPIllms.txt | image+4 | MCP+2 | — | api-key, Media | 4/5 | | |
 OpenTelemetry-native agent observability with trace compression and low-volume pricing MCPOpenAPI | observability+3 | MCP+1 | — | api-key, Observability | 4/5 | | |
 Web search API with native parallel queries and sourced answers, priced per search MCPOpenAPIllms.txt | search+2 | MCP+2 | — | api-key, Search | 4/5 | | |
 PDF and document parsing built for RAG pipelines, part of LlamaCloud MCPOpenAPI | documents+3 | MCP+1 | — | api-key, Vision | 4/5 | | |
 Maps, geocoding, directions, and isochrone APIs agents can call per request MCPOpenAPI | maps+3 | MCP+1 | — | api-key, Search | 4/5 | | |
 Enterprise card issuing platform with agentic payment controls and an MCP server over the issuing APIs MCPOpenAPI | virtual-cards+4 | MCP+1 | — | api-key, Payments | 4/5 | | |
 TypeScript agent framework with workflows, memory, evals, and a deployable server MCPOpenAPIllms.txt | agents+4 | MCP+2 | — | api-key, Platforms | 4/5 | | |
 Code-first integration platform handling OAuth, syncs, webhooks, and tool definitions agents call MCPOpenAPIllms.txt | integrations+4 | MCP+2 | — | m2m-oauth, Platforms | 4/5 | | |
 Metering, authorization, and settlement for agent APIs, including an x402 facilitator and credit-based plans MCPOpenAPIllms.txt | monetization+4 | MCP+2 | x402 | api-key, Payments | 4/5 | | |
 Read and write Notion pages and databases via API or the remote MCP server — durable agent knowledge base MCPOpenAPIllms.txt | knowledge-base+3 | MCP+2 | — | m2m-oauth, Memory | 4/5 | | |
 Agent-ready checkout and payouts, an ACP payment provider, plus a remote MCP server over the PayPal APIs MCPOpenAPIllms.txt | payments+4 | MCP+2 | ACP | m2m-oauth, Payments | 4/5 | | |
 Bank account data, balances, and payment initiation, with a remote MCP server over the dashboard APIs MCPOpenAPIllms.txt | banking+3 | MCP+2 | — | api-key, Payments | 4/5 | | |
 Stocks, options, forex, and crypto market data over REST and WebSocket, with a free self-serve API key MCPllms.txt | market-data+4 | MCP+1 | — | api-key, Markets | 4/5 | | |
 Serverless Postgres with a remote MCP server for provisioning and querying databases MCPOpenAPIllms.txt | database+3 | MCP+2 | — | api-key, Memory | 4/5 | | |
 RPC endpoints and blockchain data APIs with pay-per-request access for agents MCPOpenAPIllms.txt | blockchain+3 | MCP+2 | — | api-key, Search | 4/5 | | |
 Scoped virtual cards external agents can spend within company policy, plus an MCP server over spend data MCPOpenAPI | virtual-cards+4 | MCP+1 | MPP | m2m-oauth, Payments | 4/5 | | |
 Redis-backed working and long-term memory service for agents, with REST and MCP interfaces MCPOpenAPIllms.txt | agent-memory+4 | MCP+2 | — | api-key, Memory | 4/5 | | |
 KYA agent identity plus wallets and pay-per-call settlement so services can charge unknown agents safely MCPOpenAPIllms.txt | agent-identity+4 | MCP+2 | x402 | wallet, Payments | 4/5 | | |