1,405 tagged Backend and APIs, measured the same way as everything else here.
Browse within: mcp-server 201model-context-protocol 139LLM 51api 43ai-tools 31cli 29fintech 23email 19openapi 19agentic-ai 18x402 18claude-desktop 17agentic-commerce 16fastapi 15
MCP server Claude CodeCodexCursor +2
MCP server for Telnyx API — billing, phone numbers, and messaging. Runs locally from the telnyx-mcp Python package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
MCP server for Directus 12 — items, collections, files, flows, users, and schema tools. Runs locally from the @staminna/directus-mcp-server npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
US address verification, parsing, autocomplete, geocoding, and IP geolocation APIs. Runs locally from the @sthan/mcp-server npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Agent-native API client: execute/test REST/GraphQL/WS/SSE with assertions, extraction, collections. Runs locally from the lunge-mcp npm package.
MCP server Claude CodeCodexCursor +2
Provision SaaS services from YAML and inject .env. Supports Clerk, Stripe, Resend and more. Runs locally from the vibe-provision npm package.
MCP server Claude CodeCodexCursor +2
Tunnels and webhooks for AI agents: capture, await, verify, replay, and send signed test events. Runs locally from the otterkit npm package.
MCP server Claude CodeCodexCursor +2
Neural Draft MCP — CMS, blog, bookings, galleries, commerce. 38 tools. Runs locally from the @neuraldraft/mcp npm package. Needs 4 environment variables to run.
vola-trebla/zod-contract-mock-forge-mcp
MCP server Claude CodeCodexCursor +2
MCP server for deterministic mock generation and API contract scaffolding using Zod schemas. Runs locally from the zod-contract-mock-forge-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server "sqlbot-mcp-proxy" as configured in wenRou21/sqlbot-mcp-proxy. Runs in Docker (ghcr.io/wenrou21/sqlbot-mcp-proxy:0.1.0). Needs 4 environment variables to run.
white-hat-lab/agent-toolkit-mcp
MCP server Claude CodeCodexCursor +2
Pay-per-call developer utilities and npm supply-chain security tools for coding agents, over x402. Runs locally from the agent-toolkit-mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Manage ZynoHosting sites and create, discover, embed, and configure ZynoForms through local stdio. Runs locally from the @zyno-io/zynohosting npm package. Needs 4 environment variables to run.
studiomeyer-io/mcp-tenant-pair
MCP server Claude CodeCodexCursor +2
Multi-user tenancy library for MCP servers. Pairs, groups, bi-temporal shared state, DSGVO erasure. Runs locally from the mcp-tenant-pair-demo npm package.
MCP server Claude CodeCodexCursor +2
MCP server for Sendable — let Claude and Cursor send transactional email from your app. Runs locally from the sendableme-mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Hookline MCP — create webhook endpoints, inspect requests, and validate payloads from AI agents. Runs locally from the @hookline/mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Issue, rotate and revoke scoped API-key passes for 25+ providers — the agent never sees a real key. Remote server at mcp.proxykey.org.
MCP server Claude CodeCodexCursor +2
RU INN/OGRN, banks, geo, WHOIS. Agent self-registers via registeragent. 20 free/day. Remote server at mcp.htmlweb.ru.
MCP server Claude CodeCodexCursor +2
Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR. Runs locally from the @postio/mcp npm package. Needs 2 environment variables to run.
DataCore-VietNam/datacore-a2a-mcp
MCP server Claude CodeCodexCursor +2
MCP server cho các skill dữ liệu DataCore: chuẩn hoá địa chỉ Việt Nam và tra cứu doanh nghiệp. Runs locally from the datacore-a2a-mcp Python package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server for Agentline — give your AI agent a phone number, email, SMS, and voice calls. Runs locally from the agentline-mcp Python package. Needs 2 environment variables to run.
AiAgentKarl/business-bridge-mcp-server
MCP server Claude CodeCodexCursor +2
MCP Server with pre-built connectors for Shopify, WordPress, Calendly and other business platforms. Runs locally from the business-bridge-mcp-server Python package.
MCP server Claude CodeCodexCursor +2
Go MCP server for converting URLs to Markdown. Runs locally from the go-mdurl-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
AsyncAPI MCP server — Model Context Protocol server for working with AsyncAPI: parse and validate documents, list templates, and generate code and docs (via @asyncapi/parser and @asyncapi/generator) for any MCP-compatible client. Runs locally from the asyncapi-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server for sending and inspecting messages on Azure Service Bus. Runs locally from the servicebus-mcp Python package.
MCP server Claude CodeCodexCursor +2
Dynamic MCP server that auto-generates tools from any GraphQL API schema. Runs locally from the graphql-mcp-server Python package.