Best Unified APIs for Model Context Protocol (MCP)

Merge enables B2B companies to add hundreds of integrations to their products, making it easy to access and sync their customers’ data. Instead of building and maintaining each integration in-house, your developers can save time by integrating once to Merge’s Unified API to add an entire category of integrations to your product in just weeks. Merge offers over 220 integrations in accounting, HRIS, ATS, CRM, file storage, and ticketing. Once you build into Merge’s API, you’ll automatically get access to every integration we add. Merge’s platform makes secure data access easy by normalizing data and handling authentication, pagination, and rate limiting so you don’t have to deal with the nuances of each integration. Merge supports the entire integration lifecycle after the initial build. Merge handles integration maintenance — catching and resolving any issues so you don’t have to worry about integrations breaking. With a suite of integration observability features in our Dashboard, your customer success team has full visibility and control over your product integrations. Thousands of companies like Handshake, Ramp, BambooHR, Remote, and Drata use Merge to power their integrations at scale, enabling them to unblock sales, reduce customer churn, accelerate time to market for new products, and save costs related to engineering resources spent on building and maintaining integrations. Merge adheres to industry-standard compliance frameworks including SOC 2 Type II and ISO 27001, and complies with privacy regulations like HIPAA, GDPR and CCPA.

Outstand is a developer-centric unified social media API that provides access to various platforms via a single, standardized interface, enabling the creation of social media scheduling tools, analytics applications, and AI-enhanced systems without the hassle of managing distinct integrations for each platform. It encompasses more than ten prominent networks, such as X (formerly Twitter), LinkedIn, Instagram, TikTok, YouTube, and Facebook, bringing them together under one coherent data model that removes the complexity of dealing with different APIs, thereby streamlining multi-platform development efforts. This API is tailored to expedite the development process, allowing teams to launch products within hours rather than months, and boasting swift performance with minimal latency and robust availability through a scalable architecture. Additionally, Outstand acts as a crucial foundation for AI-driven workflows, making it possible for developers to seamlessly incorporate social media functionalities into intelligent agents and automated systems capable of content posting, ultimately enhancing the versatility and efficiency of application development. With its comprehensive capabilities, Outstand empowers developers to innovate more rapidly and effectively in the ever-evolving digital landscape.

Social Fanout offers a single REST API alongside a local MCP gateway, enabling the distribution of content to various customer-approved social outlets. Developers can simultaneously publish content to several configured destinations and obtain results specific to each target. This system is tailored for applications and workflows involving AI agents, with its functionality contingent upon the connection status and approval of each destination. Additionally, it streamlines the content distribution process, enhancing efficiency for developers.

SocialRouter serves as a comprehensive social data API and MCP server tailored for AI developers and agents. It offers a single, cohesive interface that enables users to retrieve data from a variety of platforms, including LinkedIn, Instagram, X, Reddit, Facebook, TikTok, YouTube, Pinterest, Bluesky, Snapchat, Google Maps, and Apollo—totaling 61 services across 12 different networks. Users can discover leads, monitor competitors, detect buying signals, and gather reviews and transcripts effortlessly. The system features multi-provider routing with automatic fallback, ensuring that if one provider encounters an issue or reaches its rate limit, another provider seamlessly takes over the request without interruption. There is no subscription or minimum requirement, allowing for a pay-per-record model instead. Users can connect through MCP for Claude Code, Codex, Gemini CLI, or utilize the REST API from any programming language. Additionally, a TypeScript SDK is readily available for those who prefer it. This flexibility makes SocialRouter an invaluable tool for data-driven decision-making and marketing strategies.