Best API products of the month May 2026

Voyant Networks

Ads Infrastructure, AI APIs & Traffic Intelligence

Cross-platform ads SDKs, AI moderation APIs, fraud prevention, IP intelligence, realtime analytics, and monetization infrastructure for developers and businesses.

Social Fetch

Pull real-time data from any social platform via API.

Unlock comprehensive public social data with a single, powerful API from Social Fetch. Effortlessly scrape profiles, posts, comments, videos, and transcripts from major platforms including TikTok, Instagram, YouTube, X (formerly Twitter), LinkedIn, and Facebook. Our flexible pay-as-you-go credit system offers unparalleled scalability without restrictive rate limits. Get started immediately with 100 free credits, no credit card required, making it easy to access vast social intelligence for analytics, research, and application development.

Plurai

Vibe-train evals and guardrails tailored to your use case

Plurai revolutionizes AI agent reliability by providing intuitive "vibe training" for robust guardrails and evaluation. Simply define your agent's desired and undesired behaviors, and Plurai swiftly generates and validates training data, deploying a custom model within minutes. This innovative approach eliminates the need for labeled data, complex annotation pipelines, or tedious prompt engineering. Leveraging efficient small language models, Plurai ensures sub-100ms latency, an 8x cost reduction compared to GPT-based evaluation, and a remarkable over 43% decrease in agent failures. It offers continuous, real-time monitoring, not just sampled checks, all built upon cutting-edge published research (BARRED).

The Gemini API now features two specialized research agents designed to optimize your data analysis and synthesis processes. Deep Research is tailored for low-latency, interactive workflows, providing rapid insights for immediate application. For more comprehensive and in-depth analysis, Deep Research Max offers exhaustive asynchronous synthesis capabilities. Both agents are fully compatible with Multi-Canvas Protocol (MCP) data sources and include native chart generation, making them indispensable tools for developers and AI engineers seeking advanced research functionalities.

Marx Finance

AI agents debate the markets

Marx Finance is a groundbreaking agent-first platform where autonomous AI agents converge to analyze financial markets. These intelligent agents actively discuss breaking news, share crucial market signals, and engage in sophisticated debates over potential investment positions. It provides a unique social and analytical layer, enabling AI agents to thoroughly analyze recent global events and their financial implications, offering unparalleled market insights.

Gemini 3.1 Flash-Lite

Lightweight Gemini model for high-volume AI pipelines

Gemini 3.1 Flash-Lite is a highly optimized, cutting-edge AI model engineered for robust performance in critical enterprise applications. This powerful solution efficiently handles essential AI tasks such as advanced tool calling, precise classification, accurate translation, and comprehensive multimodal processing, all accessible via a streamlined API. Operating within Google's reliable Gemini Enterprise Agent Platform, Gemini 3.1 Flash-Lite is specifically designed for AI engineers who are developing and deploying high-volume, latency-sensitive agent pipelines in demanding production environments, ensuring both speed and reliability for complex AI workflows.

pixserp

Your LLM on the live web. One endpoint, ten answer shapes.

Pixserp stands as the premier AI-native search engine, specifically engineered for developers and builders. It offers a singular, powerful API endpoint that delivers comprehensive answers across ten distinct live-web data shapes, including traditional search results, news, images, places, shopping, flights, hotels, YouTube content, transcripts, and information from any given URL. All results are meticulously cited by default, ensuring transparency and reliability. Pixserp is designed as a seamless drop-in replacement or enhancement for the OpenAI SDK, simplifying integration into your projects. Benefit from straightforward, predictable pricing at a flat rate of $1.50 per 1,000 requests, making advanced web data accessible and affordable.

Agentspan

Open-source runtime for durable AI agents

Agentspan is a robust open-source server and SDK designed to enable the execution of AI agents as durable, resilient workflows. Developers can programmatically define agents, execute them reliably server-side, and gain full visibility by inspecting each run and its execution state directly within a user-friendly interface. Agentspan significantly enhances your existing agent frameworks and Large Language Models by integrating critical features such as automatic crash recovery, essential human-in-the-loop approval mechanisms, robust guardrails, comprehensive tool history, and powerful observability tools. With its MIT license, Agentspan provides a flexible and dependable foundation for building and managing sophisticated AI applications.

General Compute

AI models that run on an inference cloud optimized for speed

While GPUs are primarily optimized for AI training, General Compute offers a specialized inference cloud powered by ASICs, which are purpose-built alternatives to traditional Nvidia silicon, engineered exclusively for inference tasks. This innovative infrastructure delivers significantly faster responses, up to 5 times quicker, and provides higher per-user throughput, crucial for latency-sensitive applications such as advanced coding assistants and real-time voice agents. With our OpenAI-compatible API, integrating General Compute into your existing setup is effortless. Simply swap your base URL, and you can continue with your current workflows, running real-time AI on infrastructure that is truly built for the job, ensuring optimal performance and efficiency.

tweet.md

X posts as clean Markdown

tweet.md provides a valuable utility for developers and researchers, expertly converting X posts into pristine, highly readable Markdown format. Say goodbye to the frustrations of scraping complex HTML or dealing with disorganized embeds when feeding content to an AI assistant. Users can effortlessly transform a post by simply swapping 'x.com' with 'tweet.md' in the URL, or by utilizing its robust conversion API. The resulting output is meticulously optimized for large language models, AI agents, extensive research workflows, and efficient note-taking. Each conversion thoughtfully includes crucial details like proper attribution, precise timestamps, canonical links, integrated media, quoted content, and comprehensive thread support, ensuring data integrity and usability.