AI tools for ai infrastructure & developer apis

Instrument AI applications to inspect agent traces, replay runs, track model costs, and investigate tool behavior.

Best for: AgentOps suits developers debugging an agent application they can instrument.

Build and run agents, teams, and workflows with memory, knowledge, evaluations, and an AgentOS control plane.

Best for: Agno suits developers assembling an agent platform on infrastructure they operate.

AssemblyAI provides recorded, realtime and synchronous speech transcription APIs plus speech-understanding services.

Best for: Transcription APIs and speech understanding

A developer-facing model inference platform with model routing, usage controls, deployment options, and enterprise access configuration.

Best for: BLACKBOX AI's current public offering emphasizes enterprise model inference rather than only the older coding-assistant description.

Image-generation and editing APIs with background tools, upscaling, and model customization for visual products.

Best for: Bria suits developers integrating image operations into an application or content pipeline.

Cartesia provides text-to-speech, speech-to-text and managed voice-agent services.

Best for: Speech APIs and low-latency voice prototypes

Composio connects agents to app tools and manages OAuth connections, sessions and triggers.

Best for: Authenticated app tools for AI agents

Deepgram supplies speech-to-text, text-to-speech and voice-agent APIs.

Best for: Speech recognition APIs and voice infrastructure

AI app and workflow platform with model connections, knowledge pipelines, tools, and cloud or self-hosted deployment.

Best for: Workflow studio and Knowledge pipelines

Open-source toolkit for building and self-hosting voice AI agents with Rust services and ESP32-based hardware.

Best for: Builders experimenting with a self-hosted voice AI device

Exa provides search and content APIs for applications that need relevant web documents.

Best for: Semantic web search in developer applications

fal offers hosted generative-media models and developer APIs.

Best for: Image, video and audio generation APIs

Firecrawl offers APIs for scraping, crawling, searching and extracting web content.

Best for: Turning permitted web pages into LLM-ready data

Build AI agents and retrieval workflows visually, with tool connections, human review steps, traces, and APIs.

Best for: Flowise suits developers assembling model, retrieval and tool components without writing every orchestration step from scratch.

Image and video model family from Black Forest Labs, with pay-as-you-go API access, editing tools and open-weight licensing options.

Best for: FLUX suits developers and studios that want image models they can call by API or run themselves under a license.

A transcription API for uploaded or live audio, with multilingual processing, speaker labels, and audio intelligence.

Best for: Gladia suits developers adding transcription to an application rather than users seeking a standalone editor.

Prototype Gemini prompts and structured outputs, then inspect sample code for a developer integration.

Best for: Prototype Gemini prompts and structured outputs, then inspect sample code for a developer integration.

Google DeepMind video model that generates clips with native audio, available in the Gemini app, Flow, the Gemini API and AI Studio.

Best for: Google Veo suits creators and developers who want short AI video with matching sound effects, ambience and dialogue.