API
Discover the best AI tools in API
725 products found

Naiza by Limaz is an API-first fraud detection and AML screening platform hosted in Saudi Arabia. It returns real-time allow, review or block decisions for logins, payments, registrations and withdrawals, and screens names against sanctions, PEP and watchlist data.
Free tier

Meet Eleven v4 and Eleven v4 Turbo by ElevenLabs, their most expressive models yet, with Turbo built for real-time use. Available in apps, API, and agents.
Free tier

The Modern Data Stack 🐰 Monospace is the governed API layer for every app, person, and agent. Directus is an instant REST+GraphQL API and intuitive no-code data collaboration app for any SQL database.
Free tier

Invofox is a document parsing API for software teams that turns complex, real-world documents into accurate, structured data. Built for high-variance workflows, Invofox goes beyond OCR with classification, validation, and extraction that scale reliably in production.
Free tier

FastRouter is a unified AI gateway and control plane for developers and enterprise teams building with LLMs. It routes every request to the right model across 200+ LLMs through one OpenAI-compatible API, optimizing for cost, latency, quality, and reliability. With intelligent routing, failover, observability, and governance, teams can scale AI apps without vendor lock-in or code changes.
Free tier

API
Build forms visually in Strapi v5, fetch a sanitized schema over REST, and render every field with your own React, Vue, or custom frontend. FormFlow handles validation, submissions, spam controls, notifications, exports, analytics, and operational workflows.
Free tier

API
TrackAPI is a tool for developers to easily monitor API specifications, with a simple interface and classified changes.
Free tier

API
Start with a work email or public profile URL and get structured person and company data through an API. SuperData helps developers enrich leads, complete CRM records, and give AI agents useful context without stitching together multiple data sources. Explore the docs, test the API, and build with usage-based credits.
Free tier

API
iFixAi is an independent auditor helping companies assess whether they can trust their AI agents. Unlike relying solely on evals and observability tools, its multifaceted audit includes 250 inspections across 69 categories of AI misalignment, combining AI red teaming, operational assurance, and philosophical, ethical, and sociological perspectives. It identifies failures under testing, explains their business implications, and provides evidence engineers can use to investigate and fix them.
Free tier

API
One API for realtime marketplace data collection for your ai agents. Give your ai agents superpowers to collect all the relevant data it needs from any marketplace to act on.
Free tier

API
UsageGate tells your app if a user can still use a feature. Example: Hobby = 20 AI image cleanups. Studio = 400. Before you run the cleanup, you ask UsageGate. Yes → run it. No → block it. You do not build counters, databases, or “did they pay?” logic. You write the plans. UsageGate enforces them. For Next.js. Free to start. usagegate.io
Free tier

API
Forward emails from Gmail, Outlook, or any mail provider to your personal Tempy address. We'll deliver them to your API.
Free tier

API
Capslane gives developers a stable API for YouTube transcripts. It returns native captions when available and automatically generates a timestamped transcript when they are missing. Get plain text or structured segments, choose a language, manage API keys, inspect usage, and connect through JavaScript, Python, MCP, or n8n. Start with 50 free requests each month.
Free tier

One OpenAI-compatible API for hundreds of models on attested infrastructure, end to end encryption, with Confidential routes, ZDR routes, provider failover, BYOK, and no prompt or output logs.
Free tier

API
MCP Platform turns existing REST APIs into production-ready MCP servers from an OpenAPI specification. Generate tools automatically, classify operations by risk, add authentication and governance, publish a remote MCP endpoint, and connect it to clients like ChatGPT or Claude — without building MCP infrastructure from scratch.
Free tier

API
Private company data with 4x the depth and 2x the coverage of PitchBook, plus 100+ event signals and news across companies, industries, and topics. Source and diligence deals or make outreach lists and trigger outbound. Built for financial services and GTM teams, pay-as-you-go.
Free tier

Stop overpaying for LLM inference and juggling multiple API integrations. Router.com provides a single API endpoint that routes every request to the lowest-cost model that meets your performance threshold—backed by Ramp's financial visibility. Start routing smarter today at router.com!
Free tier

API
Mindcase is the infrastructure layer for extracting web data in a structured, usable format. Built for developers and AI teams that need reliable web data without managing scraping infrastructure. Access APIs across popular sources, or get anything across the web built as a custom API for your specific use case.
Free tier

API
Build and deploy conversational iMessage agents for customer service, inbound lead capture, and more. Simply configure the system prompt and tone, and you can create your own conversational iMessage agent for inbound handling, outbound follow-up, or whatever workflow you want to test. You can also integrate with CRMs like HubSpot, Close, or GoHighLevel to write back conversation histories.
Free tier

API
The API-client built for developers. Open-source. Local Native git. Bruno stores collections on your filesystem which allows you to natively interact with git for collaboration and versioning.
Free tier