2,940 tools · sourced & dated
Free planCode
Hook Relay provides webhooks-as-a-service with reliable delivery, retries, payload logging, SSRF protections, and debugging for outbound webhook integrations. It targets teams that want Stripe-quality webhook infrastructure without building a custom backend.
Free trialResearch
HostedScan is an online vulnerability scanning platform that orchestrates external and internal scans across engines such as OpenVAS, OWASP ZAP, Nuclei, and Nmap. It targets MSPs and IT teams with scheduling, reporting, integrations, and multi-target plans.
Free planCode
Hugging Face is the central collaboration platform and repository for machine learning, hosting over 1 million open-source models, datasets, and ML demonstration applications (Spaces). It provides Inference Endpoints, Spaces hosting, AutoTrain, and the Transformers library ecosystem.
Free planWriting
Hygraph is a GraphQL-native headless CMS for structuring content and delivering it across channels. Marketers and developers use it to model content, scale with AI-assisted workflows, and ship faster to web and mobile experiences.
Free planFeature flags
Hypertune provides type-safe, Git-based feature flags, experimentation, analytics, and SDKs for frontend and backend teams. Public pricing is seat-based with included CDN and analytics event allotments, though the vendor announced the service will shut down on 10 August 2026.
Free planAssistant
Hystruct is an AI-assisted web scraping platform that turns URLs into structured datasets using customizable schemas. Users choose a data structure, connect outputs to downstream tools, and run concurrent scrape jobs with a documented API and free web scraper demo on the marketing site.
Free planCode
IcePanel is a collaborative C4-style software architecture modeling tool. Engineering and product teams map systems, maintain interactive diagrams, plan designs, and align on technical decisions with integrations and a documented REST API.
Free planImages
IMG Processing provides a hosted image processing API for developers who need resizing, analysis, and related transformations without building infrastructure. The marketing site pairs documentation with tiered monthly accounts for hobby, project, and high-volume workloads.
Free planCode
Infisical is a security platform for developers and AI agents covering secrets management, certificate management, and privileged access. Cloud plans scale by identities with integrations, rotation, SSO, and enterprise controls for larger organizations.
Free trialCode
IntegraBot automates WhatsApp customer service with Meta-approved AI agents. Businesses configure flows and skills so the agent handles routine conversations on official WhatsApp and escalates to humans when needed, with workspace limits tied to each subscription tier.
Free planGeolocation API
IP2Location.io provides IP geolocation, proxy detection, and related APIs including bulk queries, WHOIS, and hosted domain lookups. Subscription plans scale monthly query allotments for geolocation, WHOIS, and hosted domain endpoints.
Free planResearch
ipbase.com provides an IP geolocation API that returns country, city, timezone, ISP, ASN, and security flags such as VPN, proxy, and Tor indicators in JSON. The site also promotes ASN, reverse IP, and VPN detection APIs plus batch lookups for production apps.
Free planResearch
IPinfo delivers IP data intelligence for developers and enterprises, packaging geolocation, ASN, privacy, carrier, and company datasets into tiered API products. The homepage demonstrates rich JSON responses and positions Lite, Core, Max, and Enterprise offerings for different accuracy needs.
Free trialCode
JsonFabrica is an API-first platform for generating realistic synthetic JSON test data from reusable templates with placeholder functions. Teams describe record shapes once, call authenticated generate endpoints, and reproduce outputs using stored seeds without touching production data.
Free planCode
Keploy builds digital twins of production API traffic to generate tests, mocks, and regression checks for CI pipelines without application code changes. The open-source platform records requests with eBPF, replays dependencies, and offers AI-expanded API test generation.
Free trialCode
Keragon is a HIPAA-compliant healthcare automation platform with no-code workflows, AI agents, and 400+ integrations. Clinics and digital health companies automate intake, scheduling, billing, and patient communication while keeping data on Keragon’s compliant infrastructure.
Free planCode
KERNEL provides cloud browser infrastructure for AI agents and web automations, spinning up sandboxed Chromium sessions with stealth, managed auth, GPU acceleration, live view, and telemetry. Developers connect via CDP, WebDriver BiDi, Playwright, OpenAPI, MCP, or official SDKs in TypeScript, Python, and Go.
Free planCode
lab2.dev is an AI web app builder that turns plain-language prompts into hosted Streamlit-style applications with generative AI features wired in. Users iterate through chat, remix community gallery apps, and share live URLs without local setup or deploy pipelines.
Free planCode
Lamatic AI is agentic middleware for teams to design, deploy, and optimize generative AI applications. Its visual builder, serverless deploy layer, and optimization tooling connect to hundreds of models and integrations for production agent workflows.
Free planCode
Langfuse is an open-source LLM engineering platform for tracing, evaluating, and improving AI agents with collaborative debugging and metrics. Langfuse Cloud offers hosted Hobby, Core, and Pro tiers metered in observability units.
Free planCode
LangSmith is an enterprise LLM observability, evaluation, and monitoring platform built by LangChain.
Free planCode
LaunchLemonade lets teams describe work, pick models, attach knowledge, and publish custom AI assistants in minutes. It supports chat, voice, scheduled runs, integrations, a public agent store, and UK-hosted privacy-focused infrastructure.
Free planCode
LetsAsk.AI lets teams train ChatGPT-style chatbots on websites, files, or documentation and embed them without coding. The platform emphasizes quick setup, multilingual answers, GDPR-aligned privacy, and Zapier or Discord integrations.
Free planCode
Letta is an AI research lab and product company building stateful agents whose memory and capabilities evolve over time, originating from MemGPT research. It ships Letta Agent software, a CLI, and cloud plans for individuals, teams, and API developers.
Showing 168 of 2,940 tools
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