AI developer tools with a public OpenAPI spec

Figure and bar: visits/mo, estimate · year: online since

1. #3C

   CloudflareMCP · open

   Proxies website traffic through a global network for CDN caching, DNS, DDoS protection and a web firewall, plus Workers serverless code and zero-trust access.

   4.9M
   Active
   From $20/mo
   2009
2. #11H

   HostingerMCP · sign-in

   Hosts websites on shared, cloud and VPS plans, registers domains, provides business email and includes a drag-and-drop website builder and WordPress hosting.

   484k
   Active
   From $2.99/mo
   2004
3. #28A

   AlchemyMCP · sign-in

   Provides node RPC endpoints, indexed blockchain data APIs, and wallet and transaction APIs across about 100 chains.

   174k
   Active
   From $0.53 per use
   2017
4. #29W

   Warp

   Terminal app with built-in coding agents that run commands, edit code and review changes, plus cloud agents triggered from team workflows.

   162k
   Active
   From $20/mo
5. #34A

   Augment Code

   Orchestrates software development agents across the full lifecycle from tickets to deployment and monitoring.

   144k
   Active
   From $20/mo
6. #37C

   CircleCIMCP · sign-in

   Runs CI/CD pipelines defined in YAML, building, testing and deploying code on every commit across cloud or self-hosted runners.

   136k
   Active
   From $15/mo
   2011
7. #42O

   OpenCode

   Open source coding agent that generates code in terminal, IDE, or desktop app with support for multiple LLM providers.

   108k
   Active
   Open source
   2025
8. #61R

   RailwayMCP · sign-in

   Deploys repositories and Dockerfiles as cloud services, auto-detecting build settings, with per-PR preview environments, scaling, and built-in logs and metrics.

   60.5k
   Active
   From $5/mo
   2020
9. #82W

   WorkOSMCP · sign-in

   Provides SSO, user management, directory sync and audit log APIs that let developers add enterprise sign-in features to their application.

   30.9k
   Active
   From $99/mo
   2019
10. #83D

    Devin

    Executes software engineering tasks including code migrations, bug fixes, testing, and documentation generation across multiple repositories.

    30.6k
    Active
    From $20/mo
11. #102S

    Shortcut

    Tracks software work on kanban boards with stories, sprints, epics, roadmaps and GitHub integration.

    22.1k
    Active
    From $8.50/user/mo
    2014
12. #113M

    Mem0MCP · sign-in

    Stores and retrieves persistent memories of users and sessions for AI agents and applications through an API and open-source SDK.

    16.8k
    Active
    From $19/mo
    2023
13. #115W

    World MonitorMCP · sign-in

    Streams geopolitical, shipping, market and infrastructure signals onto a live map with correlation alerts.

    15.8k
    Active
    From $39.99/mo
    2026
14. #116N

    NinjaChatMCP · sign-in

    Routes one chat window and an OpenAI-compatible API to many hosted models such as GPT, Claude and Gemini, plus image and video generation.

    15.8k
    Active
    From $11/mo
15. #121B

    Browser Use

    Provides remote browsers and an open-source library that let AI agents complete web tasks like booking, form filling and data extraction.

    14k
    Active
    From $5 per use
    2024
16. #1282

    21stMCP · sign-in

    Browse and copy 12,000 React components, templates, and themes as AI-ready prompts into your project.

    13.1k
    From $6/mo
17. #130A

    ApideckMCP · open

    Single API that reads and writes bills, invoices, ledgers and bank feeds across many accounting and ERP systems.

    11.8k
    Active
    From $599/mo
    2020
18. #131T

    TwitterapiMCP · open

    Returns public X posts, profiles, follower graphs and trends over a REST API, billed per result returned.

    11.7k
    Active
    From $0.00 per use
    2024
19. #132O

    openstatusMCP · sign-in

    Hosts status pages and monitors endpoint uptime from 28 regions, with incident reporting and audit trails.

    11.4k
    Active
    From $30/mo
    2023
20. #134C

    Cosmic

    Headless CMS that stores structured content in custom models and serves it over REST and GraphQL APIs to websites and apps.

    11k
    Active
    From $99/mo
    2016
21. #140C

    Caveman

    Reduces AI agent token costs through model routing, auto-caching, prompt compression, and waste detection.

    9.6k
    Active
    Contact sales
22. #195L

    Liveblocks

    Provides realtime sync and conflict resolution for collaborative applications with people and AI agents.

    4.1k
    Active
    From $25/mo
    2021
23. #200C

    Checkly

    Monitors application uptime and user flows with synthetic tests deployed globally and managed as code.

    3.8k
    Active
    From $24/mo
    2000
24. #202T

    TwelveLabs

    Indexes video at scale to enable natural language search, content segmentation, and compliance analysis across video libraries.

    3.8k
    Active
    From $2.50 per use
    2021
25. #208S

    SurrealDB

    Stores documents, graphs, relational tables and vectors in one database engine queried with SurrealQL, running embedded, self-hosted or in the cloud.

    3.5k
    Active
    From $0.02 per use
    2015
26. #211C

    CapgoMCP · sign-in

    Pushes JavaScript and asset updates to Capacitor and Ionic apps and builds signed iOS and Android binaries in the cloud.

    3.4k
    Active
    From $14/mo
    2021
27. #223B

    Binadox

    Monitors cloud and SaaS spending, detects cost anomalies, and optimizes resource allocation across multiple providers.

    3k
    Active
    From $99/mo
    2015
28. #231M

    ModelsLabMCP · open

    Provides APIs for generative AI models including image, video, audio, and language model capabilities.

    2.6k
    Active
    From $21/mo
    2022
29. #267N

    Novu

    Sends notifications and enables two-way agent conversations across email, SMS, push, Slack, WhatsApp and other channels.

    1.8k
    Active
    From $30/mo
30. #272M

    MapAtlas

    Provides mapping APIs for geocoding, routing, and location search with AI-readable map tiles.

    1.6k
    Active
    From ≈ $2.58 per use
31. #276F

    Factory

    Deploys autonomous agents to plan, build, review and ship software changes across codebases.

    1.6k
    Active
    From $20/mo
32. #283O

    Opper AI

    Routes requests across 700 AI models through one EU-hosted API with automatic failover and GDPR compliance.

    1.5k
    Active
    Free plan
    2023
33. #286S

    Sim

    Builds, deploys, and governs AI agents with centralized control over access, spending, and data.

    1.4k
    Active
    From $25/user/mo
    2025
34. #287T

    TestDino

    Records Playwright CI test runs, detects flaky tests, and provides centralized debugging and analytics.

    1.4k
    Active
    From $39/mo
    2025
35. #312D

    Deck

    Deploys agents that authenticate as users and execute workflows across software systems without APIs.

    1.1k
    Active
    From $25/mo
    2024
36. #316O

    OffendersearchMCP · open

    An API that queries about 1.5 million sex offender registry records from all 58 US registries in a single call.

    1.1k
    Active
    From $0.15 per use
37. #320W

    We.Inc (WeInc) AI Website Builder for Agencies & Businesses

    Generates live websites from natural language descriptions, with code export and white-label reselling options.

    1k
    Active
    From $20/mo
38. #334C

    Conduit

    Deploys AI agents to answer guest messages and calls, handle requests, and coordinate hospitality operations across channels.

    811
    Active
    From $18/mo
39. #341P

    PulseGateMCP · open

    Tracks newly indexed software projects worldwide, listing what exists, what is emerging and how each market is moving.

    775
    Active
40. #348O

    OneMCP · sign-in

    Holds one connection per app in your account and gives each agent a scoped, revocable grant to act through it.

    736
    Active
    From $29/mo
    2024
41. #356C

    CodequiryMCP · sign-in

    Compares submitted source code against web, GitHub, past submissions and AI-model output to flag copied lines and likely AI-written files.

    670
    Active
    From $28/mo
    2017
42. #374T

    TinyFnMCP · open

    Hosts 500 deterministic utility functions over MCP and REST so AI agents compute math, conversions and validations exactly rather than estimating them.

    561
    Active
    From $9/mo
43. #389J

    Jobfinder AIMCP · sign-in

    An agent that ranks job openings, submits applications through ATS or company forms, and emails hiring managers from your inbox.

    513
    Active
44. #402F

    fortrabbitMCP · sign-in

    Runs PHP websites and apps in isolated environments, deploying code from a connected GitHub repo on git push.

    443
    Active
    From ≈ $5.06/mo
    2013
45. #404L

    LayerCallMCP · open

    API that scores signups, IPs, emails, phones, domains and devices for fraud risk in a single call.

    436
    Active
    From $49/mo
46. #421J

    JigsawStack v3

    Provides specialized API models for text extraction, object detection, web scraping, search, and speech-to-text with structured output.

    379
    Active
    From $27/mo
47. #435P

    Prompt2VoiceMCP · sign-in

    Builds and deploys voice AI assistants from natural language descriptions with drag-and-drop configuration.

    345
    Active
    From $15/mo
48. #436C

    CloudpepperMCP · sign-in

    Hosts Odoo instances on any cloud with automated deploys, backups, staging clones and 24/7 health monitoring.

    333
    From ≈ $33/mo