AI agent platforms with a public OpenAPI spec

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

1. #2G

   Gumloop

   Builds and deploys autonomous agents that automate business tasks like sales pipeline management, prospect research, and CRM updates.

   372k
   Active
   From $37/mo
2. #16B

   BrowserlessMCP · sign-in

   Hosts managed headless Chrome browsers that scripts and AI agents drive over Puppeteer or Playwright connections, with stealth, proxies and captcha handling.

   13.9k
   Active
   From $25/mo
3. #21C

   CrewAI

   Builds and runs multi-agent workflows with governance, observability, and continuous optimization for enterprise automation.

   10.8k
   Active
   Free plan
4. #24L

   LiveAvatar by HeyGen

   Streams lifelike 1080p avatars via API with unlimited concurrent sessions at scale.

   8.1k
   Active
   From $19/mo
5. #28C

   Contextual AI

   Builds AI agents that search and reason over technical documentation and enterprise data to automate complex tasks.

   5.1k
   Maintained
   From $3 per use
6. #37R

   Runbear

   Deploys shared AI agents in Slack that automate support, sales, and operations workflows with per-user authentication.

   3.1k
   Active
   From $99/mo
   2023
7. #41F

   Future AGIMCP · sign-in

   Runs simulated conversations against AI agents, scores their outputs for factuality and safety, and traces live calls to flag regressions.

   2.4k
   Active
8. #47C

   CiteHawkMCP · sign-in

   Tracks how ChatGPT, Claude, Perplexity and other AI engines recommend and cite your brand, storing each answer verbatim.

   1.1k
   Active
   From $99/mo
9. #60F

   Famulor AIMCP · sign-in

   Deploys voice AI agents that answer inbound calls, run outbound campaigns, and follow up via WhatsApp, email, and SMS across 60 languages.

   695
   Active
   From ≈ $0.12 per use
   2023
10. #65R

    Robotomail

    Provides real email addresses and mailboxes for AI agents to send and receive messages via API.

    464
    Active
    From $19/mo
11. #74W

    Whizi

    Accesses multiple AI models including GPT, Claude, and Gemini in one interface with unified billing.

    326
    Active
    From $15.99/mo
12. #76O

    Open Agent Skill

    Registry that helps AI agents discover, compare, and install reusable skills with trust signals and install commands.

    305
    Active
    2026
13. #94N

    NudgeHostMCP · sign-in

    Hosts uploaded files and zipped sites at public links, and lets agents publish them through one API call.

    114
    Active
    From $12/mo
14. #103P

    PickrateMCP · open

    Measures which AI agents read a site's pages, which tools they pick, and which agent visits convert into signups or revenue.

    81
    Active
    From $49/mo
15. #109C

    Clarm

    Builds AI agents from approved building blocks to automate recurring operational workflows with audit trails and compliance controls.

    66
    Active
    From $2,000/mo
    2024
16. #116A

    Agents Base Phone Agents

    AI assistant that completes practical tasks via voice, text, or apps using computer control and cloud sandboxes.

    52
    Active
    From $199/mo
17. #131G

    Golem Workers

    Hosts and manages AI agents on dedicated cloud servers with browser automation, file access, and terminal control.

    30
    Active
18. #132B

    BlackLabel TechMCP · open

    Builds AI assistants and workflow automation with human review, plus internal apps, dashboards and APIs for operators.

    29
    Active
19. #165V

    VerifiMCP · open

    Routes an AI agent's question, claim or draft to a human reviewer who accepts, rejects or rewrites it, returning a verdict via callback.

    14
    From ≈ $0.11 per use
20. #173G

    Geoa

    Tracks how a site appears in Google and ChatGPT answers, then writes schema, llms.txt and meta fixes into Shopify or WordPress.

    11
    Active
    From ≈ $45/mo
    2026
21. #178O

    Orkas

    Orchestrates specialized AI agents via chat to research, write, design, and build deliverables for business tasks.

    9
    Active
    From $11.99/mo
22. #179K

    KorelyMCP · sign-in

    Stores agent memories as typed facts with validity dates, resolving contradictions and serving current or past-date truth via API.

    9
    Active
    From ≈ $21/mo
    2025
23. #189N

    NovAI

    Provides access to 105 Chinese AI models through an OpenAI-compatible API endpoint.

    7
    Active
24. #208A

    AI Workstation

    Provides access to multiple AI models through a web interface without requiring signup.

    5
    Active
    Free
25. #223A

    A2AWireMCP · open

    Hosts an AI agent with its own inbox and wallet that takes jobs from other agents and is paid in practice money.

    4
    Active
26. #227A

    Autonomous Intelligence

    Operates AI agents across trading, community management, and token launches on Solana and other blockchains.

    3
    Maintained
    2024
27. #234R

    ResolveMeshMCP · open

    Ranks approved read-only tools for an agent's missing capability and records success or failure reports, without holding provider credentials.

    3
    Active
    From $49/mo
28. #247D

    DeployHermes

    Hosts persistent agent bots that execute tasks in Slack, Telegram, or email and report results.

    2
    Active
    From $99/mo
29. #257N

    naturaliMCP · sign-in

    Hosts versioned AI agents that draw on your documents and tools, reply on WhatsApp or Discord, and log every model turn and tool call.

    2
    Active
    From $49/mo
30. #261P

    PalmyrMCP · open

    Provides AI agents with pre-aged X and TikTok accounts, phone numbers, email, servers and domains, paid per call in USDC via x402.

    2
    From $0.00 per use
31. #263C

    COTALMCP · open

    Connects agents from any provider into one space where they hand off work directly without manual relay.

    1
    Active
32. #264T

    ToolRouter

    Provides AI agents access to 254 hosted tools including image generation, web search, lead finding, and data extraction via a single API connection.

    1
    Active
    From $0.01 per use
    2026
33. #278U

    Unlob search

    Compiles the open web into deduplicated, provenance-tagged evidence for agents with explicit coverage gaps and freshness receipts.

    1
    Active
    From $0.40 per use
34. #311C

    Chloros

    Intercepts and approves AI agent actions before execution, blocking irreversible operations like money transfers and credential leaks.

    1
    From $24.99/mo
35. #315M

    memnodeMCP · sign-in

    Stores and recalls agent memories through a hosted API or local MCP server, with provenance and correction lineage.

    1
    Maintained
    From $9/mo
36. #319S

    SyneroMCP · sign-in

    Sends one question to ChatGPT, Claude, Gemini and Grok, then merges their answers and flags where they agree or differ.

    1
    Active
    From $10/mo
37. #324A

    AgentBITMCP · open

    Pay-per-call HTTP endpoints for agents covering LLM tasks, company lookups, VAT checks, PII scans and onchain reads, settled in USDC via x402.

    1
    Active
    From ≈ $89/mo
38. #333S

    Squidbrake

    Checks each tool call an AI agent makes against YAML rules and holds risky ones for human approval before they run.

    2.7k installs/mo
    Active
    From $499/mo
39. #336M

    Moorcheh

    Deploys a search engine into private cloud for agentic systems with 90% lower infrastructure costs and air-gapped security.

    94 installs/mo
    Active
    From $29/mo
    2024
40. #344O

    OverwingMCP · open

    Checks agent outputs against rules before sending, returning pass/fail verdicts with recommended actions in 150ms.

    1.9k installs/mo
    Active
    From $29/mo
41. #356A

    Agent Pump

    Launches AI agents that autonomously trade meme coins on Solana bonding curves with public reasoning and leaderboard ranking.

    91 installs/mo
    Active
    Free plan
42. #371T

    TANDIU 钽铥MCP · open

    Resells metered access to hosted AI models from several providers, billed per token at listed per-model prices.

    Emerging
    Active
    From ≈ $0.07 per use
43. #389D

    DNSMintMCP · open

    Provisions HTTPS endpoints and DNS records for ephemeral machines and agents via API.

    39 linking domains
    Active
    From $2.99/mo
    2026
44. #411A

    Aicoo

    AI assistant that manages email, calendar, and notes while delegating tasks to teammates and their agents.

    32 linking domains
    Active
    From $29/mo
45. #434B

    BotConduct

    Records the behavior of autonomous agents interacting with your systems from the receiving side, producing cryptographically signed evidence.

    33 linking domains
    Active
    From $99/mo
46. #438B

    BizClawMCP · open

    Indexes businesses as structured profiles that AI agents can discover, query, and contact to execute real-world tasks.

    26 linking domains
    Maintained
47. #470A

    AI-Flow.eu

    Builds and monitors AI agents that answer employee questions from company data with audit trails and quality feedback loops.

    21 linking domains
    Active
    From ≈ $21/mo
48. #477C

    Cruq AI

    Builds and runs AI agents on your own models and data with full governance and audit trails.

    Emerging
    Active
    From $99/mo