Tier list: tools automation agents can use

Updated 2026-11-08 · 49 tools · rubric v1

Automation agents run on a server with no person watching. Workflow tools often build their actions from an OpenAPI spec. We rank each tool by how much of that access it publishes. Public API, key auth and OpenAPI count most. MCP is important. A CLI does not count, because servers rarely install one.

S90+

AAudioPod AICCustomDomainIi18n-agentAAiVikingsBBenchGeckoCChronaryCCloudBrowserEeach::labsEEmpirioLabs AIEEvoLinkFFrameThrowerIIntoDNS.aiKKaiva BridgeKKeenableLLithtrixMMapMapMMarrow AIMMindsRResendSStripe

A75–89

CCloudflareGGitHubNNeon

B60–74

FFourALLinearNNotionSSentrySSpotDBSSupabase

C40–59

MMarchwardAAgentDMBByteAsk Embedded DocsDDeepLedgerEElicitlyHHowseenKKinMMaguyvaRRius

Dunder 40

AAnki MCP ServerAAutenAAuthoryzeCCodeNibDdbmcpGGiljo HQKKernora Agent-SecAAtlaso MemoryBBumbleBoxJJoxoKKubit

What counts for automation agents

Fit = points the tool has ÷ points possible × 100. Tiers: S 90+, A 75+, B 60+, C 40+, D under 40.

Every tool, tier by tier

S tier (20)

• AudioPod AI · fit 100
  Transcription and audio stem separation
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth, Sandbox. Nothing missing. Details
• CustomDomain · fit 100
  Connect custom domains for your users
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth, Sandbox. Nothing missing. Details
• i18n-agent · fit 100
  Translation into 48 languages
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth, Sandbox. Nothing missing. Details
• AiVikings · fit 92
  Domain search and registration for agents
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• BenchGecko · fit 92
  Model pricing and benchmark data
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Chronary · fit 92
  Calendar API for agents
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• CloudBrowser · fit 92
  Cloud Chrome you can drive
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• each::labs · fit 92
  Image, video and voice generation
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• EmpirioLabs AI · fit 92
  Model calls and GPUs
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• EvoLink · fit 92
  One API for image, video and voice models
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• FrameThrower · fit 92
  Search film scenes
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• IntoDNS.ai · fit 92
  DNS and email security checks
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Kaiva Bridge · fit 92
  Turn API docs into an MCP server
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Keenable · fit 92
  Web search and page reading
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Lithtrix · fit 92
  Identity and memory for agents
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• MapMap · fit 92
  Maps and routing
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Marrow AI · fit 92
  Approvals and audit logs for agent actions
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Minds · fit 92
  Market research with simulated customers
  Has: MCP server, Public API, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Resend · fit 92
  Email API for developers: send mail and check delivery over MCP
  Has: MCP server, Public API, CLI, OpenAPI spec, llms.txt, Key auth. Missing: Sandbox. Details
• Stripe · fit 92
  Payments, subscriptions and refunds through the API and official MCP server, with a test mode to practice safely
  Has: MCP server, Public API, CLI, OpenAPI spec, Key auth, Sandbox. Missing: llms.txt. Details

A tier (3)

• Cloudflare · fit 85
  Infrastructure from Workers to DNS, run through wrangler CLI and the MCP server
  Has: MCP server, Public API, CLI, OpenAPI spec, Key auth. Missing: llms.txt, Sandbox. Details
• GitHub · fit 85
  Issues, PRs and reviews handled directly through the official MCP server and gh CLI
  Has: MCP server, Public API, CLI, OpenAPI spec, Key auth. Missing: llms.txt, Sandbox. Details
• Neon · fit 85
  Serverless Postgres with branches to test migrations first, MCP supported
  Has: MCP server, Public API, CLI, OpenAPI spec, Key auth. Missing: llms.txt, Sandbox. Details

B tier (6)

• FourA · fit 69
  Web access and proxies
  Has: MCP server, Public API, llms.txt, Key auth. Missing: OpenAPI spec, Sandbox. Details
• Linear · fit 62
  Project tracking where the official MCP server creates issues and moves their status
  Has: MCP server, Public API, Key auth. Missing: OpenAPI spec, llms.txt, Sandbox. Details
• Notion · fit 62
  Team wiki whose pages and databases can be read and written over MCP
  Has: MCP server, Public API, Key auth. Missing: OpenAPI spec, llms.txt, Sandbox. Details
• Sentry · fit 62
  Error issues read over MCP so an agent can trace the cause and ship the fix
  Has: MCP server, Public API, CLI, Key auth. Missing: OpenAPI spec, llms.txt, Sandbox. Details
• SpotDB · fit 62
  Disposable data sandboxes
  Has: MCP server, OpenAPI spec, Key auth. Missing: Public API, llms.txt, Sandbox. Details
• Supabase · fit 62
  Postgres, auth and storage set up through the MCP server and CLI
  Has: MCP server, Public API, CLI, Key auth. Missing: OpenAPI spec, llms.txt, Sandbox. Details

C tier (9)

• Marchward · fit 54
  Permissions and spend caps for agents
  Has: MCP server, llms.txt, Key auth, Sandbox. Missing: Public API, OpenAPI spec. Details
• AgentDM · fit 46
  Messaging between AI agents
  Has: MCP server, CLI, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• ByteAsk Embedded Docs · fit 46
  Search embedded-systems docs
  Has: MCP server, CLI, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• DeepLedger · fit 46
  Bookkeeping entries
  Has: MCP server, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• Elicitly · fit 46
  Human confirmation dialogs
  Has: MCP server, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• Howseen · fit 46
  Brand visibility in AI search
  Has: MCP server, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• Kin · fit 46
  Per-account permissions for agents
  Has: MCP server, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• Maguyva · fit 46
  Code search
  Has: MCP server, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details
• Rius · fit 46
  Observe agent run traces
  Has: MCP server, llms.txt, Key auth. Missing: Public API, OpenAPI spec, Sandbox. Details

D tier (11)

• Anki MCP Server · fit 38
  Manage Anki flashcards
  Has: MCP server, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• Auten · fit 38
  Control computers and phones
  Has: MCP server, CLI, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• Authoryze · fit 38
  Spend limits and single-use cards for agents
  Has: MCP server, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• CodeNib · fit 38
  Navigate code structure
  Has: MCP server, CLI, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• dbmcp · fit 38
  Connect to databases
  Has: MCP server, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• Giljo HQ · fit 38
  Context management for coding agents
  Has: MCP server, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• Kernora Agent-Sec · fit 38
  Security rules for coding agents
  Has: MCP server, Key auth. Missing: Public API, OpenAPI spec, llms.txt, Sandbox. Details
• Atlaso Memory · fit 23
  Shared memory across tools
  Has: MCP server, llms.txt. Missing: Public API, OpenAPI spec, Key auth, Sandbox. Details
• BumbleBox · fit 23
  Inbox search and reply drafts
  Has: MCP server, llms.txt. Missing: Public API, OpenAPI spec, Key auth, Sandbox. Details
• Joxo · fit 23
  Team board for coding agents
  Has: MCP server, CLI, llms.txt. Missing: Public API, OpenAPI spec, Key auth, Sandbox. Details
• Kubit · fit 23
  Query your data warehouse
  Has: MCP server, llms.txt. Missing: Public API, OpenAPI spec, Key auth, Sandbox. Details

How we check

• We read each tool's public pages, docs and repos for the seven signals. We do not run the MCP server or install the CLI.
• A signal counts only when we find it published. A “present” signal says the entry point exists. It does not grade quality.
• The points are our own rubric (v1). They are not a certification, and we have not yet checked them against real agent success rates.

Other tier lists: Coding agents · Data agents · Payment agents
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