Browse all tools

Self-hosted (38)

Source: anyCan do: anythingAuth: anyScore: anySort: Best overall

MongoDB

Covers both data and infrastructure, which is unusual — and means an agent can spin up billable clusters. Scope the API key.

FreeAdminHeadless

Supabase

Among the most capable database servers — which is the risk: unrestricted, an agent can alter schema. Read-only flag first, loosen deliberately.

FreeAdminHeadless

Netlify

Write-capable where Vercel is not — an agent can actually ship a site and wire up functions end to end.

FreeAdminHeadless

Grafana

Free, open-source and write-capable on dashboards — the default pick if you self-host your observability stack.

FreeCore writeHeadless

Prisma

Unusually well-matched to coding agents: the MCP server, the CLI and the schema language all target the same workflow.

FreeAdminHeadless

ClickHouse

Read-only by design and better for it — an analytics warehouse is exactly where you want agents querying, not writing.

FreeRead onlyHeadless

Playwright

The rare zero-friction entry: official, free, no auth. It loses points only because there is no hosted API or llms.txt — neither of which it needs.

FreeCore writeHeadless

Docker

Doubles as the safest way to run other people's MCP servers — containerised, with declared capabilities, instead of npx-ing a stranger's package.

FreeAdminHeadless

Redis

Vendor-maintained and full read/write — treat it like production shell access, because on a cache that is what it is.

FreeAdminHeadless

n8n

The self-hosting escape hatch: no per-call metering, full write access, and your data never leaves your infrastructure. You run it, you patch it.

FreeAdminHeadless

ElevenLabs

Clean official server, plain API key, and real generation tools — the reference example for media APIs exposed over MCP.

FreeCore writeHeadless

Paddle

Good fit for SaaS billing agents — merchant-of-record handling plus a first-party server, though it runs locally rather than hosted.

FreeCore writeHeadless

Palmier Pro

The AI-native answer to the NLE gating problem: free MCP server on 127.0.0.1, no licence wall, full timeline read/write. Editing depth is nowhere near Resolve or Final Cut, and it is macOS 26+ only.

FreeCore writeHeadless

AWS

Broadest official coverage anywhere, and the hardest auth: IAM roles and SigV4 mean agent permissions need real design, not a token in a config file.

Replicate

The widest model catalogue reachable over MCP, priced per compute-second. Cap spend before handing the key to an autonomous loop.

FreeCore writeHeadless

Resend

Write action here means mail leaving your domain, irreversibly. Excellent server; use a sending-only key and a test domain first.

FreeCore writeHeadless

Google Workspace

Highest-value, highest-blast-radius connection in the directory: an agent that can read your mail and write your docs. The Google Cloud setup is the price of admission, and no llms.txt anywhere.

Adyen

Vendor-maintained and genuinely write-capable on money movement. The gate is commercial: no merchant contract, no access.

Paid planCore writeHeadless

Brave Search

The cheapest way to give an agent real web search, and one of very few independent indexes left. Local server, plain API key.

FreeRead onlyHeadless

Honeycomb

Query-side only, but that is exactly the job — good tracing answers with a plain API key and a free tier to test on.

FreeRead onlyHeadless

New Relic

Documented first-party server with a real free tier and a published tool reference — read-focused, which is the right default for production telemetry.

FreeRead onlyHeadless

Xero

Official, write-capable, and entirely your operational problem to run — the clearest 'official ≠ hosted' case in the directory.

Paid planCore write

DaVinci Resolve

The strongest agent story in video editing — official, full timeline read/write, no auth because it is local. Pay the $295 Studio licence or none of it works.

Paid licenceCore writeHeadless

Twilio

Genuinely agent-ready, and genuinely dangerous: write actions send real SMS and calls. Use a scoped API key, not account credentials.

FreeCore writeHeadless