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Open source Medium alternatives for AI agents

2 alternatives to Medium. 2 have an interface an agent can drive. 2 are open source.

ListingLicenseAgent interfaceReachEffortLast activity
Ghost MIT API, from the builder 8 of 10 jobs Light edit Sep 3, 2026
WriteFreely AGPL-3.0 API, from the builder 7 of 10 jobs Config only Sep 1, 2026

Ghost

Open-source publishing platform with newsletters and memberships, driven through the official Admin API.

Self-hosted · Ghost(Pro) Starter: $18 per month · Ghost(Pro) Publisher: $29 per month · Ghost(Pro) Business: $199 per month

Use it when
  • I publish a newsletter and blog and want members and payments without Substack's cut
  • I want my agent to draft posts, schedule them, and email subscribers through a real API
An agent cannot reach
  • Read post and email analytics
  • Moderate member comments
Gotchas
  • Production requires MySQL 8; SQLite is dev-only
  • Self-hosted newsletters need a Mailgun account for bulk sending; SMTP only covers transactional mail
  • Admin API uses short-lived JWTs minted from an Admin API key; the official @tryghost/admin-api client handles this
  • The repo's .env.example is empty of variables; configuration is the config.*.json family, not .env
  • Third-party MCP wrappers exist (for example MFYDev/ghost-mcp) but are not needed for operability

WriteFreely

Minimalist federated blogging server in one Go binary, driven by the official Write.as API and wf CLI.

Self-hosted · Write.as managed hosting

Use it when
  • I want a fast, plain blog I own that also shows up in the fediverse
  • I want my agent to publish posts from my notes to my own instance with a one-line CLI
An agent cannot reach
  • Federate over ActivityPub
  • Invite and manage users
  • Browse the local reader timeline
Gotchas
  • AGPL-3.0 (server); the CLI is GPL-3.0
  • Read operations on public content need no auth; writes need a token from /api/auth/login with username and password
  • No env var surface; configuration is the ini file only
  • Some write.as-only API features are not in WriteFreely; build against the WriteFreely subset

Questions

Is there an open source alternative to Medium?

Yes. Both listings here are open source: Ghost (MIT), WriteFreely (AGPL-3.0).

Which Medium alternatives have an MCP server?

None of these has an MCP server from its builder on record. The recorded interface is API.

Which Medium alternative can an agent do the most with?

Ghost: 8 of 10 recorded jobs reachable. Jobs differ by listing, so read each list before you choose.

Listings come from reading each repo and its docs. Reach counts the jobs an agent can do through the stated interface, and each listing page shows the evidence. Order follows fit. For agents: Markdown · JSON