Open source · MCP server · MIT

SEO Agent

An open-source AI SEO agent and MCP server for link building.

It runs inside Claude Code, Cursor, Codex or any MCP client, plans a backlink campaign for your URL, builds each link by following that site's method, and checks that it went live. Twenty-five sites free from GitHub; every one of 1,245 for $97 a year.

pip install seo-agent && claude mcp add seo-agent -- seo-agent

Install free, 25 sites How it builds a link

1,245backlink sites in the library

1,138verified reachable this month

900dofollow

117sites at DA 90 or higher

25free, with methods, two at DA 90+

What the agent does

Plans

Picks sites by authority and effort, balances the dofollow share, and assigns anchor text by the ratio you set: exact, partial, branded, naked, generic.

Builds

Login-free sites run on scripted playbooks. Account-based sites run on the model-driven browser executor: it reads the site's method and the page each turn, signs up, fills the profile or writes the post, and places the link, with a proof screenshot.

Verifies

Opens the live page and checks the hyperlink, the anchor text and whether it is nofollow before a link counts. Every result is logged with its proof, and a re-check later shows which links still stand.

Gates are handled in the chat, not skipped

When a site asks for a captcha, an email code, a phone code, a social login or a payment, the agent stops and asks you in the same conversation. You clear it in the browser window it opens, connect a service once (a captcha solver, your inbox over IMAP, an SMS number) so it handles the next one itself, paste the code, or skip the site. Then the build continues where it stopped.

Model-driven executorBuilds on account-based sites: profiles, articles, forums, directories, page builders

Services connected onceCaptcha solver, IMAP inbox and SMS; verification links and codes read automatically

Background jobsQueue a build and poll it, so clients with short tool timeouts never drop a link

Identity generationA complete, consistent sign-up identity on your catch-all domain

Monitoring and reportsRe-check every placed link, campaign report with every live URL, CSV export

Dashboard and creditsA page per API key with credits, campaigns, results and proof screenshots; only live links are charged

The free backlink sites list

Twenty-five reachable sites, DA 20 to 96, 25 dofollow, two at DA 90 or higher, each with a step-by-step method your assistant can follow. The first twelve:

Site	DA	Referring domains	Method	Link
Medium	96	1,371,100	Article or blog post	dofollow
IMDB	95	891,904	Profile website field	dofollow
Zotero	75	51,364	Bookmark / link submit	dofollow
ArtFire	75	31,486	Profile website field	dofollow
Milkyway (.edu)	75	9,011	Profile website field	dofollow
DsiBlogger	74	37,269	Article or blog post	dofollow
FireBlogz	74	39,401	Article or blog post	dofollow
Beatstars	73	39,465	Page builder site	dofollow
Flip HTML5	73	226,903	Shared document	dofollow
Figma	71	101,339	Social post	dofollow
MD Anderson	71	918	Other	dofollow
Wakelet	71	191,490	Bookmark / link submit	dofollow

All 50 in the README

Site lists with DA and referring domains

Social bookmarking sites181 sites in the library Profile creation sites575 sites in the library Guest posting & article sites239 sites in the library Web 2.0 sites69 sites in the library Directory submission sites6 sites in the library Forum posting sites34 sites in the library High DA backlinks (DA 90+)117 sites in the library

Guides

What it replaces

Fifty verified, dofollow-checked backlinks a month is a job. Typical ways to get it done, at typical market rates:

	Cost	Time to 50 links	Knows the sites?
In-house link builder	$2,500 to $4,000 a month, plus tools	3 to 6 weeks at 30 to 60 minutes per link	Only the sites they have used before; a new hire starts from a blank list
Agency or marketplace	$150 to $400 per DA 40+ dofollow link: $7,500 to $20,000 per 50	4 to 8 weeks	Their list, not yours; you never see the method
Freelancer on a gig site	$10 to $50 per link	1 to 2 weeks	Usually the same 100 sites everyone else spams
SEO Agent	$97 a year or $27 a month	An afternoon; login-free sites build in seconds each	1,245 sites with the exact method for each, verified monthly, with DataForSEO metrics

The library is the part a team cannot copy quickly. Every site in it came from years of link building: which DA 60 profile page still gives a dofollow link, which forum strips links from new members, which shortener sits behind a captcha, which directory approves in a day. Each entry carries the method with the exact button names, what the site requires, and referring domains, spam score and traffic. A person could rebuild that list, but it would take them the same years.

Pricing

Free, open source25 sites with their methods, two at DA 90 or higher. Links built in your own browser on login-free sites, the method followed with you on the rest, every link verified and logged. pip install, no account.

$97 a yearAbout $8 a month, billed yearly. All 1,245 sites, the campaign planner, building on account-based sites, gates with connected services, monitoring, reports and a dashboard. Subscribe, say activate in the chat, done.

$27 a monthThe same, month to month, cancel any time. Fair use on both plans: 500 placed links per key in any 30 days.

Works in Claude Code, Claude Desktop, claude.ai, Cursor, Codex, ChatGPT and any MCP client: the pip package for local mode, a personal link for connectors.

Subscribe, $97 a year $27 a month Install free