Martech

Best-in-class stack for a solo PLG developer SaaS marketer

7 categories · multi-source verified · near-zero manual work
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Tristan · May 2026

Stack at a Glance

Every tool matched to the GTM plan. Every price verified against primary source.

Category	Tool	Price	Why
Orchestration	LangGraph + LangSmith	$39/mo	Stateful agents + full trace observability. Hydra's own stack.
Paid Media	Synter	$99/mo	Only tool covering Google + LinkedIn + Reddit + X + Meta under $300/mo. AI optimization. No spend fees.
Website CMS	Next.js + Vercel + Sanity	$20/mo	What Linear, PostHog, Resend, Clerk, Figma all run. Maximum performance and dev credibility.
Analytics	PostHog	Free	Analytics + session replay + flags + A/B + surveys on one free tier. MCP server.
Email	Loops + Resend	$49 + $20/mo	Loops: PLG lifecycle. Resend: transactional API. Two different jobs.
CRM	Attio	Free	API + MCP on free tier. PLG object model. Native Stripe + GitHub.
SEO	Ahrefs	$129/mo	Largest backlink index. Best keyword explorer for developer content.
Creative & Motion	Creatify	$33/mo (Starter)	AI video ads from a URL. Native Synter integration. 2.7x more leads vs static image ads. No production team needed.
Billing	Stripe	2.9% + 30¢	Subscription billing. Feeds Attio (native integration) and Loops (webhook triggers). See /billing deck.

Total tooling: ~$317/mo. Built for one person. Near-zero manual work across all 7 functions.

01 — Orchestration

Build GTM agents that run 24/7. No vendor. No per-workflow tax.

Why #1

LangGraph is the only framework where agents maintain state across steps with human-in-the-loop as a first-class primitive — not a workaround. Every run is traced in LangSmith. Hydra already uses this stack — GTM agents run in the same environment as the product. No context switching, no vendor lock-in. Source: langchain.com/langgraph (stateful agents, HITL primitive) · smith.langchain.com/pricing ($39/mo Plus verified 2026-05-01)

Tool	Price	What it does	Verdict
LangGraph + LangSmith	OSS + $39/mo Plus	Stateful multi-step agents. Human-in-the-loop. Full trace observability. MCP native.	Rec
n8n (self-host)	Free	400+ integrations. Bridge for simple trigger-response workflows while agents are being built.	Bridge
Make / Zapier	$10–$49/mo	Drag-and-drop. Deterministic only — no AI-native agent capabilities.	Skip

n8n pricing correction

n8n Cloud Business is $800/mo — not $60–667 as cited in comparison articles. Self-host is free and the right call if needed.

02 — Paid Media Management

Google · LinkedIn · Reddit · Meta · X. One dashboard. AI does the work.

Why #1

Synter is the only tool at under $300/mo managing Google, LinkedIn, Reddit, X, Meta, TikTok, and 7 more channels from one interface with AI bid/budget optimization. No ad spend fees. Has an MCP server — Claude Code can manage campaigns directly. Growth plan ($299/mo) adds Attio CRM sync. Source: syntermedia.ai/pricing (13+ platforms, $99 Starter, $299 Growth, MCP server confirmed 2026-05-01)

Channel coverage vs GTM plan

Channel	GTM Budget	Synter
Google Search	$5K/mo	Yes
LinkedIn Ads	$4K/mo	Yes
Reddit Ads	$3K/mo	Yes
Carbon Ads	$2K/mo	Direct buy*
Meta	Expansion	Yes
X	Expansion	Yes

*Carbon Ads is a direct-buy network, managed separately via their sales team.

Plans

Starter — $99/mo

All 13+ platforms. Unlimited campaigns. AI bid + budget optimization. MCP server. Start here.

Growth — $299/mo

Everything in Starter + Attio CRM sync + AI creatives + CAPI tracking. Upgrade when spend exceeds $30K/mo.

Why competitors lose

Metadata.io: $5–7K/mo platform fee. Revealbot: No LinkedIn or Reddit. Optmyzr: No Reddit or X. WordStream: Google only.

02b — Carbon Ads

Developer-native ad network. 900+ curated dev sites. Whitelisted on AdBlock Plus.

Why it's in the plan

Carbon is the only ad network where your ad runs exclusively on developer sites developers use during their workday. Whitelisted on AdBlock Plus — you reach devs who block every other network. MongoDB, GitLab, Slack, CircleCI all run it. CircleCI: 65% lower cost-per-lead. Source: carbonads.net/more-info ($4.75 CPM Dev Focus, AdBlock whitelist confirmed)

Carbon Ads facts

900+ curated developer and designer sites
$4.75 CPM Dev Focus audience
$2K/mo in GTM plan (min $5K recommended for scale)
No self-serve — contact sales directly
Whitelisted on AdBlock Plus

How it fits

Demand creation, not capture

Google captures intent. Carbon creates it. Developers see Hydra on sites they trust during working hours — before they ever search for a solution.

What to run

"Find it. Fix it. Govern it. — install free." Short copy. Direct CTA to GitHub App install. No marketing fluff. Their audience punishes it.

Not managed through Synter

Carbon is a direct-buy publisher network. Budget it separately from self-serve channels.

02c — Creative & Motion

AI video ads from a URL. No production team. No design skills required.

Why #1

Creatify is the only tool that turns a product URL into performance-optimized video ads in minutes — and it's a native Synter integration. Give it your URL or brief, pick style (UGC or cinematic), batch generate variations, push directly to ad platforms. AI tracks CTR and ROAS per creative. You kill losers, scale winners. No editor, no agency, no production budget. Source: creatify.ai/pricing ($33/mo Starter, 20 videos/mo verified) · creatify.ai (2.7x more leads vs static, 90% lower production cost — n=Meta, Wistia, HubSpot, Creatify benchmarks)

How it works

1 — Discover

Browse winning ad templates by industry and platform. Analyze competitor creative strategy. Remix proven concepts.

2 — Create

Paste your URL. Pick UGC-style (authentic) or cinematic. Batch generate a dozen variations at once. 300 AI actors, 200+ templates.

3 — Launch & Optimize

Push to Meta, TikTok, LinkedIn, Google via Synter. Track spend, ROAS, and CTR per creative. Kill losers. Scale winners.

Plans

Starter — $33/mo

20 video ads/mo · 200 image ads/mo · 300 AI actors · 200+ templates · No watermark · All creation tools. Start here.

Results (verified)

2.7x more leads vs static image ads
1.7x higher ROI
90% lower production cost
−46% CPA (agency benchmark)
SOC 2 Type II — enterprise security

Synter integration

Named AI partner on Synter's platform. Creatives flow directly into Synter for distribution and optimization. One workflow, no tab-switching.

03 — Website CMS

Next.js + Vercel + Sanity. The stack every top PLG developer SaaS company runs.

Why #1

Next.js is what Linear, PostHog, Resend, Clerk, Vercel, Figma, Netlify, and Replit all run on their marketing sites. Full control over performance, SEO (JSON-LD native, structured data, ISR), and design. A Framer or Webflow URL signals "we bought a template." Next.js built to your design system signals an engineering-led company. Mobile PageSpeed 90+. No caps. Pair with Sanity (free, 3 users) so marketing edits content without touching code — Figma, Netlify, Replit all use this pattern. Source: resend.com/handbook/engineering (Next.js + Vercel confirmed) · posthog.com/handbook/engineering/stack (confirmed) · pragmaticengineer.com (Linear confirmed) · wappalyzer.com (Figma, Netlify, Replit, Expo, Coda, Amplitude, Cloudflare, Loom all on Sanity — verified 2026-05-04)

Tool	Price	Used by	Verdict
Next.js + Vercel + Sanity	Free OSS · Vercel Pro $20/mo · Sanity free (3 users)	Linear, PostHog, Resend, Clerk, Vercel, Figma, Netlify, Replit, Expo, Cloudflare, Loom	Rec
Framer	$30/mo Pro	Design agencies, pre-PMF startups. Not used by any established PLG dev SaaS as primary site.	Skip

Why not Framer or Webflow

Framer: mobile PageSpeed ~40, CMS capped at 10k items, no JSON-LD natively, React runtime lock-in. Webflow: visual editor ceiling, not what any dev-credibility company uses. Neither is used by any company in the peer set above.

04 — Analytics

Full PLG analytics suite free. Enable group analytics before launch.

Why #1

PostHog is the only tool combining product analytics + session replay + feature flags + A/B testing + surveys + error tracking on a single free tier. Open source — no vendor lock-in, self-host option. MCP server lets Claude query product data directly. Mixpanel, Amplitude, and Heap each require separate tools to match this. Source: posthog.com/pricing (free tier scope confirmed) · posthog.com/docs/mcp (MCP server confirmed) — verified 2026-05-01

Tool	Price	What you get	Missing	Verdict
PostHog	Free (1M events/mo) $0.0003/event after	Analytics + replay + flags + A/B + surveys + errors. Open source. MCP server.	Group analytics (org-level) is a paid add-on — required for B2B.	Rec
Mixpanel	Free (1M events) · $28/mo Growth	Best event tracking UX. Best cohort analysis.	No session replay. No feature flags.	Alt
Amplitude	Free (10M events) · $61+/mo Plus	Strong behavioral cohorts.	No replay, no flags. Pricing escalates sharply.	Skip

Pre-launch action item

Enable group analytics before launch. Without it you can only track individual users — not which companies are converting.

05 — Email

Two tools. Lifecycle and transactional are different jobs.

Why Loops #1

Built specifically for PLG SaaS. Event-triggered lifecycle flows tied directly to PostHog events and Stripe webhooks without middleware. The only tool designed around "install → activate → convert." Source: loops.so/pricing ($49/mo, 5k contacts verified) · loops.so/docs (PostHog + Stripe webhooks confirmed)

Lifecycle email

Tool	Price	Verdict
Loops	$49/mo (5k contacts)	Rec
Customer.io	$100/mo (5k)	At scale
Intercom	$74/mo	Later
Mailchimp	$13/mo	Skip

Why Resend #1

Developer-first API with React Email support. Build transactional emails as React components — same workflow as the rest of the stack. Ships in an afternoon. Source: resend.com/pricing (free 3k/mo, $20 Pro verified) · resend.com/handbook/engineering (Resend itself runs on Next.js + Resend)

Transactional email

Tool	Price	Verdict
Resend	Free (3k/mo) · $20/mo Pro	Rec
Postmark	$15/mo (10k/mo)	Alt
AWS SES	$0.10/1k	Skip
SendGrid	Free tier dead May 27 2025	Dead

06 — CRM

PLG-native object model. API + MCP on free tier. Stripe + GitHub native.

Why #1

Attio is the only CRM with API + MCP server on the free tier, a workspace/org object model built for B2B SaaS, and native Stripe + GitHub integrations. MCP server means AI agents can query and update CRM records directly. Synter Growth plan syncs ad data to Attio — closing the loop from ad click to customer. Source: attio.com/pricing (free 3 seats, API access confirmed) · attio.com/docs (MCP server, Stripe + GitHub integrations confirmed) — verified 2026-05-01

Tool	Price	Best for	Verdict
Attio	Free (3 seats) · $29/user Plus · $69/user Pro	PLG object model. API + MCP on free. Stripe + GitHub native. Synter sync on Growth.	Rec
HubSpot	Free · $15/user Starter · $90/user Pro	Largest ecosystem. Best reporting at scale.	At scale
Pipedrive	$14/user	Sales-motion pipeline UI.	Skip — wrong motion

Clearbit is dead as standalone

Clearbit sunsetted April 2025 — now HubSpot-only. Not a reason to switch. Use PDL or Reo.dev for enrichment.

07 — SEO

Tier 1 category keywords have near-zero competition. Own them at launch.

Why #1

Ahrefs has the largest backlink index of any SEO tool and the best keyword explorer for developer and technical content. For Hydra's Tier 1 keywords ("autonomous code remediation governance," "fix gauntlet code quality") competition is near zero — Ahrefs verifies this and tracks ranking from day one. These keywords close before competitors name the category. Source: ahrefs.com/pricing ($129/mo Lite verified 2026-05-01 — most sources still cite $99, that price is retired)

Tool	Price	Best for	Verdict
Ahrefs	$129/mo Lite · $249/mo Standard	Backlink analysis. Technical keyword research. Site audit. Content gap. Developer tool SEO.	Rec
Semrush	$139/mo Pro · $249/mo Guru	Competitive intelligence dashboard.	Alt
Moz Pro	$99/mo	Cheapest option. Inventor of Domain Authority.	Skip — fallen behind
Surfer SEO (add-on)	$99/mo Essential	NLP content scoring. Real-time editor. Pairs with Ahrefs.	Add at 4+ articles/mo

Price correction

Ahrefs Lite is $129/mo. The $99 price is out of date and still cited in most comparison articles. Verified ahrefs.com/pricing 2026-05-01.