{"asOf":"2026-10-28","storesIpAddresses":false,"archetype":"zero-budget-bootstrap-stack","requestedArchetype":"zero-budget-bootstrap-stack","budgetAppliedUsd":null,"title":"$0 Cardless Autonomous Bootstrap Stack","summary":"100% free-tier / open-source stack requiring $0 upfront spend so an autonomous agent can ship a working product immediately.","estimatedMonthlyUsd":{"hobby":0,"startup":0,"scale":95},"oneLineInstallCmd":"npm install @openrouter/ai-sdk-provider openai cross-fetch @neondatabase/serverless resend langfuse","requiredEnvVars":["OPENROUTER_API_KEY","JINA_API_KEY","DATABASE_URL","NEON_API_KEY","RESEND_API_KEY","LANGFUSE_PUBLIC_KEY","LANGFUSE_SECRET_KEY"],"wiringNotes":"Every slot runs at $0/mo on verified free tiers (OpenRouter + Jina Reader + Neon Free + Resend Free + Langfuse Hobby).","slots":[{"role":"Free-Tier LLM Inference Router","jtbd":"llm-router","providerId":"openrouter","providerName":"OpenRouter","editorialOverall":8,"activeSku":"openrouter/free-router-tier","envVars":["OPENROUTER_API_KEY"],"smokeTestCmd":"curl -sS https://openrouter.ai/api/v1/auth/key -H \"Authorization: Bearer $OPENROUTER_API_KEY\"","day2Gotcha":"Pass HTTP-Referer and X-Title headers for transparent attribution and rank telemetry.","whyItFits":"Immediate signup with free-tier open models and zero monthly platform fee.","decideUrl":"/api/decide?jtbd=llm-router"},{"role":"Cardless Markdown Web Reader","jtbd":"web-scraping","providerId":"jina","providerName":"Jina AI","editorialOverall":8.12,"activeSku":"jina-reader-free-cardless","envVars":["JINA_API_KEY"],"smokeTestCmd":"curl -sS https://r.jina.ai/https://example.com -H \"Authorization: Bearer $JINA_API_KEY\"","day2Gotcha":"No per-model price on https://jina.ai/embeddings/ (fetched 2026-10-25, HTTP 200: no $ amount anywhere in the page HTML); prices come only from GET api.jina.ai/v1/models","whyItFits":"GET https://r.jina.ai/{url} works immediately with no credit card required.","decideUrl":"/api/decide?jtbd=web-scrape"},{"role":"Free-Tier Serverless Postgres","jtbd":"serverless-postgres","providerId":"neon","providerName":"Neon","editorialOverall":8.59,"activeSku":"neon-free-tier","envVars":["DATABASE_URL","NEON_API_KEY"],"smokeTestCmd":"node -e 'fetch(\"https://console.neon.tech/api/v2/projects\",{headers:{Authorization:\"Bearer \"+process.env.NEON_API_KEY}}).then(r=>console.log(r.status))'","day2Gotcha":"Always use the -pooler hostname or @neondatabase/serverless HTTP driver in Vercel/Cloudflare Workers.","whyItFits":"Free tier (0.5 GB storage, 100 CU-hours/mo) with no credit card required.","decideUrl":"/api/decide?jtbd=postgres-vector"},{"role":"Free-Tier Transactional Email","jtbd":"transactional-email","providerId":"resend","providerName":"Resend","editorialOverall":8.57,"activeSku":"resend-free-3k","envVars":["RESEND_API_KEY"],"smokeTestCmd":"curl -sS https://api.resend.com/domains -H \"Authorization: Bearer $RESEND_API_KEY\"","day2Gotcha":"Use the /emails/batch endpoint (up to 100 emails/call) to avoid hitting the 2 req/sec rate limit.","whyItFits":"Free tier includes 3,000 emails/mo (100/day) with no credit card required.","decideUrl":"/api/decide?jtbd=transactional-email"},{"role":"Open-Source Tracing & Evals","jtbd":"llm-observability","providerId":"langfuse","providerName":"Langfuse","editorialOverall":8.66,"activeSku":"langfuse-hobby-free-50k","envVars":["LANGFUSE_PUBLIC_KEY","LANGFUSE_SECRET_KEY"],"smokeTestCmd":"curl -sS https://cloud.langfuse.com/api/public/health","day2Gotcha":"Always await langfuse.flushAsync() in serverless waitUntil() or finally{} blocks.","whyItFits":"50,000 free observations/mo on Hobby cloud or 100% self-hosted OSS.","decideUrl":"/api/decide?jtbd=llm-observability"}],"cite":"Agent Provider Depot Blueprint (zero-budget-bootstrap-stack, as of 2026-10-28). https://getagentdepot.com/blueprints"}