# Wave 4 — 100 Ideas Ranked (YC Partner consolidated)

**Generado**: 2026-05-14
**Metodología**: 5 partners YC paralelos × 5 clusters + carry-forward top Wave 3
**Filtros aplicados**: Escalable + AI ≥80% + TAM ≥€500M + Tech Claude Code + MVP ≤14d ≤€3k + No license €500k+ pre-revenue + No enterprise cycle >3m + No walled-garden ToS
**Total ideas evaluadas**: 130+ (10 clusters Wave 3+4)
**KILLs explícitos**: 25+ por FM absorption / ToS / capital intensive / domain mismatch

---

## TIER S — *"Write the check today"* (1-20) — Score ≥65/80

| # | Slug | Sector | Score | Agentic | ARPU | MVP | Thesis |
|---|---|---|---|---|---|---|---|
| 1 | **fba-reimburse-claim-agent** | E-com | 74 | 95% | €79/mes+5% | €2.5k/10d | Auto-reclama reembolsos Amazon FBA, sellers pierden 1-3% revenue |
| 2 | **GxP Validation Operator** ⭐W3 | Pharma/Biotech | 70 | 88% | €1.999/mes | €3k/21d | CSV continuo biotech/CRO, founder unfair único globalmente |
| 3 | **AutoFiscal Suite ES** ⭐W3 | Fiscal ES | 70 | 92% | €49-149/mes | €2.5k/14d | Bundle 6 módulos autónomos Verifactu/AEAT |
| 4 | **helpdesk-vertical-fitness-saas** | SaaS Support | 70 | 89% | €299/mes | €2.8k/13d | Support AI vertical fitness apps, founder ciclismo unfair |
| 5 | **supplier-radar-cn-eu** | E-com | 69 | 90% | €99/mes | €2.8k/12d | Descubre proveedores China verificados CBAM-ready EU |
| 6 | **returns-processor-end2end** | E-com | 69 | 92% | €149/mes | €2.9k/14d | Devoluciones Shopify/Woo end-to-end + vision damage assess |
| 7 | **marketplace-cross-ES** | E-com ES | 68 | 90% | €59/mes | €2.8k/12d | Re-sellers ES Vinted+Wallapop+eBay sync 1-listing-many |
| 8 | **utm-attribution-cookieless** | Marketing | 68 | 82% | €299/mes | €3k/14d | Multi-touch attribution post-cookieless, Google Privacy Sandbox |
| 9 | **membership-cancel-save-flow** | SaaS Retention | 68 | 86% | €149/mes+10% | €2.6k/11d | Intercept cancel + offer save WhatsApp+email |
| 10 | **demo-schedule-qualify-b2b** | B2B Sales | 68 | 88% | €199/mes | €2.7k/12d | Reemplaza SDR junior inbound qualify + book demo |
| 11 | **property-tour-qualification-agent** | Real Estate | 68 | 91% | €129/mes | €2.5k/11d | WhatsApp/voice agent 24/7 inmobiliarias ES |
| 12 | **ISO27001+NIS2 Compliance Suite** ⭐W3 | Compliance | 67 | 87% | €399-799/mes | €3k/21d | Bundle 4 frameworks compliance officer continuo |
| 13 | **Bookkeeping Indie Hackers USD** ⭐W3 | FinTech | 67 | 90% | $149/mes | €2.5k/14d | Pilot.com lite tribu Pieter Levels globales |
| 14 | **quote-generator-b2b-smb** | B2B Sales ES | 67 | 87% | €149/mes | €2.5k/11d | Email/form → quote PDF + follow-up auto |
| 15 | **multilingual-support-agent-eu** | SaaS Support | 67 | 91% | €399/mes | €2.9k/14d | DTC EU 5 idiomas + GxP audit GDPR compliance |
| 16 | **immigration-visa-agent-es-pt** | LegalTech | 67 | 84% | €299 flat | €2.5k/11d | Beckham + NHR + visa nómada paperwork end-to-end |
| 17 | **pharmacy-ops-agent-es** | Pharma | 66 | 88% | €99/mes | €2.8k/12d | 21k farmacias ES compras+inventario+farmacovigilancia |
| 18 | **tax-advisor-smb-es** | Fiscal ES | 66 | 89% | €19/mes | €2.9k/14d | Verifactu Jul-2026 + 3.5M autónomos |
| 19 | **influencer-outreach-negotiate-ES** | Marketing | 66 | 78% | €399/mes | €3k/14d | Micro-influencers ES outreach + negotiate auto |
| 20 | **DeliverabilityGuardian** ⭐W3 | Growth/Email | 66 | 95% | €79/mes | €1.5k/12d | SPF/DKIM/DMARC operator FM-resistant |

---

## TIER A — *"Strong, smaller check"* (21-60) — Score 55-64/80

| # | Slug | Sector | Score | Agentic | ARPU | MVP | Thesis |
|---|---|---|---|---|---|---|---|
| 21 | **dental-scribe-billing-es** | HealthTech | 65 | 90% | €99/mes | €2.5k/10d | Dental procedural NOT clinical, 28k clínicas ES |
| 22 | **seo-gap-autopublish-post-aio** | Marketing | 65 | 86% | €199/mes | €2.9k/13d | Adapt to Google AIO, auto-publish long-form |
| 23 | **QA Engineer Indie SaaS** ⭐W3 | Dev Tools | 65 | 90% | €149/mes | €2.5k/14d | Playwright + Claude vision autonomous |
| 24 | **DPO Virtual PYME** ⭐W3 | Compliance | 65 | 85% | €149/mes | €3k/14d | RGPD + NIS2 DPO end-to-end |
| 25 | **IndieOps Stack** ⭐W3 | Indie SaaS | 64 | 75% | €99/mes | €2k/14d | Stripe-ops + pricing + email + changelog bundle |
| 26 | **shop-ad-creative-variant-engine** | E-com Ads | 63 | 88% | €199/mes | €3k/14d | Shopify → 50 variants Meta+TikTok auto |
| 27 | **labor-compliance-finiquito-es** | LegalTech ES | 63 | 86% | €39/despido | €2.2k/9d | Despido + finiquito calculator SMB ES |
| 28 | **permit-application-municipal-es** | RegTech ES | 63 | 84% | €79/expediente | €2.8k/13d | Obra menor + apertura local + actividad ES |
| 29 | **daily-site-report-construction** | Construction | 63 | 87% | €99/obra-mes | €2.6k/12d | Voz móvil → reporte PDF + foto + parte horario |
| 30 | **sales-call-coach-analysis** | B2B Sales | 63 | 90% | €99/rep/mes | €2.8k/13d | Zoom/Gong-lite para SMB <50 reps |
| 31 | **Equity Analyst Junior SaaS** ⭐W3 | Wealth | 62 | 90% | €699/mes | €3k/21d | Fintool $100M ARR validated family office ES |
| 32 | **gdpr-breach-response-agent** | RegTech | 62 | 85% | €99/mes | €2.7k/12d | AEPD <72h notification + comms afectados |
| 33 | **lease-renewal-automation** | Real Estate ES | 62 | 88% | €29/contrato | €2.3k/10d | Nueva LAU 2023 + IPC update auto |
| 34 | **claude-code-cron** | AI Infra | 61 | 92% | €19/mes | €2k/9d | Scheduler Claude Code jobs 24/7 |
| 35 | **SDR Vertical-ES** ⭐W3 | B2B Sales | 61 | 92% | €299/mes | €2.5k/18d | Tonality nativa ES vs 11x.ai genérico |
| 36 | **medspa-payments-orchestrator** | FinTech | 61 | 85% | €299/mes | €2.8k/12d | Med-spas USA payments + insurance denial appeals |
| 37 | **trademark-filing-auto-es-eu** | LegalTech | 61 | 87% | €149/clase | €2.4k/10d | OEPM + EUIPO filing end-to-end |
| 38 | **course-launch-operator-skool-circle** | Creator | 61 | 82% | €499 flat | €2.8k/13d | Skool/Circle course launch end-to-end |
| 39 | **pr-pitching-journalists-vertical** | Marketing | 61 | 85% | €249/mes | €2.7k/12d | Muck Rack + Hunter + Claude personalize |
| 40 | **dac8-crypto-tax-eu** | FinTech RegTech | 60 | 88% | €99/yr | €2.8k/14d | Deadline Q4 2026 panic-buy wedge cross-país |
| 41 | **cyber-insurance-underwriting-smb** | InsurTech | 60 | 85% | €2k/mes | €3k/14d | Auto-quote MGAs NIS2 wave |
| 42 | **family-office-recon-agent** | Wealth | 60 | 88% | €499/mes | €3k/14d | Addepar-lite €5M-50M AUM, founder value max |
| 43 | **vet-practice-ops-es** | VetTech | 60 | 82% | €69/mes | €2.9k/14d | 32k vets ES practice mgmt voice |
| 44 | **ip-patent-monitor-agent** | LegalTech | 60 | 88% | €49/mes | €2.3k/10d | EPO/USPTO/OEPM scrape + freedom-to-operate |
| 45 | **admissions-essay-coach-agent** | EdTech | 60 | 92% | €99 one-time | €2k/8d | Common App + UCAS + Selectividad coaching |
| 46 | **inventory-reorder-supplier-agent** | E-com | 60 | 85% | €129/mes | €2.7k/12d | Predict stockout 14d + auto-PO supplier |
| 47 | **newsletter-sponsorship-marketplace** | Creator | 60 | 80% | 10% take-rate | €3k/14d | Marketplace 2-sided newsletters ↔ B2B advertisers |
| 48 | **cashflow-oracle-smb** | FinTech | 59 | 88% | €99/mes | €2.8k/14d | 13-week rolling forecast Open Banking |
| 49 | **pricing-dynamic-scraper-agent** | E-com | 59 | 87% | €99/mes | €2.4k/10d | Competidor scrape + Shopify update auto |
| 50 | **conference-event-lead-nurture** | B2B Sales | 59 | 84% | €99/mes+€5/lead | €2.5k/11d | Post-evento OCR cards + nurture personalize |
| 51 | **Inbound Lead Qualifier** ⭐W3 | B2B Sales | 59 | 90% | €149/mes | €1.8k/14d | Lead form → 30s qualify route |
| 52 | **optometry-scribe-rx-agent** | HealthTech | 59 | 85% | €79/mes | €2.7k/12d | 14k ópticas ES refracción + RX auto |
| 53 | **cosmetic-aftercare-bot-es** | HealthTech | 59 | 87% | €149/mes | €2.6k/11d | Estética post-op WhatsApp + foto-red-flag |
| 54 | **lab-results-parser-agent** | HealthTech | 59 | 93% | €3.99/mes | €2k/8d | PDF análisis → JSON + alerta fuera-rango B2C |
| 55 | **language-tutor-scribe-assessment** | EdTech | 59 | 89% | €19/mes | €2.3k/10d | Profesores italki/Preply scribe + assessment |
| 56 | **customs-doc-autogen-postbrexit** | Logistics | 58 | 93% | €15/envío | €2.5k/12d | DUA + CMR + cert origen post-Brexit GxP audit |
| 57 | **factoring-receivables-agent** | FinTech | 58 | 83% | take-rate | €3k/14d | Marketplace invoice factoring SMB |
| 58 | **sar-generator-fintech-smb** | RegTech | 58 | 92% | €399/mes | €2.5k/12d | SAR/STR SEPBLAC auto generate |
| 59 | **expense-autopilot-smb** | FinTech | 58 | 92% | €4/user/mes | €2.8k/14d | Pleo alternative 60% más barato EU |
| 60 | **landing-ab-test-generator-agent** | Marketing | 58 | 87% | €129/mes | €2.6k/11d | Shopify + Webflow A/B variant generator |

---

## TIER B — *"Watch / consolidate / pending"* (61-80) — Score 49-57/80

| # | Slug | Sector | Score | Agentic | ARPU | MVP |
|---|---|---|---|---|---|---|
| 61 | **pet-insurance-claims-agent** | InsurTech | 57 | 90% | €1.5k/mes | €2.8k/14d |
| 62 | **nutritionist-clinic-ops** | HealthTech | 57 | 86% | €59/mes | €2.4k/10d |
| 63 | **llm-prompt-versioning-gxp** | AI Infra | 57 | 88% | €500/mes | €2.5k/12d |
| 64 | **sanctions-screening-realtime** | RegTech | 56 | 88% | €199/mes | €2.8k/12d |
| 65 | **solar-warranty-claims-auto** | InsurTech | 56 | 87% | €1k/mes | €2.8k/14d |
| 66 | **tippool-restaurant-agent** | FinTech | 56 | 90% | €149/mes | €2.5k/10d |
| 67 | **claude-code-docs-autogen** | Dev Tools | 56 | 95% | €15/mes | €1.5k/7d |
| 68 | **autonomous-code-reviewer-pharma** | Dev Tools | 56 | 88% | €1k/mes | €2.5k/12d |
| 69 | **onboarding-checklist-agent-smb** | HR | 56 | 88% | €99/mes | €2.5k/12d |
| 70 | **shift-scheduling-hospitality-smb** | Workforce | 56 | 90% | €49/mes | €2.5k/12d |
| 71 | **qc-vision-foodline-agent** | Industrial | 56 | 92% | €299/mes | €3k/14d |
| 72 | **mental-journal-companion-nonclinical** | HealthTech B2C | 56 | 95% | €4.99/mes | €2.2k/9d |
| 73 | **treasury-multicurrency-agent** | FinTech | 55 | 85% | €199/mes | €3k/14d |
| 74 | **kyc-continuous-reverif** | RegTech | 55 | 90% | €299/mes | €3k/14d |
| 75 | **llm-redteam-vertical-fintech** | AI Infra | 55 | 90% | €3k/quarter | €2.5k/12d |
| 76 | **multi-model-router-cost** | AI Infra | 55 | 95% | 20% savings | €2k/10d |
| 77 | **vertical-rag-gxp-docs** | AI Infra | 55 | 85% | €1.5k/mes | €3k/14d |
| 78 | **public-tender-monitor-agent** | RegTech | 55 | 91% | €99/mes | €2k/10d |
| 79 | **subscription-pricing-optimizer** | SaaS Ops | 54 | 87% | €149/mes | €2.5k/12d |
| 80 | **devops-agent-rollback** | Dev Tools | 54 | 85% | €49/mes | €2.5k/12d |

---

## TIER C — *"Watch / pending validation"* (81-100) — Score 45-53/80

| # | Slug | Sector | Score | Agentic | ARPU | MVP |
|---|---|---|---|---|---|---|
| 81 | **field-tech-dispatch-agent** | Workforce | 54 | 87% | €199/mes | €2.8k/13d |
| 82 | **hr-policy-doc-agent** | HR ES | 54 | 90% | €299+€29/mes | €1.5k/7d |
| 83 | **training-compliance-tracker** | HR Compliance | 54 | 89% | €4/emp/mes | €2.2k/11d |
| 84 | **freight-quote-comparator-eu** | Logistics | 54 | 86% | €99/mes o 1% | €2.8k/13d |
| 85 | **solar-roi-residential-agent** | Energy | 54 | 87% | lead-gen €30-80 | €2.5k/12d |
| 86 | **pac-subsidy-agent-spain** | AgriTech ES | 54 | 84% | €99/year | €2.5k/13d |
| 87 | **personal-cfo-mass-affluent** | Wealth | 53 | 86% | €49/mes | €3k/14d |
| 88 | **IberDataKit (mcp-vertical-hub)** ⭐W3 | AI Infra | 53 | 80% | €49-99/mes | €1.5k/4w |
| 89 | **performance-review-cycle-agent** | HR | 53 | 85% | €149/mes | €2k/10d |
| 90 | **comp-benchmark-continuous-agent** | HR | 53 | 92% | €79/mes | €2.5k/14d |
| 91 | **crop-disease-vision-agent** | AgriTech | 53 | 88% | €19/mes | €2.2k/11d |
| 92 | **api-spec-to-mvp** | Dev Tools | 53 | 90% | €49/mes | €2k/10d |
| 93 | **vector-db-managed-gxp** | AI Infra | 53 | 85% | €1.5k/mes | €3k/14d |
| 94 | **tiktok-trend-script-research** | Creator | 52 | 85% | €79/mes | €2.4k/10d |
| 95 | **hys-savings-auto-mover** | FinTech | 52 | 80% | €5/mes | €2.8k/14d |
| 96 | **crypto-staking-yield-optimizer** | FinTech | 52 | 84% | €15/mes | €2.5k/12d |
| 97 | **private-credit-portfolio-monitor** | Wealth | 52 | 85% | €29/mes | €2.8k/14d |
| 98 | **db-query-optimizer-agent** | Dev Tools | 52 | 90% | €39/mes | €2k/10d |
| 99 | **multimodal-pipeline-podcast** | Creator | 52 | 90% | €39/mes | €2k/10d |
| 100 | **agent-memory-saas** | AI Infra | 52 | 90% | €29/mes | €2k/10d |

---

## Sector breakdown (top 100)

| Sector | Count | Avg score | Notas |
|---|---|---|---|
| **E-commerce / Retail** | 12 | 64 | Top tier (FBA + Shopify ecosystem maduro) |
| **B2B Sales / SDR / Lead** | 10 | 60 | Vertical-ES + GxP audit-trail leverage |
| **HealthTech non-clinical** | 9 | 59 | Dental + óptica + estética + lab + fisio adjacents |
| **FinTech / RegTech** | 14 | 56 | Compliance ES + Fiscal + Insurance (lending killed) |
| **AI Infra / Dev Tools** | 12 | 54 | Vertical-ES sobrevive FM absorption |
| **LegalTech ES** | 7 | 61 | Beckham/NHR + finiquito + permits + IP |
| **Real Estate ES** | 3 | 64 | Property tour + lease renewal + admin fincas |
| **EdTech vertical** | 4 | 57 | Admissions + tutor + bootcamp (Oposita killed) |
| **Construction / BIM** | 2 | 62 | Daily reports + permits municipales |
| **HR / Workforce** | 10 | 53 | Onboarding + reviews + comp benchmark |
| **Logistics / Supply** | 4 | 56 | Customs post-Brexit + freight quotes |
| **Marketing / Growth** | 9 | 60 | Operators end-to-end (no horizontal content) |
| **AgriTech / Energy** | 4 | 53 | PAC subsidies + crop disease + solar |

---

## KILLs explícitos (no entran top 100)

**Razones agrupadas**:

| Razón KILL | Count | Ejemplos |
|---|---|---|
| FM absorption ALTO (Anthropic Operators / OpenAI Assistants v3) | 8 | product-photo-enhance, cart-abandon-recovery, brand-monitor-full-auto, youtube-faceless, order-status-shopify-magic, seo-factory-generic, agent-memory-horizontal, content-ops-agency |
| Walled-garden ToS (LinkedIn/Twitter/Reddit auto-posting) | 4 | linkedin-outbound, twitter-x-growth, reddit-growth, IG auto-DM |
| License regulatoria pre-revenue €500k+ | 4 | financial-advisor-junior-HNW (CNMV EAFI), compliance-officer-fintech-EMI license, MIFID II suitability, banking license requirements |
| Capital intensive bootstrap | 5 | B2B BNPL, Construction draw lending, Inventory financing Shopify, RBF SaaS, Surety bonds construction |
| Enterprise sales cycle >3m | 4 | EHDS hospitales privados, Sales Engineer SaaS, Construction enterprise BIM, Government B2G |
| Founder NO domain | 6 | Patent search drafting, notary helper, architect site visit, OSHA cert, ICAM intrusismo legal substantive |
| TAM <€500M nicho extremo | 3 | Marine cargo claims, REIT analyzer, private credit micro |
| Hardware dependency | 2 | Predictive maintenance bodegas, Amazon FBA store operator (capital inventory) |

**Total KILLs**: ~36 ideas evaluadas que NO pasan filtros estrictos.

---

## Insights críticos cross-Wave 4

1. **"Service-as-a-Software vertical-ES" sigue siendo el playbook ganador** — 8/20 Tier S y 24/40 Tier A son vertical-ES (Pharmacy, Tax, Permit, Dental, Vet, Visa, Customs, PAC, etc). FM absorption BAJO porque endpoints + corpus regulatorio ES no son priority Anthropic/OpenAI.

2. **Patrón "Auto-recovery / Auto-claim" emerge** — FBA reimburse (#1), Returns processor (#6), Pet insurance claims (#61), Solar warranty (#65) — todos comparten estructura: detección automática + claim auto + recovery. **Bundle "Auto-Recovery Suite"** potencial: cliente paga % de lo recuperado.

3. **GxP audit-trail isomorphism aparece en 18/100 ideas** (founder unfair leverage máximo). Defendible 24-36m vs foundation models.

4. **Top 20 Tier S TAM combinada >€20B global** — todos individuales superan criterio €500M.

5. **Lending plays MURIERON sin excepción** — 5 killed por capital intensive. Bootstrap solo-founder no puede operar balance sheet. **Marketplace lending = viable** (factoring-receivables-agent #57 sobrevive como matchmaker).

6. **Wave 4 cluster D (E-com/Marketing) gana volumen Tier S/A** — 12 ideas en top 60, driven por Shopify ecosystem maduro + APIs estables + ARPU mid-tier €99-299/mes.

7. **3 áreas DOMINANTES post-FM absorption + ToS audit**:
   - **Compliance + Audit-trail ES regulatorio** (RegTech vertical-ES)
   - **E-commerce ops verticales** (Shopify + Amazon FBA ecosystem)
   - **Vertical Pro Services** (Pharma, Dental, Vet, Óptica, Legal, Real Estate ES)

---

## Próximo paso operativo recomendado

**De los Tier S, priorizar deep-dive E2 sobre estos 5** (combinación máxima YC score × founder unfair × ARPU × MVP rápido):

1. **fba-reimburse-claim-agent** — 74/80, MVP €2.5k/10d, % recovery model = cero CAC barrier
2. **GxP Validation Operator** — 70/80, founder unfair único globalmente
3. **helpdesk-vertical-fitness-saas** — 70/80, ciclismo dogfood + GxP audit
4. **AutoFiscal Suite ES** — 70/80, TAM 3.4M autónomos + Verifactu forcing
5. **DeliverabilityGuardian** — 66/80, MVP más barato €1.5k/12d + Founder dogfood propio cartera

**Build estos 5 en paralelo lite-pipeline 30 días cada uno = portfolio Pieter Levels óptimo**. Total cap €12-15k MVP + 12-16 semanas timeline.

---

## Comando re-entry

```
Lee ideas/pending_review/2026-05-14_yc-brainstorm-wave3/wave4-100-ideas/RANKING_100.md
Revisa el HTML interactivo en wave4-100-ideas/ranking_100.html
Decide qué 3-5 picks promover a slot portfolio o lanzar customer development inmediato
```