ENFRES

Fuentes y licencias

Qué fuentes públicas leemos — y cuáles rechazamos

Una fuente alimenta un informe solo si se cumplen dos cosas: su veredicto de licencia es utilizable, y existe un conector. Un veredicto rojo es una fuente que rechazamos, no una que nos falta — y ninguna cifra de ningún informe viene de otro sitio que de esta lista.

  • Verde — Gratuita, autorizada o API oficial — se lee libremente.
  • Ámbar — Permitida pero de pago, con límite de ritmo o bajo clave — se abre con una clave de pago.
  • Rojo — Condiciones que lo prohíben, o precio solo para grandes cuentas — rechazada; nunca se conecta.

Demanda — señal comunitaria

FuenteVeredictoCosteEstadoPor qué
Android Enthusiasts (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Ask Different (Apple) (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Bicycles (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Freelancing (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Gardening & Landscaping (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
GitHub Issues Resuelve hasta todo el mundoVerde Gratis Leída hoyFeature requests = purest unmet-need signal.
Hacker News (Algolia) Resuelve hasta todo el mundoVerde Gratis Leída hoyFounder/dev pain, launches, Ask HN threads.
Home Improvement (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Homebrewing (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Law (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Music: Practice & Theory (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Package downloads (npm + PyPI) Resuelve hasta todo el mundoVerde Gratis Leída hoyNumbers only — not free-text signal. npm last-month downloads (api.npmjs.org; Public Registry ToS grant does not literally name this host — G1 R1) + PyPI via pypistats (cache daily). Recorded as a volume reading. Routed only — not a default source.
Parenting (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Personal Finance & Money (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Pets (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Photography (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Physical Fitness (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Project Management (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Seasoned Advice (cooking) (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Software Quality Assurance & Testing (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Software Recommendations (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Stack Overflow (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyTechnical pain, unmet needs, 'is there a tool' questions.
The Great Outdoors (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
The Workplace (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Travel (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
User Experience (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Video Production (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Webmasters (Stack Exchange) Resuelve hasta todo el mundoVerde Gratis Leída hoyCommunity-site variant of the stackexchange connector; routed by idea class and by the seed's own subject. Same API, key, quota and licence as Stack Overflow — the cost of an entry is one dict line.
Wikimedia Pageviews Resuelve hasta paísVerde Gratis free (no key; UA required)Sin conectarFree, keyless and language-partitioned (a real FR/ES parity lever) — and it measures encyclopedic ATTENTION, not commercial intent. Scoped 2026-08-06 as the keyless way to lift the hard-demand confidence cap, then refused: at the time the completeness check counted calls and not kinds, so wiring it into the probe scope would have raised confidence 0.5→0.7 on a measurement of the wrong thing, invisibly. That hole is now closed at the runtime (only intent measurements count toward the cap), so the cap no longer depends on this refusal holding — but the refusal stands on its own merits. Wire it as EVIDENCE (a topic-attention reading rendered as such) if wired at all; never as an intent provider (the intent-provider list is the only thing that lifts the cap).
DataForSEO (search intent / Trends) Resuelve hasta ciudadÁmbar De pago PAYGLeída hoySearch-intent + keyword volume; floors at city (no sub-city volume).
Discourse public JSON (per-forum allow-list) Resuelve hasta todo el mundoÁmbar Clave requerida free (per-forum rate limits; API key optional/per-forum)Sin conectarG1 2026-08-06: software surface is sanctioned JSON; each forum's ToS is the real gate. G5 verified reachability of several public /search.json endpoints but found no host whose terms affirmatively permit automated commercial retrieval of post text — the allow-list is therefore empty. Never unsolicited multi-forum crawl. Wire only allow-listed instances, each as its own row marked built.
Forum threads via Google (DataForSEO SERP) Resuelve hasta paísÁmbar De pago PAYGSin conectarThe discussion threads Google itself lists for a query, read through the same paid search-data provider as the search-volume probe: titles, hosts and post counts of Reddit, Nextdoor, Quora and trade-forum threads, never the posts' text. Not wired yet: the connector is a named lot; until it lands, a local-service idea reads only the search-volume probe and the Stack Exchange room of its trade, and refuses honestly when those are silent.
YouTube Data API v3 Resuelve hasta todo el mundoÁmbar Clave requerida free (10k quota units/day; search.list costs 100 each)Sin conectarBuilt as G3 (PR #21) and refused on 2026-08-06 — not on the licence, which is workable, but on two clauses our pipeline cannot satisfy today. API ToS III.E.4.h: a developer must not 'use the YouTube API Services to create derived scores or metrics' — the demand score IS one, and the scoring step has no per-source exclusion path, so a YouTube signal's engagement reaches the score through the engagement term and its text through the pain blend. III.E.4.d requires stored API data to be refreshed or deleted within 30 days — incompatible with a buyer's permanent report and with frozen replay corpora holding full signal text in git. Quota makes it scarce too (one 100-unit search.list per keyword ⇒ ~100 keywords/day for a whole deployment), but scarcity is not why it is refused. Wire only behind a context-only path that keeps a source out of every scored quantity, plus a real retention mechanism. Until then the content-creator idea class has no community source, and the report says so rather than implying one.
LinkedIn Rojo — RechazadaToS-hostile.
Reddit (direct API) Rojo — RechazadaThe dependency that killed GummySearch. Only via a reseller if economics close.
X / Twitter Rojo — RechazadaToS-hostile.

Comercio — lectura de marketplaces

FuenteVeredictoCosteEstadoPor qué
eBay (Browse API) Resuelve hasta paísVerde Clave requerida free dev accountLeída hoyitemCount + price band. Browse API needs an OAuth token minted from App ID + Cert ID (client secret) — not App ID alone.
Etsy Resuelve hasta todo el mundoVerde Clave requerida Leída hoyFree niche demand; Etsy Open API v3 public read needs an x-api-key keystring (OAuth only for private/write).
Amazon (Keepa + Rainforest) Resuelve hasta paísÁmbar De pago Keepa €19/mo base + €49/mo API · Rainforest from $23/mo (500 req, free trial; $375/mo = 250k)Leída hoyBSR = demand, price history = price-band fit, reviews = buyer pain. Keepa needs the €19/mo base sub on top of the API tier.
Google Shopping via DataForSEO Resuelve hasta ciudadÁmbar De pago PAYGLeída hoyRewritten 2026-09-10: the endpoint wired 2026-08-03 was dead on arrival. Now DataForSEO's asynchronous Merchant API, queued and polled until ready. Zero new credentials (reuses the demand probe's pair). Offline-tested on a captured real fixture; endpoint to fully live-verify like every connector except eBay.
Store Leads (Shopify technographics) Resuelve hasta paísÁmbar De pago paid (~$250/mo Pro tier for API)Leída hoyStore-count by niche/geo = market sizing. The compliant Shopify answer. API access is the Pro tier, not entry-level.
Apple App Store customer-reviews RSS Rojo — RechazadaKeyless and it answers 200, which is exactly the trap. Apple Media Services Terms: a user 'may not use any software, device, automated process … to scrape, copy, or perform measurement, analysis, or monitoring of, any portion of the Content or Services' — measurement is the one word that names what a demand read does. Researched 2026-08-06 (G1 source 4); liveness is not a licence. Filed under commerce, next to the Shopify App-Store row, because it is a store surface, though the use we wanted was demand-side review-pain for the mobile-app idea class. No free legal twin exists: both stores keep competitive review APIs owner-only and the third parties are paid resellers, so that class gets Stack Exchange plus search intent, and is told review-pain is absent rather than left to assume it was covered.
Shopify App-Store scrape Rojo — RechazadaToS-hostile + Cloudflare-blocked. Use Store Leads instead.

Hiperlocal — lectura sobre el terreno

FuenteVeredictoCosteEstadoPor qué
Census demographics (ACS / INSEE IRIS / StatCan / DANE) Resuelve hasta barrioVerde Clave requerida free (key required)Leída hoyNeighborhood demographic fit. US ACS wired (key now required for all queries); INSEE/StatCan/DANE per-market to add.
POI density (OSM Nominatim + Overpass) Resuelve hasta direcciónVerde Gratis free (1 req/s, UA required)Leída hoyAddress-level competition. Respect OSM usage policy (no bulk grid scraping) or self-host.
Google Places / Yelp Resuelve hasta direcciónÁmbar De pago paid (billing enabled; the $200 credit was retired Mar 2025)Leída hoy

Marca & dominio

FuenteVeredictoCosteEstadoPor qué
Cloudflare Radar (domain popularity/collision) Resuelve hasta todo el mundoVerde Clave requerida free (token)Leída hoyDomain rank = namespace-collision signal; Radar API needs a Cloudflare token.
RDAP (domain availability) Resuelve hasta todo el mundoVerde Gratis Leída hoyReal availability (404=free, 200=taken); never claims a domain is free.
Registrar (Porkbun / Cloudflare / Name.com) Resuelve hasta todo el mundoÁmbar De pago registration at costLeída hoyFirst-year price + availability. Porkbun API is POST-only + needs key & secret.