Danelfin logo
Trading · Financial Analysis

Danelfin

Danelfin is an AI stock analytics platform that scores US and European stocks and ETFs from 1 to 10, estimating each one's probability of beating the market over the next three months using explainable alpha signals.

Active GDPR compliant Free plan · Free trial Freemium API available Verified by Guidaio
Overview

What is Danelfin?

Danelfin is an AI-powered stock analytics platform built by Danelfin Technologies, S.L., a company founded in Barcelona and now operating from Spain and New York. Its central output is the AI Score, a rating from 1 to 10 that expresses the probability of a stock or ETF beating its benchmark over the following three months, measured against the S&P 500 TR for US-listed securities and the STOXX Europe 600 for European shares.

Coverage spans every US-listed stock, the European main market with more than 5,500 shares after a recent expansion, and US-listed ETFs; the MCP documentation cites over 15,000 instruments in total. Each day the system processes more than 900 indicators per security, of which over 600 are technical, 150 fundamental and 150 sentiment, turning them into more than 10,000 daily features. The company says over 5 billion features have been used to train the models.

The method is published rather than hinted at. A rolling learning window of 252 market days for the United States and 500 for Europe identifies the features that generated the most alpha after 60 market days. Those alpha signals are then combined across hundreds of decision trees, and the final score is the average probability returned by all of them. Danelfin calls this explainable AI: the signals behind every score are displayed and ordered by relevance, green when positive and red when negative.

Around the score sit fundamental, technical, sentiment and Low Risk subscores, daily score histories, AI price forecasts at one, three and six months, suggested trading parameters, stock comparisons, and rankings by sector, industry and investment theme. Trade Ideas highlight long and short setups where the model has been right at least 60 percent of the time since 2017. Portfolios add an average AI Score, a diversity score, daily upgrade and downgrade alerts, and automatic syncing with US broker accounts.

The product ships as a web application, a JSON REST API and an MCP server for Claude Code and Cursor, with an interface in seven languages. Throughout, the company insists its scores are probabilities rather than certainties, and no replacement for professional advice.

What it does

  • Rate any US or European stock, or any US-listed ETF, with an AI Score from 1 to 10
  • Rank whole markets, sectors, industries and investment themes by that score
  • Break a score down into fundamental, technical, sentiment and Low Risk subscores
  • Show the alpha signals behind each score, ranked by relevance and flagged positive or negative
  • Track the daily score history of a holding and receive upgrade or downgrade alerts
  • Surface long and short Trade Ideas with their win rate since 2017
  • Deliver the same scores through a JSON API or an MCP server inside an AI assistant
Audience

When to use Danelfin / When not to

A quick filter to help you decide if Danelfin is the right fit.

When to use Danelfin

  • Self-directed retail investors who choose their own stocks and want a daily quantitative signal rather than a tip list
  • Investors working on a three-month horizon, which is the exact window the AI Score is calibrated for
  • People who already hold a portfolio and want an average score, a diversity score and daily upgrade or downgrade alerts
  • Quantitative researchers and analysts who need daily scores plus the full history back to 2017 through a JSON API
  • Developers and AI assistant users who want market data inside Claude Code or Cursor through the MCP server

When not to use Danelfin

  • Anyone looking for personalised investment advice: Danelfin repeats on every page that its scores are not a substitute for professional guidance
  • Traders who need execution, since the platform places no orders and broker syncing is read-only
  • Investors focused on crypto, forex, bonds or commodities, none of which are covered
  • Strict buy-and-hold investors with a ten-year horizon, given that the score is built for three months
  • Teams that need formal compliance paperwork, as no DPA, subprocessor list or security certification is published
Get started

How to use Danelfin

A typical end-to-end flow, from setup to results.

  1. Open a free account from the pricing page; no credit card is required
  2. Search for a stock, an ETF or an investment theme from the search bar on the home page
  3. Read the AI Score and its four subscores on the security page
  4. Open the score explanation panel to see the alpha signals that produced the rating
  5. Browse the rankings for US stocks, European stocks, ETFs, sectors, industries and themes
  6. Check the long and short Trade Ideas and their historical win rate
  7. Create a portfolio, add your holdings or sync a US broker account automatically
  8. Turn on the daily upgrade and downgrade alerts and the top ten stocks newsletter
  9. For machine access, buy an API plan and receive your key by email, then call the endpoints and read the JSON responses
  10. For an AI assistant, claim a free API key and add the MCP server with a single terminal command, then ask questions in plain language
Quick read

Pros & Cons

Pros

  • Explainable by design: the signals behind each score are shown, which is uncommon in this segment
  • The method is documented in detail, from indicator counts to learning windows and decision trees
  • Backtests are published with their universe, date range, number of trading days and sample size
  • A permanent free plan with no credit card, a 14-day trial and a 30-day money-back guarantee
  • Broad coverage across US stocks, European main market shares and US-listed ETFs
  • Full machine access through a documented JSON API and a ready-made MCP server
  • European publisher with hosting declared in Spain, a named DPO and an interface in seven languages

Cons

  • The headline performance figures come from backtests, which the site itself says do not predict future results
  • No iOS or Android application
  • No DPA, no subprocessor list and no security certification such as SOC 2 or ISO 27001
  • Data retention is described only in open-ended legal terms, with no stated duration
  • Prices are quoted in US dollars although the publisher is Spanish, adding currency and VAT friction for European buyers
  • Claimed audience differs between pages, from 150,000 investors on the home page to 100,000 on the pricing pages
  • Portfolio syncing is limited to US brokers, and the score is calibrated for a single three-month horizon
Pricing

Pricing & Plans

Danelfin operates on a freemium basis. A permanent Free plan is available at 0 USD with no credit card required. The cheapest paid tier is Plus at 29.00 USD per month on monthly billing, falling to 22 USD per month on an annual commitment. Annual billing carries a 25 percent discount and the two-year commitment a 40 percent discount. Paid website plans include a 14-day free trial and a 30-day money-back guarantee. API-only plans are priced separately, starting at 52 USD per month. Payments are handled by Stripe.

Free — 0 USD forever
  • daily top ten stocks newsletter
  • 10 stock or ETF reports per month
  • top ten of each ranking
  • one portfolio of five holdings
  • limited score explainability and the top two long Trade Ideas
Pro — 79 USD per month, or 59 USD per month billed annually
  • everything in Plus plus trading parameters for Buy and Hold ratings
  • CSV export
  • ten portfolios of fifty holdings
  • complete fundamental
  • technical and sentiment alpha signals and unlimited long Trade Ideas
Elite — 179 USD per month
  • everything in Pro plus unlimited short Trade Ideas
  • the API Expert tier at 10
  • 000 calls per month
  • unlimited portfolios and holdings
  • daily AI Score history since 2017 in CSV on request and priority support
API Basic — 52 USD per month or 624 USD per year
  • 1
  • 000 calls per month
  • 120 calls per minute
  • standard support
API Expert — 149 USD per month or 1,788 USD per year
  • 10
  • 000 calls per month
  • 240 calls per minute
  • standard support
API Elite — 449 USD per month or 5,388 USD per year
  • 100
  • 000 calls per month
  • 2
  • 400 calls per minute
  • priority support
Special offers — 25 percent discount on annual billing · 40 percent discount on the two-year commitment, promoted in a permanent site banner · 14-day free trial on the paid website plans · 30-day money-back guarantee from the creation date of a new subscription · Permanent free plan with no credit card required · Free API tier of 500 calls per month advertised on the MCP page · Affiliate programme paying 30 percent recurring for the lifetime of the customer, with a 45-day cookie
Prices and plans listed above may evolve. Always check the official pricing page before subscribing.
Trust & Privacy

Data, GDPR & hosting

A consolidated view of how Danelfin handles your data.

GDPR overview

The privacy policy is built explicitly on the GDPR and adds the Spanish LOPD (Organic Law 3/2018 of 5 December) and the LSSICE (Law 34/2002 of 11 July). A Data Protection Officer is designated and contactable at dpo@danelfin.com. The listed rights are access, rectification, erasure, objection, restriction in four enumerated situations, and portability in electronic format. Exercising them is free, although a copy of an identity document is required, and consent can be withdrawn at any time through the DPO. Users are told they may complain to the competent supervisory authority. The company is established in Spain, so no Article 27 representative applies. Two gaps are worth noting: no Data Processing Agreement is published and no subprocessor list is disclosed.

Who owns the data?

The data controller is Danelfin Technologies, S.L., registered at Via Augusta 200, 3rd Floor, 08021 Barcelona, Spain, with NIF B67228528 and entered in the Barcelona Mercantile Registry under volume 46481, folio 104, sheet B521422. A Data Protection Officer is named and reachable at dpo@danelfin.com. The privacy policy commits the company never to share personal data with anyone unless the law requires it or the user gives express consent. Users remain responsible for the accuracy of what they submit. On the product side, the API terms state that all rights in the API and in the scores and data it returns remain the exclusive property of Danelfin.

Reuse rights

Processing rests on consent, given when a visitor submits a form, opens an account, subscribes to a paid plan, registers for an event, sends a CV, signs up to a newsletter or downloads a document. Stated purposes are account communication, commercial notifications, answering enquiries, satisfaction surveys, user experience analysis through cookies, event management, recruitment, audience measurement from IP addresses, and segmentation or profiling, which the policy describes as having no significant effect on user rights. The categories handled include identifying data, academic and professional data, traffic and location data, electronic communications metadata, commercial data, and economic, financial and banking data. No special categories are collected. Card payments are processed by Stripe. On the output side, users may view, print, copy and store site content for strictly personal and private use; reproduction, distribution or public communication for commercial purposes is expressly prohibited without authorisation, and API subscribers may not redistribute, resell or sublicense any data or scores obtained through the API. Nothing in the documents states that customer data is used to train the models.

Data retention & training

Retention summary
No fixed retention period is published. The privacy policy says personal data is kept for as long as necessary for Danelfin Technologies, S.L. to meet its legal and regulatory obligations, within the limitation periods established by law. The company states that it reviews those retention periods regularly and automatically deletes data that has become obsolete or out of date, and it lists storage limitation among the principles it applies, promising to tell users how long data is kept depending on the purpose. Users can ask for erasure under the right to be forgotten by contacting the Data Protection Officer at dpo@danelfin.com, free of charge, subject to providing proof of identity.
GDPR contact

Hosting summary

The terms of use name the web host as OVH Hispano SLU, at Calle Alcala 21, 5th floor, 28014 Madrid, Spain, reachable at support@ovh.es. That places hosting inside Spain, and therefore inside the European Union, under the same jurisdiction as the publisher: Danelfin Technologies, S.L. is registered in Barcelona and the terms state that the relationship is governed by Spanish law, with disputes settled by the competent Spanish courts. The API terms repeat this, applying Spanish law and Spanish courts. No other hosting country or region is mentioned anywhere on the site, and no broad region such as the EU is named as such. Data in transit is protected by an SSL certificate, and the company acknowledges it cannot guarantee absolute security while committing to notify users of any incident it becomes aware of. Beyond Stripe, which is identified as the payment processor, no third-party processor is named and no subprocessor list is published.

Hosting countries
🇪🇸 Spain
Watch-outs

Things to keep in mind

Risks and trade-offs to weigh before adopting Danelfin.

  • Backtested returns are persuasive precisely because they are retrospective; treating them as a forecast is the most likely way to lose money with this tool
  • A single number from 1 to 10 invites over-confidence and can quietly replace the user's own research rather than complement it
  • Daily scores and upgrade or downgrade alerts encourage frequent checking and over-trading, which erodes returns through costs and emotional decisions
  • The score is calibrated for a three-month horizon only; applying it to a different time frame silently breaks the assumption it rests on
  • Subscriptions renew automatically at the end of every monthly, annual or two-year cycle, so cancellation must be deliberate
  • Prices are billed in US dollars by a Spanish company, exposing European buyers to currency movement and tax treatment they may not expect
  • No published DPA, subprocessor list or security certification, and no stated retention period, which matters if you connect a broker account
Setup

Setup & Integrations

Technical difficulty

Very low for the web platform: an account is free, needs no card and requires no installation or configuration to read scores and rankings, and broker syncing is automatic. The API is only slightly harder, since buying a plan sends the key by email and the endpoints return plain JSON. Even the MCP server is designed to avoid setup, with no SDK, no configuration file and no restart: a single terminal command registers it inside Claude Code or Cursor.

Deployment

Web appAPI

Integrations

Claude Code Cursor Stripe

Supported languages

EnglishSpanishGermanFrenchItalianPortuguesePolish
Company

Behind Danelfin

Company name
Danelfin Technologies, S.L.
Founded
14/09/2021
Country of origin
🇪🇸 Spain
Headquarters
Via Augusta 200, 3rd Floor, 08021, Barcelona, Spain
US office
655 3rd Avenue, Suite 1830, New York, USA
UBO
INFORMATION_NOT_FOUND
UBO country
INFORMATION_NOT_FOUND
Domain registrar country
🇺🇸 United States
Legal contact
Support contact

Fundraising

12 June 2024: 2,000,000 EUR raised in a round led by Nauta Capital, a pan-European venture capital firm with offices in London and Barcelona, with participation from existing investors
At the time of that announcement the company reported 60,000 registered investors across 50 countries, and described its growth as largely organic through SEO and virality
No other funding round has been identified

Social

Official links

Resources

All the official URLs gathered for verification and reference.

FAQ

Frequently asked questions

What exactly is the AI Score?
It is a rating from 1 to 10 that expresses the probability of a stock or ETF beating its benchmark over the next three months. The benchmark is the S&P 500 TR for US-listed securities and the STOXX Europe 600 for European shares.
Which markets does Danelfin cover?
All US-listed stocks, the European main market with more than 5,500 shares, and US-listed ETFs. Crypto, forex, bonds and commodities are not covered.
Is there a free plan and a free trial?
Both. The Free plan costs nothing permanently and requires no credit card, and the paid tiers come with a 14-day free trial. A 30-day money-back guarantee applies from the creation date of a new subscription.
How much does the cheapest paid plan cost?
Plus is 29 USD per month on monthly billing, or 22 USD per month with an annual commitment. Annual billing saves 25 percent and a two-year commitment saves 40 percent.
How do I cancel a subscription?
From the Subscriptions and Billing section of the user menu, or by emailing support@danelfin.com. Access to paid features continues until the end of the billing period, after which the account reverts to the Free plan.
Is there an API, and can I use it from an AI assistant?
Yes to both. Three API tiers return JSON, with the key sent by email on purchase and documentation at the /docs/api page. An MCP server also exposes the scores to Claude Code, Cursor and any MCP client, added with a single terminal command.
Is Danelfin investment advice?
No. The company states repeatedly that its AI calculates probabilities rather than certainties and that its scores cannot substitute for professional investment advice or independent research.
Where is my data hosted and who handles GDPR requests?
Hosting is declared with OVH Hispano SLU in Madrid, Spain. A Data Protection Officer handles privacy requests at dpo@danelfin.com.
Is there a mobile app?
No iOS or Android application was found. Danelfin is delivered as a web application, an API and an MCP server.
Which languages is the interface available in?
Seven: English, Spanish, German, French, Italian, Portuguese and Polish.
Conclusion

Should you pick Danelfin?

Danelfin occupies a clear and fairly unusual position: daily, quantitative, explainable scoring aimed at people who pick their own stocks. What sets it apart is less the promise than the disclosure. The indicator counts, the rolling learning windows, the decision-tree ensemble and the backtest parameters are all published, complete with universes, date ranges and sample sizes, and every score can be opened up to show the alpha signals that produced it. For an audience used to opaque ratings, that transparency is the main argument.

The caveats are equally clear, and several come from the company itself. The headline returns are backtested, and backtested performance does not predict future results. The AI Score is a probability over one specific horizon of three months, not a recommendation, and the platform executes nothing. Coverage stops at US and European equities and US-listed ETFs. On the compliance side the documentation is thin for a financial product: no Data Processing Agreement, no subprocessor list, no security certification, and a retention policy expressed only in open-ended legal language. Claimed user numbers also vary from one page to another, which invites some caution about the marketing figures generally.

Commercially the offer is straightforward. A permanent free plan lets anyone test the scores without a card, the paid entry point is 29 USD per month, annual and two-year commitments cut 25 and 40 percent, and a 14-day trial plus a 30-day money-back guarantee limit the downside. Machine access is unusually complete for this price range, with a documented JSON API and a ready-made MCP server for Claude Code and Cursor.

In short, a well-documented research instrument for self-directed investors on a three-month horizon, best treated as one input among several rather than as a verdict.