helios website screenshot

helios

helios is a French sustainable-banking company (HELIOS SAS, Paris) offering current, Premium, joint, youth, Liberté and independent/professional accounts, a green savings passbook, sustainable life insurance and wooden or recycled-plastic Visa cards through iOS, Android and web. It is a société à mission and a certified B Corp whose promise is that no customer euro finances fossil fuels or polluting industry, and it publishes the list of transition projects it funds. helios is registered in REGAFI under 731225 as a payment services agent of OKALI, the ACPR-approved electronic money institution that services the accounts. It publishes no public API, SDK, webhook or developer portal; the one machine-readable document it serves is an llms.txt AI-usage policy.

helios is profiled on the APIs.io network. Tagged areas include Company, Banking, Fintech, Neobank, and Sustainable Finance.

helios’ developer surface includes engineering blog, support, signup flow, pricing, and 9 more developer resources.

18.4/100 emerging ▬ flat Agent 3/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
0 APIs
CompanyBankingFintechNeobankSustainable FinancePaymentsClimate TechFrance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/helios: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Pricing Plans 1

Published pricing tiers and plan structures.

Helios Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Helios Rate Limits

0 limits

RATE LIMITS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Helios Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Access & Security 1

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: helios
name: helios
description: helios is a French sustainable-banking company (HELIOS SAS, Paris) offering current, Premium, joint, youth, Liberté
  and independent/professional accounts, a green savings passbook, sustainable life insurance and wooden or recycled-plastic
  Visa cards through iOS, Android and web. It is a société à mission and a certified B Corp whose promise is that no customer
  euro finances fossil fuels or polluting industry, and it publishes the list of transition projects it funds. helios is registered
  in REGAFI under 731225 as a payment services agent of OKALI, the ACPR-approved electronic money institution that services
  the accounts. It publishes no public API, SDK, webhook or developer portal; the one machine-readable document it serves
  is an llms.txt AI-usage policy.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://a.storyblok.com/f/279083/1200x630/38722f8a58/meta-image.png
url: https://raw.githubusercontent.com/api-evangelist/helios/refs/heads/main/apis.yml
x-type: company
x-source: serena-portfolio
x-tier: profiled
x-tier-reason: no-api-surface
specificationVersion: '0.23'
created: '2026-08-17'
modified: '2026-08-17'
tags:
- Company
- Banking
- Fintech
- Neobank
- Sustainable Finance
- Payments
- Climate Tech
- France
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.helios.do/
- type: Blog
  url: https://blog.helios.do/
- type: HelpCenter
  url: https://intercom.help/heliosdo/fr/
- type: Support
  url: https://www.helios.do/contact/
- type: SignUp
  url: https://www.helios.do/inscription/
- type: Pricing
  url: https://www.helios.do/documents/conditions_tarifaires.pdf
- type: TermsOfService
  url: https://www.helios.do/documents/Conditions_Generales_Helios.pdf
- type: PrivacyPolicy
  url: https://www.helios.do/documents/Politique_De_Confidentialite.pdf
- type: LLMsTxt
  url: llms/helios-llms.txt
- type: Conformance
  url: conformance/helios-conformance.yml
- type: Plans
  url: plans/helios-plans-pricing.yml
- type: RateLimits
  url: rate-limits/helios-rate-limits.yml
- type: DomainSecurity
  url: security/helios-domain-security.yml
x-enrichment:
  date: '2026-08-17'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: helios is a consumer neobank that ships only an end-user mobile and web banking app — it publishes no developer
    portal, API reference, SDK or webhook surface, and as a payment services agent of OKALI (REGAFI 731225) it exposes no
    PSD2 dedicated interface of its own; /openapi.json, /graphql, /mcp, /api and every /.well-known/ path return a real 404
    on www.helios.do (a nonsense control path also 404s, so these are not soft-404s), and certificate-transparency enumeration
    of *.helios.do lists app, backoffice, blog, email, go, help and meta but no api.* host of any kind.
  evidence:
  - url: https://www.helios.do/openapi.json
    status: 404
  - url: https://www.helios.do/.well-known/agent-card.json
    status: 404
  - url: https://www.helios.do/api
    status: 404
  - url: https://www.helios.do/llms.txt
    status: 200
  checked: '2026-08-17'

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this
  • find_providersBrowse and filter every provider in the catalog.
  • get_provider_artifactsEvery artifact this provider publishes, grouped by type.
  • get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
  • get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This provider
curl "https://apis.io/api/v1/providers/helios"
All providers
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose
curl "https://apis.io/api/v1/providers/helios/operations?limit=25"
How their score was established
curl "https://apis.io/api/v1/providers/helios/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.