Every European eSignature API tool reviewed
Caen, France
Founded 2013
API Plus €104/month (€1,248/year), API Pro €129/month (€1,548/year), both 500 simple signatures a year; €2 per signature over quota
Free 40-day sandbox, no card, sandbox signatures do not count against quota
Best for: Teams that want to read the price, get a key and ship this week
Youtrust is the only provider in this category you can evaluate without talking to anyone.
The API pricing page lists Plus at €104 a month and Pro at €129 a month, each with 500 simple signatures a year and €2 for every signature above quota; the sandbox is free for 40 days, needs no card, and signatures sent through it do not count against the quota.
The documentation names the version — Public API v3 — publishes an OpenAPI description, and ships an llms.txt index, which is the first time a signature vendor in this directory has built for machine consumption of its own docs.
The company is Youtrust SAS in Caen, founded in 2013, a certified B Corp since 2024, with over 30,000 customers and more than 200 staff.
It was Yousign until the 2026 rebrand, which the company describes as a widening from electronic signature into signing, identity verification and sealing; the entity, contracts and pricing carried over unchanged. The subprocessor register is the most specific in this category: AWS, Microsoft Azure and OVH for infrastructure, all hosting in France, Arkhineo in France for archiving, Netheos and Ubble in France for identity checks, and Swisscom in Switzerland as the certificate authority for qualified signatures.
That register is also where the honest caveat lives. Two American hyperscalers sit under a French company, in French regions. For most buyers that is a better answer than a US-established vendor with European hosting, because the contracting party is what the CLOUD Act reaches. For a buyer whose procurement rules go one layer deeper, sproof is the provider in this category that answers it differently.
What Youtrust does well
- The only API here with published prices, a versioned public API and a 40-day free sandbox all at once
- OpenAPI description and an llms.txt index, so the docs are machine-readable
- Subprocessor register names each provider and the country it hosts in
- API and webhook logs on the Pro plan, which turns callback debugging into self-service
- French company, B Corp certified, 30,000 customers — not a project that disappears next year
Where Youtrust falls short
- AWS and Microsoft Azure sit under the French company, even though both host in France
- The API plans include simple signatures; qualified signatures depend on Swisscom as a third party
- Overage at €2 a signature is expensive if your volume is spiky rather than steady
- The Yousign-to-Youtrust rebrand means older integration guides and blog posts still carry the old name
Standout feature. You can price the integration, read the OpenAPI spec and have a sandbox key before lunch, without a sales call. Nothing else in this category lets you do all three.
Vilnius, Lithuania
Not published; pricing documents on request
Sandbox at developers.dokobit.com, access token issued on request
Best for: Applications whose signers already carry a national eID
Dokobit solves a problem DocuSign does not solve well: signing with the electronic identity a citizen already has.
One integration reaches Lithuania, Latvia, Estonia, Finland, Iceland, Poland and Belgium, through national ID cards, smart cards, USB tokens, Mobile ID, Smart-ID, Smart-ID+, eParaksts mobile, the Audkenni app and Estonian e-Residency. It handles the document formats those jurisdictions actually use — PDF, ASiC-E, BDoc, EDoc, ADoc — with qualified timestamps, which is a list most international signing products do not recognise, let alone produce.
The developer surface is unusually well separated. Documents Gateway is a pre-built embeddable interface with a viewer, batch and sequential signing, and documents held for up to 30 days during the signing period.
Documents API is the raw route: you build the interface, and the document is processed only for the duration of the signing action, up to 300 seconds, before returning to your system.
If data residency is the reason you are reading this page, that second option means the document barely rests on Dokobit's infrastructure at all. Sandbox and live run on separate hosts, and the reference publishes error codes, test certificates and examples in .NET C#, Java and PHP.
Dokobit, UAB is a Lithuanian company, legal entity code 301549834, at Paupio 50-136 in Vilnius, and the portal is now powered by Signicat, the Norwegian identity group. Pricing is not published — the site offers downloadable pricing documents and a sandbox token on request — which is the main thing separating it from the top of this list.
What Dokobit does well
- Seven countries of national eID coverage from a single integration
- Handles ASiC-E, BDoc, EDoc and ADoc, not only PDF
- The raw Documents API holds a document for at most 300 seconds
- Separate sandbox and live hosts, with test certificates and code examples published
- Lithuanian entity with the registration number stated in the terms
Where Dokobit falls short
- No published pricing; both prices and the sandbox token come via sales
- eID coverage is Baltic, Nordic and Central European — not Southern or Western Europe
- Data residency is not stated anywhere public, only implied by the processing model
- Now part of Signicat, so the roadmap sits with a larger group rather than the Vilnius team
Standout feature. The Documents API processes a document for up to 300 seconds and hands it straight back. That is the shortest custody window in this category, and it turns a residency question into a non-question.
Glasgow, United Kingdom
Pay as you go £1.50 per sent document; Solo Basic £10/month, Solo Pro £25/month, Team £15/user/month for 2–5 users, all ex VAT
14-day trial, no card required
Best for: Low-volume integrations that should not carry a four-figure annual subscription
Legalesign is the only provider in this category that puts API access on every plan, including pay-as-you-go at £1.50 per sent document with no subscription at all.
For an application that sends a few hundred agreements a year — a small SaaS, an internal tool, a seasonal process — that single decision makes it the cheapest option here by a factor of several. A hundred documents costs £150. On Youtrust, Autenti or SIGN.PLUS the same hundred documents sits inside a subscription of roughly €900 to €1,260 a year.
The paid tiers are Solo Basic at £10 a month, Solo Pro at £25 a month and Team at £15 per user per month for two to five users, all excluding VAT, with a fourteen-day trial that needs no card. Qualified electronic signatures, witnesses, automation and bulk sending appear from Solo Pro upwards; SSO and dedicated support sit at enterprise level. The API documentation is public at apidocs.legalesign.com and the company publishes code on GitHub.
The jurisdiction needs stating precisely. Legalesign Limited is incorporated in Scotland under company number SC425013 with a registered office at 1 George Square, Glasgow. That is the United Kingdom, outside the EU since Brexit, operating under UK GDPR with an adequacy decision rather than membership. The terms commit to EEA processing by default and require written consent for transfers beyond it — but Amazon Web Services, Inc. is named as a subprocessor, so a US provider is in the chain.
What Legalesign does well
- API access on every plan, including £1.50 pay-as-you-go with no subscription
- The cheapest option in this category below roughly 700 documents a year
- Public API documentation and a GitHub presence
- 14-day trial with no card, which functions as a real API evaluation
- Qualified electronic signatures available from the £25 Solo Pro tier
Where Legalesign falls short
- UK rather than EU, so buyers whose requirement is EU establishment are excluded
- Amazon Web Services, Inc. named as a subprocessor
- No certifications such as ISO 27001 stated on the public pages
- Per-document pricing stops being competitive at a few thousand documents a year
- Smaller company than the Nordic and French providers, with correspondingly less procurement paperwork ready
Standout feature. API access on the pay-as-you-go plan. Every other provider here treats the API as a reason to move you to a higher tier; Legalesign treats it as a feature of the product.
Copenhagen, Denmark
Founded 2014
API on Sign Pro (custom) and Collect Pro DKK 999/month billed annually; Sign Essential DKK 899 and Sign Plus DKK 1,250 a month include 500 signatures a year
Free sandbox with full access, no commitment
Best for: Regulated Danish and Nordic workflows where the signer has MitID
Penneo was founded in Copenhagen in 2014 by six Danish entrepreneurs and has stayed close to the accountancy, legal and financial firms that were its first customers.
The API reflects that: it is built around casefiles rather than single documents, so one request can submit a whole case with multiple documents and multiple signers, trigger forms, file uploads and eID verification automatically, and return the signed files and collected data when the case completes. For an audit engagement or a client onboarding, that is the right unit of work, and it is a noticeably better fit than the envelope model the American products use.
It is REST with OAuth authentication, JSON and multipart uploads, webhooks at every event so there is no polling, and a free sandbox with full access and no commitment. Penneo A/S, CVR 35633766, is at Gærtorvet 1-5 in Copenhagen; it describes itself as QTSP certified and commits to 99.99% uptime. Signing uses national eIDs — MitID, BankID and others — which for a Danish signer removes the identity step entirely.
Two things constrain it. API access is on the Sign Pro tier, which is custom priced, and on Collect Pro at DKK 999 a month; the published Sign Essential at DKK 899 and Sign Plus at DKK 1,250 a month include 500 signatures a year but the API only appears from Plus upwards, so the entry tier is not an integration tier.
And the infrastructure is Amazon Web Service with data hosting in the EU, stated plainly in the privacy policy — a Danish company on an American cloud.
What Penneo does well
- Casefile model submits multiple documents and signers in one request
- Webhooks at every event, explicitly instead of polling
- Free sandbox with full access and no commitment
- National eID signing with MitID and BankID, so Danish signers skip identity checks
- Danish A/S with CVR number, QTSP certified, 99.99% uptime commitment
Where Penneo falls short
- Runs on Amazon Web Services, so a US provider sits under the Danish company
- API is not on the entry Sign Essential tier; Sign Pro is quote-only
- Prices are in Danish kroner, which adds an FX line for everyone else
- Strongest in the Nordics; thinner eID coverage outside it
Standout feature. The casefile, not the envelope. One API call submits an entire engagement with its documents, forms and identity checks, which is how regulated work is actually shaped.
Stockholm, Sweden
Founded 2010
eSign API is a customised solution, quote only
Free 30-day API testbed account
Best for: Nordic eID signing at volume, once you have had the pricing conversation
Scrive has been in Stockholm since 2010, processes more than 100 million transactions a year and serves customers in over 80 countries, which makes it one of the most established companies in this directory.
The eSign API covers the things volume users need and smaller products skip: bundled document signing so several documents go out as one request rather than several, signing groups where you can require one signature from a group, a specific number, or all of them in sequence, and advanced authentication for KYC and identity verification.
The structure is unusual and worth knowing. Scrive AB, organisation number 556816-6804, at Grev Turegatan 11A in Stockholm is the company; Scrive AS in Oslo is a qualified trust service provider in its own right, for Scrive Certified Trust Services. Owning the QTSP rather than renting one removes a dependency that most of this category carries — and it is the same reason Scrive can be specific about evidence packages and e-archive.
The hosting answer is two answers, and Scrive publishes both. The standard platform runs on AWS. Scrive EC is hosted by an EU-based provider instead, for customers who need that.
The privacy notice states all data hosting geolocations are within the EU/EEA, while acknowledging that with a global cloud provider, personal data can in exceptional circumstances be accessed from outside the EEA for support purposes. That is a more candid sentence than most vendors in this category will write, and it is the reason to look at Scrive EC rather than the default.
What Scrive does well
- Signing groups: require one, several or all signatures, in sequence
- Bundled documents in a single request rather than one call per file
- Owns its QTSP through Scrive AS in Oslo rather than renting one
- Scrive EC is an explicit non-AWS option on an EU-based provider
- Free 30-day API testbed account, and fifteen years of operating history
Where Scrive falls short
- eSign API pricing is quote-only — a customised solution with no published rate
- The standard platform runs on AWS unless you specifically take Scrive EC
- The privacy notice admits support access from outside the EEA in exceptional circumstances
- Support hours are stated as Monday to Friday, 9 to 16 CET
- Strongest in the Nordics; less compelling for Southern European eID coverage
Standout feature. Scrive EC exists. A vendor that offers a named non-hyperscaler platform alongside its AWS default has taken the sovereignty question seriously enough to build a second answer.
Zurich, Switzerland
API integration from Pro at €36/user/month (€432 a year per user); Starter is free and pay-per-use at €1 per SES, €3 per AES, €5 per QES
14 days of Pro features with unlimited users, no card
Best for: Contracts that must be qualified under both eIDAS and Swiss ZertES
Skribble is the answer when a signature has to hold in Zurich and in Frankfurt at the same time. It delivers qualified electronic signatures under the Swiss ZertES and under eIDAS, hosts everything in two geo-redundant Tier IV data centres in Switzerland, and holds ISO 27001 and ISO 9001 with FINMA compliance on top — which is the specific combination Swiss banks and insurers ask for and almost nothing else in this category can produce.
The pricing is the most transparent per-signature schedule here. The Starter plan is free and pay-per-use: €1 per simple signature, €3 per advanced, €5 per qualified.
Team is €23 per user per month billed yearly for up to 20 users with 72 advanced or qualified signatures included; Pro is €36 per user per month with 120 included. API integration starts at Pro, so an integration costs €432 per user per year before any signature is bought — which is the single biggest reason Skribble sits mid-table in an API ranking while ranking higher on the application side.
The entity structure matters for EU buyers. Skribble AG is at Talacker 21 in Zurich, registered in the commercial register of the Canton of Zurich as CH-020.3.045.842-4; Skribble Deutschland GmbH is in Karlsruhe, HRB 734477.
A German contracting entity exists, but the hosting stays Swiss. Switzerland has an EU adequacy decision, so the transfer is lawful without extra safeguards — but it is a transfer, and a requirement written as "data must remain within the European Union" is not met by any amount of Swiss security.
What Skribble does well
- Qualified signatures under both eIDAS and ZertES from one product
- ISO 27001, ISO 9001 and FINMA compliance, with annual penetration tests
- Two geo-redundant Tier IV data centres in Switzerland, no hyperscaler named
- Per-signature prices published: €1 SES, €3 AES, €5 QES on the free Starter plan
- German GmbH in Karlsruhe available as the contracting entity
Where Skribble falls short
- API integration requires the Pro plan at €36 per user per month — €432 a year per user before any signature
- Hosting is Swiss, not EU, so a strict "inside the Union" requirement fails
- No separate developer sandbox environment published
- Team and Pro are capped at 20 users; beyond that it is the quote-only Scale tier
- Included signature allowances (72 and 120 a year) are small for an integration
Standout feature. Two legal frameworks, one signature. Skribble is the only provider here that delivers qualified signatures valid under both eIDAS and ZertES, which is the whole product for a cross-border Swiss business.
Puch bei Hallein, Salzburg, Austria
API on the Enterprise tier only, custom priced; Single €15/month and Team €170/month (annual, ex VAT) exclude it
14 days on Single and Team; Enterprise trial on request
Best for: Buyers whose procurement rule reaches the subprocessor, not just the vendor
sproof makes the claim the rest of this category hedges: 100% developed in Europe, operated in European data centres, no dependencies on US services, no CLOUD Act risk — and it extends that claim explicitly to subcontractors. For a public body or a regulated buyer whose rules go past the contracting party and into the chain, that sentence is the entire procurement argument, and Youtrust, Penneo, Scrive and Legalesign all fail it because each names AWS somewhere.
sproof GmbH is registered at Urstein Süd 19/2 in Puch bei Hallein near Salzburg, FN 520262t at the Landesgericht Salzburg, with a second office in Vienna. The compliance list is long and specific: ISO 27001, eIDAS, ZertES, GDPR, FDA and DORA. The REST API is aimed at deep integration into SAP, Salesforce and Microsoft 365, with an e-ID Hub for identity, and documentation at docs.sproof.com.
The pricing is where the ranking is decided. Single is €15 a month and Team €170 a month on annual billing excluding VAT — and neither includes API access. The API appears only on the Enterprise tier, which is individually priced.
So the published prices tell a developer nothing, a fourteen-day trial on the tiers that do not have the API tells them not much more, and the honest summary is that sproof is the strongest sovereignty story here behind the least accessible commercial door. The other gap: the EU-only claim does not name the data centre operator, so it has to be taken on the vendor's word.
What sproof does well
- States EU-only infrastructure with no US services and no CLOUD Act dependency, extended to subcontractors
- ISO 27001 alongside eIDAS, ZertES, GDPR, FDA and DORA compliance
- Austrian GmbH with the register number and court stated in the imprint
- REST API built for SAP, Salesforce and Microsoft 365 integration
- A free private plan exists for individuals, separate from the paid tiers
Where sproof falls short
- API access is on the Enterprise tier only; the published €15 and €170 plans exclude it
- No API pricing published at all, so the integration cost is unknown until you call
- The EU-only infrastructure claim does not name the hosting provider
- No self-service developer sandbox
- Smaller eID coverage than Dokobit or Scrive outside the German-speaking market
Standout feature. It is the only provider in this category that puts "no US subprocessors" in writing and extends it down the chain. Everyone else either names AWS or says nothing.
ul. Święty Marcin 29/8, Poznań, Poland
API Starter from €105/month on annual billing (€145 monthly), about €1,260 a year for roughly 100 documents a month; requires a PRO or PREMIUM platform plan underneath
Best for: Polish and Central European signing where documents are counted, not seats
Autenti is the Polish incumbent, serving over 16,000 companies with interface and support in Czech, German, Spanish, Polish and Slovak.
The eSign API is sold headless and per document rather than per seat: API Starter is from €105 a month on annual billing with a 25% discount, or €145 a month standard, covering an average of 100 documents a month and 1,200 a year, with overage charged above that. API Premium is quoted, with the cost per document falling as volume rises, and Enterprise exists for integrators and partners.
Autenti S.A. is at ul. Święty Marcin 29/8 in Poznań, KRS 0001254852, NIP 7831693251. The security position is properly documented: ISO/IEC 27001:2017 certified by TÜV NORD Poland in October 2023, business continuity management on ISO 22301:2020, compliance with eIDAS, GDPR and ETSI 319 401 and 319 521, and a statement that customer data is processed exclusively within the European Economic Area.
Two caveats belong at the front rather than the end. Autenti states plainly that its API packages are not intended for machine-to-machine applications or mass document signing — so an automated pipeline is out of scope by the vendor's own definition, which is candid and disqualifying in equal measure.
And the API package requires a PRO or PREMIUM platform plan underneath it, so €105 a month is a line on the invoice rather than the invoice. The EEA-only processing claim also stops short of naming a data centre or provider.
What Autenti does well
- Published API pricing from €105 a month, rare in this category
- Priced per document rather than per seat, with unit cost falling at volume
- ISO/IEC 27001:2017 from TÜV NORD Poland plus ISO 22301 business continuity
- Processing stated as exclusively within the EEA
- Polish S.A. with KRS and NIP numbers stated in the privacy policy
Where Autenti falls short
- Explicitly not intended for machine-to-machine use or mass document signing
- The API package requires a PRO or PREMIUM platform plan underneath it
- No free sandbox or trial published for the API
- EEA-only claim does not name the data centre or cloud provider
- Strongest in Poland and Central Europe; thinner elsewhere
Standout feature. The vendor tells you what the API is not for. "Not intended for M2M applications or mass document signing" is the most useful sentence on any pricing page in this category.
Paterna, Valencia, Spain
Not published; contact sales
Free trial offered, terms not published
Best for: Spanish integrations that need signatures, certificates and identity from one supplier
Signaturit sells three APIs rather than one: the Signaturit e-signature API for contract signing, the Ivnosys e-signature API for more customised signature workflows, and a certificate management API for administering a company's certificates centrally. That last one is the differentiator — managing corporate certificates programmatically is a Spanish administrative reality that most international signing products have no concept of, and it sits alongside identity verification, KYC, certified email and SMS, electronic notifications and legal archiving.
The corporate structure needs stating because it is not what the brand suggests. The legal notice names Ivnosys Soluciones, S.L.U., tax ID B-98333362, at Acceso Ademuz 12 in Paterna, Valencia, as the owner of the website.
Signaturit Group is a Namirial company — Italian — and the group also contains Validated ID SL in Barcelona, Universign/Cryptolog International and Vialink SAS, both in Puteaux near Paris. Four qualified trust service providers sit inside one group, which is why this directory lists Signaturit once rather than listing four brands with one owner.
The developer surface is documented at docs.signaturit.com with sample code and SDKs, and there is a free trial.
What is missing is what matters for an API ranking: no published pricing anywhere, no sandbox terms published, no statement of where data is hosted. The privacy policy says no international transfers are envisaged beyond those provided for in the data processors, which implies European hosting without confirming it. That combination of strong product and thin public disclosure is what places it here rather than higher.
What Signaturit does well
- Three APIs: two signature routes plus a certificate management API
- Certificate management solves a genuinely Spanish administrative problem
- SDKs and sample code published at docs.signaturit.com
- Backed by a group operating four qualified trust service providers
- Spanish S.L.U. with tax ID and registry entry stated in the legal notice
Where Signaturit falls short
- No published pricing of any kind
- Data residency not stated on any public page
- Sandbox and webhook support not documented publicly
- Owned through Signaturit Group by Namirial in Italy, so the roadmap is set elsewhere
- Brand and legal entity differ, which slows down a procurement check
Standout feature. The certificate management API. No other provider in this category treats a company's own certificates as something to administer over an API, and in Spain that is a weekly task rather than an edge case.
Reininghausstraße 3, Graz, Austria
MOXIS Now €22/month (€264/year), MOXIS Business €46/month (€552/year), both 500 documents a year; Enterprise on request. REST API is listed as optional on every tier
Best for: Enterprises that need the signing service inside their own data centre
MOXIS is the only product in this category with a documented on-premises option: the Enterprise tier runs in the client's own infrastructure, for example their own data centre, quoted on request with a three-year minimum term. For an organisation whose rule is that signed documents never leave the building, that is not one feature among many — it is the only product here that qualifies.
It is built by XiTrust Secure Technologies GmbH at Reininghausstraße 3 in Graz, FN 219152h at the Landesgericht für Zivilrechtssachen Graz, with subsidiaries in Mönchengladbach, Germany and Teufen, Switzerland.
The REST API exposes the core MOXIS functionality and all its modules independently of the user interface, with ready-made plug-ins for Office, file explorers, SAP, OpenText, Doxis and Salesforce, and an MCP connector that lets an AI assistant drive a signing process — an unusual thing to ship in 2026 and a genuinely forward-looking one.
The cloud pricing is published and cheap: MOXIS Now at €22 a month, MOXIS Business at €46 a month, both including 500 documents a year, with Business adding qualified signatures and qualified eID.
But the REST API is listed as optional on every tier without a published price, so the headline figures do not describe an integration. There is no free trial published, minimum terms are one year on the cloud tiers and three on Enterprise, and the minimum purchase is 500 documents a year or five users.
What MOXIS does well
- The only provider here with a documented on-premises deployment
- Published cloud pricing from €22 a month including 500 documents a year
- REST API exposes all modules independently of the user interface
- Plug-ins for SAP, OpenText, Doxis, Salesforce, Office and file explorers
- MCP connector for driving signing from an AI assistant
- Austrian GmbH with register number and court stated in the imprint
Where MOXIS falls short
- The REST API is an optional extra on every tier and its price is not published
- No free trial published anywhere
- One-year minimum on cloud tiers, three years on Enterprise
- Minimum purchase of 500 documents or five users a year
- No public statement of data residency or security certifications
Standout feature. On-premises. Every other provider in this category answers the sovereignty question by choosing a data centre; MOXIS answers it by letting you use yours.
Route de la Galaise 34, Plan-les-Ouates, Geneva, Switzerland
API Essential €75.99/month for 50 signature requests, Grow €279.99 for 200, Scale €659.99 for 600; annual billing saves up to 40%. Prices also shown in USD, CHF and GBP
Free sandbox key for testing with dummy data
Best for: Products that would rather pay a published per-request price than negotiate
SIGN.PLUS publishes its API tiers in full, which in this category is worth something: Essential at €75.99 a month for 50 signature requests and five templates, Grow at €279.99 for 200 requests and ten templates, Scale at €659.99 for 600 requests and unlimited templates, with annual billing saving up to 40% and prices selectable in EUR, USD, CHF or GBP.
A sandbox key is available for testing with dummy data before any of that. The arithmetic is easy to do and not especially flattering: Essential works out at roughly €1.52 per signature request, Grow at €1.40 and Scale at €1.10.
It is built by Alohi SA at Route de la Galaise 34 in Plan-les-Ouates, Geneva, alongside Fax.Plus, Scan.Plus and Dial.Plus, with Innosuisse backing. The privacy policy states plainly that the servers are located in Switzerland. All three eIDAS levels are supported — simple, advanced and qualified — with the legality pages covering eIDAS, ZertES and the US ESIGN Act, which suits a product signing across all three regimes.
Two limits define the shape. Webhooks are an Enterprise feature, so an Essential or Grow integration polls for status, which is a real architectural cost on a €75.99 plan. And payment processing runs through PayPal, Stripe, iTunes and Google Play, all in the United States, with the privacy policy noting that personal data may be transferred outside the EEA and Switzerland with appropriate safeguards. Documents stay in Switzerland; billing data does not.
What SIGN.PLUS does well
- Full API pricing published in EUR, USD, CHF and GBP
- Free sandbox key for testing with dummy data
- All three eIDAS levels, plus ZertES and ESIGN legality coverage
- Servers stated as located in Switzerland
- Swiss SA with a named address in Geneva
Where SIGN.PLUS falls short
- Webhooks are Enterprise only — the €75.99 and €279.99 tiers have to poll
- About €1.52 per signature request on Essential, the highest published unit price here
- Switzerland rather than the EU, so a strict EU-residency requirement is not met
- Payment processors are in the United States and data may leave the EEA for billing
- The e-signature product sits alongside fax and scanning apps rather than being the whole company
Standout feature. It publishes the whole price list in four currencies. For a team that needs a number in a budget line today, that is the difference between shipping and waiting for a call back.
Konradstrasse 12, Zurich, Switzerland
Not published; service packages for partners, SMEs and enterprises via sales
Best for: Platform builders who need to be the signing product rather than resell one
Swisscom Trust Services is the layer beneath several of the products on this page rather than a competitor to them.
It is a recognised trust service provider under the Swiss ZertES and, through its Austrian recognition, under eIDAS — meaning it issues the qualified certificates that turn a click into a signature with the legal weight of a pen. Youtrust names Swisscom in its own subprocessor register as the certificate authority for qualified signatures, which is the clearest possible evidence of where it sits in the stack.
The Smart Registration and Signing Service is an embedded e-signing platform delivering qualified and advanced electronic signatures for both the EU and Swiss jurisdictions, with a developer section, a repository and a published service status page.
Service packages are aimed at partners, SMEs and enterprises. Swisscom Trust Services Ltd is at Konradstrasse 12 in Zurich, UID CH-489.728.447, a subsidiary of Swisscom — a telecoms operator majority-owned by the Swiss Confederation, which is about as durable a counterparty as this market offers.
The trade-off is scope, and it is a large one. This is not a document workflow product. There is no envelope, no reminder emails, no template library, no audit interface for a non-technical user — all of that is yours to build.
It is the right choice when signing is the core of what you sell and you need to own the experience, and the wrong one when you want an API that sends a contract and chases the signer. Neither pricing nor a self-service sandbox is published, so the entry route is a sales conversation.
What Swisscom Trust Services does well
- A recognised trust service provider under ZertES and, via Austria, eIDAS — not a reseller
- Qualified and advanced signatures for both Swiss and EU jurisdictions from one service
- Named as the certificate authority in other vendors' subprocessor registers, including Youtrust's
- Subsidiary of Swisscom, majority-owned by the Swiss Confederation
- Published developer section, repository and service status page
Where Swisscom Trust Services falls short
- Not a document workflow product: envelopes, reminders, templates and audit UI are yours to build
- No published pricing and no self-service sandbox
- Swiss rather than EU jurisdiction, with eIDAS reach coming via the Austrian recognition
- Aimed at partners and platform builders, so a small team integrating one workflow is not the customer
- No public data residency statement for the signing service
Standout feature. It is the certificate authority other providers in this list call. Building on it directly means no intermediary between your product and the qualified signature — at the cost of writing everything around it yourself.
