Ledger
Ledger SAS is the Paris-headquartered maker of the Ledger hardware signer family (Nano, Flex, Stax) and the surrounding self-custody and institutional-custody platform. Its developer surface spans five distinct programs: the Ledger Wallet exchange-provider APIs (Swap, Buy, Sell, Earn and Card OpenAPI contracts an exchange partner implements so its service appears natively inside Ledger Wallet), the Ledger Enterprise "Vault API" for institutional custody — accounts, transactions, governance requests, whitelists, entities, staking, compliance digests and reporting/notification webhooks — the Ledger Enterprise Multisig transaction service for Ledger-secured Safe smart accounts, the Wallet API (a bi-directional JSON-RPC 2.0 bridge that lets a Live App talk to a Ledger signer), and the Device Management Kit plus Clear Signing stack for building native device apps and clear-signed transactions. Ledger also publishes an unusually complete agent surface for a hardware company: an RFC 9727 /.well-known/api-catalog, an llms.txt on the developer portal, and first-party Agent Skills for coding agents and the Ledger Wallet CLI.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Ledger the way a machine reads it — 49 machine-readable artifacts across 14 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Ledger scores 60.6/100 (strong), with a separate agent-readiness read of 40/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-01 · rubric v0.18.0
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How we profile Ledger
Each block below is one kind of artifact we hold for Ledger. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 42
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Ledger Wallet API
Bi-directional JSON-RPC 2.0 interface between a Live App (dApp) and a wallet implementing the Wallet API Server, such as Ledger Wallet. Currency-agnostic modules for accounts, c...
Ledger Device Management Kit
TypeScript SDK for discovering, connecting to and driving Ledger hardware signers over WebHID, Bluetooth, USB and Speculos — sessions, device state, app management, APDU exchang...
Ledger 4337 API
The 4337 API from Ledger — 5 operation(s) for 4337.
Ledger Accounts API
The Accounts API from Ledger — 17 operation(s) for accounts.
Ledger Authentication API
The Authentication API from Ledger — 2 operation(s) for authentication.
Ledger Buy Redirect API
The Buy Redirect API from Ledger — 1 operation(s) for buy redirect.
Ledger Capabilities API
The Capabilities API from Ledger — 1 operation(s) for capabilities.
Ledger Cardano API
The Cardano API from Ledger — 4 operation(s) for cardano.
Ledger Compliance API
The Compliance API from Ledger — 2 operation(s) for compliance.
Ledger Crypto Currencies API
The Crypto Currencies API from Ledger — 1 operation(s) for crypto currencies.
Ledger Currencies API
The Currencies API from Ledger — 5 operation(s) for currencies.
Ledger Delegates API
The delegates API from Ledger — 2 operation(s) for delegates.
Ledger Digests API
The Digests API from Ledger — 3 operation(s) for digests.
Ledger Entities API
The Entities API from Ledger — 4 operation(s) for entities.
Ledger Ethereum API
The Ethereum API from Ledger — 3 operation(s) for ethereum.
Ledger Groups API
The Groups API from Ledger — 3 operation(s) for groups.
Ledger Grow API
The Grow API from Ledger — 1 operation(s) for grow.
Ledger Labels API
The Labels API from Ledger — 2 operation(s) for labels.
Ledger Messages API
The Messages API from Ledger — 3 operation(s) for messages.
Ledger Modules API
The modules API from Ledger — 1 operation(s) for modules.
Ledger Notifications API
The notification feature allows you to be notified when an API user receives an important event. To receive a webhook notification, you must first register your target endpoint ...
Ledger Organizations API
The Organizations API from Ledger — 1 operation(s) for organizations.
Ledger Owners API
The owners API from Ledger — 1 operation(s) for owners.
Ledger Pairs API
The Pairs API from Ledger — 1 operation(s) for pairs.
Ledger PKI API
The PKI API from Ledger — 1 operation(s) for pki.
Ledger Pledges API
The Pledges API from Ledger — 2 operation(s) for pledges.
Ledger Quote API
The Quote API from Ledger — 1 operation(s) for quote.
Ledger Requests API
A Request represents the intent of creating or changing an object in the system. For example, when you create a transaction, a *Create transaction* request is created. You can o...
Ledger Safes API
The safes API from Ledger — 6 operation(s) for safes.
Ledger Sell API
The Sell API from Ledger — 1 operation(s) for sell.
Ledger Sell Redirect API
The Sell Redirect API from Ledger — 1 operation(s) for sell redirect.
Ledger Settlements API
The Settlements API from Ledger — 4 operation(s) for settlements.
Ledger Solana API
The Solana API from Ledger — 4 operation(s) for solana.
Ledger Stakes API
The Stakes API from Ledger — 1 operation(s) for stakes.
Ledger Status API
The Status API from Ledger — 1 operation(s) for status.
Ledger Swap API
The Swap API from Ledger — 2 operation(s) for swap.
Ledger Tezos API
The Tezos API from Ledger — 2 operation(s) for tezos.
Ledger Transaction API
The Transaction API from Ledger — 1 operation(s) for transaction.
Ledger Transactions API
The transactions API from Ledger — 10 operation(s) for transactions.
Ledger Users API
The Users API from Ledger — 3 operation(s) for users.
Ledger Webhook API
The Webhook API from Ledger — 1 operation(s) for webhook.
Ledger Whitelists API
The Whitelists API from Ledger — 3 operation(s) for whitelists.
Scroll within the panel for all 42 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Ledger Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Ledger Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Ledger Exchange Webhooks
ASYNCAPISecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Ledger Trust Center
SOC 2 Type 2, ISO 27001, ISO 22301, CSPN V4 (ANSSI security visa), FIPS 140 Level III, Common Criteria EAL5+
SECURITYResources
Every other property we hold for Ledger — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 8 ·
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 6
Authentication, authorization, and security posture
Operate 7
Status, limits, changes, and where to get help
Scroll within the panel for all 7 ·
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 3
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/ledger · machine-readable index on apis.io
This is an independent, third-party profile of Ledger, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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