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Documentation
Pages from 29 sources, kept in sync: the official Canton Network and Digital Asset docs, documentation from teams building on Canton, and readmes from their code. Search all of it, or start from a path below.
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Official
Subscribe command completions
JSON API AsyncAPI › /v2/commands/command-completions › subscribe /v2/commands/command-completions Subscribe command completio…
Sep 22, 2026
Official
ChangeAssignation
…repeated Contract force_repair_when_topology_transaction_at_ledger_end bool Outputs ChangeAssignationResponse Message com.digitalasset.canton.admin.participant.v30.ChangeAssignatio…
Nov 6, 2026
Official
Subscribe flats
JSON API AsyncAPI › /v2/updates/flats › subscribe /v2/updates/flats Subscribe flats WebSocket Updated 3.5 SUBSCRIBE /v2/updat…
Sep 22, 2026
Official
1.0.0
…ased on April 17th, 2026 Wallet SDK v1 is the new long-term API shape for application development. Rather than being an additive patch to v0, v1 introduces a cleaner and more expli…
Sep 11, 2026
Official
1.3.0
…f_signed', issuer: 'unsafe-auth', credentials: { clientId: 'ledger-api-user', clientSecret: 'unsafe', audience: 'https://canton.network.global', scope: '', }, }, ledgerClientUrl: '…
Jul 13, 2026
Official
Overview
…t Gateway to: • Connect to dApps : expose the CIP-0103 dApp API so any compatible dApp can connect, list accounts, and request transactions. • Use your own validator : talk to your…
Oct 22, 2026
Official
Troubleshooting Cheat Sheet
…ion, JDK setup. Development Issues Daml compilation errors, API connection problems, transaction failures during development. Operational Issues Traffic exhaustion, upgrade problem…
Jul 16, 2026
Official
JavaScript Codegen
…r to construct types and work with JSON when using the JSON Ledger API. See Get started with Canton and the JSON Ledger API for details on how to use the generated code to interact…
Jul 6, 2026
Official
Performance Optimization
Canton node performance depends on database throughput, JVM configuration, sequencer capacity, and pruning strategy. This page covers the key tuning areas for validator and SV node…
Sep 22, 2026
Official
0.12.0
…featured app markers. const delegateCommand = await sdk.userLedger?.createDelegateProxyCommand( exchangeParty, treasuryParty ) const delegationContractResult = await sdk.userLedger…
Jul 13, 2026
Official
Registering Plugins
…f_signed', issuer: 'unsafe-auth', credentials: { clientId: 'ledger-api-user', clientSecret: 'unsafe', audience: 'https://canton.network.global', scope: '', }, }, ledgerClientUrl: '…
Oct 27, 2026
Official
Daml Shell
…hell is a component that enables you to interactively query ledger data made available in the Participant Query Store (PQS) PostgreSQL database. Overview Daml Shell provides an int…
Aug 4, 2026
Official
Splice Daml APIs
The APIs below are published by Splice to aid decoupling different Canton Network applications. Consider using them to decou…
Nov 3, 2026
Official
Status Definitions and Compatibility
… in Releases and Versioning . This page defines: the public API surface, status labels, and the compatibility rules between components. The public API Stable features and component…
Sep 3, 2026
Official
0.15.0
… • ACS client side caching Querying the ACS is an expensive ledger API operation, as an alternative the ACS is fetched into memory once and subscribe to new events instead. This sh…
Jul 13, 2026
Official
Active Contracts Head Snapshot (ACHS)
…exer settings: canton.participants.<participant>.parameters.ledger-api-server.indexer.achs-config { valid-at-distance-target = 1000000 last-populated-distance-target = 500000 } Tun…
Jul 6, 2026
Official
POST /v2/state/active-contracts
cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'http://localhost:7575/v2/state/active-contracts' \ --header 'Authorization: Bearer $TOKEN' \ --header 'Content-…
Aug 31, 2026
Official
ImportAcs
…ronizer_id string force_repair_when_topology_transaction_at_ledger_end bool Outputs ImportAcsResponse Message com.digitalasset.canton.admin.participant.v30.ImportAcsResponse Server…
Nov 6, 2026
Official
POST /v0/transactions
Scan API POST /v0/transactions OpenAPI Updated 0.5.12 Deprecated 0.5.10 Removed in 0.7.0 POST /v0/transactions Removed in 0.7…
Sep 22, 2026
Official
Proof of Transfer
…ns for locating and extracting the Transfer Object from the ledger via the JSON API. Exposing the Transfer Object and UpdateID Technical Guidelines: What Constitutes the Transfer O…
Sep 2, 2026
Official
GET /livez
cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/livez' \ --header 'Authorization: Bearer $TOKEN' import json import requests url = "…
Aug 31, 2026
Official
Using the JSON Ledger API
Using the JSON Ledger API Overview You are ready to extend the CN Quickstart to interact directly with your LocalNet. You’ll learn how …
Sep 11, 2026
Official
GET /readyz
cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/readyz' \ --header 'Authorization: Bearer $TOKEN' import json import requests url = "…
Aug 31, 2026
Official
Cryptographic keys in Canton
This section is about cryptographic keys in Canton. As a preliminary, it outlines general options for storing secrets in Canton. Then, it gives an overview of the various kinds of …
Aug 6, 2026
Official
POST /v2/contracts/contract-by-id
cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'http://localhost:7575/v2/contracts/contract-by-id' \ --header 'Authorization: Bearer $TOKEN' \ --header 'Conten…
Aug 31, 2026
Official
Scan Global Synchronizer Operations API
…f the Global Synchronizer, based on information recorded on-ledger. Validator Liveness Rather than Listing_all_Validators , which can yield a large number of irrelevant records, /v…
Jun 22, 2026
Official
Party Management
…gement Parties are the entities that interact with the Daml ledger, representing users or organizations. They can be onboarded to a Participant Node, which allows them to submit tr…
Oct 19, 2026
Official
Splice.ValidatorOnboarding
…ropy, and be communicated to the candidate via a secure off-ledger channel. Once the candidate has set up his participants, he contacts the SV node via an API call and presents his…
May 18, 2026
Official
GET /v2/packages
cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'http://localhost:7575/v2/packages' \ --header 'Authorization: Bearer $TOKEN' import json import requests url = "…
Aug 31, 2026
Official
1.5.0
…06-29 🚀 Features • support service account auth config for ledger API access ( #2045 ) • accept ApiKey authorization headers ( #2044 ) • support API key mgmt in frontend ( #2039 )…
Jul 13, 2026
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