Fragment | The Database for Money

FRAGMENT is the Ledger API for engineers that move money.

Why FRAGMENT

Postgres wasn't built for money and forces you to invent your own ways to track it. FRAGMENT comes with real-time, double-entry accounts that store and track every penny out of the box.

Postgres

FRAGMENT

How it works

Design your Schema

Choose from a library of example Ledgers. Use our Schema designer to customize them to match your flow of funds.

Link your
financial systems

Track the state of every transaction from your bank, card and payment systems. Instantly update your Ledger when they change.

Stripe

Increase

Unit

Custom

Integrate your product

Generate an SDK to read and write balances. Call our API to check or update them.

Store your Schema

mutation StoreSchema(
  $schema: SchemaInput!
) {
  storeSchema(schema: $schema) {
      schema {
        name
        version {
          version
          created
          json
        }
      }
    }
  }
}

Store your Schema

mutation StoreSchema($schema: SchemaInput!) {
  storeSchema(schema: $schema) {
    schema {
      name
      version {
        version
        created
        json
      }
    }
  }
}

Post an entry

mutation WalletTransfer(
  $ik: SafeString!
  $entry: LedgerEntryInput!
) {
  addLedgerEntry(
    ik: $ik, entry: $entry
  ) {
    lines {
      amount
      account { path }
    }
  }
}

Query a balance

query GetBalance(
  $account: LedgerAccountMatchInput!
) {
  ledgerAccount(
    ledgerAccount: $account
  ) {
    balance(
      consistencyMode: "strong"
      at: "2022-02-01"
    )
  }
}

Work with us to design your Ledger in 45 minutes.

Performance

FRAGMENT is really fast. Check out our latest load test:

Requests: 19,622,609