Fragment

aid: fragment
name: Fragment
description: Fragment is the ledger API for engineers who move money. It provides a double-entry accounting engine — "the
  database for money" — that lets developers model any funds flow as declarative, typed schemas and post balanced, immutable
  ledger entries through a GraphQL API. Fragment generates a typesafe SDK from your chart-of-accounts schema, tracks real-time,
  historical, period, and strongly-consistent balances across multi-currency and custom-currency accounts, and reconciles
  internal ledgers against external systems (Stripe, Increase, Unit, banks) via linked and external accounts. Every write
  mutation is idempotent (per-Ledger idempotency keys), responses are GraphQL union types with typed errors, list queries
  are cursor-paginated, and the API is deployed across AWS regions. Fragment is used by companies including Bill, Ramp, Pleo,
  AtoB, Basic Capital, and Nala, and is backed by General Catalyst.
url: https://raw.githubusercontent.com/api-evangelist/fragment/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-tier: enriched
x-tier-reason: portfolio-lead
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: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
image: https://fragment.dev/favicon.ico
tags:
- Company
- Ledger
- Accounting
- Payments
- Fintech
- Double-Entry
- Money Movement
- GraphQL
- Financial Infrastructure
- Reconciliation
apis:
- name: Fragment Ledger API
  description: Fragment's GraphQL Ledger API. Store a double-entry chart-of-accounts schema, create ledgers, post idempotent
    ledger entries and lines, read aggregated / historical / period / strongly-consistent balances, reverse and migrate entries,
    group entries, and reconcile against external accounts and transactions (links). OAuth2 client-credentials auth, typed
    union responses, and cursor pagination.
  humanURL: https://fragment.dev/docs
  baseURL: https://api.fragment.dev
  tags:
  - Ledger
  - Accounting
  - GraphQL
  - Payments
  properties:
  - type: GraphQL
    url: graphql/fragment-schema.graphql
  - type: APIReference
    url: https://fragment.dev/api-reference/ledger-overview
  - type: Authentication
    url: authentication/fragment-authentication.yml
  - type: Conventions
    url: conventions/fragment-conventions.yml
  - type: Idempotency
    url: conventions/fragment-conventions.yml
  - type: ErrorCatalog
    url: errors/fragment-error-codes.yml
  - type: DataModel
    url: data-model/fragment-data-model.yml
  - type: Conformance
    url: conformance/fragment-conformance.yml
  - type: X-MCPServerCandidate
    url: mcp/fragment-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DeveloperPortal
  url: https://fragment.dev/docs
- type: Documentation
  url: https://fragment.dev/docs
- type: APIReference
  url: https://fragment.dev/api-reference/ledger-overview
- type: GettingStarted
  url: https://fragment.dev/docs/quickstart
- type: Blog
  url: https://fragment.dev/blog
- type: ChangeLog
  url: changelog/fragment-changelog.yml
- type: GitHubOrganization
  url: https://github.com/fragment-dev
- type: StatusPage
  url: https://status.fragment.dev
- type: SignUp
  url: https://fragment.dev/get-access
- type: Login
  url: https://dashboard.fragment.dev/login
- type: Support
  url: https://fragment.dev/security
- type: TermsOfService
  url: https://fragment.dev/legal
- type: PrivacyPolicy
  url: https://fragment.dev/legal
- type: Security
  url: https://fragment.dev/security
- type: Compliance
  url: https://fragment.dev/security
- type: TrustCenter
  url: security/fragment-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/fragment-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/fragment-domain-security.yml
- type: Packages
  url: packages/fragment-packages.yml
- type: SDKs
  url: packages/fragment-packages.yml
- type: CLI
  url: cli/fragment-cli.yml
- type: Authentication
  url: authentication/fragment-authentication.yml
- type: Conventions
  url: conventions/fragment-conventions.yml
- type: Idempotency
  url: conventions/fragment-conventions.yml
- type: ErrorCatalog
  url: errors/fragment-error-codes.yml
- type: Lifecycle
  url: lifecycle/fragment-lifecycle.yml
- type: Conformance
  url: conformance/fragment-conformance.yml
- type: DataModel
  url: data-model/fragment-data-model.yml
- type: X-MCPServerCandidate
  url: mcp/fragment-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/fragment-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence