# TigerBeetle

**Canonical:** https://apis.io/providers/tigerbeetle/  
**Website:** https://tigerbeetle.com/  
**APIs profiled:** 4

TigerBeetle is an open-source (Apache 2.0) distributed financial accounting and transactions database, purpose-built for high-throughput, mission-critical double-entry bookkeeping and online transaction processing (OLTP). It is NOT an HTTP/REST API and ships no OpenAPI - the database is accessed over a custom binary wire protocol on TCP (default port 3000) via official client libraries for .NET, Go, Java, Node.js, Python, Ruby, and Rust. The "API" is the set of client operations - create_accounts, create_transfers, lookup_accounts, lookup_transfers, get_account_transfers, get_account_balances, query_accounts, and query_transfers - that use fixed-size, cache-line-aligned structs for zero-deserialization performance. TigerBeetle is self-hostable; a fully managed service is also offered to select enterprise partners via sales@tigerbeetle.com.

## Kin Score — 15.0 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 15.0).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (4)

- **TigerBeetle Accounts API** — Client-library operations for managing 128-byte double-entry accounts - create_accounts (establish immutable accounts on a ledger with debit/credit constraint flags), lookup_acc...
- **TigerBeetle Transfers API** — Client-library operations for moving funds between accounts as immutable 128-byte double-entry transfers - create_transfers (single-phase, plus two-phase pending / post-pending ...
- **TigerBeetle Account Balances API** — The get_account_balances operation returns the historical balances of an account over time (for accounts created with the history flag), each a point-in-time AccountBalance reco...
- **TigerBeetle Account Filter Queries API** — Query surface for retrieving the transfers and balances tied to a single account. The get_account_transfers operation takes an AccountFilter (account_id, timestamp range, limit,...

## Security (1)

- **Tigerbeetle Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Tigerbeetle Plans Pricing**

## Tags

Financial, Accounting, Transaction, Database, Double-Entry, Ledger, OLTP, Distributed, Open-Source, Binary Protocol

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/tigerbeetle/). Scores are computed from the provider's own public artifacts under a published rubric.