# BlackLine

**Canonical:** https://apis.io/providers/blackline/  
**Website:** https://www.blackline.com/  
**APIs profiled:** 7

BlackLine is a cloud-based financial operations (FinOps) and accounting automation platform that helps finance and accounting teams automate the financial close, account reconciliation, journal entry, transaction matching, intercompany, consolidation integrity, and reporting processes. BlackLine exposes a suite of RESTful APIs on its developer portal so customers and partners can integrate the platform with ERP systems, banking platforms, payroll, and reporting tools — covering period management, user and team management, account reconciliation, journals, task management, transaction matching, and reporting. APIs authenticate with OAuth 2.0 client credentials. BlackLine (NASDAQ: BL) is a public company surfaced in the API Evangelist network as a portfolio company of ICONIQ Capital.

## Kin Score — 25.7 / 100 (emerging)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 25.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 0.0 |
| Governance | 12.5 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 37.0 |
| Commercial Clarity | 36.8 |

## Agent readiness — 9.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | yes |
| 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 |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (7)

- **BlackLine Period API** — Manage accounting periods (open/close, list periods) in BlackLine.
- **BlackLine User Management API** — Create, read, and manage BlackLine user accounts.
- **BlackLine Team Management API** — Manage BlackLine teams and team membership.
- **BlackLine Reporting API** — Retrieve reporting data from the BlackLine platform.
- **BlackLine Account Reconciliation API** — Manage reconciliation items and supporting documents programmatically.
- **BlackLine Journal Entry API** — Create and manage journal entries programmatically.
- **BlackLine Transaction Matching API** — Push transactions into BlackLine for automated matching.

## Security (3)

- **Blackline Authentication** — oauth2 · 1 scheme
- **Blackline Domain Security** — TLSv1.3 · HSTS · DMARC
- **Blackline Trust Center** — SOC 1 Type 2, SOC 2 Type 2, SOC 3, ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018, ISO/IEC 27701, ISO/IEC 42001

## Tags

Company, Fintech, FinOps, Accounting, Financial Close, Reconciliation, Accounting Automation, ERP Integration, Enterprise Software

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