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Connectors / Finance · HTTP Connector
Automate BlackLine with Tray.ai
Create journals, add a journal comment and import account balances in BlackLine. Connect BlackLine to the rest of your finance stack with Tray.ai.
What can you do with BlackLine on Tray.ai?
BlackLine is financial close software for accounting teams, covering account reconciliations, journal entries, transaction matching, close tasks, and variance analysis. Tray.ai connects to BlackLine through the HTTP Connector, so your workflows can call the BlackLine API alongside the rest of your stack.
- Import account balances from your ERP at month end so reconciliations can begin.
- Import bank statement balances each day from your bank feed for cash reconciliation.
- Create journals from approved accruals in your spreadsheet tool so the close moves on.
- Connects through
- HTTP Connector
- Authentication
- OAuth 2.0
- Base URL
- https://us.api.blackline.com
Set it up
Connect BlackLine to Tray.ai
Each step uses BlackLine's own API details, from its documentation.
Step 1
Sign in to BlackLine with OAuth 2.0
Set up an OAuth 2.0 authentication with the client ID and secret of an OAuth app you register with BlackLine. Sign in once and every step reads the token from there.
Step 2
Point the HTTP Client at the API
Add an HTTP Client step and use https://us.api.blackline.com as the base URL. Or paste a cURL example from BlackLine's API docs, and Tray.ai fills in the method, URL, and headers.
Step 3
Start with “List journals”
It's one of 22 documented actions, under Journals. The response comes back as data the next step can map into your other apps.
Step 4
Hand it to an AI agent
Wrap “Get a journal” and “Create journals” in workflows, and Tray.ai's Agent Gateway for MCP publishes them as governed tools Claude and other AI agents can call.
Give your AI agents BlackLine tools
Build an MCP server on BlackLine in Agent Gateway and choose which actions your agents can call. Every call runs with access control and an audit trail. How Agent Gateway works
- List journals
- List journal comments
- Import account balances
- Load tasks
- List report runs
- Load variance rules
- Get a journal
- Create journals
What the BlackLine API covers
6 resources and 22 documented actions, each one a call the HTTP Connector can make from a Tray.ai workflow. Connecting it takes a few clicks: here's how.
Journals
- List journals
- Get a journal
- Create journals
- Update journals
- Certify journals
- Reject a journal
Journal comments
- List journal comments
- Add a journal comment
- Update a journal comment
- Delete a journal comment
Account reconciliations
- Import account balances
- Import reconciliation items
- Import bank statement balances
- Get account settings
Tasks
- Load tasks
- Load task dependencies
Reports
- List report runs
- Get a completed report
- Start a report export
- Check export status
Variance
- Load variance rules
- Load variance assignments
Checked against BlackLine's own documentation on 2026-10-22
How Tray.ai makes this work
BlackLine plugs into the whole Tray.ai platform
Intelligent Integration
Integrate and automate across 10,100+ apps, databases, APIs, and services with visual workflows, error handling, and observability.
Learn more →Agent Builder
Build AI agents that read, write, and take action in BlackLine — with guardrails, audit, and human-in-the-loop.
Learn more →Agent Gateway for MCP
Expose BlackLine actions as governed MCP tools — observable, rate-limited, authenticated.
Learn more →Tray Helix
Build apps on BlackLine data with your AI assistant, then deploy, run, and govern them on Tray.ai.
Learn more →More finance apps on Tray.ai
Dedicated connectors and other apps Tray.ai reaches in the same category. See every finance connector →
Frequently asked questions
What can a Tray.ai workflow do in BlackLine?
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The BlackLine API documents 22 actions across 6 resources (Journals, Journal comments, Account reconciliations, Tasks, Reports, Variance). For example: List journals; List journal comments; Import account balances. A workflow can make any documented call through the HTTP Connector.
How does Tray.ai authenticate with BlackLine?
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The BlackLine API uses OAuth 2.0. You save it once as a Tray.ai authentication, and the HTTP Connector adds it to every request.
See BlackLine working against your stack.
We'll walk through a tailored demo with your systems plugged in.
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