# Your tracked time. The story behind it.

Source: https://corespeed.io/integrations/harvest

Connect Harvest to Claude Code, Codex, Cursor or any MCP agent through CoreSpeed. Your agent reads time entries, projects, budgets and time reports, and answers where the hours went or which project is close to its budget. It works in the Harvest accounts you pick at sign-in, and logging, changing or deleting time is a separate call.

## Set up an agent

Give your agent this line: `set up https://corespeed.io/SKILL.md (read it raw, e.g. with curl)`

It fetches the skill at https://corespeed.io/SKILL.md, adds the CoreSpeed MCP server, signs you in (or up), and keeps the skill for next time. Connect Harvest after setup. Access follows the connected account and its permissions. Create an account: https://app.corespeed.io/sign-up

## Know where the hours went. Spot the budget risk

Ask your agent for last week's hours by project and the budgets that need a look, from the Harvest accounts you connect.

You ask your agent: "Report last week's Harvest hours by project. Flag any project past 80 percent of its budget, and list entries with no notes. Do not change any time entries."

It calls CoreSpeed:

- `harvest__report_time_by_project`: ok, 534 ms
- `harvest__get_project`: ok, 287 ms
- `harvest__list_time_entries`: ok, 466 ms

It reads from: Harvest.

### Weekly time: Last week, accounted for.

164 hours across three projects. Northwind site is at 86 percent of its budget, and four entries have no notes.

**Hours**

- Northwind site 61 h, Bluebird app 54 h, Internal 49 h.

**Follow up**

- Review the Northwind site scope before the budget runs out.
- Ask for notes on four entries.

_Illustrative example · Fictional data · No time entry changed_

All connectors: https://corespeed.io/docs/connectors

## From time entries to a clear week

Requests you can make once Harvest is connected. The data is fictional.

### See the week by project

Last week · hours by project · Time report

- Total: 164 hours
- Largest: Northwind site, 61 hours
- From the accounts you picked

### Catch a budget early

Project budgets · Budget against hours

- Near budget: Northwind site, 86 percent
- On track: Bluebird app, 52 percent
- Nothing changed

### Log time with a check

A time entry · Approvals

- Entry: 1.5 h, Northwind site
- Rule: Ask before writing to Harvest
- Waiting for you

Full example: https://corespeed.io/solutions/agent-approvals (Markdown: https://corespeed.io/solutions/agent-approvals.md)

## Keep your agent. Bring your work

One CoreSpeed account, across compatible agents.

1. **Set up CoreSpeed**: Give your agent the setup line. It adds CoreSpeed and signs you in.
2. **Connect Harvest**: Authorize the account and the content you need.
3. **Start with one task**: Ask for a summary, a brief, or a draft. Review the answer.

Setup guides: Claude Code https://corespeed.io/docs/mcp#claude-code · Codex https://corespeed.io/docs/mcp#codex · Cursor https://corespeed.io/docs/mcp#cursor

## Questions

### Which Harvest accounts can the agent use?

The accounts you pick when you connect Harvest. Inside each, Harvest's own roles decide which projects and people your user can see.

### Can the agent log or edit time?

Yes, when you ask. Logging, editing, deleting or starting a timer is a separate tool call, and approvals can hold it for a person. How approvals work: https://corespeed.io/docs/approvals

### Does this replace Harvest?

No. Your team keeps tracking time in Harvest. CoreSpeed lets your agent read it and answer questions about it.

### Do I have to switch agents?

No. CoreSpeed adds tools to the agent you already use: Claude Code, Codex, Cursor, or another MCP client. Each one signs in once.

### Can my agent access every account in our organization?

No. Access follows your CoreSpeed identity, each connection's visibility, and the app's own permissions. Personal connections stay private.

### Does this work without connecting an account?

No. Connect the app's account first; your CoreSpeed workspace shows what each app needs. The examples on this page use fictional data. All connectors: https://corespeed.io/docs/connectors

Every tool and price: https://corespeed.io/catalog/harvest

## Related pages

- [Approval gates for AI agent tool actions](https://corespeed.io/solutions/agent-approvals): Set approval policies for writes through CoreSpeed. Review held tool actions while your team keeps using its preferred agents.
- [Linear for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/linear): Bring Linear issues and project context into your agent. See what is moving and what needs attention.
- [Timely for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/timely): Turn Timely hours into a weekly summary by client and person inside your agent. Logging or changing time stays a separate step.

## Sources

- Connectors: https://corespeed.io/docs/connectors
- Harvest API v2: https://help.getharvest.com/api-v2/

Reviewed 2026-11-10.

## Links

- Product overview: https://corespeed.io/ (Markdown: https://corespeed.io/index.md)
- All integrations: https://corespeed.io/integrations (Markdown: https://corespeed.io/integrations.md)
- Documentation: https://corespeed.io/docs
- Pricing: https://corespeed.io/pricing (Markdown: https://corespeed.io/pricing.md)