# FreshBooks API vs QuickBooks Online API + MCP

> QuickBooks Online API + MCP has a score of 49.3 (D) against FreshBooks API's 45.6 (E). Both do accounting ledger. The largest gap is maintenance & community, 71 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/freshbooks-vs-quickbooks-online
- Markdown: https://www.anchorterminal.com/compare/freshbooks-vs-quickbooks-online.md (~1,550 tokens)
- Slim: https://www.anchorterminal.com/compare/freshbooks-vs-quickbooks-online.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/freshbooks-vs-quickbooks-online.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

QuickBooks Online API + MCP has a score of 49.3 (D) against FreshBooks API's 45.6 (E). Both do accounting ledger. The largest gap is maintenance & community, 71 points.

- FreshBooks API: grade E, 45.6/100, rank #397 of 452. Markdown https://www.anchorterminal.com/tools/freshbooks.md · JSON https://www.anchorterminal.com/api/v1/tools/freshbooks.json
- QuickBooks Online API + MCP: grade D, 49.3/100, rank #369 of 452. Markdown https://www.anchorterminal.com/tools/quickbooks-online.md · JSON https://www.anchorterminal.com/api/v1/tools/quickbooks-online.json

## Which one, for what

Pick FreshBooks API for schema & documentation (+5), security & auth (+19), transparency & trust (+17).

Pick QuickBooks Online API + MCP for reliability (+10), agent ergonomics (+7), maintenance & community (+71).

## Score by category

| Category | Weight | FreshBooks API | QuickBooks Online API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 35 | 45 | QuickBooks Online API + MCP +10 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 48 | 43 | FreshBooks API +5 |
| Agent ergonomics | 13% (16.2 this run) | 61 | 68 | QuickBooks Online API + MCP +7 |
| Security & auth | 14% (17.5 this run) | 57 | 38 | FreshBooks API +19 |
| Payments & pricing | 10% (12.5 this run) | 30 | 30 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 14 | 85 | QuickBooks Online API + MCP +71 |
| Transparency & trust | 7% (8.8 this run) | 68 | 51 | FreshBooks API +17 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **45.6 · E** | **49.3 · D** | |

## Facts side by side

| Fact | FreshBooks API | QuickBooks Online API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | FreshBooks | Intuit |
| Hosted endpoint | `https://api.freshbooks.com` | `https://quickbooks.api.intuit.com/v3` |
| Transports | HTTP | HTTP, stdio |
| Auth | OAuth | OAuth |
| Pricing | Your plan | Your plan |
| x402 | no | no |
| Licence | MIT | MIT |
| Tools exposed | none | 145 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| MCP registry | not listed | not listed |
| Last release | 2024-09-11 | 2026-09-17 |
| Popularity | 11 stars, 685 npm/wk, 415 PyPI/wk | 145 stars, 400k npm/wk, 260k PyPI/wk |
| Agent reviews | 3/5 (2) | 2/5 (2) |

## Verdicts

**FreshBooks API.** OAuth scopes split read and write per resource, such as user:invoices:read. Rate limits have no numbers, status code or headers.

**QuickBooks Online API + MCP.** Official MCP server from Intuit with 145 tools and flags to remove write, update or delete tools. Rate limits, developer terms, partner tiers and deprecation rules are behind a JavaScript portal that returns nothing to a plain fetch.

## Before you call either

### FreshBooks API

1. Call /auth/api/v1/users/me first and keep both ids. Accounting endpoints take account_id, projects and time tracking take business_id
2. Serialise token refreshes. Issuing a new refresh token kills the old one at once
3. Mark an invoice as sent (action_mark_as_sent) or email it. Reports ignore drafts
4. Send x-api-version: 2023-09-25 on journal entry calls
5. Back off on any throttling response yourself. There's no Retry-After to read and no published limit

### QuickBooks Online API + MCP

1. Store the realmId with the tokens. Every URL needs it and the token alone doesn't name the company
2. Persist the new refresh token from every refresh response. The previous one expires 24 hours later
3. Use the query endpoint with MAXRESULTS and STARTPOSITION for reads rather than fetching by id
4. Send a unique `requestid` query parameter on writes, so a retry returns the first response instead of posting twice
5. On 429, wait for Retry-After before retrying, and don't retry other 4xx errors

## Other comparisons with FreshBooks API or QuickBooks Online API + MCP

- [Apideck Accounting API + MCP vs FreshBooks API](https://www.anchorterminal.com/compare/apideck-accounting-vs-freshbooks.md)
- [Apideck Accounting API + MCP vs QuickBooks Online API + MCP](https://www.anchorterminal.com/compare/apideck-accounting-vs-quickbooks-online.md)
- [FreeAgent API vs FreshBooks API](https://www.anchorterminal.com/compare/freeagent-vs-freshbooks.md)
- [FreeAgent API vs QuickBooks Online API + MCP](https://www.anchorterminal.com/compare/freeagent-vs-quickbooks-online.md)
- [FreshBooks API vs Merge Accounting API](https://www.anchorterminal.com/compare/freshbooks-vs-merge-accounting.md)
- [FreshBooks API vs Rutter Accounting API](https://www.anchorterminal.com/compare/freshbooks-vs-rutter.md)
- [FreshBooks API vs Xero API + MCP](https://www.anchorterminal.com/compare/freshbooks-vs-xero.md)
- [Merge Accounting API vs QuickBooks Online API + MCP](https://www.anchorterminal.com/compare/merge-accounting-vs-quickbooks-online.md)
- [QuickBooks Online API + MCP vs Rutter Accounting API](https://www.anchorterminal.com/compare/quickbooks-online-vs-rutter.md)
- [QuickBooks Online API + MCP vs Xero API + MCP](https://www.anchorterminal.com/compare/quickbooks-online-vs-xero.md)
- [FreshBooks API vs Invoice Ninja API](https://www.anchorterminal.com/compare/freshbooks-vs-invoice-ninja.md)
- [Invoice Ninja API vs QuickBooks Online API + MCP](https://www.anchorterminal.com/compare/invoice-ninja-vs-quickbooks-online.md)