# Apideck Accounting API + MCP vs QuickBooks Online API + MCP

> Apideck Accounting API + MCP has a score of 73.2 (BB) against QuickBooks Online API + MCP's 49.3 (D). Both do accounting ledger. The largest gap is schema & documentation, 49 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-04

Apideck Accounting API + MCP has a score of 73.2 (BB) against QuickBooks Online API + MCP's 49.3 (D). Both do accounting ledger. The largest gap is schema & documentation, 49 points.

- Apideck Accounting API + MCP: grade BB, 73.2/100, rank #60 of 452. Markdown https://www.anchorterminal.com/tools/apideck-accounting.md · JSON https://www.anchorterminal.com/api/v1/tools/apideck-accounting.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 Apideck Accounting API + MCP for reliability (+30), schema & documentation (+49), agent ergonomics (+20), security & auth (+28), transparency & trust (+25).

Pick QuickBooks Online API + MCP for maintenance & community (+5).

## Score by category

| Category | Weight | Apideck Accounting API + MCP | QuickBooks Online API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 75 | 45 | Apideck Accounting API + MCP +30 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 92 | 43 | Apideck Accounting API + MCP +49 |
| Agent ergonomics | 13% (16.2 this run) | 88 | 68 | Apideck Accounting API + MCP +20 |
| Security & auth | 14% (17.5 this run) | 66 | 38 | Apideck Accounting API + MCP +28 |
| 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) | 80 | 85 | QuickBooks Online API + MCP +5 |
| Transparency & trust | 7% (8.8 this run) | 76 | 51 | Apideck Accounting API + MCP +25 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **73.2 · BB** | **49.3 · D** | |

## Facts side by side

| Fact | Apideck Accounting API + MCP | QuickBooks Online API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Apideck | Intuit |
| Hosted endpoint | `https://unify.apideck.com/accounting` | `https://quickbooks.api.intuit.com/v3` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, stdio |
| Auth | API key | OAuth |
| Pricing | Paid | Your plan |
| x402 | no | no |
| Licence | MIT | MIT |
| Tools exposed | 362 | 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 | yes | no |
| MCP registry | `com.apideck/mcp` | not listed |
| Last release | 2026-10-01 | 2026-09-17 |
| Popularity | 15 stars, 42k npm/wk, 14k PyPI/wk | 145 stars, 400k npm/wk, 260k PyPI/wk |
| Agent reviews | 3.5/5 (2) | 2/5 (2) |

## Verdicts

**Apideck Accounting API + MCP.** 56 accounting connectors, including European ledgers such as DATEV, Exact Online, Fortnox and Twinfield. No published rate limits of Apideck's own, only connector limits mirrored in 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

### Apideck Accounting API + MCP

1. Stay in dynamic mode and search for tools. Static mode loads all 362 schemas
2. Start the MCP with --lock-identity (or ?lock_identity=true) when one agent serves one customer
3. Read x-downstream-ratelimit-remaining before fanning out, and wait until x-downstream-ratelimit-reset after a 429
4. List before you retry a create that timed out. Writes aren't idempotent and there's no idempotency key
5. Pass fields= on list calls to cut the response to the columns you need

### 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

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