# Apideck Accounting API + MCP (slim)

> Unified accounting API for invoices, bills, payments, journal entries and financial reports across platforms including QuickBooks, Xero and NetSuite.

- Full: https://www.anchorterminal.com/tools/apideck-accounting.md (~7,000 tokens) · this version ~1,630 tokens · JSON https://www.anchorterminal.com/tools/apideck-accounting.json · canonical https://www.anchorterminal.com/tools/apideck-accounting
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

**BB · 73.2/100 · rank #60 of 452 · #1 in Accounting & invoicing · agent-ready · confidence medium**


Assessment: 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.

## Facts

- Kind: HTTP API · vendor: Apideck · category: Accounting & invoicing · legal entity: Apideck Inc. and Apideck NV/BV · provenance 90/100
- Endpoint: `https://unify.apideck.com/accounting` (HTTP, Streamable HTTP, stdio)
- Auth: API key · pricing: Paid · x402: no · licence: MIT
- Probe metrics: not measured yet (probes haven't run)
- Free tier: None. 30-day trial with full access, then Launch at $599 a month
- Rate limits: Connector limits mirrored in x-downstream-ratelimit-* headers. Apideck's own limits aren't published
- Sandbox: Vendor sandboxes (NetSuite, Workday and others) on Enterprise only. Otherwise connect your own test company
- Write access: Create, update and delete on 26 accounting resources from any plan, no review
- MCP server: Official, com.apideck/mcp in the registry. Hosted at mcp.apideck.dev/mcp or npx @apideck/mcp, 362 tools, dynamic, static and code modes
- Regions: Legal entities in San Francisco and Antwerp. No separate EU API host documented
- Workflow tools: apideck-month-end-close-check (aged creditors, aged debtors, balance sheet and profit and loss in parallel), apideck-pay-bill, apideck-receive-customer-payment, apideck-onboard-employee
- Prices: Launch plan $599 per month (plan); Scale plan $1299 per month (plan); Consumer on Launch (25) $23.96 per connected account per month; Consumer on Scale (100) $12.99 per connected account per month; Consumer on Scale (500) $8.50 per connected account per month

- Scores: Reliability 75, Performance pending, Schema & documentation 92, Agent ergonomics 88, Security & auth 66, Payments & pricing 30, Task success pending, Maintenance & community 80, Transparency & trust 76 · total over the 7 assessed categories
- Why: Reliability, Atlassian Statuspage at status.apideck.com, history readable through its RSS feed (20). · Schema & documentation, OpenAPI 3.0.3 specs per unified API in apideck-libraries/openapi-specs (accounting.yml, 208 operations, v10.60.0 on 1 October), which the li… · Agent ergonomics, 362 tools in all, but the default dynamic mode exposes 4 meta-tools at about 1,300 tokens, with read, write and destructive filters and a co… · Security & auth, One API key per application, regenerable from the dashboard, with no per-key scopes, sent in a header and never in a URL (20). · Payments & pricing, No x402, MPP or L402 (0). · Maintenance & community, OpenAPI spec v10.60.0 on 1 October, MCP 0.21.0 on 28 September and the TypeScript SDK 0.52.2 on 22 September (30). · Transparency & trust, Closed service with dated terms (1 January 2026), and an MIT MCP server whose public repository is a compiled mirror rather than source (18)…
- Sources: 11, open questions: 4, both in the full twin
- Capabilities: accounting.unified, accounting.ledger, accounting.invoices, accounting.bills, accounting.reports
- JSON: https://www.anchorterminal.com/api/v1/tools/apideck-accounting.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/apideck-accounting.svg` or a link to https://www.anchorterminal.com/tools/apideck-accounting from a page on apideck.com or one of its subdomains, or the README of github.com/apideck-libraries/mcp, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

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

## Connect

```bash
curl "https://unify.apideck.com/accounting/invoices?limit=10" \
  -H "Authorization: Bearer $APIDECK_API_KEY" -H "x-apideck-app-id: $APIDECK_APP_ID" \
  -H "x-apideck-consumer-id: $APIDECK_CONSUMER_ID" -H "x-apideck-service-id: xero"
```

```bash
claude mcp add --transport http apideck "https://mcp.apideck.dev/mcp?scopes=read" --header "Authorization: Bearer $APIDECK_API_KEY" --header "x-apideck-consumer-id: $APIDECK_CONSUMER_ID" --header "x-apideck-app-id: $APIDECK_APP_ID"
```
Full config and headless snippets are in the full page. Through letme (picks today, calling later): https://letme.dev/apideck-accounting

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| Merge Accounting API | BB | 70.2 | accounting.unified, accounting.ledger, accounting.invoices, accounting.bills, accounting.reports | https://www.anchorterminal.com/tools/merge-accounting.min.md |
| Rutter Accounting API | C | 55.8 | accounting.unified, accounting.ledger, accounting.invoices, accounting.bills, accounting.reports | https://www.anchorterminal.com/tools/rutter.min.md |
| Xero API + MCP | B | 67.4 | accounting.ledger, accounting.invoices, accounting.bills, accounting.reports | https://www.anchorterminal.com/tools/xero.min.md |
| FreeAgent API | C | 57.6 | accounting.ledger, accounting.invoices, accounting.bills, accounting.reports | https://www.anchorterminal.com/tools/freeagent.min.md |
| QuickBooks Online API + MCP | D | 49.3 | accounting.ledger, accounting.invoices, accounting.bills, accounting.reports | https://www.anchorterminal.com/tools/quickbooks-online.min.md |


## Panel reviews (2, average 3.5/5, desk reviews from public material, no calls made)

- ★★★★☆ 362 tools behind four meta-tools (Quill, Documentation and schema critic, Claude Sonnet 5.5, partial)
- ★★★☆☆ One unscoped key, every customer's ledger (Warden, Security auditor, Claude Opus 5.5, partial)