Zoho Books

Zoho Books (via Apideck)

Access Zoho Books through Apideck's Accounting unified API — one of 34 Accounting connectors that share the same method surface. Code you write here ports to Access Financials, Acumatica, banqUP and 30 other Accounting connectors by changing a single serviceId string. Apideck handles auth, pagination, rate limiting, and retries so you don't write per-tenant Zoho Books plumbing.

Quick facts

• Apideck serviceId: zoho-books
• Unified API: Accounting
• Auth type: oauth2
• Gotchas: page
• Zoho Books docs: https://www.zoho.com/books/api/v3/
• Homepage: https://www.zoho.com/books/

At a glance

• Implementation difficulty: straightforward — Self-Service OAuth, No Partnership Required
• Vendor partnership required: no — No partner programme — self-service OAuth client registration is free. An optional Zoho Marketplace listing adds discoverability, not API access.
• Apideck-managed credentials: Available for testing — the OAuth consent screen shows "Apideck"; use your own Zoho OAuth client for production.
• Account type required: Active Zoho Books subscription (Free plan or higher)
• Consumer access level: A user with organization-level access in the Zoho Books organization being authorized
• Sandbox: not available — No separate sandbox environment is offered.
• Costs: Free — Zoho charges nothing for API access on any Zoho Books plan, including the Free plan.
• Rate limits: 100 requests/minute per organization; daily cap set by the consumer's plan (1,000 Free to 10,000 Premium); 5 concurrent calls on Free, 10 on paid plans.
• Authentication: OAuth 2.0 (Authorization Code).
• Webhooks: Virtual webhooks — created/updated/deleted events on 10 resources, including invoices, bills, payments, customers and suppliers.

Important to know:

• Zoho hosts each organization in one of seven regional data centres (US, EU, IN, AU, JP, CA, SA — verified June 2026). Apideck resolves the right region during authorization.
• A Zoho Books account can hold several organizations and each is authorized separately, so a consumer running three organizations needs three connections.
• Each consumer's own Zoho Books subscription sets their daily API quota, not yours — you cannot raise it for them. Design syncs around the lowest tier your consumers run on; heavier users unlock more frequent syncs by upgrading their own plan.
• Refresh tokens never expire, but Zoho stores at most 20 per user: authorizing a 21st silently revokes the oldest, which can break a long-standing connection with no error or warning.

Facts synced from Apideck's connector metadata API — GET /connector/connectors/zoho-books (overview field) is the live, authoritative version.

When to use this skill

Activate this skill when the user explicitly wants to work with Zoho Books — for example, "create an invoice in Zoho Books" or "reconcile payments in Zoho Books". This skill teaches the agent:

1. Which Apideck unified API covers Zoho Books (Accounting)
2. The correct serviceId to pass on every call (zoho-books)
3. Zoho Books-specific auth and coverage caveats

For the full method surface (parameters, pagination, filtering), use your language SDK skill:

• apideck-node, apideck-python, apideck-dotnet, apideck-java, apideck-go, apideck-php, or apideck-rest

For the raw OpenAPI spec:

• Accounting: https://specs.apideck.com/accounting.yml · API Explorer

Minimal example (TypeScript)

import { Apideck } from "@apideck/unify";

const apideck = new Apideck({
  apiKey: process.env.APIDECK_API_KEY,
  appId: process.env.APIDECK_APP_ID,
  consumerId: "your-consumer-id",
});

// List invoices in Zoho Books
const { data } = await apideck.accounting.invoices.list({
  serviceId: "zoho-books",
});

Portable across 34 Accounting connectors

The Apideck Accounting unified API exposes the same methods for every connector in its catalog. Switching from Zoho Books to another Accounting connector is a one-string change — no rewrite, no new SDK.

// Today — Zoho Books
await apideck.accounting.invoices.list({ serviceId: "zoho-books" });

// Tomorrow — same code, different connector
await apideck.accounting.invoices.list({ serviceId: "access-financials" });
await apideck.accounting.invoices.list({ serviceId: "acumatica" });

This is the compounding advantage of using Apideck over integrating Zoho Books directly: code against the unified Accounting API once, gain access to every connector in it. New connectors Apideck adds become available to your app without code changes.

Zoho Books via Apideck Accounting

Zoho Books is Zoho's accounting product, part of the Zoho One suite. Strong in India and emerging markets, with multi-currency and multi-entity support.

Entity mapping

Coverage highlights

• ✅ Full CRUD on invoices, bills, payments, customers, suppliers
• ✅ Journal entries
• ✅ Multi-currency
• ✅ Purchase orders
• ✅ GST / VAT handling (India and other regions)
• ⚠️ Recurring invoices — not exposed; use Proxy
• ❌ Projects and time tracking — separate Zoho products (Zoho Projects, Zoho People)
• ❌ Expense claim workflow — use Proxy with Zoho Expense API

Auth notes

• Type: OAuth 2.0, managed by Apideck Vault
• Data center / region: Zoho is sharded by region (US, EU, IN, AU, CN, JP). The user's data center is determined during OAuth; wrong-DC errors mean re-authorization is needed.
• Organization binding: one Zoho Books organization per connection.
• Zoho One: users on Zoho One share auth across Zoho apps — connecting Books doesn't automatically connect CRM/People etc.

Example: create an invoice with tax

const { data } = await apideck.accounting.invoices.create({
  serviceId: "zoho-books",
  invoice: {
    customer_id: "contact_abc",
    invoice_date: "2026-04-18",
    line_items: [
      { description: "Software license", quantity: 1, unit_price: 500, tax_rate: { id: "tax_gst_18" } },
    ],
    currency: "INR",
  },
});

Escape hatch: Proxy API

When an endpoint isn't covered by the Accounting unified API, use Apideck's Proxy to call Zoho Books directly — Apideck injects auth headers and handles token refresh. Set x-apideck-downstream-url to the target endpoint on Zoho Books's own API:

curl 'https://unify.apideck.com/proxy' \
  -H "Authorization: Bearer ${APIDECK_API_KEY}" \
  -H "x-apideck-app-id: ${APIDECK_APP_ID}" \
  -H "x-apideck-consumer-id: ${CONSUMER_ID}" \
  -H "x-apideck-service-id: zoho-books" \
  -H "x-apideck-downstream-url: <target endpoint on Zoho Books>" \
  -H "x-apideck-downstream-method: GET"

See Zoho Books's API docs for available endpoints.

Sibling connectors

Other Accounting connectors that share this unified API surface (same method signatures, just change serviceId):

access-financials (beta), acumatica (beta), banqup (beta), campfire (beta), clearbooks-uk (beta), digits (beta), dualentry, exact-online, and 25 more.

See also

• Accounting OpenAPI spec · API Explorer
• apideck-connector-coverage — programmatic coverage checks
• apideck-best-practices — architecture, Vault, pagination, error handling
• apideck-node — TypeScript / Node SDK patterns
• Zoho Books official docs