Sage
Sage provides cloud-based ERP, accounting, payroll, and HR software for businesses worldwide. The Sage Developer program provides APIs for integrating with Sage products including Sage Accounting (Business Cloud), Sage Intacct, Sage 200, Sage X3, and Sage 50. APIs support OAuth 2.0 authentication and cover contacts, invoices, payments, ledger accounts, bank accounts, products, and financial reporting. Sage Accounting API v3.1 is the current supported REST version with daily limits of 1,296,000 requests per app.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Sage the way a machine reads it — 85 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Sage scores 41.7/100 (developing), with a separate agent-readiness read of 32/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Sage
Each block below is one kind of artifact we hold for Sage. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 13
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Sage Intacct API
Sage Intacct provides both REST and XML APIs for advanced financial management including multi-entity consolidations, project accounting, revenue recognition, and advanced repor...
Sage X3 API
Sage X3 provides a GraphQL API offering flexible data access for ERP operations including manufacturing, distribution, procurement, finance, and CRM. Supports SOAP API for legac...
Sage 200 API
Sage 200 API provides REST access to Sage 200 Standard and Professional business management data including customers, suppliers, stock, sales orders, purchase orders, nominal le...
Sage 50 Accounts API
Sage 50 Accounts API enables desktop accounting integration for UK small businesses. Provides access to accounts, transactions, customers, suppliers, products, and financial dat...
Sage Bank Accounts API
Bank account and transaction management
Sage Business API
Business settings and configuration
Sage Contacts API
Customer and supplier contact management
Sage Ledger Accounts API
Chart of accounts and ledger management
Sage Payments API
Customer and supplier payment recording
Sage Products API
Product and service catalog management
Sage Purchase Invoices API
Purchase invoice and supplier bill management
Sage Sales Invoices API
Sales invoice creation and management
Sage Tax Rates API
Tax rate configuration
Scroll within the panel for all 13 ·
Open Collections 11
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONSage Accounting API
OPEN COLLECTIONSage Accounting Bank Accounts API
OPEN COLLECTIONSage Accounting Bank Accounts Business API
OPEN COLLECTIONSage Accounting Bank Accounts Contacts API
OPEN COLLECTIONSage Accounting Bank Accounts Ledger Accounts API
OPEN COLLECTIONSage Accounting Bank Accounts Payments API
OPEN COLLECTIONSage Accounting Bank Accounts Products API
OPEN COLLECTIONSage Accounting Bank Accounts Purchase Invoices API
OPEN COLLECTIONSage Accounting Bank Accounts Sales Invoices API
OPEN COLLECTIONSage Accounting Bank Accounts Tax Rates API
OPEN COLLECTIONScroll within the panel for all 11 ·
GraphQL 1
Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.
GraphQL schemas published by this provider.
Sage GraphQL API
Sage X3 provides a GraphQL API offering flexible data access for ERP operations including manufacturing, distribution, procurement, finance, and CRM. Supports SOAP API for legac...
GRAPHQLPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Sage Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Sage Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Sage Finops
FINOPSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Sage Webhooks
AsyncAPI 2.6 description of the documented webhook / event surface across Sage developer products. Sage's webhook story is fragmented across product lines and only a subset of p...
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Sage Context
JSON-LDSpectral Rules 3
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
JSON Schema 41
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Address
JSON SCHEMAAddressInput
JSON SCHEMABankAccount
JSON SCHEMABankAccountList
JSON SCHEMABankAccountRef
JSON SCHEMABusiness
JSON SCHEMASage Contact
JSON SCHEMAContactList
JSON SCHEMAContactRef
JSON SCHEMACountryRef
JSON SCHEMACreateBankAccountRequest
JSON SCHEMACreateContactRequest
JSON SCHEMACreateProductRequest
JSON SCHEMACreatePurchaseInvoiceRequest
JSON SCHEMACreateSalesInvoiceRequest
JSON SCHEMACurrencyRef
JSON SCHEMAErrorResponse
JSON SCHEMASage Sales Invoice
JSON SCHEMALedgerAccount
JSON SCHEMALedgerAccountList
JSON SCHEMALedgerAccountRef
JSON SCHEMALineItem
JSON SCHEMALineItemInput
JSON SCHEMAPayment
JSON SCHEMAPaymentRequest
JSON SCHEMAPrice
JSON SCHEMAPriceInput
JSON SCHEMAProduct
JSON SCHEMAProductList
JSON SCHEMAPurchaseInvoice
JSON SCHEMAPurchaseInvoiceList
JSON SCHEMASalesInvoice
JSON SCHEMASalesInvoiceList
JSON SCHEMAStatusRef
JSON SCHEMATaxRate
JSON SCHEMATaxRateList
JSON SCHEMATaxRateRef
JSON SCHEMATypeRef
JSON SCHEMAUpdateContactRequest
JSON SCHEMAUpdateProductRequest
JSON SCHEMAUpdateSalesInvoiceRequest
JSON SCHEMAScroll within the panel for all 41 ·
JSON Structure 3
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Sage Contact Structure
JSON STRUCTURESage Invoice Structure
JSON STRUCTURESage Structure
JSON STRUCTUREExamples 3
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Sage Create Contact Example
EXAMPLESage Record Payment Example
EXAMPLESecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Sage — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 5
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/sage · machine-readable index on apis.io
This is an independent, third-party profile of Sage, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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