Airbase
Airbase is a modern spend management platform for finance teams that combines accounts-payable (AP) automation and bill pay, guided procurement and purchase orders, corporate cards, and expense reimbursements on a single system with real-time general-ledger sync. Airbase Inc. was acquired by Paylocity in a ~$325M deal announced September 4, 2024 and completed October 1, 2024, and now operates as "Airbase by Paylocity," extending Paylocity's HCM suite into the office of the CFO. Airbase exposes a developer platform at developer.airbase.io (REST API reference, OpenAPI/Swagger, Postman and Insomnia collections, a webhooks management API, an OAuth playground, and a sandbox) used to build custom connections for systems not covered by the pre-built integrations. API access is account-gated - credentials are generated inside the customer's Airbase/Paylocity tenant rather than through open self-serve signup - so the logical APIs below are honestly modeled from the documented product surface and developer portal, and the exact endpoint paths and base URL are not publicly reproduced here (endpointsModeled).
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Airbase the way a machine reads it — 13 machine-readable artifacts across 9 APIs, 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 — Airbase scores 19.0/100 (emerging), with a separate agent-readiness read of 7/100 (human only). 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.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Airbase
Each block below is one kind of artifact we hold for Airbase. 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 9
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.
Airbase Bills & AP Automation API
Programmatically create, list, retrieve, and update bills and vendor invoices flowing through Airbase's AP automation - including bill line items, approval state, payment status...
Airbase Purchase Requests & Orders API
Create and track guided purchase requests and purchase orders, including intake details, line items, vendor and GL coding, budget checks, and the approval milestones a request t...
Airbase Vendors API
Manage the vendor/supplier master record - create, list, retrieve, and update vendors, their payment details, tax and onboarding information, and the relationships that bills, p...
Airbase Corporate Cards API
Access Airbase corporate and virtual card programs - list cards, card holders, spend limits and controls, and their associated policies - to reconcile card spend against budgets...
Airbase Transactions API
Pull unified transaction and spend data across cards, bills, and reimbursements - amounts, merchants, dates, GL coding, and reconciliation status - for reporting, analytics, and...
Airbase Expense Reimbursements API
Create and track employee expense reimbursements and out-of-pocket claims - receipts, line items, approval state, and payout status - as part of Airbase's expense management wor...
Airbase Approvals API
Inspect and act on the multi-step approval workflows that gate purchase requests, bills, cards, and reimbursements - approvers, policy rules, current state, and milestone transi...
Airbase GL & Accounting Sync API
Read and push general-ledger coding and accounting records so spend stays in sync with the ERP/GL. Airbase promotes a REST API specifically for building custom ERP/GL connection...
Airbase Webhooks Management API
Register and manage webhook subscriptions so external systems receive Airbase events - for example a purchase request being approved or a workflow transitioning through a milest...
Scroll within the panel for all 9 ·
Pricing 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 six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Rate 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.
Airbase 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.
Airbase Finops
FINOPSSecurity Posture 1
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.
Resources
Every other property we hold for Airbase — 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.
Documentation 1
Reference material describing how the API behaves
Access & Security 1
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/airbase · machine-readable index on apis.io