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FreshBooks Webhooks (Callbacks API)

Event delivery surface for the FreshBooks Callbacks API. Subscribers register an HTTPS endpoint, complete a verifier handshake, and then receive HMAC-SHA256 signed POSTs (application/x-www-form-urlencoded) for noun.verb events across bills, bill vendors, categories, clients, credit notes, estimates, expenses, invoices, items, payments, projects, recurring templates, services, taxes, and time entries.

FreshBooks Webhooks (Callbacks API) is one of 13 APIs that FreshBooks publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Webhook, Event, Callbacks, Accounting, and Invoicing. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Requests are made against the base URL https://api.freshbooks.com.

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI
Base URL
https://api.freshbooks.com

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

freshbooks-webhooks-asyncapi.yml Raw ↑

Other APIs FreshBooks publishes across the network.

FreshBooks REST API
FreshBooks Auth API
FreshBooks Clients API
FreshBooks Estimates API
FreshBooks Expenses API
FreshBooks Invoices API
FreshBooks Items API
FreshBooks Payments API
FreshBooks Projects API
FreshBooks Tasks API
FreshBooks Taxes API
FreshBooks TimeEntries API
Where this information came from

This is an independent, third-party profile of FreshBooks Webhooks (Callbacks API), 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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