Applications › Accounting & Invoicing

Accounting & Invoicing

What 9 leading Accounting & Invoicing apps are built on: the providers each one ships in its code or lists as an integration, grouped by layer and capability, and joined to the catalog.

9 reference apps 88 providers 82 observed in code 6 declared only 98.9% in the catalog 52.4 mean Kin Score 44 with a verified MCP server

How to read this. observed the integration ships in the app (SDK in a dependency file, source code, or an Android build analysis). declared the app names the integration itself (README, integrations page, store listing). Every row links the source it was read from. Providers not yet in the catalog are marked queued for profiling. Blueprint by API Evangelist, CC BY-NC-SA 4.0. Capabilities marked Turbo EA come from Turbo EA Capabilities by Vincent Verdet, CC BY 4.0 (notice); those marked API Evangelist extension are CC BY-NC-SA 4.0. Android build analyses: Exodus Privacy (reports.exodus-privacy.eu.org).

domain layer 5 capabilities

Payment Processing Management 26 providers · BC-1340.20 · Turbo EA

Payment Processing Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Stripe	observed [1] [2] [3]	Invoice Ninja, SolidInvoice, Xero, Zoho Invoice	82.7 exemplar	58.5 agent-native	verified
PayPal	observed [1] [2] [3]	Akaunting, Invoice Ninja, SolidInvoice, Zoho Invoice	52.9 developing	37.1 agent-ready	verified
Authorize.net	observed [1] [2] [3]	Invoice Ninja, SolidInvoice, Zoho Invoice	34.7 thin	25.9 agent-aware	verified
Square	observed [1] [2]	Invoice Ninja, Zoho Invoice	79.7 exemplar	62.8 agent-native	verified
GoCardless	observed [1] [2]	Invoice Ninja, Xero	52.1 developing	51.3 agent-ready	verified
CSG Forte	observed [1] [2]	Invoice Ninja, Zoho Invoice	46.0 developing	22.3 agent-aware	none found
Braintree	observed [1] [2]	Invoice Ninja, Zoho Invoice	40.1 developing	52.0 agent-ready	none found
Klarna	observed [1]	SolidInvoice	73.6 exemplar	46.0 agent-native	none found
Mollie	observed [1]	Invoice Ninja	67.5 exemplar	73.2 agent-native	verified
Helcim	observed [1]	Invoice Ninja	53.0 developing	41.3 agent-native	none found
Razorpay	observed [1]	Invoice Ninja	52.4 developing	26.8 agent-aware	verified
eWAY	observed [1]	Invoice Ninja	49.0 developing	5.4 agent-aware	none found
Commonwealth Bank (PowerBoard)	observed [1]	Invoice Ninja	39.4 developing	30.5 agent-ready	none found
CHIP (chip-in.asia)	observed [1]	Invoice Ninja	38.6 thin	7.9 agent-aware	none found
LawPay	observed [1]	Invoice Ninja	37.9 thin	14.7 agent-aware	none found
BTCPay Server	observed [1]	Invoice Ninja	36.2 thin	29.2 agent-ready	none found
Be2bill (Dalenys)	observed [1]	SolidInvoice	35.9 thin	24.1 agent-aware	verified
Rotessa	observed [1]	Invoice Ninja	34.9 thin	23.6 agent-aware	none found
Checkout.com	observed [1]	Invoice Ninja	31.9 thin	47.5 agent-native	verified
PayEx (Swedbank Pay)	observed [1]	SolidInvoice	27.6 thin	12.7 agent-aware	none found
PayFast	observed [1]	Invoice Ninja	27.5 thin	23.8 agent-aware	none found
Blockonomics	observed [1]	Invoice Ninja	24.1 emerging	0.0 human-only	none found
PayTrace	observed [1]	Invoice Ninja	20.7 emerging	0.0 human-only	none found
WePay	observed [1]	Invoice Ninja	0.0 minimal	0.0 human-only	none found
Verifone (2Checkout)	declared [1]	Zoho Invoice	35.1 thin	38.1 agent-ready	none found
Zoho Payments	declared [1]	Zoho Invoice	24.5 emerging	10.8 agent-aware	—

Invoice Generation Management 5 providers · BC-4330.50 · Turbo EA

Invoice Generation Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
FreshBooks	observed [1]	Invoice Ninja	31.2 thin	20.1 agent-aware	none found
Wave Financial	observed [1]	Invoice Ninja	28.1 thin	16.1 agent-aware	none found
Zoho Invoice	observed [1]	Invoice Ninja	27.2 thin	18.9 agent-aware	verified
Invoicely	observed [1]	Invoice Ninja	22.0 emerging	0.0 human-only	—
Invoice2go	observed [1]	Invoice Ninja	17.4 emerging	0.0 human-only	none found

General Ledger Management 1 providers · BC-200.10 · Turbo EA

General Ledger Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
QuickBooks Online	observed [1] [2]	Invoice Ninja, Zoho Invoice	34.2 thin	19.7 agent-aware	verified

Reconciliation Management 2 providers · BC-1380.70 · Turbo EA

Reconciliation Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Plaid	observed [1]	ERPNext	84.6 exemplar	52.1 agent-native	verified
Nordigen (GoCardless Bank Account Data)	observed [1]	Invoice Ninja	5.1 minimal	0.0 human-only	verified

OCR & Document AI 1 providers · AE-110.40.20 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Mindee	observed [1]	Invoice Ninja	54.7 strong	31.3 agent-ready	none found

common layer 19 capabilities

Transactional Email 7 providers · AE-150.10.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Postmark	observed [1] [2] [3]	Akaunting, Invoice Ninja, SolidInvoice	70.3 exemplar	41.7 agent-ready	verified
Mailgun	observed [1] [2] [3]	Akaunting, Invoice Ninja, SolidInvoice	30.9 thin	19.0 agent-aware	verified
SendGrid	observed [1] [2]	Akaunting, SolidInvoice	87.5 exemplar	40.1 agent-ready	none found
Brevo	observed [1] [2]	Invoice Ninja, SolidInvoice	82.4 exemplar	57.2 agent-ready	verified
Amazon SES	observed [1]	SolidInvoice	80.6 exemplar	39.4 agent-ready	none found
Mailchimp (Mandrill)	observed [1]	SolidInvoice	78.8 exemplar	42.3 agent-ready	none found
Mailjet	observed [1]	SolidInvoice	46.5 developing	23.4 agent-aware	verified

SMS 9 providers · AE-150.20.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Twilio	observed [1] [2]	Invoice Ninja, SolidInvoice	93.2 exemplar	56.4 agent-native	verified
Telnyx	observed [1]	SolidInvoice	95.4 exemplar	79.5 agent-native	verified
Infobip	observed [1]	SolidInvoice	86.4 exemplar	61.3 agent-ready	verified
Sinch	observed [1]	SolidInvoice	71.7 exemplar	61.2 agent-native	verified
Vonage	observed [1]	SolidInvoice	71.3 exemplar	40.8 agent-ready	verified
Amazon SNS	observed [1]	SolidInvoice	55.1 strong	29.4 agent-ready	verified
Bird (MessageBird)	observed [1]	SolidInvoice	48.6 developing	65.2 agent-ready	verified
Esendex	observed [1]	SolidInvoice	38.7 thin	18.5 agent-aware	none found
Clickatell	observed [1]	SolidInvoice	38.4 thin	26.7 agent-aware	none found

Observability Management 5 providers · BC-4220.20 · Turbo EA

Observability Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Sentry	observed [1] [2] [3]	Akaunting, Invoice Ninja, SolidInvoice, Xero, Zoho Invoice	80.6 exemplar	50.2 agent-ready	verified
Bugsnag	observed [1]	Akaunting	78.5 exemplar	53.1 agent-ready	verified
New Relic	observed [1]	Xero	76.7 exemplar	45.7 agent-ready	verified
Splunk	observed [1]	QuickBooks	64.9 strong	48.0 agent-ready	none found
AppDynamics	observed [1]	QuickBooks	36.5 thin	19.3 agent-aware	none found

Product Usage Analytics 5 providers · BC-4280.30 · Turbo EA

Product Usage Analytics capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Firebase	observed [1] [2] [3]	FreshBooks, QuickBooks, Xero	50.3 developing	14.2 agent-aware	verified
Google Analytics	observed [1] [2]	FreshBooks, QuickBooks	72.1 exemplar	41.8 agent-ready	verified
Amplitude	observed [1]	QuickBooks	63.5 strong	56.7 agent-ready	verified
Pendo	observed [1]	Xero	54.8 strong	35.4 agent-ready	verified
Segment	observed [1]	QuickBooks	43.8 developing	26.8 agent-aware	none found

Internal Communications Management 6 providers · BC-850.10 · Turbo EA

Internal Communications Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Slack	observed [1] [2]	Akaunting, SolidInvoice	73.2 exemplar	38.7 agent-ready	verified
LinkedIn	observed [1]	SolidInvoice	74.8 exemplar	44.4 agent-ready	none found
Microsoft Teams	observed [1]	SolidInvoice	56.2 strong	34.2 agent-ready	none found
Google Chat	observed [1]	SolidInvoice	51.6 developing	19.6 agent-aware	verified
Discord	observed [1]	SolidInvoice	46.4 developing	30.6 agent-ready	none found
Telegram	observed [1]	SolidInvoice	38.0 thin	19.6 agent-aware	none found

Mailbox & Calendar Sync 3 providers · AE-150.80 · API Evangelist extension

Mailbox & Calendar Sync capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google (API client)	observed [1]	Invoice Ninja	70.1 exemplar	45.4 agent-ready	verified
Microsoft Graph	observed [1]	Invoice Ninja	61.0 strong	32.7 agent-ready	verified
Gmail	declared [1]	Zoho Invoice	44.1 developing	19.6 agent-aware	verified

Mobile Attribution & Deep Linking 3 providers · AE-902 · API Evangelist extension

Mobile Attribution & Deep Linking capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
AppsFlyer	observed [1]	Xero	69.8 exemplar	46.4 agent-ready	verified
Adjust	observed [1]	FreshBooks	30.8 thin	23.8 agent-aware	none found
Kochava queued for profiling	observed [1]	QuickBooks	—	—	—

Tenant Identity Federation 3 providers · BC-4230.50 · Turbo EA

Tenant Identity Federation capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Microsoft Entra ID	observed [1]	Invoice Ninja	60.0 strong	26.4 agent-aware	none found
Apple	observed [1]	Invoice Ninja	55.2 strong	31.9 agent-ready	none found
Facebook	observed [1]	QuickBooks	42.7 developing	28.2 agent-aware	none found

Asset Storage & Tiering 1 providers · BC-3710.30 · Turbo EA

Asset Storage & Tiering capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Amazon Web Services	observed [1] [2]	Crater, Invoice Ninja	60.9 strong	40.8 agent-ready	verified

Customer Lifecycle Engagement 2 providers · BC-4260.40 · Turbo EA

Customer Lifecycle Engagement capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Salesforce Marketing Cloud	observed [1]	Xero	80.7 exemplar	56.8 agent-ready	none found
Braze	observed [1]	QuickBooks	73.5 exemplar	56.9 agent-ready	verified

End-User Computing Management 2 providers · BC-600.50.50 · Turbo EA

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google Workspace	declared [1]	Zoho Invoice	61.9 strong	27.6 agent-aware	verified
Microsoft 365	declared [1]	Zoho Invoice	39.4 developing	23.9 agent-aware	verified

In-App Purchases & App Store Billing 2 providers · AE-904 · API Evangelist extension

In-App Purchases & App Store Billing capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Apple	observed [1]	Invoice Ninja	55.2 strong	31.9 agent-ready	none found
Google Play	observed [1]	Invoice Ninja	31.6 thin	24.6 agent-aware	none found

Geocoding 1 providers · AE-120.10 · API Evangelist extension

Geocoding capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google Maps	observed [1]	ERPNext	49.7 developing	24.5 agent-aware	verified

Media Asset Management 1 providers · BC-3710 · Turbo EA

Media Asset Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
YouTube	observed [1]	ERPNext	59.6 strong	38.4 agent-ready	none found

Push Notifications 1 providers · AE-150.30 · API Evangelist extension

Push Notifications capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Firebase (FCM)	observed [1]	SolidInvoice	50.3 developing	14.2 agent-aware	verified

Realtime Messaging 1 providers · AE-150.70 · API Evangelist extension

Realtime Messaging capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Pusher	observed [1]	Invoice Ninja	38.6 thin	20.7 agent-aware	none found

Tag Management 1 providers · AE-911 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google Tag Manager	observed [1]	FreshBooks	63.6 strong	38.2 agent-ready	none found

Tenant Backup & Export Management 1 providers · BC-4230.60 · Turbo EA

Tenant Backup & Export Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Dropbox	observed [1]	Crater	47.5 developing	45.8 agent-ready	verified

Workflow Automation & iPaaS 1 providers · AE-910 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Zapier	declared [1]	Zoho Invoice	73.7 exemplar	66.2 agent-ready	verified

Reference apps

Invoice Ninja open-source-saas

https://github.com/invoiceninja/invoiceninja

43 observed · 0 declared

observed ships the Amazon Web Services SDK or integration code source
observed ships the Apple SDK or integration code source
observed ships the Apple SDK or integration code source
observed ships the Authorize.net SDK or integration code source
observed ships the Blockonomics SDK or integration code source
observed ships the Braintree SDK or integration code source
observed ships the Brevo SDK or integration code source
observed ships the BTCPay Server SDK or integration code source
observed ships the Checkout.com SDK or integration code source
observed ships the CHIP (chip-in.asia) SDK or integration code source
observed ships the Commonwealth Bank (PowerBoard) SDK or integration code source
observed ships the CSG Forte SDK or integration code source
observed ships the eWAY SDK or integration code source
observed ships the FreshBooks SDK or integration code source
observed ships the GoCardless SDK or integration code source
observed ships the Google (API client) SDK or integration code source
observed ships the Google Play SDK or integration code source
observed ships the Helcim SDK or integration code source
observed ships the Invoice2go SDK or integration code source
observed ships the Invoicely SDK or integration code source
observed ships the LawPay SDK or integration code source
observed ships the Mailgun SDK or integration code source
observed ships the Microsoft Entra ID SDK or integration code source
observed ships the Microsoft Graph SDK or integration code source
observed ships the Mindee SDK or integration code source
observed ships the Mollie SDK or integration code source
observed ships the Nordigen (GoCardless Bank Account Data) SDK or integration code source
observed ships the PayFast SDK or integration code source
observed ships the PayPal SDK or integration code source
observed ships the PayTrace SDK or integration code source
observed ships the Postmark SDK or integration code source
observed ships the Pusher SDK or integration code source
observed ships the QuickBooks Online SDK or integration code source
observed ships the Razorpay SDK or integration code source
observed ships the Rotessa SDK or integration code source
observed ships the Sentry SDK or integration code source
observed ships the Sentry SDK or integration code source
observed ships the Square SDK or integration code source
observed ships the Stripe SDK or integration code source
observed ships the Twilio SDK or integration code source
observed ships the Wave Financial SDK or integration code source
observed ships the WePay SDK or integration code source
observed ships the Zoho Invoice SDK or integration code source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org), dependency manifest, source code, source code, source code

Akaunting self-hosted

https://github.com/akaunting/akaunting

7 observed · 0 declared

observed ships the Bugsnag SDK or integration code source
observed ships the Mailgun SDK or integration code source
observed ships the PayPal SDK or integration code source
observed ships the Postmark SDK or integration code source
observed ships the SendGrid SDK or integration code source
observed ships the Sentry SDK or integration code source
observed ships the Slack SDK or integration code source

Read from: dependency manifest, integrations page

Crater self-hosted

https://github.com/crater-invoice/crater

2 observed · 0 declared

observed ships the Amazon Web Services SDK or integration code source
observed ships the Dropbox SDK or integration code source

Read from: dependency manifest, documentation

ERPNext open-source-saas

https://github.com/frappe/erpnext

3 observed · 0 declared

observed ships the Google Maps SDK or integration code source
observed ships the Plaid SDK or integration code source
observed ships the YouTube SDK or integration code source

Read from: dependency manifest, documentation, source code

SolidInvoice self-hosted

https://github.com/SolidInvoice/SolidInvoice

30 observed · 0 declared

observed ships the Amazon SES SDK or integration code source
observed ships the Amazon SNS SDK or integration code source
observed ships the Authorize.net SDK or integration code source
observed ships the Be2bill (Dalenys) SDK or integration code source
observed ships the Bird (MessageBird) SDK or integration code source
observed ships the Brevo SDK or integration code source
observed ships the Clickatell SDK or integration code source
observed ships the Discord SDK or integration code source
observed ships the Esendex SDK or integration code source
observed ships the Firebase (FCM) SDK or integration code source
observed ships the Google Chat SDK or integration code source
observed ships the Infobip SDK or integration code source
observed ships the Klarna SDK or integration code source
observed ships the LinkedIn SDK or integration code source
observed ships the Mailchimp (Mandrill) SDK or integration code source
observed ships the Mailgun SDK or integration code source
observed ships the Mailjet SDK or integration code source
observed ships the Microsoft Teams SDK or integration code source
observed ships the PayEx (Swedbank Pay) SDK or integration code source
observed ships the PayPal SDK or integration code source
observed ships the Postmark SDK or integration code source
observed ships the SendGrid SDK or integration code source
observed ships the Sentry SDK or integration code source
observed ships the Sinch SDK or integration code source
observed ships the Slack SDK or integration code source
observed ships the Stripe SDK or integration code source
observed ships the Telegram SDK or integration code source
observed ships the Telnyx SDK or integration code source
observed ships the Twilio SDK or integration code source
observed ships the Vonage SDK or integration code source

Read from: dependency manifest

Xero commercial

https://www.xero.com/

6 observed · 2 declared

observed ships the AppsFlyer SDK or integration code source
observed ships the Firebase SDK or integration code source
observed ships the New Relic SDK or integration code source
observed ships the Pendo SDK or integration code source
observed ships the Salesforce Marketing Cloud SDK or integration code source
observed ships the Sentry SDK or integration code source
declared lists GoCardless as an integration source
declared lists Stripe as an integration source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org), documentation, integrations page

QuickBooks commercial

https://quickbooks.intuit.com/

9 observed · 0 declared

observed ships the Amplitude SDK or integration code source
observed ships the AppDynamics SDK or integration code source
observed ships the Braze SDK or integration code source
observed ships the Facebook SDK or integration code source
observed ships the Firebase SDK or integration code source
observed ships the Google Analytics SDK or integration code source
observed ships the Kochava SDK or integration code source
observed ships the Segment SDK or integration code source
observed ships the Splunk SDK or integration code source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org)

FreshBooks commercial

https://www.freshbooks.com/

4 observed · 0 declared

observed ships the Adjust SDK or integration code source
observed ships the Firebase SDK or integration code source
observed ships the Google Analytics SDK or integration code source
observed ships the Google Tag Manager SDK or integration code source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org), integrations page

Zoho Invoice commercial

https://www.zoho.com/invoice/

1 observed · 13 declared

observed ships the Sentry SDK or integration code source
declared lists Authorize.net as an integration source
declared lists Braintree as an integration source
declared lists CSG Forte as an integration source
declared lists Gmail as an integration source
declared lists Google Workspace as an integration source
declared lists Microsoft 365 as an integration source
declared lists PayPal as an integration source
declared lists QuickBooks Online as an integration source
declared lists Square as an integration source
declared lists Stripe as an integration source
declared lists Verifone (2Checkout) as an integration source
declared lists Zapier as an integration source
declared lists Zoho Payments as an integration source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org), documentation

What these apps expose to agents

Xero: first-party xero-mcp-server (XeroAPI org) declared source
QuickBooks: first-party quickbooks-online-mcp-server (Intuit org) declared source
Zoho Invoice: Zoho MCP spans Zoho apps incl. Invoice declared source

Where these apps are listed

google-play: Business
google-play: Finance
apple-app-store: Business
awesome-selfhosted: Money, Budgeting & Management
zapier: Accounting