Billogram website screenshot

Billogram

Billogram is a Swedish (Billogram AB) Invoice-to-Cash orchestration platform that automates the full invoicing and payment lifecycle for businesses with recurring revenue - invoice creation and distribution, digital payment collection, customer communication, reminders and dunning, e-invoice registration, and financial reporting. It serves the insurance, telecom, mobility/parking, and energy sectors. The Billogram v2 API is a RESTful JSON API (HTTP Basic Auth) covering customers, billograms/invoices, items, credit invoices, payment sources, offers, billing tabs, reports, and HMAC-signed webhooks, with separate sandbox and production environments and an official Python client library.

Billogram publishes 1 API on the APIs.io network. Tagged areas include Company, Applicative Saas, Invoicing, Billing, and Payments.

The Billogram catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Billogram’s developer surface includes documentation, API reference, getting-started guide, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
30.5/100 thin ▬ flat Agent 6/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs
CompanyApplicative SaasInvoicingBillingPaymentsInvoice-to-CashE-invoicingFintechWebhooks

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 30.5/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 8.7 / 20
Commercial Clarity 4.7 / 20
Operational Transparency 1.4 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 6/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/billogram: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Billogram v2 API

RESTful JSON API for managing invoices (billograms), customers, items, credit invoices, payment sources, offers, billing tabs, reports, and webhooks. Authenticated with HTTP Bas...

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Billogram Webhooks

ASYNCAPI

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Billogram Authentication

http · 1 scheme

SECURITY

Billogram Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Billogram Vulnerability Disclosure

Hackerone

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Build 2

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: billogram
name: Billogram
description: Billogram is a Swedish (Billogram AB) Invoice-to-Cash orchestration platform that automates the full invoicing
  and payment lifecycle for businesses with recurring revenue - invoice creation and distribution, digital payment collection,
  customer communication, reminders and dunning, e-invoice registration, and financial reporting. It serves the insurance,
  telecom, mobility/parking, and energy sectors. The Billogram v2 API is a RESTful JSON API (HTTP Basic Auth) covering customers,
  billograms/invoices, items, credit invoices, payment sources, offers, billing tabs, reports, and HMAC-signed webhooks, with
  separate sandbox and production environments and an official Python client library.
url: https://raw.githubusercontent.com/api-evangelist/billogram/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- partech
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://billogram.com/static/images/billogram-og_@2X.png
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Applicative Saas
- Invoicing
- Billing
- Payments
- Invoice-to-Cash
- E-invoicing
- Fintech
- Webhooks
apis:
- name: Billogram v2 API
  description: RESTful JSON API for managing invoices (billograms), customers, items, credit invoices, payment sources, offers,
    billing tabs, reports, and webhooks. Authenticated with HTTP Basic Auth (API User ID + API Key) over HTTPS, with separate
    sandbox and production environments.
  humanURL: https://docs.billogram.com/
  baseURL: https://billogram.com/api/v2
  tags:
  - Invoicing
  - Billing
  - Payments
  properties:
  - type: Authentication
    url: authentication/billogram-authentication.yml
  - type: Conventions
    url: conventions/billogram-conventions.yml
  - type: ErrorCatalog
    url: errors/billogram-problem-types.yml
  - type: Webhooks
    url: asyncapi/billogram-webhooks.yml
  - type: Sandbox
    url: sandbox/billogram-sandbox.yml
  - type: Lifecycle
    url: lifecycle/billogram-lifecycle.yml
  - type: Conformance
    url: conformance/billogram-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://billogram.com/
- type: DeveloperPortal
  url: https://docs.billogram.com/
- type: Documentation
  url: https://docs.billogram.com/
- type: APIReference
  url: https://docs.billogram.com/api
- type: GettingStarted
  url: https://docs.billogram.com/guides/getting-started
- type: Blog
  url: https://billogram.com/blog
- type: Login
  url: https://billogram.com/login
- type: PrivacyPolicy
  url: https://billogram.com/privacy
- type: Packages
  url: packages/billogram-packages.yml
- type: SDKs
  url: packages/billogram-packages.yml
- type: LLMsTxt
  url: llms/billogram-llms.txt
- type: DomainSecurity
  url: security/billogram-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/billogram-vulnerability-disclosure.yml
- type: Security
  url: security/billogram-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence