Sibill

Sibill is an Italian fintech platform that centralizes financial and administrative management for small and medium-sized businesses (PMI). It unifies electronic invoicing (submitted to the Agenzia delle Entrate SDI), treasury and cash-flow monitoring, payments, business accounts and debit cards, and AI-assisted reconciliation of bank transactions against invoices and deadlines. The Sibill Integration API exposes companies, bank accounts, categories, counterparts, documents, payment flows, reconciliations, products and transactions over a REST interface secured with Bearer API keys, with cursor pagination, field expansion, and Document/Flow webhooks. Backed by Creandum.

Sibill publishes 12 APIs on the APIs.io network, including Account API, Category API, Company API, and 9 more. Tagged areas include Company, Fintech, Invoicing, Payments, and Reconciliation.

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

Sibill’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.5/100 developing ▬ flat Agent 45/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessSelf serve

12 APIs 1 MCP Servers

CompanyFintechInvoicingPaymentsReconciliationAccountingBankingSMEOpen BankingElectronic InvoicingItaly

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 51.5/100 · developing

Contract Quality 12.4 / 21

Developer Ergonomics 11.2 / 17

Access Clarity 6.5 / 17

Operational Transparency 4.9 / 11

Contract Governance 1.7 / 10

Discoverability 6.9 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 45/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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/sibill: 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 12

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

Open Collections 13

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Sibill MCP Server

MCP SERVER

Rate Limits 1

Documented rate limits and quota policies.

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

WellKnown

LLMsTxt

AgenticAccess

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

DataModel

Conformance

Webhooks

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: sibill
name: Sibill
description: Sibill is an Italian fintech platform that centralizes financial and administrative management for small and
  medium-sized businesses (PMI). It unifies electronic invoicing (submitted to the Agenzia delle Entrate SDI), treasury and
  cash-flow monitoring, payments, business accounts and debit cards, and AI-assisted reconciliation of bank transactions against
  invoices and deadlines. The Sibill Integration API exposes companies, bank accounts, categories, counterparts, documents,
  payment flows, reconciliations, products and transactions over a REST interface secured with Bearer API keys, with cursor
  pagination, field expansion, and Document/Flow webhooks. Backed by Creandum.
url: https://raw.githubusercontent.com/api-evangelist/sibill/refs/heads/main/apis.yml
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://sibill.com/wp-content/uploads/2025/10/monogramma_purple.jpg
x-type: company
x-source: vc-portfolio
x-backed-by:
- creandum
x-tier: enriched
x-tier-reason: has-openapi-and-artifacts
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 22
  pass: local-v1
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Fintech
- Invoicing
- Payments
- Reconciliation
- Accounting
- Banking
- SME
- Open Banking
- Electronic Invoicing
- Italy
apis:
- aid: sibill:sibill-account-api
  name: Sibill Account API
  description: The Account API from Sibill — 2 operation(s) for account.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/sibill-account-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-category-api
  name: Sibill Category API
  description: The Category API from Sibill — 2 operation(s) for category.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Category
  properties:
  - type: OpenAPI
    url: openapi/sibill-category-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-company-api
  name: Sibill Company API
  description: The Company API from Sibill — 1 operation(s) for company.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Company
  properties:
  - type: OpenAPI
    url: openapi/sibill-company-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-counterpart-api
  name: Sibill Counterpart API
  description: The Counterpart API from Sibill — 3 operation(s) for counterpart.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Counterpart
  properties:
  - type: OpenAPI
    url: openapi/sibill-counterpart-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-document-api
  name: Sibill Document API
  description: The Document API from Sibill — 5 operation(s) for document.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Document
  properties:
  - type: OpenAPI
    url: openapi/sibill-document-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-documentsectional-api
  name: Sibill DocumentSectional API
  description: The DocumentSectional API from Sibill — 2 operation(s) for documentsectional.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - DocumentSectional
  properties:
  - type: OpenAPI
    url: openapi/sibill-documentsectional-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-flow-api
  name: Sibill Flow API
  description: The Flow API from Sibill — 2 operation(s) for flow.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Flow
  properties:
  - type: OpenAPI
    url: openapi/sibill-flow-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-payment-api
  name: Sibill Payment API
  description: The Payment API from Sibill — 2 operation(s) for payment.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Payment
  properties:
  - type: OpenAPI
    url: openapi/sibill-payment-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-product-api
  name: Sibill Product API
  description: The Product API from Sibill — 2 operation(s) for product.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Product
  properties:
  - type: OpenAPI
    url: openapi/sibill-product-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-reconciliation-api
  name: Sibill Reconciliation API
  description: The Reconciliation API from Sibill — 2 operation(s) for reconciliation.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Reconciliation
  properties:
  - type: OpenAPI
    url: openapi/sibill-reconciliation-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-subcategory-api
  name: Sibill Subcategory API
  description: The Subcategory API from Sibill — 2 operation(s) for subcategory.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Subcategory
  properties:
  - type: OpenAPI
    url: openapi/sibill-subcategory-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
- aid: sibill:sibill-transaction-api
  name: Sibill Transaction API
  description: The Transaction API from Sibill — 2 operation(s) for transaction.
  humanURL: https://docs.sibill.com/
  baseURL: https://integration.sibill.com/api/v1
  tags:
  - Transaction
  properties:
  - type: OpenAPI
    url: openapi/sibill-transaction-api-openapi.yml
  - type: Documentation
    url: https://docs.sibill.com/
  - type: APIReference
    url: https://docs.sibill.com/api-reference
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DeveloperPortal
  url: https://docs.sibill.com/
- type: Documentation
  url: https://docs.sibill.com/
- type: APIReference
  url: https://docs.sibill.com/api-reference
- type: GettingStarted
  url: https://docs.sibill.com/quickstarts/quickstarts-step-by-step
- type: Support
  url: https://docs.sibill.com/faqs
- type: Blog
  url: https://sibill.com/blog/
- type: Pricing
  url: https://sibill.com/pricing/
- type: SignUp
  url: https://app.sibill.com/signup
- type: Login
  url: https://app.sibill.com/login
- type: TermsOfService
  url: https://sibill.com/termini-e-condizioni/
- type: PrivacyPolicy
  url: https://www.iubenda.com/privacy-policy/16454324
- type: Authentication
  url: authentication/sibill-authentication.yml
- type: ChangeLog
  url: changelog/sibill-changelog.yml
- type: Lifecycle
  url: lifecycle/sibill-lifecycle.yml
- type: RateLimits
  url: rate-limits/sibill-rate-limits.yml
- type: Conventions
  url: conventions/sibill-conventions.yml
- type: ErrorCatalog
  url: errors/sibill-problem-types.yml
- type: DataModel
  url: data-model/sibill-data-model.yml
- type: Conformance
  url: conformance/sibill-conformance.yml
- type: Sandbox
  url: sandbox/sibill-sandbox.yml
- type: Webhooks
  url: asyncapi/sibill-webhooks.yml
- type: MCPServer
  url: mcp/sibill-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/sibill-packages.yml
- type: Overlay
  url: overlays/sibill-openapi-overlay.yaml
- type: WellKnown
  url: well-known/sibill-well-known.yml
- type: LLMsTxt
  url: llms/sibill-llms.txt
- type: DomainSecurity
  url: security/sibill-domain-security.yml
- type: AgenticAccess
  url: agentic-access/sibill-agentic-access.yml
- type: Website
  url: https://sibill.com/