Plumma

Plumma SRL is an Italian software house (VAT IT04209450362, REA MO-451932) with its registered office at Via Corsini 21, Fellicarolo, Fanano (Modena) and an operational office at Via Provinciale 175/B, Crespellano, Valsamoggia (Bologna). Its own product, Plumma Connect, is an aggregation gateway in front of mobile network operators: it sells enterprises a single integration point for the operator-held identity, SIM and network-state signals that the GSMA Open Gateway programme exposes, instead of requiring the buyer to onboard operator-by-operator and country-by-country. Plumma states it is a GSMA Open Gateway channel partner and names GSMA, TIM, AWS and WaveMaker among its partners. Its architectural position is the notable part, and it is deliberate. Rather than mirroring the CAMARA one-endpoint-per-capability shape, Plumma Connect publishes a SINGLE OpenAPI 3.1 operation — POST /api on https://connect.plumma.it/services — that takes a phone number in E.164 form plus a list of named commands (sim_swap, kyc_match, age_verification, current_carrier, porting_logs, roaming_intel, churn_tracker, digital_footprint and others), so the CAMARA surface is an implementation detail behind an abstraction layer rather than the developer contract. The company is not, however, standard-averse underneath: its KYC request schema carries the CAMARA KnowYourCustomer Match attribute vocabulary verbatim (in snake_case), and every 4xx/5xx returns an RFC 7807 problem document with a correlation_id. The divergence is at the endpoint shape, not the data model. The product is positioned for fraud prevention and identity verification, with company-stated coverage of 17 live countries across Europe, the Americas, APAC and Africa and 75+ network connections. Documentation, the OpenAPI and a draft-07 request schema are public and ungated, and the JavaScript documentation portal is backed by an unauthenticated JSON content API at connect.ploomma.com that serves 72 documents including the billing guide, SLA, terms and full command reference. Billing is EUR 200/month plus a prepaid wallet charged per served command; published rate limits are 2/5 RPS and 180 commands/day. There is no MCP server, no agent card, no SDKs and no /.well-known documents — the provider marks SDKs and webhooks 'under construction'.

Plumma publishes 1 API contract indexed on the APIs.io network: CONNECT API. Tagged areas include Telecommunications, Network APIs, Italy, Europe, and GSMA Open Gateway.

The Plumma catalog on APIs.io includes 1 Spectral governance ruleset.

Plumma’s developer surface includes sandbox, signup flow, authentication, documentation, API reference, support, engineering blog, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

59.5/100 strong ▬ flat Agent 34/100 agent ready Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 3 Agent Skills

Telecommunications Network APIs Italy Europe GSMA Open Gateway CAMARA API Aggregator Fraud Prevention Identity Verification SIM Swap KYC Age Verification Number VerificationTelco IntelligenceSoftware Development

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 59.5/100 · strong

Contract Quality 12.8 / 19

Developer Ergonomics 8.1 / 15

Access Clarity 9.7 / 15

Operational Transparency 4.6 / 10

Contract Governance 3.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 5.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 34/100 · 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 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Telecommunications 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.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/plumma/"><img src="https://apis.io/badge/plumma/card.svg" alt="Plumma on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 54.2 — up to +9.2 composite points
Contract Quality scores 68.3 — up to +7.9 composite points
Contract Governance scores 35.6 — up to +7.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/plumma/apis.yml: open an issue on github.com/api-evangelist/plumma to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Biometrics Testing (biometric recognition vendors, identity verification depth)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

CAMARA

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

GSMA Open Gateway

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

Plumma CONNECT API

The flagship aggregation endpoint.

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

plumma-kyc-match

AGENT SKILL

plumma-multi-command-partial-reply

AGENT SKILL

plumma-sim-swap-fraud-check

AGENT SKILL

Plumma API pricing

Prices published by Plumma. A free plan or tier is listed.

Plan	Price
Demo	Free
Live (Plumma Connect subscription)	EUR 200

Plan details, limits and sources →

Rate limits

: 2 1s
: 5 1s
: 180 1d

Rate-limit details →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Plumma Plans Pricing

2 plans

PLANS

Plumma Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Plumma Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Plumma

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Plumma Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Plumma API Rules

59 rules · 56 errors 2 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Plumma Connect Api Overlay

6 actions · update · plumma-connect-openapi.yml

DERIVED

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

PlmRequest

4 properties

JSON SCHEMA

Examples 1

Example request and response payloads for these APIs.

Plumma Connect Api Examples

6 fields

EXAMPLE

Security Posture 4

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

Plumma Authentication

apiKey · 1 scheme

SECURITY

Plumma Domain Security

TLSv1.3 · DMARC

SECURITY

Plumma Vulnerability Disclosure

Hackerone · security.txt

SECURITY

Plumma Trust Center

trust center published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Plumma Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

SignUp

SignUp

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgenticAccess

AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Vocabulary

DataModel

ErrorCatalog

ErrorCodes

Lifecycle

Conformance

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Compliance

Compliance

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

StatusPage

Support

Contact

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Website

Website

Blog

Blog

Other 5

Properties that don't map to a standard resource type

Overlay

Standards

Standards

Standards

Standards

Source (apis.yml)

aid: plumma
url: https://raw.githubusercontent.com/api-evangelist/plumma/refs/heads/main/apis.yml
name: Plumma
kind: company
description: 'Plumma SRL is an Italian software house (VAT IT04209450362, REA MO-451932) with its registered office at Via
  Corsini 21, Fellicarolo, Fanano (Modena) and an operational office at Via Provinciale 175/B, Crespellano, Valsamoggia (Bologna).
  Its own product, Plumma Connect, is an aggregation gateway in front of mobile network operators: it sells enterprises a
  single integration point for the operator-held identity, SIM and network-state signals that the GSMA Open Gateway programme
  exposes, instead of requiring the buyer to onboard operator-by-operator and country-by-country. Plumma states it is a GSMA
  Open Gateway channel partner and names GSMA, TIM, AWS and WaveMaker among its partners.


  Its architectural position is the notable part, and it is deliberate. Rather than mirroring the CAMARA one-endpoint-per-capability
  shape, Plumma Connect publishes a SINGLE OpenAPI 3.1 operation — POST /api on https://connect.plumma.it/services — that
  takes a phone number in E.164 form plus a list of named commands (sim_swap, kyc_match, age_verification, current_carrier,
  porting_logs, roaming_intel, churn_tracker, digital_footprint and others), so the CAMARA surface is an implementation detail
  behind an abstraction layer rather than the developer contract. The company is not, however, standard-averse underneath:
  its KYC request schema carries the CAMARA KnowYourCustomer Match attribute vocabulary verbatim (in snake_case), and every
  4xx/5xx returns an RFC 7807 problem document with a correlation_id. The divergence is at the endpoint shape, not the data
  model.


  The product is positioned for fraud prevention and identity verification, with company-stated coverage of 17 live countries
  across Europe, the Americas, APAC and Africa and 75+ network connections. Documentation, the OpenAPI and a draft-07 request
  schema are public and ungated, and the JavaScript documentation portal is backed by an unauthenticated JSON content API
  at connect.ploomma.com that serves 72 documents including the billing guide, SLA, terms and full command reference. Billing
  is EUR 200/month plus a prepaid wallet charged per served command; published rate limits are 2/5 RPS and 180 commands/day.
  There is no MCP server, no agent card, no SDKs and no /.well-known documents — the provider marks SDKs and webhooks ''under
  construction''.'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  probe_state: covered
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://connect.plumma.it/wp-content/uploads/2026/03/PLUMMA-logo-bianco-inline-90x304-1.png
tags:
- Telecommunications
- Network APIs
- Italy
- Europe
- GSMA Open Gateway
- CAMARA
- API Aggregator
- Fraud Prevention
- Identity Verification
- SIM Swap
- KYC
- Age Verification
- Number Verification
- Telco Intelligence
- Software Development
created: '2026-09-07'
modified: '2026-09-07'
specificationVersion: '0.23'
position: Producing
x-type: company
x-source: harvest:direct-outreach
x-tier: stub
x-tier-reason: harvest
apis:
- aid: plumma:plumma-connect-api
  name: Plumma CONNECT API
  description: The flagship aggregation endpoint.
  humanURL: https://connect.plumma.it/plumma-connect-docs/
  baseURL: https://connect.plumma.it/services
  tags:
  - Connect
  tags_raw:
  - CONNECT
  properties:
  - type: OpenAPI
    url: openapi/plumma-connect-api-openapi.yml
  - type: JSONSchema
    url: json-schema/plumma-plmrequest.schema.json
  - type: Examples
    url: examples/plumma-connect-api-examples.json
  - type: Documentation
    url: https://connect.plumma.it/plumma-connect-docs/
  - type: APIReference
    url: https://connect.plumma.it/plumma-connect-docs/
common:
- type: Overlay
  url: overlays/plumma-connect-api-overlay.yaml
- type: Conventions
  url: conventions/plumma-conventions.yml
- type: Vocabulary
  url: vocabulary/plumma-commands-vocabulary.yml
- type: DataModel
  url: data-model/plumma-data-model.yml
- type: ErrorCatalog
  url: errors/plumma-problem-types.yml
- type: ErrorCodes
  url: errors/plumma-status-codes.yml
- type: Lifecycle
  url: lifecycle/plumma-lifecycle.yml
- type: Conformance
  url: conformance/plumma-conformance.yml
- type: Compliance
  url: https://connect.plumma.it/plumma-connect-docs/#security
- type: Sandbox
  url: sandbox/plumma-sandbox.yml
- type: Plans
  url: plans/plumma-plans-pricing.yml
- type: RateLimits
  url: rate-limits/plumma-rate-limits.yml
- type: Packages
  url: packages/plumma-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: X-MCPServerCandidate
  url: mcp/plumma-mcp.yml
- type: LLMsTxt
  url: llms/plumma-llms.txt
- type: SignUp
  url: https://connect.ploomma.com/
- type: TermsOfService
  url: https://connect.plumma.it/plumma-connect-docs/#terms-and-conditions
- type: AgenticAccess
  url: agentic-access/plumma-agentic-access.yml
- type: Authentication
  url: authentication/plumma-authentication.yml
- type: DomainSecurity
  url: security/plumma-domain-security.yml
- type: Website
  url: https://www.plumma.it
- type: Website
  url: https://connect.plumma.it
- type: DeveloperPortal
  url: https://connect.plumma.it
- type: Documentation
  url: https://connect.plumma.it/plumma-connect-docs/
- type: APIReference
  url: https://connect.plumma.it/plumma-connect-docs/
- type: StatusPage
  url: https://oneuptime.com/status-page/5c4b010b-1753-4d8f-8689-226d6e86d72a
- type: Support
  url: https://connect.plumma.it/support/
- type: PrivacyPolicy
  url: https://www.plumma.it/privacy-policy.html
- type: Blog
  url: https://connect.plumma.it/blog/
- type: Contact
  url: https://www.plumma.it/company.html
- type: Standards
  url: https://www.gsma.com/solutions-and-impact/gsma-open-gateway/
  name: GSMA Open Gateway
  x-standard: gsma-open-gateway
  x-relationship: channel-partner (company-stated)
- type: Standards
  url: https://camaraproject.org/
  name: CAMARA
  x-standard: camara
  x-relationship: vocabulary-conformant, endpoint-divergent — KYC Match attribute names carried verbatim; single POST /api
    rather than one endpoint per capability
- type: Standards
  url: https://www.rfc-editor.org/rfc/rfc9457
  name: Problem Details for HTTP APIs
  x-standard: problem-details
  x-relationship: implemented — RFC 7807 problem documents on every 4xx/5xx
- type: Standards
  url: https://spec.openapis.org/oas/v3.1.0
  name: OpenAPI
  x-standard: openapi
  x-relationship: implemented — publishes OpenAPI 3.1.0 ungated
x-enrichment:
  date: '2026-09-07'
  status: enriched
  artifacts_added: 28
  pass: local-v3
x-coverage:
  state: covered
  reason: n/a
  detail: Fully readable. The OpenAPI 3.1 contract and a standalone draft-07 request schema are served unauthenticated from
    connect.plumma.it, and the JS-rendered docs portal turned out to be backed by an ungated JSON content API at connect.ploomma.com/services/compliance
    — 72 documents including the billing guide, the SLA, the terms, the status/error registry and the full command reference,
    all HTTP 200.
  checked: '2026-09-07'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io

Plumma API — frequently asked questions

Does Plumma have an API?

Yes. APIs.io lists 1 API from Plumma, including Plumma CONNECT API.

Is there an OpenAPI specification for the Plumma API?

Yes. APIs.io indexes 1 OpenAPI specification for Plumma, each linked for download from this page.

How do I authenticate with the Plumma API?

Plumma uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Plumma Authentication.

How much does the Plumma API cost?

Plumma publishes its prices; its Live (Plumma Connect subscription) plan is EUR 200 as of 2026-09-07. APIs.io lists 2 pricing plans for Plumma, with each plan's price, limits and inclusions under Pricing on this page.

Is the Plumma API ready for AI agents?

Plumma has a Kin Score of 59.5 out of 100 (strong) and an Agent Readiness score of 34.4 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/plumma"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/plumma/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/plumma/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.