eSIMfly

eSIMfly provides global eSIM solutions for international travelers, offering instant connectivity in over 200 countries with affordable data plans. Customers can activate eSIMs quickly, avoid roaming charges, and manage plans via a web portal. The company emphasizes easy setup, 24/7 support, and a focus on seamless travel connectivity.

eSIMfly is listed with 1 API on the APIs.io network. Tagged areas include Company, eSIM, Travel, Connectivity, and Telecommunications.

The eSIMfly catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

eSIMfly’s developer surface includes authentication, pricing, engineering blog, getting-started guide, documentation, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.4/100 thin Agent 37/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 API 1 MCP Servers

Company eSIM Travel Connectivity Telecommunications

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 32.4/100 · thin

Contract Quality 5.3 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 6.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 2.4 / 15

Agent readiness — 37/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 0 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 25.0 — up to +18.8 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →
Access Clarity scores 36.2 — up to +12.8 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/esimfly-net/apis.yml: open an issue on github.com/api-evangelist/esimfly-net 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 →

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

eSIMfly API

eSIMfly API as documented publicly: 11 operations. Contract generated from the documentation by API Evangelist (2026-11-07); not the provider's own document.

MCP Servers 1

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

eSIMfly MCP Server

Remote MCP server at mcp.esimfly.net.

MCP SERVER

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Esimfly Net Context

9 classes · 17 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

eSIMfly API Rules

41 rules · 39 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

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

GetApiV1BusinessEsimsPackagesResponse

26 properties

JSON SCHEMA

GetApiV1BusinessWebhooksResponse

4 properties

JSON SCHEMA

GetEsimsPackagesResponse

26 properties

JSON SCHEMA

GetEsimsUsageQueryResponse

2 properties

JSON SCHEMA

PutApiV1BusinessWebhooksRequest

2 properties

JSON SCHEMA

PutApiV1BusinessWebhooksResponse

4 properties

JSON SCHEMA

Security Posture 2

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

eSIMfly Authentication

4 schemes

SECURITY

eSIMfly Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: esimfly-net
name: eSIMfly
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://esimfly.net/og-image.png
description: eSIMfly provides global eSIM solutions for international travelers, offering instant connectivity in over 200
  countries with affordable data plans. Customers can activate eSIMs quickly, avoid roaming charges, and manage plans via
  a web portal. The company emphasizes easy setup, 24/7 support, and a focus on seamless travel connectivity.
url: https://artifacts.apis.io/esimfly-net/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Company
- eSIM
- Travel
- Connectivity
- Telecommunications
tags_raw:
- Company
- eSIM
- Travel
- Connectivity
- Telecom
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/esimfly-net-rules.yml
- type: JSONLD
  url: json-ld/esimfly-net-context.jsonld
- type: Vocabulary
  url: vocabulary/esimfly-net-vocabulary.yml
- type: DataModel
  url: data-model/esimfly-net-data-model.yml
- type: Authentication
  url: authentication/esimfly-net-authentication.yml
- type: Conformance
  url: conformance/esimfly-net-conformance.yml
- type: LLMsTxt
  url: llms/esimfly-net-llms.txt
- type: MCPServer
  url: mcp/esimfly-net-mcp.yml
- type: WellKnown
  url: well-known/esimfly-net-well-known.yml
- type: Hosts
  url: hosts/esimfly-net-hosts.yml
- type: Vendors
  url: vendors/esimfly-net-vendors.yml
- type: Packages
  url: packages/esimfly-net-packages.yml
- type: TermsOfService
  url: https://esimfly.net/terms
- type: SDKs
  url: https://www.npmjs.com/package/@esimfly/sdk
- type: PrivacyPolicy
  url: https://esimfly.net/privacy
- type: Pricing
  url: https://esimfly.net/pricing
- type: Login
  url: https://esimfly.net/login
- type: Blog
  url: https://blog.esimfly.net
- type: GettingStarted
  url: https://docs.esimfly.net/docs/quick-start
- type: Documentation
  url: https://docs.esimfly.net/
- type: DeveloperPortal
  url: https://docs.esimfly.net</a
- type: DomainSecurity
  url: security/esimfly-net-domain-security.yml
- type: Website
  url: https://esimfly.net/
apis:
- aid: esimfly-net:esimfly-net-api
  name: eSIMfly API
  description: 'eSIMfly API as documented publicly: 11 operations. Contract generated from the documentation by API Evangelist
    (2026-11-07); not the provider''s own document.'
  humanURL: https://docs.esimfly.net/docs/api/esims
  baseURL: https://esimfly.net
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/esimfly-net-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/esimfly-net-get-api-v1-business-esims-packages-response-schema.json
  - type: JSONSchema
    url: json-schema/esimfly-net-get-esims-packages-response-schema.json
  - type: JSONSchema
    url: json-schema/esimfly-net-get-api-v1-business-webhooks-response-schema.json
  - type: JSONSchema
    url: json-schema/esimfly-net-put-api-v1-business-webhooks-request-schema.json
  - type: JSONSchema
    url: json-schema/esimfly-net-put-api-v1-business-webhooks-response-schema.json
  - type: JSONSchema
    url: json-schema/esimfly-net-get-esims-usage-query-response-schema.json
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Documentation pages exist but no OpenAPI, AsyncAPI, GraphQL, gRPC, or WSDL contracts were found.
  evidence:
  - url: https://docs.esimfly.net/
    status: 200
  checked: '2026-11-07'
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

eSIMfly API — frequently asked questions

Does eSIMfly have an API?

Yes. APIs.io lists 1 API from eSIMfly, including eSIMfly API.

Is there an OpenAPI specification for the eSIMfly API?

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

How do I authenticate with the eSIMfly API?

eSIMfly documents its authentication (4 schemes). The details are profiled on APIs.io as eSIMfly Authentication.

Does eSIMfly have an MCP server?

Yes. APIs.io lists 1 MCP server for eSIMfly: Remote MCP server at mcp.esimfly.net.

Is the eSIMfly API ready for AI agents?

eSIMfly has a Kin Score of 32.4 out of 100 (thin) and an Agent Readiness score of 36.8 (agent-ready), scored by API Evangelist on 2026-11-13.

Work with this as data

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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.
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find_cohortsEvery scored population of providers in the catalog.

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