eSIM Tabby

eSIM Tabby provides an MCP server for travel data, enabling users to buy travel eSIMs directly through conversational AI platforms like Claude and ChatGPT. The service offers card or USDC payment options, integrates with AI assistants for seamless eSIM activation, and includes detailed guides on usage, pricing, and legal terms. It aims to simplify the eSIM purchasing process without leaving the chat interface.

eSIM Tabby is listed with 1 API on the APIs.io network. Tagged areas include Travel, eSIM, MCP, Artificial Intelligence, and Payments.

eSIM Tabby’s developer surface includes documentation, authentication, getting-started guide, support, pricing, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

25.9/100 emerging Agent 6/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessSelf serve

1 API 1 MCP Servers

Travel eSIM MCP Artificial Intelligence Payments

Kin Score

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

Composite quality — 25.9/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 6.5 / 17

Access Clarity 6.2 / 17

Operational Transparency 1.0 / 11

Contract Governance 1.9 / 10

Discoverability 5.7 / 9

Regulatory Posture 3.9 / 15

Agent readiness — 6/100 · agent aware

Machine-Readable Contract 0 / 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 0 / 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 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 Payments 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
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 →

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points Ask about this →
Access Clarity scores 36.2 — up to +12.8 composite points Ask about this →
Developer Ergonomics scores 38.1 — up to +12.4 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.

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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/esimtabby-com/apis.yml: open an issue on github.com/api-evangelist/esimtabby-com 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 1

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)

APIs 1

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

eSIM Tabby MCP

MCP server for eSIM purchase and activation, documented at the eSIM Tabby developer portal.

MCP Servers 1

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

eSIM Tabby MCP Server

Remote MCP server at esimtabby.com.

MCP SERVER

Security Posture 3

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

eSIM Tabby Authentication

1 scheme

SECURITY

eSIM Tabby Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

eSIM Tabby Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

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 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 5

Authentication, authorization, and security posture

Security

Security

Authentication

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: esimtabby-com
name: eSIM Tabby
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://ogkit.dev/img/1QUg55fk.jpeg?url=https%3A%2F%2Fesimtabby.com%2F
description: eSIM Tabby provides an MCP server for travel data, enabling users to buy travel eSIMs directly through conversational
  AI platforms like Claude and ChatGPT. The service offers card or USDC payment options, integrates with AI assistants for
  seamless eSIM activation, and includes detailed guides on usage, pricing, and legal terms. It aims to simplify the eSIM
  purchasing process without leaving the chat interface.
url: https://artifacts.apis.io/esimtabby-com/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)
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: No OpenAPI, AsyncAPI, GraphQL, or other machine-readable contract found despite public documentation.
  evidence:
  - url: https://esimtabby.com/mcp
    status: 404
  checked: '2026-11-07'
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Travel
- eSIM
- MCP
- Artificial Intelligence
- Payments
tags_raw:
- Travel
- eSIM
- MCP
- AI
- Payments
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Documentation
  url: https://esimtabby.com/guides/esim-not-working
- type: Security
  url: security/esimtabby-com-vulnerability-disclosure.yml
- type: Authentication
  url: authentication/esimtabby-com-authentication.yml
- type: Conformance
  url: conformance/esimtabby-com-conformance.yml
- type: LLMsTxt
  url: llms/esimtabby-com-llms.txt
- type: MCPServer
  url: mcp/esimtabby-com-mcp.yml
- type: SecurityTxt
  url: well-known/esimtabby-com-security.txt
- type: WellKnown
  url: well-known/esimtabby-com-well-known.yml
- type: Hosts
  url: hosts/esimtabby-com-hosts.yml
- type: Vendors
  url: vendors/esimtabby-com-vendors.yml
- type: Login
  url: https://esimtabby.com/auth/login
- type: VulnerabilityDisclosure
  url: security/esimtabby-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/esimtabby-com-domain-security.yml
- type: Website
  url: https://esimtabby.com/
- type: GettingStarted
  url: https://esimtabby.com/guides/mcp-server-that-takes-money
- type: Support
  url: https://esimtabby.com/legal/contact
- type: TermsOfService
  url: https://esimtabby.com/legal/terms
- type: PrivacyPolicy
  url: https://esimtabby.com/legal/privacy
- type: Pricing
  url: https://esimtabby.com/
apis:
- name: eSIM Tabby MCP
  description: MCP server for eSIM purchase and activation, documented at the eSIM Tabby developer portal.
  humanURL: https://esimtabby.com/guides/mcp-server-that-takes-money
  baseURL: null
  aid: esimtabby-com:esim-tabby-mcp
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 15
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

eSIM Tabby API — frequently asked questions

Does eSIM Tabby have an API?

Yes. APIs.io lists 1 API from eSIM Tabby, including eSIM Tabby MCP.

How do I authenticate with the eSIM Tabby API?

eSIM Tabby uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as eSIM Tabby Authentication.

Does eSIM Tabby have an MCP server?

Yes. APIs.io lists 1 MCP server for eSIM Tabby: Remote MCP server at esimtabby.com.

Is the eSIM Tabby API ready for AI agents?

eSIM Tabby has a Kin Score of 25.9 out of 100 (emerging) and an Agent Readiness score of 6.0 (agent-aware), scored by API Evangelist on 2026-11-13.

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

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