Fax for Agents
Fax for Agents provides a modern fax API and a hosted Multi-Channel Platform (MCP) server designed for AI agents, enabling them to send and receive faxes programmatically within defined permissions and budgets. Built by JSB Holdings LLC, the service offers SDKs, webhooks, sandbox testing, and comprehensive documentation to integrate fax capabilities into AI-driven workflows worldwide.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Fax for Agents the way a machine reads it — 38 machine-readable artifacts across 2 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Fax for Agents scores 52.5/100 (developing), with a separate agent-readiness read of 35/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-11-06 · rubric v0.27.0
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title="Fax for Agents on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/faxforagents.svg"
alt="Fax for Agents Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/faxforagents/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/faxforagents/"
title="Fax for Agents on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/faxforagents/card.svg"
alt="Fax for Agents Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Fax for Agents
Each block below is one kind of artifact we hold for Fax for Agents. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 21
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Fax for Agents Admin API
The admin API from Fax for Agents — 29 operation(s) for admin.
Fax for Agents Agents API
The agents API from Fax for Agents — 4 operation(s) for agents.
Fax for Agents Approvals API
The approvals API from Fax for Agents — 5 operation(s) for approvals.
Fax for Agents Auth API
The auth API from Fax for Agents — 18 operation(s) for auth.
Fax for Agents Billing API
The billing API from Fax for Agents — 18 operation(s) for billing.
Fax for Agents Documents API
The documents API from Fax for Agents — 11 operation(s) for documents.
Fax for Agents Events API
The events API from Fax for Agents — 1 operation(s) for events.
Fax for Agents Extractions API
The extractions API from Fax for Agents — 9 operation(s) for extractions.
Fax for Agents Faxes API
The faxes API from Fax for Agents — 6 operation(s) for faxes.
Fax for Agents Identity API
The identity API from Fax for Agents — 4 operation(s) for identity.
Fax for Agents Inbox API
The inbox API from Fax for Agents — 4 operation(s) for inbox.
Fax for Agents Members API
The members API from Fax for Agents — 4 operation(s) for members.
Fax for Agents Numbers API
The numbers API from Fax for Agents — 12 operation(s) for numbers.
Fax for Agents OAuth API
The oauth API from Fax for Agents — 3 operation(s) for oauth.
Fax for Agents One Time Sends API
The one-time-sends API from Fax for Agents — 1 operation(s) for one-time-sends.
Fax for Agents Organizations API
The organizations API from Fax for Agents — 4 operation(s) for organizations.
Fax for Agents Platform API
The platform API from Fax for Agents — 2 operation(s) for platform.
Fax for Agents Policies API
The policies API from Fax for Agents — 5 operation(s) for policies.
Fax for Agents Quotes API
The quotes API from Fax for Agents — 2 operation(s) for quotes.
Fax for Agents Sandbox API
The sandbox API from Fax for Agents — 3 operation(s) for sandbox.
Fax for Agents Webhooks API
The webhooks API from Fax for Agents — 10 operation(s) for webhooks.
Scroll within the panel for all 21 ·
Agent Skills 1
An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.
Packaged agent skills for driving this provider's APIs from an AI assistant.
upload-document
AGENT SKILLPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Faxforagents Rate Limits
RATE LIMITSSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Faxforagents Context
JSON-LDSpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Fax for Agents API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
AnalyticsOrganization
JSON SCHEMAExtraction
JSON SCHEMAFaxJob
JSON SCHEMAInboxItemDetail
JSON SCHEMANumber
JSON SCHEMAQuote
JSON SCHEMASecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Fax for Agents — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 9
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 9 ·
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 7
Authentication, authorization, and security posture
Scroll within the panel for all 7 ·
Operate 4
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/faxforagents · machine-readable index on apis.io
This is an independent, third-party profile of Fax for Agents, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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