niche · -1.6 market

Fax

Score 19.4 / 100 7 providers +4 via APIs 8 APIs Search apis.io →

Providers using this tag (7)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 1 Complete, well-documented, and agent-ready

EmbossPDFFormsDocument ProcessingForm Filling2 APIs67.0

Strong 3 Solid coverage with minor gaps

SignalWireCompanyCommunicationsCPaaSVoice4 APIs65.4 Spruce HealthHealthcareHIPAACommunicationsSecure Messaging16 APIs61.2 RingCentralCommunicationsUCaaSVoiceVideo1 API61.0

Thin 1 Limited public surface area

DocumoCloud FaxDocument DeliveryHIPAA1 API37.2

Minimal 2 Almost no public developer surface

Brooktrout TechnologyCompanyTelephonyVoice0.0 FaxSavCompanyInternet FaxMessaging0.0

APIs with this tag (8)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 3 Complete, well-documented, and agent-ready

Zoom Phone Fax APIThe Fax API from Zoom Phone — 6 operation(s) for fax.67.4 Emboss Account APIThe authenticated developer API on api.getemboss.ai: create fillable forms (or start from the public librar...67.0 Emboss Pay-per-call APIThe anonymous pay door at api.getemboss.ai/pay: make fillable, fill from data, fill with context, read a fi...67.0

Strong 3 Solid coverage with minor gaps

RingCentral Fax APIThe RingCentral Fax API enables developers to add programmable and customizable fax sending and receiving c...61.0 Genesys Fax APIThe Fax API from Genesys — 5 operation(s) for fax.60.3 Dropbox Sign (HelloSign) Fax APIThe Fax API from Dropbox Sign (HelloSign) — 4 operation(s) for fax.59.6

Thin 2 Limited public surface area

Documo Fax APISend, resend, retrieve, list, and download faxes.37.2 Dropbox Sign Fax APIThe Fax API from Dropbox Sign — 2 operation(s) for fax.33.5

Companies reaching this through an API (4)

These companies publish an API, specification or operation carrying “Fax” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Dropbox Sign Dropbox Sign (HelloSign) Genesys Zoom Phone

Score breakdown

Frequency

35.3

log-scaled weighted occurrences

Breadth

0.2

spread across providers

Quality lift

51.1

mean composite of providers using it

Cohesion

2.2

strength of nearest seed neighbor

Where this tag comes from

Provider tag7

Api tag8

Openapi tag3

Openapi op tag9

Work with this as data

Every tag 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 tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
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 tag

curl "https://apis.io/api/v1/tags/fax"

All tags

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

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/fax"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/fax/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

Discovery needs no key. Ratings and market analysis are Pro.

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.

Fax