niche · 0.0 market domain

Email Delivery

Score 17.5 / 100 7 providers +2 via APIs 2 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
SMTP2GOEmailTransactional EmailSMTP1 API71.7
Developing 4 Usable, with meaningful gaps to close
SparkPostEmailTransactional EmailMarketing Email10 APIs45.4Whisperr, Inc.CompanyCustomer RetentionChurnMarketing Automation2 APIs44.7MailjetEmailMarketing EmailSMTP1 API43.4MailtrapEmailEmail SandboxEmail Testing2 APIs39.7
Thin 2 Limited public surface area
MailerooEmailMarketing EmailSMTP1 API38.9MailgunEmailTransactional EmailSMTPEmail Validation1 API33.0

APIs with this tag (2)

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 1 Complete, well-documented, and agent-ready
Zoho Campaigns Email APIResource-oriented JSON REST API for sending email at volume from Zoho Campaigns. Covers transmissions (crea...68.9
Developing 1 Usable, with meaningful gaps to close
Zoho ZeptoMailThe Zoho ZeptoMail API provides REST endpoints for sending transactional emails such as OTPs, password rese...54.1

Companies reaching this through an API (2)

These companies publish an API, specification or operation carrying “Email Delivery” 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.

Zoho Zoho Campaigns

Score breakdown

Frequency
27.0
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
51.3
mean composite of providers using it
Cohesion
3.1
strength of nearest seed neighbor

Related tags

SMTP 6 co-occurrences Transactional Email 8 co-occurrences Email 7 co-occurrences Webhook 5 co-occurrences

Where this tag comes from

Provider tag7
Api tag2

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/email-delivery"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/email-delivery"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/email-delivery/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.