Email Marketing
Variants seen in the corpus:
Email MarketingEmailMarketing
Providers using this tag (80)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 21 Complete, well-documented, and agent-ready
Strong 21 Solid coverage with minor gaps
Developing 16 Usable, with meaningful gaps to close
Thin 7 Limited public surface area
Emerging 8 Early or largely undocumented
Minimal 6 Almost no public developer surface
Unrated 1 Not yet scored
APIs with this tag (28)
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 4 Complete, well-documented, and agent-ready
Kit API V3 (Deprecated)The legacy ConvertKit V3 API is deprecated and slated for discontinuation; new integrations should target V4.MailerLite Classic API (Legacy)The MailerLite Classic API serves legacy MailerLite Classic accounts. New integrations should target the cu...Campaign Monitor APIREST API for managing email campaigns, subscriber lists, transactional emails, segments, journeys, template...Zoho Campaigns APIREST API for managing email campaigns, mailing lists, subscribers, templates, and analytics in Zoho Campaig...
Strong 14 Solid coverage with minor gaps
Encharge Broadcasts APIThe Broadcasts API from Encharge — 1 operation(s) for sending broadcasts.Kartra APIKartra's inbound developer API. One endpoint, POST only, form-encoded, with the operation selected by `acti...EmailOctopus Automation APIEnqueue an existing contact into an EmailOctopus automation. Write-only — the v2 API exposes no operation t...EmailOctopus Campaign APIRead campaigns and their three report projections — summary counters, per-link clicks, and per-contact enga...EmailOctopus Contact APIManage subscribers on a list: create, read, update, delete, upsert by email address, and update many at onc...EmailOctopus Field APIDefine the per-list custom fields contact records are written against. Fields are keyed by a stable tag slu...EmailOctopus List APICreate and manage subscriber lists, the aggregate root of the EmailOctopus data model. Fields, tags and con...EmailOctopus Tag APICreate, rename, delete and list the tags used to segment contacts on a list. Tags are keyed by slug rather ...Nutshell Audiences APIEmail-marketing audiences — static lists of contacts used to organize people for marketing sends. 2 operati...Nutshell Editions APIMarketing email editions — individual email sends and their metadata. 2 operation(s) across 2 path(s).Pabbly Email Marketing APIREST API for Pabbly Email Marketing — 23 documented operations across subscribers (upsert semantics on crea...Account Engagement API v5Version 5 REST API for managing prospects, accounts, campaigns, emails, forms, lists, and engagement progra...VBOUT Email Marketing APIThe Email Marketing API from VBOUT — 10 operation(s) for email marketing.VBOUT EmailMarketing APIThe EmailMarketing API from VBOUT — 25 operation(s) for emailmarketing.
Developing 8 Usable, with meaningful gaps to close
Sailthru APIThe core Sailthru HTTPS API. All requests are GET, POST or DELETE calls to https://api.sailthru.com/, authZoho CampaignsThe Zoho Campaigns API provides programmatic access to email marketing capabilities, allowing integration w...iContact REST APIREST API v2.2 for managing contacts, lists, segments, campaigns, messages, sends, and reporting inside the ...Drip MCP ServerDrip operates a remote Model Context Protocol server at https://api.getdrip.com/mcp, protected by its OAuth...Drip REST APIREST API for Drip exposing subscribers, tags, custom fields, broadcasts, email campaigns, events, conversio...SAP Emarsys Customer Engagement APIREST APIs for marketing automation, customer engagement, and personalized campaign management across email,...Dynamics 365 Marketing APIAPI for managing marketing campaigns, customer journeys, email marketing, and lead scoring.CommsHarbor APIREST/HTTP API (OpenAPI 3.1) for transactional email, deliverability, sending domains, permission-based mark...
Thin 1 Limited public surface area
Emerging 1 Early or largely undocumented
Companies reaching this through an API (4)
These companies publish an API, specification or operation carrying “Email Marketing” 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.
Score breakdown
Frequency
56.5
log-scaled weighted occurrences
Breadth
2.2
spread across providers
Quality lift
58.2
mean composite of providers using it
Cohesion
36.9
strength of nearest seed neighbor
Related tags
Marketing Automation 56 co-occurrences
Transactional Email 18 co-occurrences
Campaigns 35 co-occurrences
Landing Pages 13 co-occurrences
Newsletters 11 co-occurrences
Segments 16 co-occurrences
Subscribers 12 co-occurrences
Segmentation 12 co-occurrences
Where this tag comes from
Provider tag80
Api tag28
Openapi tag2
Openapi op tag29
Cohort brief
Auto-generatedThe 78 providers in the APIs.io catalog tagged Email Marketing, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
78
all scored
Mean Kin Score
51.9
+28.0 vs catalog 23.9
Mean Agent Readiness
30.1
+18.1 vs catalog 12
Spread
5–87.3
median 55.6 · σ 20.9
How the 78 split by band
Exemplar 21Strong 21Developing 16Thin 7Emerging 8Minimal 5
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Access Clarity | 67.9 | 26.5 | +41.4 | 78 |
| Operational Transparency | 44.1 | 14 | +30.1 | 78 |
| Developer Ergonomics | 51.6 | 23.4 | +28.2 | 78 |
| Contract Quality | 42.9 | 19.8 | +23.1 | 78 |
| Discoverability | 70.1 | 61.2 | +8.9 | 78 |
| Contract Governance | 14.1 | 6.4 | +7.7 | 78 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 34% | 10% | +24 |
| MCP server (first-party) | 35% | 13% | +22 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 46% | 11% | +35 |
| Security | 97% | 97% | 0 |
| Arazzo workflows | 6% | 2% | +4 |
| Governance rules | 23% | 14% | +9 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 Brevo 87.3
- 2 HubSpot 87.1
- 3 Kit 82.8
- 4 SendGrid 80
- 5 Mailchimp 77.8
- 6 MailerLite 77.3
- 7 Listrak 77
- 8 Adobe Campaign 74.9
- 9 ActiveCampaign 74.6
- 10 GetResponse 74.3
Top by Agent Readiness
- 1 Bloomreach 63.7
- 2 Paubox 61.5
- 3 Kit 60.4
- 4 Knak 58.8
- 5 Omnisend 57.3
- 6 HubSpot 57.2
- 7 Brevo 54.8
- 8 MailerLite 54.3
- 9 ActiveCampaign 52.2
- 10 Inflection.io 49.3
All 80 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
15 September 2026, across 27661
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.