# Directory (filtered)

Home > Browse > Directory

84 sites · 363 category unknown

Filters combine: different facets must all match; values within one facet are alternatives.

## Capability

- MCP — 76
- Markdown — 84
- Endpoint (MCP or API catalog) — 84
- WebMCP — 1

## Can act

- Agent can act — 31

## Checks passed

- 5 of 5 — 87
- [4 of 5](https://knowngood.sh/directory.md?category=email-messaging) (selected) — 84
- 3 of 5 — 101
- 2 of 5 — 105
- 1 of 5 — 92

## Type

- documentation — 65
- saas — 17
- tool — 2

## Country

- BR — 2
- CA — 1
- FI — 1
- US — 1
- unknown — 79

## Category

- AI agents — 1,058
- SDKs and API clients — 671
- blockchain and web3 — 529
- programming languages and frameworks — 444
- analytics and observability — 432
- payments — 374
- online courses — 299
- build and test tooling — 275
- search and data APIs — 278
- conversational and voice AI — 270
- security and identity — 262
- productivity and documents software — 256
- cloud and hosting — 248
- workflow automation software — 231
- digital products — 231
- developer platforms — 222
- financial services — 204
- databases and storage — 195
- extensions and plugins — 191
- marketing software — 187
- CRM and sales software — 174
- community and nonprofits — 176
- trading and investing platforms — 176
- lifestyle and personal — 173
- health — 170
- [email and messaging](https://knowngood.sh/directory.md?tier=4) (selected) — 84
- technology — 167
- accounting and invoicing software — 155
- gaming — 155
- arts and culture — 150
- SEO — 145
- construction and roofing — 143
- generative media — 141
- IT services and cybersecurity — 140
- jobs and recruiting — 139
- schools and language learning — 137
- customer support software — 131
- ecommerce infrastructure — 130
- conferences and training events — 125
- real estate — 123
- software development services — 123
- web design and development — 123
- business consulting — 121
- digital marketing agencies — 121
- embedded devices and firmware — 119
- music — 118
- scheduling and events software — 112
- travel — 110
- fitness — 109
- insurance — 108
- medical clinics — 108
- parenting and family — 108
- internet and telecom providers — 105
- sports — 105
- automotive — 104
- food and cooking — 104
- news and current affairs — 103
- deals and discounts — 101
- fashion and clothing — 99
- AI consulting agencies — 97
- legal services — 97
- travel agencies and booking — 97
- flowers and gifts — 96
- furniture and home decor — 95
- photography — 95
- hotels and accommodation — 94
- auto sales and service — 93
- beauty and personal care products — 93
- faith and religion — 93
- restaurants and cafes — 93
- wellness and spa — 93
- cleaning services — 92
- food and drink retail — 92
- moving and storage — 92
- e-signatures — 91
- electronics — 91
- pharmacies — 90
- tours and activities — 90
- weddings and event services — 90
- accounting and tax services — 89
- industrial and trade supplies — 89
- parking and transport services — 89
- catering and food services — 88
- dental care — 88
- medical and health supplies — 88
- plumbing and HVAC — 88
- jewellery and watches — 87
- perfume and fragrance — 87
- beauty — 86
- pest control — 86
- pet supplies — 86
- senior care — 86
- sports clubs and organisations — 86
- car rental — 85
- dermatology — 85
- hair and beauty salons — 85
- medical aesthetics — 85
- sports and outdoor equipment — 85

## Platform

- mintlify — 71
- unknown — 13

## Verified within

Of the latest check, 2026-08-28.

- 7 days — 84
- 30 days — 84
- 90 days — 84

## Sites

- [OpenMail](https://knowngood.sh/site/docs.openmail.sh.md) — docs.openmail.sh · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Wapi.js](https://knowngood.sh/site/javascript.wapikit.com.md) — javascript.wapikit.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Broodnet](https://knowngood.sh/site/broodnet.com.md) — broodnet.com · saas · country unknown · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-23
- [Siren](https://knowngood.sh/site/docs.trysiren.io.md) — docs.trysiren.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Central de Ajuda](https://knowngood.sh/site/help.wizebot.com.br.md) — help.wizebot.com.br · documentation · BR · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Amplemarket API](https://knowngood.sh/site/docs.amplemarket.com.md) — docs.amplemarket.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Minimo Docs](https://knowngood.sh/site/docs.minimo.it.md) — docs.minimo.it · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Zavu](https://knowngood.sh/site/docs.zavu.dev.md) — docs.zavu.dev · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [PostStack](https://knowngood.sh/site/poststack.dev.md) — poststack.dev · saas · FI · 4 of 5 · MCP, Markdown, llms.txt, OpenAPI · can act: no · verified 2026-08-23
- [Summate](https://knowngood.sh/site/docs.summate.io.md) — docs.summate.io · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Feather](https://knowngood.sh/site/docs.featherhq.com.md) — docs.featherhq.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Orsay Docs](https://knowngood.sh/site/docs.orsay.ai.md) — docs.orsay.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Notifuse Documentation](https://knowngood.sh/site/docs.notifuse.com.md) — docs.notifuse.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [IndiePitcher](https://knowngood.sh/site/docs.indiepitcher.com.md) — docs.indiepitcher.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Privy Knowledge Base](https://knowngood.sh/site/help.privy.com.md) — help.privy.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Waterfall.io API Documentation](https://knowngood.sh/site/docs.waterfall.io.md) — docs.waterfall.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [CrunchzApp](https://knowngood.sh/site/docs.crunchz.app.md) — docs.crunchz.app · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Conversales ai](https://knowngood.sh/site/docs.conversales.in.md) — docs.conversales.in · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Transmit](https://knowngood.sh/site/docs.transmit.dev.md) — docs.transmit.dev · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Curious Mints](https://knowngood.sh/site/guides.curiousmints.com.md) — guides.curiousmints.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Dialbox](https://knowngood.sh/site/dialbox.us.md) — dialbox.us · saas · US · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-23
- [EmailBison Docs](https://knowngood.sh/site/docs.emailbison.com.md) — docs.emailbison.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [docs](https://knowngood.sh/site/docs.kurrier.io.md) — docs.kurrier.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Penbox Documentation](https://knowngood.sh/site/docs.penbox.io.md) — docs.penbox.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [myconf.it](https://knowngood.sh/site/myconf.it.md) — myconf.it · tool · country unknown · 4 of 5 · MCP, Markdown, llms.txt, OpenAPI · can act: no · verified 2026-08-23
- [Starter Kit](https://knowngood.sh/site/docs.videosupport.io.md) — docs.videosupport.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [ProBase Docs](https://knowngood.sh/site/docs.probaseapp.com.md) — docs.probaseapp.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Nedzo](https://knowngood.sh/site/docs.nedzo.ai.md) — docs.nedzo.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Does My Email Work](https://knowngood.sh/site/doesmyemail.work.md) — doesmyemail.work · tool · country unknown · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: no · verified 2026-08-23
- [AI Inbx Docs](https://knowngood.sh/site/docs.aiinbx.com.md) — docs.aiinbx.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Paubox API Docs](https://knowngood.sh/site/docs.paubox.com.md) — docs.paubox.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Resend](https://knowngood.sh/site/resend.com.md) — resend.com · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt, OpenAPI · can act: no · verified 2026-08-23
- [Unosend](https://knowngood.sh/site/docs.unosend.co.md) — docs.unosend.co · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [MigmaAI](https://knowngood.sh/site/docs.migma.ai.md) — docs.migma.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Amisend](https://knowngood.sh/site/docs.amisend.com.md) — docs.amisend.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Starleads api docs](https://knowngood.sh/site/docs.starleads.co.md) — docs.starleads.co · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [ContactSwing Docs](https://knowngood.sh/site/docs.contactswing.ai.md) — docs.contactswing.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Bouncer](https://knowngood.sh/site/docs.usebouncer.com.md) — docs.usebouncer.com · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [SendKit](https://knowngood.sh/site/docs.sendkit.dev.md) — docs.sendkit.dev · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Prelude Docs](https://knowngood.sh/site/docs.prelude.so.md) — docs.prelude.so · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Z-API Docs](https://knowngood.sh/site/developer.z-api.io.md) — developer.z-api.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Sanitize Email API Docs](https://knowngood.sh/site/docs.sanitizeemail.com.md) — docs.sanitizeemail.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Rasayel](https://knowngood.sh/site/docs.rasayel.io.md) — docs.rasayel.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Kapso Documentation](https://knowngood.sh/site/docs.kapso.ai.md) — docs.kapso.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Cleariflow API](https://knowngood.sh/site/docs.cleariflow.com.md) — docs.cleariflow.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Simple AI](https://knowngood.sh/site/docs.usesimple.ai.md) — docs.usesimple.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Fax.Plus API](https://knowngood.sh/site/apidoc.fax.plus.md) — apidoc.fax.plus · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Apten](https://knowngood.sh/site/docs.apten.ai.md) — docs.apten.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [TruFlow AI](https://knowngood.sh/site/docs.truflow.ai.md) — docs.truflow.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Email Testing For Developers](https://knowngood.sh/site/smtp.dev.md) — smtp.dev · saas · country unknown · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-23
- [Peerlist Help Center](https://knowngood.sh/site/help.peerlist.io.md) — help.peerlist.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [useSend](https://knowngood.sh/site/docs.usesend.com.md) — docs.usesend.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Mailblock Documentation](https://knowngood.sh/site/docs.mailblock.de.md) — docs.mailblock.de · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Hypersender](https://knowngood.sh/site/docs.hypersender.com.md) — docs.hypersender.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [toSend](https://knowngood.sh/site/tosend.com.md) — tosend.com · saas · country unknown · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-23
- [Poku Docs](https://knowngood.sh/site/docs.pokulabs.com.md) — docs.pokulabs.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Proofy](https://knowngood.sh/site/docs.proofy.io.md) — docs.proofy.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [AutoSend Documentation](https://knowngood.sh/site/docs.autosend.com.md) — docs.autosend.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [ManyPI Docs](https://knowngood.sh/site/docs.manypi.com.md) — docs.manypi.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [DeBounce API](https://knowngood.sh/site/developers.debounce.com.md) — developers.debounce.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Dialbox](https://knowngood.sh/site/dialbox.ca.md) — dialbox.ca · saas · CA · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-23
- [Resend](https://knowngood.sh/site/resend-staging.com.md) — resend-staging.com · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt, OpenAPI · can act: no · verified 2026-08-23
- [Meseji Documentation](https://knowngood.sh/site/docs.meseji.app.md) — docs.meseji.app · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Martin](https://knowngood.sh/site/docs.trymartin.com.md) — docs.trymartin.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [EuAtendo API Whats Delphi](https://knowngood.sh/site/doc.apicomponente.com.br.md) — doc.apicomponente.com.br · documentation · BR · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [MessageDesk Support Docs](https://knowngood.sh/site/docs.messagedesk.com.md) — docs.messagedesk.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Surge](https://knowngood.sh/site/docs.surge.app.md) — docs.surge.app · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Contiguity](https://knowngood.sh/site/docs.contiguity.com.md) — docs.contiguity.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [DMARCeye Docs](https://knowngood.sh/site/docs.dmarceye.com.md) — docs.dmarceye.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Lettr](https://knowngood.sh/site/docs.lettr.com.md) — docs.lettr.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Connectly](https://knowngood.sh/site/docs.connectly.ai.md) — docs.connectly.ai · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Enrichley Docs](https://knowngood.sh/site/docs.enrichley.io.md) — docs.enrichley.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Heymarket API Documentation](https://knowngood.sh/site/developers.heymarket.com.md) — developers.heymarket.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [TerraReach Documentation](https://knowngood.sh/site/docs.terrareach.com.md) — docs.terrareach.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Mailrith](https://knowngood.sh/site/mailrith.com.md) — mailrith.com · saas · country unknown · 4 of 5 · WebMCP, Markdown, llms.txt, OpenAPI · can act: no · verified 2026-08-23
- [SendPost Docs](https://knowngood.sh/site/docs.sendpost.io.md) — docs.sendpost.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [mintlify](https://knowngood.sh/site/help.convertalk.com.md) — help.convertalk.com · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [MailCare Documentation](https://knowngood.sh/site/docs.mailcare.io.md) — docs.mailcare.io · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Sendrealm Documentation](https://knowngood.sh/site/docs.sendrealm.com.md) — docs.sendrealm.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Stoked](https://knowngood.sh/site/get.stokedhq.com.md) — get.stokedhq.com · saas · country unknown · 4 of 5 · Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-23
- [emailr_](https://knowngood.sh/site/docs.emailr.dev.md) — docs.emailr.dev · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Zenzap](https://knowngood.sh/site/docs.zenzap.co.md) — docs.zenzap.co · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: yes · verified 2026-08-23
- [Hatch Documentation](https://knowngood.sh/site/docs.usehatchapp.com.md) — docs.usehatchapp.com · documentation · country unknown · 4 of 5 · MCP, Markdown, llms.txt · can act: no · verified 2026-08-23
- [Customer.io](https://knowngood.sh/site/customer.io.md) — customer.io · saas · country unknown · 4 of 5 · MCP, Markdown, llms.txt, OpenAPI · can act: yes · verified 2026-08-22

HTML: https://knowngood.sh/directory?category=email-messaging&tier=4