sendly-now
Sendly provides an Email API enhanced with AI capabilities for both transactional and marketing communications. It offers features such as scoped API keys, phishing screening, visual workflow builders, and integrations with Claude AI. Developers can send emails, manage campaigns, and verify domains through a unified API platform.
Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.
API Evangelist profiles sendly-now the way a machine reads it — 47 machine-readable artifacts across 1 API, 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 — sendly-now scores 67.6/100 (exemplar), with a separate agent-readiness read of 62/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Why this profile is thin
the company serves an API surface but requires credentials before any description of it can be read
An API exists — we simply could not reach the contract without credentials or a sales conversation. This one is sendly-now's to change: publishing the reference and a machine-readable spec at a public URL, while keeping key issuance behind whatever gate they like, would let an integrator evaluate the API before committing to a call.
What we probed
https://sendly.now/openapi.json→ HTTPhttps://docs.sendly.now/openapi.json→ HTTPhttps://api.sendly.now/api/mcp→ HTTP 401https://app.sendly.now/api/mcp→ HTTP 401https://sendly.now/→ HTTP 200
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 2026-10-31 · rubric v0.25.0
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How we profile sendly-now
Each block below is one kind of artifact we hold for sendly-now. 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 27
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.
sendly-now Account API
The signed-in person's own account: profile, notification channels, data export, deletion, and the project the dashboard opens on. For a session or an agent acting for the perso...
sendly-now Analytics API
Aggregate sending and engagement metrics. Every read is bounded to a window of at most 90 days and cached for 15 minutes.
sendly-now API Keys API
Project-scoped sending/API credentials. All four operations are documented; minting and rotation answer with a one-time reveal link rather than the secret, so a delegated caller...
sendly-now Billing API
The project's plan, its metered Stripe subscription, and the two Stripe-hosted pages (Checkout and the billing portal). An agent gets a single-use `/go/` link to a hosted page r...
sendly-now Campaigns API
Bulk sends to a list, segment, or filtered audience. Served by the `/api/v1` surface (bare payloads, RFC 9457 errors).
sendly-now Compatibility API
Drop-in endpoints for the Resend, SendGrid, Postmark, Mailgun and Plunk send APIs, so an existing integration can switch by changing its base URL and key. They are NOT the nativ...
sendly-now Connections API
The services a project or a person is connected to: the project's Slack workspace, the domains whose DNS DoDomain manages, and the AI apps connected to a person's account. A con...
sendly-now Contacts API
Manage subscribers and per-contact custom data.
sendly-now Deliverability API
Why mail from one of your domains is or is not arriving: DNS identity, recent delivery outcomes, and one recipient's suppression state, composed into findings.
sendly-now Domains API
Register sending domains and manage SES verification.
sendly-now Emails API
Send transactional email and inspect deliveries.
sendly-now Events API
Track custom contact events from your application.
sendly-now Lists API
Self-serve list membership. These two endpoints accept sending-only keys so they can back a public subscribe/unsubscribe form; list management itself is dashboard-only.
sendly-now Mailboxes API
Real receiving mailboxes on your verified domains. Creating one changes how that domain's mail is routed; the messages a mailbox receives are not part of this API.
sendly-now Members API
A project's members and their roles. A project is the team: a member is added by the email of an existing Sendly account and joins at once, so there are no pending invitations. ...
sendly-now Organizations API
The organizations a person belongs to, each a group of projects: their overview and the merged inbox across their mailboxes. An organization never widens project access; every f...
sendly-now Projects API
The project a credential is scoped to, and creating new ones. Configuring an existing project stays a dashboard action.
sendly-now Segments API
Saved audiences — a `DYNAMIC` filter re-evaluated on read, or a `STATIC` membership list. Served by the `/api/v1` surface (bare payloads, RFC 9457 errors).
sendly-now Support API
Write to Sendly's support team and list what was written, and appeal a project's sending suspension. A ticket reaches the same inbox as the dashboard's support form.
sendly-now Suppression API
Project-scoped suppression list. Hard bounces and complaints land here automatically.
sendly-now Templates API
Reusable email templates referenced by send operations.
sendly-now Topics API
The subjects you mail about, and what each contact has said about them. A topic answer is a standing decision rather than an audience filter: it applies whatever audience a camp...
sendly-now Usage API
Current email usage against the monthly and daily limits the platform enforces.
sendly-now Validation API
Bulk email validation, billed per address: a bounded synchronous batch, and background runs over a whole list. Distinct from `Verify`, which is the one open, unauthenticated, si...
sendly-now Verify API
Open email-validation endpoint (no auth required). Used by the marketing-site verifier.
sendly-now Webhooks API
User-managed outbound webhooks for email and contact events.
sendly-now Workflows API
Event-triggered automations and the contact runs through them. Served by the `/api/v1` surface (bare payloads, RFC 9457 errors).
Scroll within the panel for all 27 ·
Agent Skills 5
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.
sendly-now-billing-summary
AGENT SKILLsendly-now-create-and-retrieve-contact
AGENT SKILLsendly-now-create-configure-webhook
AGENT SKILLsendly-now-export-account-data
AGENT SKILLsendly-now-org-overview
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.
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Sendly Now Webhooks
ASYNCAPISemantic 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.
Sendly Now 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.
sendly-now 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.
ComposeMailboxMessage
JSON SCHEMADomainLogoReadinessV1
JSON SCHEMADomain
JSON SCHEMAMailboxConversationReplyBody
JSON SCHEMASendEmail
JSON SCHEMASendEmailV1
JSON SCHEMASecurity Posture 3
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 sendly-now — 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 2
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 1
SDKs, sample code, and the tooling you integrate with
Access & Security 10
Authentication, authorization, and security posture
Scroll within the panel for all 10 ·
Operate 2
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 1
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/sendly-now · machine-readable index on apis.io
This is an independent, third-party profile of sendly-now, 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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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.