Sendoso website screenshot

Sendoso

Sendoso is a corporate gifting and direct mail platform that lets sales, marketing, customer success and people teams send physical gifts, branded swag, eGifts, direct mail and charitable donations at scale. The Sendoso Core API (v3) automates sending against pre-configured campaigns — physical gifts to a known address, physical gifts with recipient address collection, and eGifts delivered by email or as embeddable links — while the Marketplace and SmartSend APIs send from an open catalog and let Sendoso pick the gift from the recipient's interests. A SCIM 2.0 surface handles user provisioning, an embeddable iFrame puts the whole send flow inside a partner application, and Svix-signed webhooks report twenty-eight send lifecycle events. Sendoso also ships an OAuth-protected MCP server, an agent skill and an A2A agent card, and integrates with Salesforce, HubSpot, Outreach, SalesLoft, Marketo and other CRM and sales engagement tools.

Sendoso publishes 4 APIs on the APIs.io network, including Core API, Marketplace and SmartSend API, SCIM API, and 1 more. Tagged areas include Corporate Gifting, Direct Mail, Sales Engagement, Marketing Automation, and CRM Integration.

The Sendoso catalog on APIs.io includes 1 event-driven AsyncAPI specification and 2 Spectral governance rulesets.

Sendoso’s developer surface includes developer portal, documentation, API reference, getting-started guide, authentication, sandbox, support, and 36 more developer resources.

54.6/100 strong ▬ flat Agent 50/100 agent native Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
5 APIs 1 MCP Servers
Corporate GiftingDirect MailSales EngagementMarketing AutomationCRM IntegrationeGiftsSwag and MerchandiseFulfillmentEmployee RecognitionAccount Based MarketingSCIM ProvisioningWebhook

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 54.6/100 · strong
Contract Quality 7.5 / 25
Developer Ergonomics 14.3 / 20
Access Clarity 15.5 / 20
Operational Transparency 4.1 / 13
Contract Governance 5.0 / 12
Discoverability 8.2 / 10
Agent readiness — 50/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/sendoso: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Sendoso Core API

Create physical gift, direct mail and eGift sends against Sendoso campaigns, and read the campaigns, users and team groups behind them. Ten operations on /api/v3.

Sendoso Marketplace and SmartSend API

Browse the Sendoso marketplace catalog, get AI-selected gift recommendations for a recipient, and send either. Four operations on /api/v3, scoped to `marketplace` and `smartsend`.

Sendoso SCIM API

SCIM 2.0 user provisioning and deprovisioning for the Sendoso platform. Requires its own OAuth client credentials, and is an Enterprise-tier entitlement.

Sendoso Webhooks

Twenty-eight Svix-signed send lifecycle events delivered to an endpoint you control. Subscriptions are configured in a hosted portal; there is no webhook management API.

Sendoso MCP Server

OAuth-protected remote MCP server over the Sendoso platform, at https://app.sendoso.com/mcp. Publishes RFC 9728 protected-resource and RFC 8414 authorization-server metadata wit...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Sendoso MCP Server

Sendoso ships TWO remote MCP servers, and they are different products. The production server at https://app.sendoso.com/mcp is an OAuth-protected agent surface over the Sendoso ...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Sendoso Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Sendoso Rate Limits

2 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Sendoso Webhooks

Sendoso webhooks deliver real-time send status updates. Sendoso does not publish an AsyncAPI document; this description was generated by API Evangelist from Sendoso's own webhoo...

ASYNCAPI

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Sendoso API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Sendoso API Rules

8 rules · 5 errors 2 warnings 1 info

SPECTRAL

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Sendoso Authentication

oauth2 · 1 scheme

SECURITY

Sendoso Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Sendoso Trust Center

trust center published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sendoso Scopes

6 scopes · authorizationCode

6 scopes

SCOPES

Resources

Get Started 5

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 10

Pagination, idempotency, versioning, errors, and events

Scroll for all 10

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 6

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
name: Sendoso
description: Sendoso is a corporate gifting and direct mail platform that lets sales, marketing, customer success and people
  teams send physical gifts, branded swag, eGifts, direct mail and charitable donations at scale. The Sendoso Core API (v3)
  automates sending against pre-configured campaigns — physical gifts to a known address, physical gifts with recipient address
  collection, and eGifts delivered by email or as embeddable links — while the Marketplace and SmartSend APIs send from an
  open catalog and let Sendoso pick the gift from the recipient's interests. A SCIM 2.0 surface handles user provisioning,
  an embeddable iFrame puts the whole send flow inside a partner application, and Svix-signed webhooks report twenty-eight
  send lifecycle events. Sendoso also ships an OAuth-protected MCP server, an agent skill and an A2A agent card, and integrates
  with Salesforce, HubSpot, Outreach, SalesLoft, Marketo and other CRM and sales engagement tools.
accessModel:
  pricing: subscription
  onboarding: request
  trial: false
  try_now: false
  public: false
  label: Subscription · Sales-gated · Credentials issued by email
  confidence: high
  source:
  - https://www.sendoso.com/compare-plans
  - https://developer.sendoso.com/rest-api/overview/authentication
  generated: '2026-08-13'
  method: searched
  note: Corrected 2026-08-13. The previous "Freemium / self-serve" label came from a 2026-05-04 scaffold plans file. Sendoso
    publishes four named tiers with no prices and no self-serve signup, and API client credentials are issued by hand on request
    to developers@sendoso.com.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sendoso.png
url: https://raw.githubusercontent.com/api-evangelist/sendoso/refs/heads/main/apis.yml
created: '2026-05-02'
modified: '2026-08-13'
specificationVersion: '0.23'
tags:
- Corporate Gifting
- Direct Mail
- Sales Engagement
- Marketing Automation
- CRM Integration
- eGifts
- Swag and Merchandise
- Fulfillment
- Employee Recognition
- Account Based Marketing
- SCIM Provisioning
- Webhook
tags_raw:
- Corporate Gifting
- Direct Mail
- Sales Engagement
- Marketing Automation
- CRM Integration
- eGifts
- Swag and Merchandise
- Fulfillment
- Employee Recognition
- Account Based Marketing
- SCIM Provisioning
- Webhooks
apis:
- aid: sendoso:sendoso-core-api
  name: Sendoso Core API
  description: Create physical gift, direct mail and eGift sends against Sendoso campaigns, and read the campaigns, users
    and team groups behind them. Ten operations on /api/v3.
  humanURL: https://developer.sendoso.com/rest-api/overview/introduction
  baseURL: https://app.sendoso.com/api/v3
  tags:
  - Sends
  - Campaigns
  - User
  - Team
  tags_raw:
  - Sends
  - Campaigns
  - Users
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/sendoso-core-api-openapi.yml
  - type: Overlay
    url: overlays/sendoso-core-overlay.yaml
  - type: Documentation
    url: https://developer.sendoso.com/rest-api/overview/introduction
  - type: APIReference
    url: https://developer.sendoso.com/rest-api/reference/sends/get-sends
  - type: GettingStarted
    url: https://developer.sendoso.com/rest-api/overview/introduction
  - type: Authentication
    url: https://developer.sendoso.com/rest-api/overview/authentication
  - type: RateLimits
    url: https://developer.sendoso.com/rest-api/overview/rate-limits
  - type: Security
    url: https://developer.sendoso.com/rest-api/overview/security
  - type: FAQ
    url: https://developer.sendoso.com/rest-api/overview/faq
  - type: Webhooks
    url: https://developer.sendoso.com/webhooks/introduction
- aid: sendoso:sendoso-marketplace-api
  name: Sendoso Marketplace and SmartSend API
  description: Browse the Sendoso marketplace catalog, get AI-selected gift recommendations for a recipient, and send either.
    Four operations on /api/v3, scoped to `marketplace` and `smartsend`.
  humanURL: https://developer.sendoso.com/marketplace/overview/introduction
  baseURL: https://app.sendoso.com/api/v3
  tags:
  - Marketplace
  - SmartSend
  - Recommendations
  properties:
  - type: OpenAPI
    url: openapi/sendoso-marketplace-api-openapi.yml
  - type: Overlay
    url: overlays/sendoso-marketplace-overlay.yaml
  - type: Documentation
    url: https://developer.sendoso.com/marketplace/overview/introduction
  - type: APIReference
    url: https://developer.sendoso.com/marketplace/reference/products/get-products
  - type: Authentication
    url: https://developer.sendoso.com/marketplace/overview/authentication
  - type: RateLimits
    url: https://developer.sendoso.com/marketplace/overview/rate-limits
- aid: sendoso:sendoso-scim-api
  name: Sendoso SCIM API
  description: SCIM 2.0 user provisioning and deprovisioning for the Sendoso platform. Requires its own OAuth client credentials,
    and is an Enterprise-tier entitlement.
  humanURL: https://developer.sendoso.com/scim/overview/introduction
  baseURL: https://app.sendoso.com/api/scim/v2
  tags:
  - SCIM
  - Provisioning
  - Identity
  properties:
  - type: OpenAPI
    url: openapi/sendoso-scim-api-openapi.yml
  - type: Overlay
    url: overlays/sendoso-scim-overlay.yaml
  - type: Documentation
    url: https://developer.sendoso.com/scim/overview/introduction
  - type: APIReference
    url: https://developer.sendoso.com/scim/reference/get-users
  - type: Authentication
    url: https://developer.sendoso.com/scim/overview/authentication
  - type: Security
    url: https://developer.sendoso.com/scim/overview/security
- aid: sendoso:sendoso-webhooks
  name: Sendoso Webhooks
  description: Twenty-eight Svix-signed send lifecycle events delivered to an endpoint you control. Subscriptions are configured
    in a hosted portal; there is no webhook management API.
  humanURL: https://developer.sendoso.com/webhooks/introduction
  baseURL: https://developer.sendoso.com/webhooks/introduction
  tags:
  - Webhook
  - Event
  tags_raw:
  - Webhooks
  - Events
  properties:
  - type: AsyncAPI
    url: asyncapi/sendoso-webhooks-asyncapi.yml
  - type: Webhooks
    url: https://developer.sendoso.com/webhooks/events
  - type: Documentation
    url: https://developer.sendoso.com/webhooks/introduction
  - type: Security
    url: https://developer.sendoso.com/webhooks/security
- aid: sendoso:sendoso-mcp
  name: Sendoso MCP Server
  description: OAuth-protected remote MCP server over the Sendoso platform, at https://app.sendoso.com/mcp. Publishes RFC
    9728 protected-resource and RFC 8414 authorization-server metadata with dynamic client registration and PKCE. Sold from
    the Core plan tier upward.
  humanURL: https://www.sendoso.com/compare-plans
  baseURL: https://app.sendoso.com/mcp
  tags:
  - MCP
  - Agents
  properties:
  - type: MCPServer
    url: mcp/sendoso-mcp.yml
  - type: ToolCrosswalk
    url: mcp/sendoso-tool-crosswalk.yml
  - type: OAuthMetadata
    url: well-known/sendoso-oauth-authorization-server-mcp.json
common:
- type: Website
  url: https://www.sendoso.com/
- type: DeveloperPortal
  url: https://developer.sendoso.com/
- type: Portal
  url: https://developer.sendoso.com/
- type: Documentation
  url: https://developer.sendoso.com/rest-api/overview/introduction
- type: APIReference
  url: https://developer.sendoso.com/rest-api/reference/sends/get-sends
- type: GettingStarted
  url: https://developer.sendoso.com/rest-api/overview/introduction
- type: Authentication
  url: authentication/sendoso-authentication.yml
- type: OAuthScopes
  url: scopes/sendoso-scopes.yml
- type: Conventions
  url: conventions/sendoso-conventions.yml
- type: Idempotency
  url: conventions/sendoso-conventions.yml
- type: RateLimits
  url: rate-limits/sendoso-rate-limits.yml
- type: ErrorCatalog
  url: errors/sendoso-problem-types.yml
- type: Lifecycle
  url: lifecycle/sendoso-lifecycle.yml
- type: Conformance
  url: conformance/sendoso-conformance.yml
- type: DataModel
  url: data-model/sendoso-data-model.yml
- type: Sandbox
  url: sandbox/sendoso-sandbox.yml
- type: Components
  url: components/sendoso-components.yml
- type: Plans
  url: plans/sendoso-plans-pricing.yml
- type: Packages
  url: packages/sendoso-packages.yml
- type: WellKnown
  url: well-known/sendoso-well-known.yml
- type: MCPServer
  url: mcp/sendoso-mcp.yml
- type: ToolCrosswalk
  url: mcp/sendoso-tool-crosswalk.yml
- type: AgentCard
  url: a2a/sendoso-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/sendoso-llms.txt
- type: LlmsText
  url: https://developer.sendoso.com/llms.txt
- type: AsyncAPI
  url: asyncapi/sendoso-webhooks-asyncapi.yml
- type: Webhooks
  url: asyncapi/sendoso-webhooks-asyncapi.yml
- type: DomainSecurity
  url: security/sendoso-domain-security.yml
- type: TrustCenter
  url: security/sendoso-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/sendoso-vulnerability-disclosure.yml
- type: SpectralRules
  url: rules/sendoso-rules.yml
- type: Vocabulary
  url: vocabulary/sendoso-vocabulary.yml
- type: HelpCenter
  url: https://support.sendoso.com/hc/en-us
- type: Support
  url: mailto:developers@sendoso.com
- type: Blog
  url: https://www.sendoso.com/blog
- type: Integrations
  url: https://www.sendoso.com/directory
- type: Pricing
  url: https://www.sendoso.com/compare-plans
- type: Login
  url: https://app.sendoso.com/login
- type: TermsOfService
  url: https://www.sendoso.com/terms
- type: PrivacyPolicy
  url: https://www.sendoso.com/privacy
- type: SecurityCenter
  url: https://security.sendoso.com/
- type: GitHubOrganization
  url: https://github.com/sendoso
- type: LinkedIn
  url: https://www.linkedin.com/company/sendoso
maintainers:
- FN: API Evangelist
  url: https://apievangelist.com
  email: info@apievangelist.com
x-provenance:
  checked: '2026-08-13'
  note: This profile was rebuilt from Sendoso's own published documentation at developer.sendoso.com. The five API entries
    it previously carried (Inventory, Recipients, Reports, Sends, Teams) and the OpenAPI documents behind them were an API
    Evangelist scaffold — wrong base path (/api/v2, which returns 404), wrong auth (X-Api-Key instead of OAuth 2.0), and not
    one real path. They and the eighteen artifacts derived from them are quarantined in _scaffold/ with a written record.
  openapi_provenance: 'Sendoso publishes no OpenAPI document. The three descriptions in openapi/ are generated by API Evangelist
    from Sendoso''s reference pages; each carries info.x-generated-from: documentation and a per-operation externalDocs URL
    back to the source page.'
  pointers_removed:
  - type: StatusPage
    url: https://status.sendoso.com/
    reason: Host does not answer over HTTP or HTTPS (probed 2026-08-13); the underlying Atlassian Statuspage at sendoso.statuspage.io
      reports INACTIVE.
  - type: TermsOfService
    url: https://sendoso.com/terms-of-service/
    reason: 404. Replaced with https://www.sendoso.com/terms.
  - type: PrivacyPolicy
    url: https://sendoso.com/privacy-policy/
    reason: 404. Replaced with https://www.sendoso.com/privacy.
  - type: PostmanWorkspace
    url: https://www.postman.com/kinlaneapi/sendoso/overview
    reason: Built from the scaffold collections and still serves invented /api/v2 requests. Needs rebuilding or unpublishing
      by hand before it is pointed at again.
  - types:
    - AgenticAccess
    - JSONSchema
    - JSONStructure
    - JSONLD
    - Examples
    reason: All derived from the scaffold OpenAPI and describing paths and fields that do not exist. Quarantined in _scaffold/.
  - type: FinOps
    url: finops/sendoso-finops.yml
    reason: Same 2026-05-04 scaffold pass. Asserted a "Usage-Based, Monthly, USD" billing model for a provider that publishes
      no prices at all. Quarantined in _scaffold/finops/.
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 31
  pass: local-v1