osis-co

Comms (osis.co) provides a unified Customer Messaging API enabling developers to send and receive messages across iMessage, RCS, SMS, and WhatsApp, as well as manage voice calls and payments. The platform offers hosted MCP tools for AI assistants, detailed developer guides, quickstarts, and webhooks for real‑time event handling, targeting ecommerce sellers, SaaS products, and enterprises.

osis-co publishes 11 API contracts indexed on the APIs.io network, including AI API, Calls API, Capabilities API, and 8 more. Tagged areas include Messaging, Communications, API, SaaS, and CustomerSupport.

The osis-co catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

osis-co’s developer surface includes authentication, documentation, getting-started guide, API reference, pricing, engineering blog, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

65.8/100 strong Agent 66/100 agent native Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 2 Agent Skills

Messaging CommunicationsAPISaaSCustomerSupport

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 65.8/100 · strong

Contract Quality 14.6 / 21

Developer Ergonomics 10.0 / 17

Access Clarity 12.4 / 17

Operational Transparency 4.0 / 11

Contract Governance 8.1 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 66/100 · 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 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/osis-co/"><img src="https://apis.io/badge/osis-co/card.svg" alt="osis-co on APIs.io — Kin Score by API Evangelist"></a>

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Agent readiness — checks not met, largest first (exact, from this profile):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Dry-Run / Simulate Mode +4 pts — OpenAPI: destructive operations expose a dry_run / simulate / preview / validate_only parameter
Consent & Bot Identity +3 pts — common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures

Kin Score — facets with the most composite points still available (weight × headroom):

Operational Transparency scores 36.3 — up to +8.3 composite points
Developer Ergonomics scores 58.8 — up to +8.2 composite points
Contract Quality scores 68.7 — up to +7.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/osis-co/apis.yml: open an issue on github.com/api-evangelist/osis-co to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 11

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

osis-co AI API

The AI API from osis-co — 2 operation(s) for ai.

osis-co Calls API

The Calls API from osis-co — 11 operation(s) for calls.

osis-co Capabilities API

The Capabilities API from osis-co — 1 operation(s) for capabilities.

osis-co Conversations API

The Conversations API from osis-co — 4 operation(s) for conversations.

osis-co Events API

The Events API from osis-co — 1 operation(s) for events.

osis-co Groups API

The Groups API from osis-co — 1 operation(s) for groups.

osis-co Lines API

The Lines API from osis-co — 6 operation(s) for lines.

osis-co Messages API

The Messages API from osis-co — 6 operation(s) for messages.

osis-co Number Changes API

The Number Changes API from osis-co — 1 operation(s) for number changes.

osis-co Payments API

The Payments API from osis-co — 8 operation(s) for payments.

osis-co Webhooks API

The Webhooks API from osis-co — 1 operation(s) for webhooks.

Scroll for all 11

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

osis-co-create-and-retrieve-payment

AGENT SKILL

osis-co-place-call

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Osis Co Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Osis Co Rate Limits

3 limits

RATE LIMITS

Event Specifications 1

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

Osis Co Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Osis Co Context

53 classes · 194 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

osis-co API Rules

15 rules · 9 errors 5 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

Call

23 properties

JSON SCHEMA

MerchantStatus

5 properties

JSON SCHEMA

Message

20 properties

JSON SCHEMA

PaymentRequest

27 properties

JSON SCHEMA

SendContactCardRequest

16 properties

JSON SCHEMA

SendMessageRequest

12 properties

JSON SCHEMA

Security Posture 2

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

Osis Co Authentication

1 scheme

SECURITY

Osis Co Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 9

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: osis-co
name: osis-co
image: https://comms.osis.co/og.jpg?v=2
description: Comms (osis.co) provides a unified Customer Messaging API enabling developers to send and receive messages across
  iMessage, RCS, SMS, and WhatsApp, as well as manage voice calls and payments. The platform offers hosted MCP tools for AI
  assistants, detailed developer guides, quickstarts, and webhooks for real‑time event handling, targeting ecommerce sellers,
  SaaS products, and enterprises.
url: https://artifacts.apis.io/osis-co/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Messaging
- Communications
- API
- SaaS
- CustomerSupport
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/osis-co-rate-limits.yml
- type: Plans
  url: plans/osis-co-plans-pricing.yml
- type: Spectral
  url: rules/osis-co-rules.yml
- type: JSONLD
  url: json-ld/osis-co-context.jsonld
- type: Vocabulary
  url: vocabulary/osis-co-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/osis-co-webhooks.yml
- type: DataModel
  url: data-model/osis-co-data-model.yml
- type: Idempotency
  url: conventions/osis-co-conventions.yml
- type: Conventions
  url: conventions/osis-co-conventions.yml
- type: Authentication
  url: authentication/osis-co-authentication.yml
- type: ErrorCatalog
  url: errors/osis-co-problem-types.yml
- type: Conformance
  url: conformance/osis-co-conformance.yml
- type: LLMsTxt
  url: llms/osis-co-llms.txt
- type: AgentCard
  url: a2a/osis-co-a2a.yml
- type: WellKnown
  url: well-known/osis-co-well-known.yml
- type: Hosts
  url: hosts/osis-co-hosts.yml
- type: Vendors
  url: vendors/osis-co-vendors.yml
- type: TermsOfService
  url: https://comms.osis.co/terms
- type: PrivacyPolicy
  url: https://comms.osis.co/privacy
- type: Login
  url: https://comms.osis.co/auth/login
- type: DomainSecurity
  url: security/osis-co-domain-security.yml
- type: Website
  url: https://osis.co/
- type: Documentation
  url: https://docs.osis.co/
- type: GettingStarted
  url: https://docs.osis.co/quickstart
- type: APIReference
  url: https://docs.osis.co
- type: DeveloperPortal
  url: https://comms.osis.co/developers
- type: Pricing
  url: https://comms.osis.co/pricing
- type: Blog
  url: https://comms.osis.co/blog
apis:
- aid: osis-co:osis-co-ai-api
  name: osis-co AI API
  description: The AI API from osis-co — 2 operation(s) for ai.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - AI
  properties:
  - type: OpenAPI
    url: openapi/osis-co-ai-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-calls-api
  name: osis-co Calls API
  description: The Calls API from osis-co — 11 operation(s) for calls.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Calls
  properties:
  - type: OpenAPI
    url: openapi/osis-co-calls-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-capabilities-api
  name: osis-co Capabilities API
  description: The Capabilities API from osis-co — 1 operation(s) for capabilities.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Capabilities
  properties:
  - type: OpenAPI
    url: openapi/osis-co-capabilities-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-conversations-api
  name: osis-co Conversations API
  description: The Conversations API from osis-co — 4 operation(s) for conversations.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Conversations
  properties:
  - type: OpenAPI
    url: openapi/osis-co-conversations-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-events-api
  name: osis-co Events API
  description: The Events API from osis-co — 1 operation(s) for events.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/osis-co-events-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-groups-api
  name: osis-co Groups API
  description: The Groups API from osis-co — 1 operation(s) for groups.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/osis-co-groups-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-lines-api
  name: osis-co Lines API
  description: The Lines API from osis-co — 6 operation(s) for lines.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Lines
  properties:
  - type: OpenAPI
    url: openapi/osis-co-lines-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-messages-api
  name: osis-co Messages API
  description: The Messages API from osis-co — 6 operation(s) for messages.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/osis-co-messages-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-number-changes-api
  name: osis-co Number Changes API
  description: The Number Changes API from osis-co — 1 operation(s) for number changes.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Number Changes
  properties:
  - type: OpenAPI
    url: openapi/osis-co-number-changes-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-payments-api
  name: osis-co Payments API
  description: The Payments API from osis-co — 8 operation(s) for payments.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/osis-co-payments-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
- aid: osis-co:osis-co-webhooks-api
  name: osis-co Webhooks API
  description: The Webhooks API from osis-co — 1 operation(s) for webhooks.
  humanURL: https://docs.osis.co/messages-api/overview
  baseURL: https://osis.co/api/v1/comms
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/osis-co-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/osis-co-send-message-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-call-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-merchant-status-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-send-contact-card-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-payment-request-schema.json
  - type: JSONSchema
    url: json-schema/osis-co-message-schema.json
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-10-31'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://docs.osis.co/openapi.json
    status: null
  - url: https://docs.osis.co/mcp
    status: null
  - url: https://osis.co/api/mcp
    status: 401
  - url: https://comms.osis.co/api/mcp
    status: 401
  - url: https://osis.co/
    status: 200
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 62
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

osis-co API — frequently asked questions

Does osis-co have an API?

Yes. APIs.io lists 11 APIs from osis-co, including osis-co AI API, osis-co Calls API and osis-co Capabilities API, and 8 more.

Is there an OpenAPI specification for the osis-co API?

Yes. APIs.io indexes 11 OpenAPI specifications for osis-co, each linked for download from this page.

How do I authenticate with the osis-co API?

osis-co documents its authentication (1 scheme). The details are profiled on APIs.io as Osis Co Authentication.

How much does the osis-co API cost?

APIs.io lists 4 pricing plans for osis-co, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the osis-co API ready for AI agents?

osis-co has a Kin Score of 65.8 out of 100 (strong) and an Agent Readiness score of 66.1 (agent-native), scored by API Evangelist on 2026-10-31.

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