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Seamless.AI MCP Server

Hosted Model Context Protocol server exposing 54 tools across 11 domains — search, research, user, lists, saved searches, campaigns, templates, email, calls, tasks and activity — plus seven read-only seamless:// resources. Secured with OAuth 2.1 (PKCE S256, dynamic client registration, scope mcp.all). Covers Connect products the REST API does not expose at all.

Seamless.AI MCP Server is one of 2 APIs that Seamless.AI publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include MCP, Agents, and Sales Automation. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and a getting-started guide.

This API exposes 1 operation across 1 path. It is described by OpenAPI 3.0.3, at version 1.0.0.

Requests are made against a single base URL, https://mcp.seamless.ai.

1 operations 1 paths 0 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0.0
Base URL
https://mcp.seamless.ai
Authentication
OAuth 2.0, API Key
Resource Areas
1

Authentication & Security 2

Seamless.AI MCP Server declares 2 security schemes for authenticating requests. It supports OAuth 2.0 (OAuth2) using the authorizationCode flow, exposing 1 scope. An API key is passed in the header as Token (ApiKey). By default, every request must be authenticated.

  • ApiKey — API key passed via the Token header.

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Operations 1
POST
/mcp
MCP Transport
mcp_transport body → 200401405

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

seamless-ai-mcp-server-openapi-original.yaml Raw ↑

Other APIs Seamless.AI publishes across the network.

Seamless.AI Public API
Where this information came from

This is an independent, third-party profile of Seamless.AI MCP Server, 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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