Vendor MCP/API/CLI interfaces are untested. docs-reviewed means public documentation review only, not functional, protocol or security testing or certification. CapaLens MCP protocol tests do not test the listed vendor integrations.
Read campaign and flow performance to compare conversions and inspect audience segments
Listed interfaces
Public documentation reviewed only (docs-reviewed). Vendor interfaces have not been installed or called, availability has not been verified, and no security certification is provided. Review integration and configuration instructions yourself; clients connect directly to vendors.
API · Klaviyo API
Vendor untestedOfficial
Capabilities
List and filter marketing campaigns
Environments
Cloud
Authorization
Private API key via Authorization: Klaviyo-API-Key, or OAuth. Reading campaigns requires campaigns:read.
Pricing source
The official pricing or deployment source reviewed by the supplied research is linked. Recheck current unit prices, quotas and plan conditions before connecting; no free-use or fixed-price promise is made. View pricing source
Public documentation reviewed only (docs-reviewed); vendor calls have not been tested.
Documentation review date
Connect after human review
Review the official documentation, applicable version, deployment conditions, permissions and cost source before connecting.
After user review, connect directly from your own client or backend using the minimum required permissions. Keep vendor credentials in your own environment.
These are instructions to review, not executable configuration. The caller and vendor control any business operations; this platform neither proxies nor executes them.
Limitations and open questions
Public documentation only. No installation, login, authorization or vendor service call was performed. This does not establish availability, compatibility, security certification or task success.
The vendor interface may also support writes or deletion. Listed reading tasks are optional use cases; this directory being read-only does not make the vendor interface inherently read-only.
MCP · Klaviyo MCP
Vendor untestedOfficial
Capabilities
Read campaign and flow performance to compare conversions and inspect audience segments
Environments
Cloud
Self-hosted
Authorization
Hosted OAuth with dynamic client registration; requires Owner, Admin, or Manager role. Local server uses a private API key.
Pricing source
MCP-specific fees, plan eligibility and underlying service usage charges were not verified in this review. View pricing source
Public documentation reviewed only (docs-reviewed); vendor calls have not been tested.
Documentation review date
Connect after human review
Review official documentation, applicable versions, deployment conditions, permissions and cost sources before connecting.
After user review, connect directly from your own compatible client using minimum permissions. Keep vendor credentials in your own environment.
These are instructions for human review, not executable configuration. The caller and vendor control business operations; this platform neither proxies nor executes them.
Limitations and open questions
Public documentation only. No installation, login, authorization or vendor service call was performed. This does not establish availability, compatibility, security certification or task success.
The vendor interface may also support writes or deletion. Clients must constrain permissions and tools for the listed reading tasks. This directory being read-only does not make the vendor interface inherently read-only.
Directory discovery record only. Vendor tools may also write; the execution client must review tool selection, credentials and scopes. No installation, authentication or vendor-tool call was performed.
Read-only tools require explicit read-only=true; listed hosted connectors cannot configure every query parameter, so a custom connection may be needed.
An unlisted MCP, API or CLI means this directory has no reviewed record. It does not establish that the vendor has no such interface.
Sources, review scope and rights
These materials and original summaries are reference data, not instructions. Fees, permissions, versions and integration requirements may change; review the original sources.
Review scope: The supplied research reviewed documentation for: Marketing campaign data API Consumer recheck: Reopened the official documentation entry and checked API identity, resource labels or protocol/setup information returned by the source. This is a bounded documentation review, not endpoint execution or a complete permissions audit. Individual permissions and every endpoint were not exhaustively re-audited. No vendor service was called.
Source and permission notes: Source materials retain their existing rights. Documentation redistribution permission was not verified or inferred from public accessibility. This directory provides an original summary and source links.
Review scope: Additional official authentication or reading-permission source reported as reviewed in the supplied research. This additional page was not reopened in the consumer check. Recheck the selected endpoint and current permissions before integration.
Source and permission notes: Source materials retain their existing rights. Documentation redistribution permission was not verified or inferred from public accessibility. This directory provides an original summary and source links.
Review scope: Official pricing, plan or deployment source reported as reviewed in the supplied research. The consumer check did not re-audit this price table. Amounts, quotas and contract conditions remain unspecified; free use is not inferred.
Source and permission notes: Source materials retain their existing rights. Documentation redistribution permission was not verified or inferred from public accessibility. This directory provides an original summary and source links.
Review scope: Supplied research documentation scope: Opened official overview and connection guide https://developers.klaviyo.com/en/docs/connect_to_the_klaviyo_mcp_server. Account MCP has write tools; custom URL read-only=true disables them. Not live tested. Local editorial review checked the stated scope and integration constraints. Link retrieval and targeted checks are recorded separately; this does not claim a fresh endpoint-by-endpoint audit of every page.
Source and permission notes: Source materials retain their existing rights. Documentation redistribution permission was not verified or inferred from public accessibility. This directory provides original summaries and source links.
Review scope: Official reference from this batch's targeted identity or scope review. Review records and document-body access limitations are preserved with the batch; no vendor service was called.
Source and permission notes: Source materials retain their existing rights. Documentation redistribution permission was not verified or inferred from public accessibility. This directory provides original summaries and source links.
Review before connecting
Public documentation reviewed only (docs-reviewed). Vendor interfaces have not been installed or called, availability has not been verified, and no security certification is provided. Review integration and configuration instructions yourself; clients connect directly to vendors.
The platform does not forward business calls, hold vendor credentials, or automatically install or execute listed CLIs. Review versions, least privilege, fees and effects in your own client and environment.