SoapAction
IANA permanent
request
Declared by 3 providers across 44 published specification files in the APIs.io network.
A count here is providers whose published contract declares this header — not
providers who send it. Response headers set at the edge rarely appear in an OpenAPI at all, so a low
number can measure documentation practice rather than deployment.
The registry
| Status | permanent |
|---|---|
| Reference | Simple Object Access Protocol (SOAP) 1.1 |
Providers declaring it (3)
adobe-campaign salesforce tui-group
Explore
All headers Connection & Transport Guidance on headers.apievangelist.com
Work with this as data
Every header here is available over the APIs.io API and to AI agents over MCP. HTTP Headers is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.