APIVerve

SPF Validator API GET

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SPF Validator checks the Sender Policy Framework (SPF) DNS record for a domain to verify if it’s valid and optionally whether a given IP address is authorized to send emails for that domain.

Try it — live request, no key required

Request
GETapi.apiverve.com/v1/spfvalidator
Verification
Format

No key required to try it. Get a key to use it in your app.

200 OK
{
  "status": "ok",
  "error": null,
  "data": {
    // SPF Validator response payload
  }
}

About the SPF Validator API

This tool performs a DNS lookup to retrieve the SPF record for the domain and validates its syntax, structure, and IP ranges. When an IP address is provided, the API tests whether it is permitted under the domain’s SPF rules for sending mail.

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON
Default REST response
XML
Markup format
YAML
Human-readable
CSV
Tabular export
Beta
GraphQL
Query language
New
MCP
For AI agents
View all integrations →

Other ways to use SPF Validator

Same data, same APIVerve account, same credit balance — one key works on all of them.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.on VerveKit Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.on VerveSheets Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.on VerveContext

Questions.

Common questions about the SPF Validator API.

Read the docs →
What does the SPF Validator API do?
SPF Validator checks the Sender Policy Framework (SPF) DNS record for a domain to verify if it’s valid and optionally whether a given IP address is authorized to send emails for that domain.
How do I authenticate SPF Validator API requests?
Pass your API key in the x-api-key header over HTTPS. One key works across all 300+ APIVerve APIs — there are no per-endpoint credentials.
How much does the SPF Validator API cost?
Each call spends 10 credits from your shared pool. The free tier includes 200 credits every month, and paid plans add more headroom.
How fast is the SPF Validator API?
Response time depends on the endpoint — the p50 through p99 latency for this API is published on this page. Requests are served over HTTPS through a global edge network.
What response formats does the SPF Validator API support?
JSON by default, plus XML and YAML via the format parameter. GraphQL and an MCP interface for AI agents are available across the catalog.
What HTTP method does the SPF Validator API use?
GET over HTTPS, following standard REST conventions with a consistent { status, error, data } response envelope.
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