VerveContext
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SPF Grounding Data for AI AgentsSPF Grounding Data for AI Agents

OnlineCredit Usage:5 per callTool:SPFGroundingDataforAIAgents

The tool

Ground agents in real-time SPF record data so email-security answers reflect live DNS truth and authorized senders, not assumptions.

Once your client is connected to the VerveContext MCP server, this appears in its tool list as SPFGroundingDataforAIAgents. It is read-only and open-world: it fetches, it never mutates anything on your side, so most clients will call it without asking you to confirm.

Tool call
{
  "name": "SPFGroundingDataforAIAgents",
  "arguments": {
    "domain": "myspace.com"
  }
}

What that looks like in a conversation

You don't name the tool — the model picks it. Asking about myspace.com in the terms this source covers is enough for it to reach for SPFGroundingDataforAIAgents on its own.

Connecting

One server URL covers every source in the catalog, including this one. Authorization is OAuth — the client opens a browser once and there is no key to paste into a config file.

Client config
{
  "mcpServers": {
    "vervecontext": {
      "url": "https://api.vervecontext.com/v1/mcp"
    }
  }
}
Endpoint
https://api.vervecontext.com/v1/mcp

Per-client setup — Claude Desktop, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made.

ArgumentTypeExampleDescription
domainRequiredstringmyspace.comThe domain to validate the SPF record for

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client can read fields without parsing prose. status is "ok" on success and error is null; a null field means the value wasn't available for that input, not that the call failed.

Result
{
  "status": "ok",
  "error": null,
  "data": {
    "host": "myspace.com",
    "has_spf_record": true,
    "dns_lookups_num": 9,
    "spf_record": "v=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -all",
    "spf_records_list": [
      {
        "origin": "myspace.com",
        "record": "v=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -all",
        "chars_num": 637,
        "use_macro": false,
        "domains": [
          "_netblocks.mimecast.com"
        ],
        "authorized_ips": {
          "ipv4": [
            "63.208.226.34",
            "204.16.32.0/22",
            "67.134.143.0/24",
            "216.205.243.0/24",
            "34.85.156.5/32",
            "35.245.108.108/32",
            "34.86.129.193/32",
            "34.86.134.94/32",
            "34.85.222.234/32",
            "34.86.176.234/32",
            "34.86.125.212/32",
            "34.85.224.60/32",
            "34.86.160.49/32",
            "35.245.64.166/32",
            "35.188.226.11/32",
            "34.86.208.228/32",
            "34.85.216.144/32",
            "35.221.22.153/32",
            "34.86.137.108/32",
            "34.86.51.35/32",
            "34.150.221.40/32",
            "34.85.216.70/32",
            "34.86.37.191/32",
            "34.85.214.215/32",
            "35.236.234.82/32",
            "34.86.161.241/32",
            "216.32.181.16",
            "216.178.32.0/20",
            "168.235.224.0/24"
          ]
        }
      },
      {
        "origin": "_netblocks.mimecast.com",
        "record": "v=spf1 include:eu._netblocks.mimecast.com include:us._netblocks.mimecast.com include:za._netblocks.mimecast.com include:de._netblocks.mimecast.com include:au._netblocks.mimecast.com include:ca._netblocks.mimecast.com include:usb._netblocks.mimecast.com ~all",
        "chars_num": 257,
        "use_macro": false,
        "domains": [
          "eu._netblocks.mimecast.com",
          "us._netblocks.mimecast.com",
          "za._netblocks.mimecast.com",

Fields

Fields marked Premium need a paid plan. On a plan without them the key is absent rather than wrong, so a model never reasons over a substituted value.
FieldTypeExampleDescription
hoststringmyspace.comThe domain name being validated
has_spf_recordbooleantrueWhether the domain has SPF record
dns_lookups_numPremiumnumber9Total number of DNS lookups performed
spf_recordstringv=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -allThe complete SPF record string
spf_records_listPremiumarray[9]list of rowsList of SPF records with detailed parsing
└ spf_records_list.0.originPremiumstringmyspace.comDomain origin of SPF record
└ spf_records_list.0.recordPremiumstringv=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -allFull SPF record content
└ spf_records_list.0.chars_numPremiumnumber637Character count of SPF record
└ spf_records_list.0.use_macroPremiumbooleanfalseWhether record uses macros
└ spf_records_list.0.domainsPremiumarray["_netblocks.mimecast.com"]Domains referenced in SPF record
└ spf_records_list.0.authorized_ipsPremiumobject{…}All IP addresses authorized by SPF
└ spf_records_list.0.authorized_ips.ipv4Premiumarray["63.208.226.34","204.16.32.0/22","67.134.143.0/24"]IPv4 addresses authorized to send mail
domains_extractedPremiumarray["myspace.com","_netblocks.mimecast.com","eu._netblocks.mimecast.com"]All domains found in SPF chain
authorized_ipsPremiumobject{…}All IP addresses authorized by SPF
└ authorized_ips.ipv4Premiumarray["63.208.226.34","204.16.32.0/22","67.134.143.0/24"]All IPv4 addresses authorized by SPF
└ authorized_ips.ipv6Premiumarray[]All IPv6 addresses authorized by SPF
issues_foundPremiumarray[]List of SPF validation issues
spf_validbooleantrueWhether SPF record is valid
has_issuesbooleanfalseWhether validation found issues
macros_foundPremiumbooleanfalseWhether SPF record uses macros
ip_passbooleanfalseWhether IP passes SPF check
elapsed_msPremiumnumber431Validation processing time in milliseconds
all_qualifierstringfailThe qualifier on the SPF 'all' mechanism: fail (-all, strict), softfail (~all), neutral (?all) or pass (+all, authorizes any sender). Null when the record has no all mechanism (e.g. defers via redirect)
risk_scorePremiumnumber5Composite 0-100 email-spoofing risk based on the SPF enforcement qualifier and DNS-lookup limit — higher means the domain is more easily spoofed (no SPF or +all scores high; -all scores low)
risk_levelPremiumstringlowRisk band derived from the score: low, medium or high

Why ground on it

A model can produce something that looks like this answer from its training data, and be confidently out of date or simply wrong. This source returns the current value with a shape you can check, which is the difference between an answer you can cite and one you have to hedge.

Point an evaluation at host: it is the field most worth pinning a claim to, and it is either present and current or absent — never plausibly invented.

Failure modes

Errors come back as tool errors with a sentence the model can act on, not a bare status code.

StatusWhat it means
400 / 422The arguments didn't validate. The message names the offending one.
401The OAuth session is invalid or expired — reconnect the server.
403Out of credits. Not a bad key — the month's allowance is spent.
404This source isn't part of VerveContext. Check the catalog.
429Brief rate limit. Retrying after a moment succeeds.

Other ways to use SPF Grounding Data for AI Agents

Set up SPF Grounding Data for AI Agents on VerveContext, or reach the same source a different way. Your VerveContext account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an X-API-Key header, with SDKs for Node, Python and .NET.APIVerve →Reference →
Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.VerveKit →Reference →
Use it in Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheets →Reference →

Frequently asked questions

Do I have to tell the agent to use SPFGroundingDataforAIAgents?

No. The tool's name and description are in the model's context once the server is connected, so it selects the tool when the question calls for it. Naming it explicitly works too and is useful when you want to force the call.

Does connecting the server expose every tool at once?

Yes — one connection lists the whole VerveContext catalog. Clients with a tool budget can usually filter the list; the credit cost is per call, so an unused tool costs nothing.

What does a call cost?

5 credits each time the tool actually runs. A model that reasons about the tool without calling it costs nothing.

Is there a REST version of this?

Yes — the same source is available as a plain HTTPS endpoint on APIVerve, linked above. Same data, same credits, same account.

What's Next?

Continue your journey with these recommended resources

Browse all sources

The full catalog for this door

Connect a client

Claude, Cursor, VS Code and the rest

Plans & credits

What a call costs and how usage resets

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