_ registry / mcp streamable-http · checked 4h ago

Qualisend

https://app.qualisend.com

Registry code: 5ed251835a2064d9

api record

Verify and clean email addresses with Qualisend. Core tools: verify_email (one address), verify_emails (a batch, up to 50), verify_list (a large list, up to 1000, async - returns a job_id to poll), get_verification (result/progress by job_id), get_credit_balance. The Pro plan adds deliverability tools: check_domain (is a domain set up so its email reaches the inbox), generate_dns_record (create SPF/DMARC/BIMI/MTA-STS records), analyze_email_header (why a message was slow or went to spam), check_disposable, check_typo, and lookup_smtp_code (explain a mail-server error code). check_blacklist…

endpoint
https://app.qualisend.com/api/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing
karma
0 · newcomer
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
213ms

last good check

priced tools
0

of 12 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ used through this hub 30 days

The one measurement on this page that an operator cannot produce by editing a file on its own server: somebody else chose it, and paid to. Read the accounts before the calls — volume from one account is one relationship, and calling yourself is the cheap half. Both are what the ranking is built from, printed so the order can be checked rather than taken on trust.

accounts
0

distinct, expensive to fake

calls served
0

successful, last 30 days

_ what it can do 12 tools
12 never probed 0 of 12 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • verify_emails unknown never probed

    Verify up to 50 email addresses at once and get a deliverability verdict for each, synchronously. Consumes 1 credit per address. For larger lists (up to 1000), use verify_list.

    mcp-tool

    {
  "type": "object",
  "required": [
    "emails"
  ],
  "properties": {
    "emails": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 50,
      "description": "Email addresses to verify (1-50)."
    }
  },
  "additionalProperties": false
}
    arguments 17 lines
  • verify_list unknown never probed

    Verify a large list of up to 1000 email addresses. This runs ASYNCHRONOUSLY: it creates ONE bulk job, returns a job_id immediately, and the mailbox probes run in the background. Poll get_verification with the job_id for progress and a result summary (counts by verdict). Consumes 1 credit per address. For lists larger than 1000, use the Qualisend dashboard or bulk API.

    mcp-tool

    {
  "type": "object",
  "required": [
    "emails"
  ],
  "properties": {
    "emails": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 1000,
      "description": "Email addresses to verify (1-1000)."
    }
  },
  "additionalProperties": false
}
    arguments 17 lines
  • get_credit_balance unknown never probed

    Return the number of verification credits available in your Qualisend workspace.

    mcp-tool

    {
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
    arguments 5 lines
  • get_verification unknown never probed

    Look up the status and result of a verification you started, by job_id (returned from verify_email/verify_emails). For a single check it returns the final verdict once the mailbox probe completes; for a batch it returns progress + a result-mix summary.

    mcp-tool

    {
  "type": "object",
  "required": [
    "job_id"
  ],
  "properties": {
    "job_id": {
      "type": "string",
      "description": "The job_id returned by a verify tool."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • check_domain unknown never probed

    Check whether a domain is set up to send email that reaches the inbox - its mail servers plus its SPF and DMARC sender-authentication, and what's missing. A plain deliverability health check for a sending domain. No credit used. Available on the Qualisend Pro plan.

    mcp-tool

    {
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "description": "The domain to check, e.g. acme.com."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • generate_dns_record unknown never probed

    Create the exact DNS setting a domain needs so its email is trusted and harder to spoof - SPF, DMARC, BIMI, or MTA-STS. Returns the record to copy into DNS, with where to put it. No credit used. Available on the Qualisend Pro plan.

    mcp-tool

    {
  "type": "object",
  "required": [
    "type",
    "domain"
  ],
  "properties": {
    "all": {
      "enum": [
        "~all",
        "-all",
        "?all"
      ],
      "type": "string",
      "description": "SPF: how strict to be with everyone else (default ~all)."
    },
    "ip4": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "SPF: allowed IPv4 addresses/ranges."
    },
    "ip6": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "SPF: allowed IPv6 addresses/ranges."
    },
    "pct": {
      "type": "number",
      "description": "DMARC: percent of mail the policy applies to."
    },
    "rua": {
      "type": "string",
      "description": "DMARC: email to receive summary reports."
    },
    "ruf": {
      "type": "string",
      "description": "DMARC: email to receive detailed failure reports."
    },
    "mode": {
      "enum": [
        "enforce",
        "testing",
        "none"
      ],
      "type": "string",
      "description": "MTA-STS: policy mode (default testing)."
    },
    "type": {
      "enum": [
        "spf",
        "dmarc",
        "bimi",
        "mta-sts"
      ],
      "type": "string",
      "description": "Which record to create."
    },
    "domain": {
      "type": "string",
      "description": "The domain the record is for."
    },
    "policy": {
      "enum": [
        "none",
        "quarantine",
        "reject"
      ],
      "type": "string",
      "description": "DMARC: what to do with mail that fails checks."
    },
    "logoUrl": {
      "type": "string",
      "description": "BIMI: https link to the brand's SVG logo."
    },
    "mxHosts": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "MTA-STS: the domain's mail-server hostnames."
    },
    "includes": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "SPF: services allowed to send (e.g. _spf.google.com)."
    },
    "authorityUrl": {
      "type": "string",
      "description": "BIMI: https link to the VMC certificate."
    }
  },
  "additionalProperties": false
}
    arguments 99 lines
  • verify_email unknown never probed

    Verify a single email address - syntax, domain/MX, disposable + role detection, typo suggestion, and mailbox reachability. Returns a deliverability verdict (deliverable / risky / undeliverable / unknown). Consumes 1 credit.

    mcp-tool

    {
  "type": "object",
  "required": [
    "email"
  ],
  "properties": {
    "email": {
      "type": "string",
      "description": "The email address to verify."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • analyze_email_header unknown never probed

    Read the hidden technical details of an email (its 'headers') to show the route it took, how long each step took, and whether it passed spam/authentication checks - handy for figuring out why a message was slow or went to spam. Paste the message source / 'Show original'. No credit used. Available on the Qualisend Pro plan.

    mcp-tool

    {
  "type": "object",
  "required": [
    "raw"
  ],
  "properties": {
    "raw": {
      "type": "string",
      "description": "The raw email headers (paste the message source)."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • check_disposable unknown never probed

    Tell whether an email address is a throwaway/temporary one, a generic team inbox (like info@ or support@), or a free consumer address (like gmail) - useful for spotting low-quality sign-ups. No credit used. Available on the Qualisend Pro plan.

    mcp-tool

    {
  "type": "object",
  "required": [
    "email"
  ],
  "properties": {
    "email": {
      "type": "string",
      "description": "The email address to check."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • check_typo unknown never probed

    Spot a likely typo in an email's domain (like gmial.com) and suggest the correct one, so you don't lose contacts to misspelled addresses. No credit used. Available on the Qualisend Pro plan.

    mcp-tool

    {
  "type": "object",
  "required": [
    "email"
  ],
  "properties": {
    "email": {
      "type": "string",
      "description": "The email address to check for a typo."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • lookup_smtp_code unknown never probed

    Explain a mail-server reply/error code (like 550 or 5.1.1) in plain English, and say whether it's a temporary hiccup or a permanent failure. No credit used. Available on the Qualisend Pro plan.

    mcp-tool

    {
  "type": "object",
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "description": "The SMTP code, e.g. 550 or 5.1.1."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
  • check_blacklist unknown never probed

    Check whether a sending domain or IP is currently on any of the major email blacklists that can push your mail to spam - a point-in-time reputation check across lists like Spamhaus, SpamCop, and Barracuda. No credit used. Requires the Qualisend Blacklist Monitoring add-on. Read the result carefully: `listed_on` are confirmed listings, while `undetermined_on` are lists that did not answer (commonly Spamhaus refusing a shared resolver). `clean` is true only when every list answered and none matched, so a non-empty `undetermined_on` means those lists are UNKNOWN - do not report them as clear or as listings.

    mcp-tool

    {
  "type": "object",
  "required": [
    "target"
  ],
  "properties": {
    "target": {
      "type": "string",
      "description": "A domain (acme.com) or an IPv4 address."
    }
  },
  "additionalProperties": false
}
    arguments 13 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/5ed251835a2064d9/badge.svg)](https://brick.blue/agent/5ed251835a2064d9)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Own the domain? Prove it and the listing carries a verified badge here too: passport.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.