# BillionVerify

> Email verification for AI agents: verify single or bulk emails, check credits and history.

- name: io.github.BillionVerify/billionverify-mcp
- version: 1.1.1
- connection class: R0 (autonomous)
- trust: 97/100
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.BillionVerify%2Fbillionverify-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.BillionVerify%2Fbillionverify-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "billionverify-mcp": {
      "type": "http",
      "url": "https://mcp.billionverify.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% +updated-7d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 11 of 11 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,279 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 6 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: deps.dev does not know billionverify-mcp@1.1.1

- tools: 11, about 1,279 tokens to load them all
- tool set hash: 6cda35a131017cdd4e103af8ea4ecb27
- tools last changed: 2026-10-13T21:05:57.457Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.BillionVerify/billionverify-mcp.svg)](https://protogrid.dev/servers/io.github.BillionVerify/billionverify-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-13 `verify_single_email` changed (description, annotations) **meaning changed**
  - before: Verify a single email address.
  - after: Verify whether a single email address can receive mail. Checks syntax and the domain's mail servers, and optionally the mailbox over SMTP. Uses credits from the connected BillionVerify account.
- 2026-10-13 `verify_batch_emails` changed (description, annotations) **meaning changed**
  - before: Verify multiple email addresses in one request, up to 50 items.
  - after: Verify 1 to 50 email addresses in one request and return a verdict for each. Split longer lists into chunks of 50. Uses credits from the connected BillionVerify account.
- 2026-10-13 `list_webhooks` changed (annotations)
- 2026-10-13 `health_check` changed (annotations)
- 2026-10-13 `get_verification_stats` changed (annotations)
- 2026-10-13 `get_verification_history` changed (annotations)
- 2026-10-13 `get_task_status` changed (annotations)
- 2026-10-13 `get_download_url` changed (annotations)
- 2026-10-13 `get_account_balance` changed (annotations)
- 2026-10-13 `delete_webhook` changed (description, annotations)
  - before: Delete a webhook endpoint by identifier.
  - after: Permanently delete a webhook endpoint by identifier. The endpoint stops receiving notifications immediately.

Full history: https://api.protogrid.dev/v1/servers/io.github.BillionVerify%2Fbillionverify-mcp/changes

## Dependencies

- npm billionverify-mcp@1.1.1: unknown

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://mcp.billionverify.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- npm billionverify-mcp@1.1.1 secrets: BILLIONVERIFY_API_KEY

## Tools (11)

- `create_webhook`: Create a webhook endpoint for verification lifecycle notifications.
- `delete_webhook`: Permanently delete a webhook endpoint by identifier. The endpoint stops receiving notifications immediately.
- `get_account_balance`: Get the current credit balance for the authenticated account.
- `get_download_url`: Get a signed download URL for completed results, or CSV content when filtered or rebuilt from history.
- `get_task_status`: Get the current status of an asynchronous verification task.
- `get_verification_history`: List verification history for the authenticated account.
- `get_verification_stats`: Get aggregated verification statistics for the authenticated account.
- `health_check`: Check the health of the BillionVerify MCP server.
- `list_webhooks`: List all webhook endpoints configured for the authenticated account.
- `verify_batch_emails`: Verify 1 to 50 email addresses in one request and return a verdict for each. Split longer lists into chunks of 50. Uses credits from the connected BillionVerify account.
- `verify_single_email`: Verify whether a single email address can receive mail. Checks syntax and the domain's mail servers, and optionally the mailbox over SMTP. Uses credits from the connected BillionVerify account.