Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Inspect SendPost delivery statistics, sending IPs, message metadata, domains, and suppressions.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://sendpost.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http sendpost https://sendpost.usefulapi.io/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"sendpost": {
"url": "https://sendpost.usefulapi.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"sendpost": {
"type": "http",
"url": "https://sendpost.usefulapi.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://sendpost.usefulapi.io/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
sendpost_list_subaccountsREAD (account key): List sub-accounts and safe account metadata. API keys and SMTP credentials are never returned.
sendpost_get_subaccountREAD (account key): Get a sub-account's safe metadata, labels and blocked state. Credentials are excluded.
sendpost_list_ipsREAD (account key): List sending IPs, warmup and state metadata. Does not allocate or change IPs.
sendpost_get_ipREAD (account key): Inspect an existing sending IP's public address, reverse DNS and warmup state.
sendpost_list_ip_poolsREAD (account key): List IP pool names, routing strategy, overflow settings and safe public IP metadata.
sendpost_get_ip_poolREAD (account key): Inspect one IP pool's routing strategy, overflow settings and public IP metadata. Provider credentials and routing internals are excluded.
sendpost_list_account_statsREAD (account key): Daily delivery, bounce, open, click, unsubscribe and spam counts across sub-accounts. Use up to 366 days per call.
sendpost_get_account_statsREAD (account key): Aggregate delivery and engagement counts across sub-accounts over a date range, up to 366 days.
sendpost_get_account_group_statsREAD (account key): Aggregate delivery and engagement counts for an existing group/tag across sub-accounts, up to 366 days.
sendpost_list_subaccount_statsREAD (account key): Read a sub-account's delivery and engagement statistic records for a date range, up to 366 days.
sendpost_get_subaccount_statsREAD (account key): Aggregate delivery and engagement counts for one sub-account over a date range, up to 366 days.
sendpost_get_message_metadataREAD (account key): Inspect a submitted message's ID, sender, recipient, subject, groups and routing metadata. Excludes bodies, attachments, custom headers and recipient custom fields. Large messages may exceed the 1 MiB read limit.
sendpost_list_domainsREAD (sub-account key): Audit sending domains, DNS record configuration and verification failures. Does not create or verify domains.
sendpost_get_domainREAD (sub-account key): Inspect a sending domain's DNS records and verification status.
sendpost_list_suppressionsREAD (sub-account key): Inspect suppressions and documented reasons within a date range, with pagination. Does not add or remove suppressions.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 42 ms (HTTP 200)
No sign-in needed
Read 15 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.6.3) reached the registry yesterday.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Dechonet MCP
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
https://sendpost.usefulapi.io/mcp
https://sendpost.usefulapi.io/mcp.claude mcp add --transport http sendpost https://sendpost.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "sendpost": { "url": "https://sendpost.usefulapi.io/mcp" } } }
Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your SendPost credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/sendpost/
Connect with a SendPost account or sub-account API key for the matching read-only tools. SendPost access is purchased separately.
| Tool | Type | What it does |
|---|---|---|
sendpost_list_subaccounts | read | List SendPost sub-accounts |
sendpost_get_subaccount | read | Get SendPost sub-account |
sendpost_list_ips | read | List SendPost sending IPs |
sendpost_get_ip | read | Get SendPost sending IP |
sendpost_list_ip_pools | read | List SendPost IP pools |
sendpost_get_ip_pool | read | Get SendPost IP pool |
sendpost_list_account_stats | read | List SendPost account daily statistics |
sendpost_get_account_stats | read | Get SendPost account aggregate statistics |
sendpost_get_account_group_stats | read | Get SendPost account group statistics |
sendpost_list_subaccount_stats | read | List SendPost sub-account statistics |
sendpost_get_subaccount_stats | read | Get SendPost sub-account aggregate statistics |
sendpost_get_message_metadata | read | Get SendPost message metadata |
sendpost_list_domains | read | List SendPost sending domains |
sendpost_get_domain | read | Get SendPost sending domain |
sendpost_list_suppressions | read | List SendPost suppressed recipients |
sendpost_usage_status | meta | Usage status (free-tier meter) |
sendpost_request_feature | meta | Request a missing feature |
sendpost_upgrade | meta | Upgrade to Pro or Pro+ |
sendpost_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited* |
\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.
Pro covers this server only. Subscribe with sendpost_upgrade (it returns a Stripe Checkout link). Cancel any time with sendpost_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running sendpost_upgrade before then undoes the cancel. Or write to support@usefulapi.io.