usefulapiWillo MCP server
Read interview, participant and department metadata in Willo. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the Willo connector, then ask in plain words. The AI picks the tools.
- Show me the Willo records available to my account.
What you can do with Willo in Claude and ChatGPT
For recruiting teams on a Willo Enterprise contract who review interview and participant metadata.
List interviews with their metadata
Read a bounded list of Willo interviews with their metadata. Recordings, identity media and assessment answers are not returned.
See the participants in interviews
Read a bounded list of participants with their metadata, then compare them with the list of interviews.
Review department and interview metadata
Read bounded lists of departments and interviews, then summarize the metadata returned.
How do I connect Willo?
Before you connect
The login page asks for your API token.
Integration API key for a customer covered by the reviewed 6 July 2026 Enterprise terms. Interview and participant metadata only; no identity media or hiring decisions.
Claude claude.ai · Desktop
- Open Customize → Connectors, then click + Add → Add custom connector.
- Enter the name Willo and this URL, then click Add:https://
willo. usefulapi. io/ mcp - Claude opens the login page: enter your API token.
- In a chat, click + → Connectors and turn on Willo.
Team and Enterprise: an Owner adds the connector for the organization first.
ChatGPT chatgpt.com
- Open Plugins, click +, then Add custom MCP server.
- Enter the name Willo and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
willo. usefulapi. io/ mcp - ChatGPT opens the login page: enter your API token.
- In Plugins, install Willo, then choose it in a chat.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Claude Code
Run this command, then run /mcp in Claude Code to log in:
Cursor
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"willo": {
"url": "https://willo.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"willo": {
"type": "http",
"url": "https://willo.usefulapi.io/mcp"
}
}
} Codex
Run these commands. The second one opens the login page:
Other clients
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
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: the login page asks for your API token. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Willo server only. Ask your AI to run willo_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with willo_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with willo_upgrade before then undoes the cancel. Or write to [email protected].
Tools 7
Show all 7 tools (the AI picks them for you)
Read only · 3
- List interviews
willo_list_interviewsRead a bounded Willo interviews list. Enterprise contract required. Returns metadata only; identity media, recordings and assessment answers are excluded. - List participants
willo_list_participantsRead a bounded Willo participants list. Enterprise contract required. Returns metadata only; identity media, recordings and assessment answers are excluded. - List departments
willo_list_departmentsRead a bounded Willo departments list. Enterprise contract required. Returns metadata only; identity media, recordings and assessment answers are excluded.
Your usefulapi plan · 4
- Usage status (free-tier meter)
willo_usage_statusReport the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter. - Request a missing feature
willo_request_featureTell usefulapi that the user needs something the Willo tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. - Upgrade to Pro or Pro+
willo_upgradeGet a paid plan for Willo (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter. - Cancel the Pro subscription
willo_cancel_subscriptionCancel the caller's Willo Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run willo_upgrade later to undo the cancel before the period ends. Does not count against the meter.
FAQ
What can I do with Willo in Claude or ChatGPT?
List interviews with their metadata. See the participants in interviews. Review department and interview metadata. See what you can do for the details.
Is this an official Willo product?
No. usefulapi is an independent service. It is not affiliated with or endorsed by Willo. The server calls the Willo API with your own Willo access, so it sees only the data that your account can see.
Can I connect Willo to Claude or ChatGPT?
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
What do I need to connect?
The login page asks for your API token. See Before you connect for where to find it.
Do I put my Willo key or an Authorization header in the client config?
No. 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: the login page asks for your API token. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
How do you keep my Willo credentials?
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Willo API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Willo.
Can the AI change my Willo data?
All 3 Willo tools are marked read-only.
What does it cost?
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Willo server only. Cancel any time: your paid plan then runs to the end of the paid period. Run willo_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run willo_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run willo_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a Willo tool that I need is missing?
Tell the AI what you wanted to do. It can send the request with willo_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Which AI clients can I use?
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.