# 50heads

> 50heads asks fifty verified people a five-second question and returns the distribution of their answers in about ten minutes. Heads answer in a phone app; every answer is signed by the phone's secure hardware and comes from a phone-verified (Tier 1, 20 credits an answer), ID-verified (Tier 2, 42 credits) or trusted-panel (Tier 3, 80 credits) person. What an ask costs is always in credits, never a currency amount; images add 7 credits an answer. Credit packs and head pay are in dollars at today's rate, as on the pricing page. Agents ask through the hosted MCP server at https://mcp.50heads.com/mcp (OAuth 2.1 or an API key) or the REST API at https://api.50heads.com.

Use 50heads when a task needs a human preference, first impression or sanity check that a model cannot supply: which name, which image, which headline people trust. The MCP server has nine tools and each takes an action: estimate, ask, results, questions, projects, webhooks, organization, audit and help. Call estimate with the quote action first (free), then ask with an idempotency key, then wait for or fetch results with the results tool. Results never identify the people who answered.

## Docs

- [Developer docs](https://50heads.com/en-us/docs): authentication, errors, idempotency, rate limits
- [API reference](https://50heads.com/en-us/docs/api): every endpoint with request and response fields
- [MCP setup](https://50heads.com/en-us/docs/mcp): Claude, Claude Code, Cursor, ChatGPT and stdio configuration, the nine tools with their actions and scopes
- [Webhooks](https://50heads.com/en-us/docs/webhooks): events and signature verification
- [SDKs and examples](https://50heads.com/en-us/docs/sdks): curl, TypeScript and Python examples; Python and Go SDKs in preview
- [Zapier](https://50heads.com/en-us/docs/zapier): triggers, actions and search, OAuth scopes, REST hooks and recent events
- [A2A (Agent2Agent)](https://50heads.com/en-us/docs/a2a): the agent card at https://mcp.50heads.com/.well-known/agent-card.json and the JSON-RPC endpoint at https://mcp.50heads.com/a2a: estimate and ask skills, tasks, push notifications; being introduced, so the card answers 404 until it is on for your account
- [n8n](https://50heads.com/en-us/docs/n8n): the n8n-nodes-50heads community node: estimate, ask, get results and a signed webhook trigger

## Product

- [Pricing](https://50heads.com/en-us/pricing): per-answer prices, the price formula, credit packs from $27
- [How we verify](https://50heads.com/en-us/verification): tiers, device attestation, re-checks, data retention
- [For agents](https://50heads.com/en-us/for-agents): MCP install commands; default daily spend cap 5,000 credits per connection
- [Earn](https://50heads.com/en-us/earn): for heads: 60% of each answer's price, withdrawals from $6.70
- [Pay rates by country](https://50heads.com/en-us/earn/rates): what each answer pays and payout methods by country

## Help

- [What is 50heads?](https://50heads.com/en-us/help/getting-started/what-is-50heads): A way to ask fifty verified people one question, and a way to get paid for answering.
- [Get the app and sign in](https://50heads.com/en-us/help/getting-started/get-the-app-and-sign-in): Download 50heads, sign in with Apple, Google or email, and what you need before you can earn.
- [Your first answers](https://50heads.com/en-us/help/getting-started/your-first-answers): How the Answer tab works, how long questions take, and how to get the most from spare minutes.
- [Tiers explained](https://50heads.com/en-us/help/tiers-and-verification/tiers-explained): What Tier 0, 1, 2 and 3 mean for heads and for requesters, and how to move up.
- [Verify your phone](https://50heads.com/en-us/help/tiers-and-verification/verify-your-phone): How phone verification works, which numbers we accept, and what to do if the code doesn't arrive.
- [Verify your ID for Tier 2](https://50heads.com/en-us/help/tiers-and-verification/verify-your-id): What the ID and live-face check involves, the fee, what is kept and what to do if it fails.
- [Monthly re-checks](https://50heads.com/en-us/help/tiers-and-verification/monthly-rechecks): Why we ask Tier 1 heads to confirm their phone each month, and Tier 2 heads for a quick face check.
- [What questions pay](https://50heads.com/en-us/help/earning-and-payouts/what-questions-pay): How pay per answer is set, why some questions pay more, and where to see the rates.
- [Pending and available](https://50heads.com/en-us/help/earning-and-payouts/pending-and-available): Why new earnings are held for a few days, and when they become yours to withdraw.
- [Withdraw your earnings](https://50heads.com/en-us/help/earning-and-payouts/withdraw): The minimum, fees and the automatic month-end payout.
- [Payout methods](https://50heads.com/en-us/help/earning-and-payouts/payout-methods): Which methods your country offers, adding one, removing one and when you can't, and why changing a method asks you to confirm it's you.
- [Tax details and statements](https://50heads.com/en-us/help/earning-and-payouts/tax-details): Why we ask for tax details before your first payout in some countries, the W-9 and Form 1099-NEC in the US, and where to find your statements.
- [Signing in and linked accounts](https://50heads.com/en-us/help/account/sign-in-options): Apple, Google, email and passkey sign-in, two-step sign-in, linking methods, sessions and signing out everywhere.
- [Passkeys, two-step sign-in and recovery codes](https://50heads.com/en-us/help/account/passkeys-and-two-step): Adding a passkey, turning on two-step sign-in with an authenticator app, keeping recovery codes, and what to do if you lose every way in.
- [Tags and targeted questions](https://50heads.com/en-us/help/account/tags-and-matching): How your age band, gender and tags match you with questions, and what requesters see.
- [Appeals](https://50heads.com/en-us/help/account/appeals): How to ask for a review of an unpaid answer, a tier change or another decision about your account and what happens next.
- [Notifications and emails](https://50heads.com/en-us/help/account/notifications): The notifications the app sends heads, the emails everyone can choose (results, low credits, expiring credits, weekly digest, new audiences, tips), and how to turn each off.
- [Close your account](https://50heads.com/en-us/help/account/close-your-account): What happens to your money, teams, answers and data when you close your account.
- [Writing questions that get clear answers](https://50heads.com/en-us/help/asking/writing-good-questions): Eight rules for a question people can answer well.
- [Question types](https://50heads.com/en-us/help/asking/question-types): The eleven kinds of question you can ask, what each is good for, and how each is priced.
- [How many heads, and which tier](https://50heads.com/en-us/help/asking/choosing-tier-and-heads): How to choose the number of heads and the tier, and when Tier 2 is worth the extra.
- [Targeting by country, age, gender and tag](https://50heads.com/en-us/help/asking/targeting): Asking people in certain countries or with certain traits, pool sizes and what it costs.
- [Ask people you already know](https://50heads.com/en-us/help/asking/your-audience): Share one question with your own customers or team through a link. What it costs, what you get back, and what 50heads does and does not check.
- [Organizing and reusing your questions](https://50heads.com/en-us/help/asking/organise-and-reuse): Projects, labels, bookmarks, archive and your own reference; drafts, saved audiences and templates; asking more heads of a finished question.
- [How pricing works](https://50heads.com/en-us/help/credits-and-billing/how-pricing-works): Credits, the price per answer, what changes it, and what you're charged when.
- [Buying credits](https://50heads.com/en-us/help/credits-and-billing/buying-credits): Packs, paying by card or bank transfer, automatic top-up and expiring credits.
- [Invoices and VAT](https://50heads.com/en-us/help/credits-and-billing/invoices-and-vat): Where to find invoices, how VAT is charged and adding a VAT number.
- [Refunds, canceling and disputes](https://50heads.com/en-us/help/credits-and-billing/refunds-and-cancelling): Canceling a live question, refunds of unused credits, and disputing a result.
- [Reading your results](https://50heads.com/en-us/help/results/reading-results): How many chose each option, the leader, a go or no go, who beats whom, and what each answer shows.
- [What confidence means](https://50heads.com/en-us/help/results/confidence): How strongly the answers favor the leading option, how we work it out, and what to do when confidence is low.
- [Export and share results](https://50heads.com/en-us/help/results/export-and-share): Downloading answers as CSV or JSON lines, what the cohort hash means, and sharing results with a public page or a private link.
- [Reading a result from your audience](https://50heads.com/en-us/help/results/your-audience-results): Why a result from a shared link reads differently from a heads result, what is missing and why, and what the exports say.
- [API keys](https://50heads.com/en-us/help/api-and-mcp/api-keys): Making, scoping, capping, rotating and revoking API keys.
- [Connect Claude, Cursor or ChatGPT](https://50heads.com/en-us/help/api-and-mcp/connect-an-agent): Adding the 50heads MCP server to an AI assistant, what it can do and how to stop it.
- [Spend caps](https://50heads.com/en-us/help/api-and-mcp/spend-caps): Daily, monthly and per-question caps on keys and connections, what happens at a cap, how to check what's left, and the alerts that warn you.
- [Webhooks](https://50heads.com/en-us/help/api-and-mcp/webhooks): Getting told when a question is answered, checking a webhook really came from us, and changing its secret safely.
- [Use 50heads in Microsoft Teams](https://50heads.com/en-us/help/api-and-mcp/microsoft-teams): Adding the 50heads app in Microsoft Teams, connecting it to your 50heads account, asking with ask, checking the balance, the results card, disconnecting and uninstalling, and getting help.
- [Use 50heads in Slack](https://50heads.com/en-us/help/api-and-mcp/slack): Adding 50heads to a Slack workspace, asking with /50heads ask, reading the results card, the daily cap and removing it.
- [Use 50heads with Zapier](https://50heads.com/en-us/help/api-and-mcp/zapier): Connecting 50heads to Zapier, the triggers and actions, what Zaps cost, the daily cap, retries, disconnecting and fixing problems.
- [Connect another agent with A2A](https://50heads.com/en-us/help/api-and-mcp/agent-to-agent): Letting another AI agent ask 50heads over the Agent2Agent (A2A) protocol, what it costs, how approvals and notifications work, and how to stop it.
- [Use 50heads in Jira](https://50heads.com/en-us/help/api-and-mcp/jira): Adding 50heads to a Jira site, asking from an issue with a /50heads ask comment, the results comment, the daily cap and removing it.
- [Use 50heads in Linear](https://50heads.com/en-us/help/api-and-mcp/linear): Adding 50heads to a Linear workspace, asking from an issue with a /50heads ask comment, the results comment, the daily cap and removing it.
- [Your team](https://50heads.com/en-us/help/teams/your-team): Ask together from shared credits. Inviting people, what each role can do, monthly limits, keys members make, leaving a team and handing it over.
- [Team credits and limits](https://50heads.com/en-us/help/teams/team-credits): How a team's shared balance works, who can buy credits for it, what monthly limits count, and what a team cannot do with credits.
- [Closing a team](https://50heads.com/en-us/help/teams/closing-a-team): Close a team you no longer need. What happens to its credits, keys, apps and questions, and what stops a team from closing.
- [Your organization and its domains](https://50heads.com/en-us/help/teams/organisation-and-domains): What an organization is, verifying your email domain with a DNS record, the daily re-check and 7-day grace, the three policies, who can change them, and the activity log.
- [Teams in an organization](https://50heads.com/en-us/help/teams/organisation-teams): Several teams under one organization. Making a team, the main team, moving an existing team in, invitations and people across teams, and cost centers on invoices and spend reports.
- [Single sign-on for your organization](https://50heads.com/en-us/help/teams/single-sign-on): Let people sign in with their work account through Okta, Microsoft Entra ID or Google Workspace, with OpenID Connect or SAML. Set-up, testing, requiring it, break-glass owners and fixing errors.
- [Provisioning and security policies](https://50heads.com/en-us/help/teams/provisioning-and-security): Let Okta or Microsoft Entra ID add, change and remove people in your teams through SCIM. Group roles, what happens when someone leaves, sign-in rules and ending someone's sessions.
- [The audit log](https://50heads.com/en-us/help/teams/audit-log): What your organization's audit log records, who can see it, filtering and exporting it as JSONL or CSV, how long events are kept (six years unless you change it) and legal holds.
- [Service accounts for agents and scripts](https://50heads.com/en-us/help/teams/service-accounts): Accounts your organization owns for its own agents and scripts, so they keep working when people leave. Making one, scopes and spend caps, signing in with a client secret or a private key, and turning one off.
- [Spend approvals](https://50heads.com/en-us/help/teams/spend-approvals): Hold your agents' bigger asks until a person approves them. Who decides, how Face ID or a fresh check works, what an agent is told, how long an approval waits and how the credits are held and given back.
- [Send your 50heads data to your own warehouse](https://50heads.com/en-us/help/teams/warehouse-export): Write your organization's events and audit log to your own Amazon S3, Cloudflare R2 or Google Cloud Storage bucket on a schedule, or read them from the event stream with an API key or Airbyte.
- [What you can and can't ask](https://50heads.com/en-us/help/trust-and-safety/what-you-can-ask): The kinds of question we refuse, image rules, and why.
- [How moderation works](https://50heads.com/en-us/help/trust-and-safety/moderation): How questions are checked before heads see them, and how heads can flag a question.
- [Tell us about a problem](https://50heads.com/en-us/help/trust-and-safety/flag-a-concern): How to flag a harmful question, a security issue or an account you think is misusing 50heads.
- [What we keep about you](https://50heads.com/en-us/help/privacy/what-we-keep): The data 50heads holds, why, and for how long.
- [Your data rights](https://50heads.com/en-us/help/privacy/your-rights): Getting a copy of your data, correcting it, deleting it, and complaining.
- [Deleting your data](https://50heads.com/en-us/help/privacy/delete-your-data): What gets deleted when you ask, what we have to keep, and how long it takes.
- [Answering a question someone sent you](https://50heads.com/en-us/help/privacy/answering-a-link): What 50heads keeps when you answer a question from a link, what it never has, and who asked.
- [AI and your data](https://50heads.com/en-us/help/privacy/ai-and-your-data): What 50heads uses AI for, what it never does with your data, where it runs and who sees what.
- [Emails about subprocessors](https://50heads.com/en-us/help/privacy/subprocessor-notices): Why we email every account when a company that handles your data changes, and how to object.

## Blog

- [Poll vs survey: when one question is enough](https://50heads.com/en-us/blog/poll-vs-survey): How to tell whether you need a one-question poll or a longer survey, with a short decision list, real examples and the cases where you should use a survey instead.
- [PickFu alternatives for fast consumer feedback: what to compare in 2026](https://50heads.com/en-us/blog/pickfu-alternatives): Eight things to compare when choosing a fast-feedback tool: question types, audience, verification, speed, price, your own audience, API access and sharing results. Where 50heads fits, and where PickFu is the better fit.
- [Mechanical Turk has closed. Where to move quick human judgments](https://50heads.com/en-us/blog/moving-from-mturk): Amazon Mechanical Turk closed at the end of September 2026. Here is how to move the one-question jobs to 50heads, what maps to what, and which jobs need a different tool.
- [How we check each answer comes from a real person](https://50heads.com/en-us/blog/how-we-verify): Phone integrity checks, one phone number per head, ID checks at Tier 2 and the checks that keep running afterwards. What we do, what we keep, and why we publish it.
- [What heads earn, and why we publish it](https://50heads.com/en-us/blog/what-heads-earn): Our pay rates, the share of every answer that goes to the head, how payouts work, and the honest line about what answering questions is and isn't.
- [How to share a quick research result without building a deck](https://50heads.com/en-us/blog/share-research-results-without-a-deck): What a quick result needs to say, a reusable one-page template, and how to share it as a public page, a private link, a PDF report or an image from 50heads.
- [Audience targeting for a short question](https://50heads.com/en-us/blog/audience-targeting-for-quick-questions): How to choose the smallest set of targeting conditions that changes your decision, what each trait costs on 50heads, why over-targeting slows a question down, and how to save an audience to reuse.
- [How an AI agent can ask verified people before it acts](https://50heads.com/en-us/blog/ai-agent-ask-real-people): How an AI assistant can use 50heads to ask verified people a short question, with the estimate first, a spend cap, a clear trigger for when to ask, and the guardrails that stop it asking too often.
- [How to add a human feedback API to a product workflow](https://50heads.com/en-us/blog/add-a-human-feedback-api): How to call the 50heads API from your code: estimate, ask, wait, act. With a working example and production guidance on idempotency keys, waiting, failure paths and when a human check is worth making.
- [What 50 answers can and cannot tell you](https://50heads.com/en-us/blog/what-50-answers-can-tell-you): A plain guide to reading a result from 50 answers: what a narrow lead, a strong lead and a three-way split each mean, what 50 answers cannot show, and what to do next.
- [Fast customer feedback in product discovery: six decisions worth testing](https://50heads.com/en-us/blog/fast-customer-feedback-product-discovery): Six product discovery decisions that suit one short question, with the question shape for each and when not to use it: name, message, concept, visual, priority and first impression.
- [Does paying people fairly improve research quality?](https://50heads.com/en-us/blog/does-fair-pay-improve-research-quality): What the evidence says about pay and data quality, what it does not show, and exactly how 50heads splits what a requester pays between the head, verification and the platform.
- [What makes an online research panel high quality? A buyer's checklist](https://50heads.com/en-us/blog/online-research-panel-quality): Seven questions to put to any online research panel, covering identity, duplicates, attention, device signals, pay, transparency and appeals, with an honest list of where 50heads is still limited.
- [How can you tell whether online research answers came from real people?](https://50heads.com/en-us/blog/real-people-in-online-research): Four different threats to online answers, fake accounts, automated environments, inattentive people and AI-written text, and the check that addresses each. What 50heads checks, what it does not claim, and questions to ask any provider.
- [Human feedback vs AI feedback: when a model is not your customer](https://50heads.com/en-us/blog/human-feedback-vs-ai-feedback): A plain way to decide when an AI model can give you the feedback you need and when you need to ask people, based on what your source of truth is: language quality, factual reasoning or human taste.
- [How to test packaging with verified people before you print it](https://50heads.com/en-us/blog/how-to-test-packaging-design): How to compare packaging designs one quality at a time, including shelf stand-out, trust, premium feel and clarity, with a test order, a worked example and the limits of testing on a phone screen.
- [How to test ad creative before you spend on media](https://50heads.com/en-us/blog/how-to-test-ad-creative): How to compare ad images, hooks and copy with a quick one-question test before you pay for media, which questions to ask for each, and why it does not replace live conversion data.
- [How to test a landing-page headline before buying traffic](https://50heads.com/en-us/blog/how-to-test-a-headline): How to test whether a headline is clear and whether it makes people want to know more, as two separate questions, before you pay for a live A/B test, with a worked example and the limits.
- [Logo testing: how to choose between designs without asking your team](https://50heads.com/en-us/blog/how-to-test-logo-designs): How to compare logo designs with outside people, one criterion at a time, including recognition, trust and category fit, and why a preference result is not a verdict on design quality.
- [How to test a product name before launch](https://50heads.com/en-us/blog/how-to-test-a-product-name): A repeatable way to test product or brand names with one question per criterion, such as trust, memorability or fit, instead of "Which do you like?", with a worked example and the limits of a name test.
- [How many people do you need for a preference test?](https://50heads.com/en-us/blog/preference-test-sample-size): What 20, 50 and 100 answers can and cannot tell you in a preference test, with worked examples of how the same split reads differently at each size.
- [How to write a question that does not lead people](https://50heads.com/en-us/blog/write-a-question-that-does-not-lead): Five ways a question steers the answer, each with a before and after, and a short checklist for writing short, neutral questions.
- [A/B testing vs preference testing: when to use each](https://50heads.com/en-us/blog/ab-testing-vs-preference-testing): A/B testing watches what live visitors do. Preference testing asks people to choose before launch. A plain comparison of traffic, speed, risk and what each measures, and how to use both in order.
- [How to test a product idea before you build it](https://50heads.com/en-us/blog/how-to-test-a-product-idea): A practical order for testing a product idea: choose the decision, put two to four concepts in front of people, read the result as direction, then test demand and price separately. Includes what a quick preference test cannot show.
- [What is preference testing? A practical guide to choosing between ideas](https://50heads.com/en-us/blog/what-is-preference-testing): What preference testing is, when it helps, what it can't prove, and how to run a small test with one question and a handful of options, with a worked example from question to result.

## Optional

- [Trust center](https://50heads.com/en-us/trust): the security and privacy controls we can show, and how to ask for documents
- [Full text for language models](https://50heads.com/llms-full.txt): help center, comparison pages and blog as plain text
- [Terms](https://50heads.com/en-us/legal/terms): requester terms, including the agent clause
- [Acceptable use](https://50heads.com/en-us/legal/acceptable-use): what may not be asked