FullEnrich vs Hunter.io (2026): Data, Pricing and API Compared

Hunter.io is the cheaper way to find work emails at any volume you can order online. FullEnrich is the better pick when you need mobile numbers, because it asks 25+ sources for each contact. At 1M records, Hunter publishes a price and FullEnrich does not.

Verdict

• Pick FullEnrich if you hold names or LinkedIn URLs and need work emails and mobiles filled in. You pay only for what it finds (FullEnrich pricing, September 2026).
• Pick Hunter.io if email is the job. It finds and verifies one address per credit, sells a published 1M tier, and adds sequences and a browser extension (Hunter pricing, September 2026).
• Pick neither if you build and pull whole audiences by API at volume, with titles, industries and funding to filter on before you spend. LeadOcean is one option, covered below.

Side by side

Data and coverage

FullEnrich is a service you send a list to. Hunter is an email index you query by domain or by name. The two numbers in the table are not the same kind of count.

FullEnrich lists 800M people and 50M companies for search, and search results carry no emails or phones. Its own 1.6B figure is a customer quote about coverage, not a database size (FullEnrich MCP page, September 2026). Hunter publishes no database size. Its homepage shows a running counter of 150,430,313 email addresses verified and cites public sources of data (Hunter, October 2026). That counts verifications, not people.

Email quality works differently. FullEnrich runs a triple verification and returns four statuses: deliverable, high probability, catch-all and invalid (FullEnrich docs, September 2026). Hunter verifies each address it finds and returns valid, accept_all or unknown (Hunter API docs, September 2026). FullEnrich's 80% find rate is the vendor's claim. We did not test it.

Phones are where the gap is. FullEnrich's waterfall asks 25+ sources, so a miss at one source is a hit at the next. Hunter has a phone_number field on Domain Search and Email Finder, but it is not what the product is sold on, and it publishes no phone count. Run 200 rows of your own list through both before you commit.

API and developer experience

Both tools have a REST API on every plan. Hunter answers one lookup in one call. FullEnrich starts a job and tells you when it is done. Placeholders below stand in for real people.

Hunter, find one work email from a name and a domain.

curl "https://api.hunter.io/v2/email-finder?domain=acme.com&first_name=Jane&last_name=Doe" \
  -H "X-API-KEY: $HUNTER_API_KEY"

The call is synchronous and costs 1 credit only if an address is found. Each address comes back verified, with a status and a score. You send the key in the X-API-KEY header, the api_key query parameter or a Bearer token (Hunter API docs, September 2026).

FullEnrich, start a bulk enrichment for one contact. It takes up to 100.

curl --request POST \
  --url "https://app.fullenrich.com/api/v2/contact/enrich/bulk" \
  --header "Authorization: Bearer $FULLENRICH_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "name": "Jane Doe",
    "webhook_url": "https://example.com/webhook",
    "data": [{
      "first_name": "Jane",
      "last_name": "Doe",
      "domain": "acme.com",
      "enrich_fields": ["contact.work_emails", "contact.phones"]
    }]
  }'

The job is asynchronous. You get the result on your webhook, or you poll the bulk endpoint with the enrichment id (FullEnrich docs, September 2026). That suits batch pipelines. It is awkward for a lookup inside a user-facing request.

Rate limits differ in shape. FullEnrich allows 60 calls a minute across Enrich, Reverse Email and Search, with 100 contacts per bulk call, so 6,000 contacts a minute (FullEnrich docs, September 2026). Hunter limits per endpoint. Email Finder and Domain Search allow 15 a second and 500 a minute. Verifier allows 10 a second and 300 a minute, and Discover 5 a second and 50 a minute. A call over the rate limit gets a 403, and a call over your credit quota gets a 429 (Hunter API docs, September 2026).

On MCP, both servers are on every plan. FullEnrich's covers search, enrichment and export. Search is a free preview of the first 10 results plus the total, and an export costs 0.25 credits per contact (FullEnrich help, September 2026). Hunter's spends your plan credits and saves leads to Hunter Leads (Hunter MCP, September 2026).

Pricing

Both tools sell credits and both charge only for a hit. FullEnrich credits roll over for 3 months on monthly plans and 12 on annual ones (FullEnrich pricing, September 2026). Hunter credits reset each month on monthly plans. Yearly and Data Platform credits last 12 months (Hunter help center, September 2026).

The worked example is work-email lookups only, one credit each, at list price.

At 10,000 a month Hunter costs about 30% of FullEnrich on monthly billing, $149 against $499. FullEnrich's price per credit is $0.050 at that tier (FullEnrich pricing, September 2026). Hunter's is $0.0149 (Hunter pricing, September 2026).

Add mobiles and the picture shifts. A mobile costs FullEnrich users 10 credits, so 10,000 mobiles is 100,000 credits, a $3,500 tier on monthly billing. Hunter publishes no per-mobile price, so there is nothing to put beside it.

At 1M, Hunter publishes a number: 1,000,000 Search credits at $0.0069 each is $6,900, paid once. The all-in-one route costs more. Scale at $299 a month plus 975,000 pack credits at up to $0.02 each is about $19,799 by our arithmetic. Packs also cap at 180,000 per purchase (Hunter help center, September 2026). Data Platform is the cheaper path.

FullEnrich publishes no 1M price. The top monthly tier is 100,000 credits for $3,500, which covers 10% of the volume, and above that the page says contact sales. The yearly toggle stops at 1,200,000 credits a year for $37,800 (FullEnrich pricing, September 2026). FullEnrich does not say whether yearly credits arrive upfront or monthly, so that tier is not a confirmed path to 1M lookups in one month. A million lookups in one month needs a quote.

Plan against hit rate. Both charge only for found data, so real cost per contact sits below list rate. Neither publishes a hit rate you can plan on, apart from FullEnrich's own 80% claim.

Verification is a second line item to watch. Hunter's Email Finder already verifies what it finds. Separate verification credits, for lists you bring yourself, start at $11 per 1,000 on Data Platform (Hunter Data Platform, September 2026). On the all-in-one plans one verification costs 0.5 credit (Hunter help center, September 2026). FullEnrich includes its triple verification in the credit you already pay for a found email.

Where FullEnrich wins

• Mobile coverage. A waterfall over 25+ sources finds numbers that one database misses.
• Pay for hits only on every data type. A miss or a landline costs nothing, and credits roll over.
• Unlimited users on every plan, with API, MCP and bulk CSV from the free trial up.
• A published search index: 800M people and 50M companies. Hunter publishes no database size.
• Profile data. Pass a LinkedIn URL and you also get a full person and company profile.

Where Hunter.io wins

• Price per email. $0.0149 a credit at 10,000 a month and $0.0069 at 1M, against FullEnrich's $0.050 at 10,000.
• A published 1M price, so a finance team can approve it without a sales call.
• A synchronous call, and looser limits per second. FullEnrich caps at 60 calls a minute.
• Sequences, a browser extension and a Sheets add-on, so you can find and send in one product.
• A recurring free plan: 50 credits every month, where FullEnrich's trial is 50 credits once.

If you need volume through an API

LeadOcean is the data layer only: 693M people and 63M companies over REST and MCP. Pro is $499 a month flat with no credits and no per-record price, and Free gives you 1,000 records, one-off, with no card. The limit is 100 requests per second per key, and POST /v1/exports returns up to 50,000 rows per request. LeadOcean has no sequencer, extension or waterfall, so it replaces neither tool for hand-finding emails or hunting mobiles. See pricing.

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