Best enrichment APIs for Clay

TL;DR

The best enrichment API provider for Clay depends on what you're enriching and how many rows you run. Quick version:

• If you want enrichment in a Clay waterfall without per-credit cost stacking, use MoltSets. Flat plans from $27/mo, added as an HTTP API step (Clay Growth plan or above).

• If you want low-cost verified work emails, use Enrow or Icypeas. Entry plans are $17/mo and $19/mo for 1,000 credits.

• If you want email and mobile enrichment from LinkedIn URLs, use Prospeo. Starter is $37/mo per user billed annually, with 2,000 credits a month.

• If you want a bounce-rate guarantee, use Findymail. Plans start at $99/mo.

• If you want a dedicated mobile provider, use LeadMagic. Essential is $99/mo with 5,000 credits.

• If you want European mobile coverage, use Datagma. Regular is $39/mo billed annually.

• If you want one step that runs 20+ sources for you, use BetterContact. Starter is $15/mo for 200 credits.

• If you already pay for a big sales database, use Apollo. Basic is $49 per seat per month billed annually.

• If you want company firmographics at scale, use People Data Labs. Company enrichment starts at $100/mo for 1,000 credits.

The waterfall rule: per-credit providers charge on every successful result, so their cost grows with the table. A flat-rate provider adds no per-lookup charge for core enrichment within its plan limits. Put it first and let the per-credit providers handle the misses.

Why the provider you add to Clay matters

The provider you plug in decides your coverage and your Clay bill.

Clay charges you two ways.

1. When you buy data through Clay's own account with a vendor, you pay Data Credits. That covers emails, phone numbers, and company data.

2. Each enrichment that returns a result also costs one Action, Clay's charge for running the step, whether the data came from Clay's marketplace or your own API key. Enrichments that come back empty cost nothing.

If you connect your own account with a provider instead, Clay stops charging Data Credits for that step. You pay the provider's own price, plus the one Action. So the cost you feel is whatever that provider charges at your volume.

Waterfalls make this matter more. Clay runs providers in order and stops at the first one that returns the data, so you pay only the provider that found it. A per-credit provider charges every time it wins a row. A flat-rate provider like MoltSets charges a monthly subscription instead, within its rate limits and fair-use policy, so it costs the same whether it wins 500 rows or 50,000.

Integration matters too. Native providers sit in Clay's provider list. A provider without a native integration connects through an HTTP API step, which Clay includes on its Growth plan, from $446/mo.

What we compared

The providers below are grouped by the job they do best, not ranked against each other. For each one we looked at three things.

Pricing model in a waterfall. Flat subscription, per credit, per result, or per seat, and what happens to the cost as row count grows.

How it connects to Clay. Native provider on your own key, or an HTTP API step.

Data types. Work email, mobile, personal email, company data, or a mix.

Best enrichment APIs for Clay compared

What's the best enrichment API for a Clay waterfall that won't stack per-result costs?

MoltSets.

MoltSets is a B2B enrichment API that returns verified business and personal emails with risk scores, carrier-verified mobile numbers, and people and company data. It has no dashboard. You call it from Clay, Claude Code, Codex, n8n, or your own code through its API or MCP server. Paid plans use flat subscription pricing within defined rate limits instead of a credit per lookup.

Best for. Teams enriching enough rows a month that per-result pricing has become a real line in the budget.

Pricing. Start with 1,000 enrichments for free. Paid plans start at $27/mo, then $97/mo, $397/mo, and $997/mo. Every paid plan includes unlimited core enrichment records, subject to fair-use and rate limits. The $27 tier allows 5,000 enrichment requests every five hours. Mobile numbers use phone tokens, a separate paid add-on starting at $27/mo for 180 tokens (MoltSets pricing).

Pricing in a waterfall. MoltSets adds no per-result charge for core enrichment within plan limits. Put it above the per-credit providers and let them run only on the rows MoltSets doesn't resolve.

Limitations. MoltSets is not a native Clay source. It connects through an HTTP API step, which needs a Clay plan with HTTP API access: Clay lists that under Growth (from $446/mo), not Launch. Rate limits, rather than credits, cap throughput, so a very large table won't finish in one pass on the $27 tier.

Verdict. Use MoltSets if you run enough rows that per-result pricing hurts and you have Clay HTTP API access. If you enrich a few hundred rows a month, a small credit-based plan costs less.

What's the cheapest enrichment API for verified emails in Clay?

Enrow or Icypeas.

Both sell verified work emails on low-cost entry plans with API access included.

Best for. The first paid rung of an email waterfall, after Clay's free infer-email step.

Pricing. Enrow starts at $17/mo for 1,000 credits, and the entry plan includes Email Finder, Phone Finder, Email Verifier, catch-all verification, API access, and no-code integrations. Icypeas starts at $19/mo for 1,000 credits and includes found emails, catch-all verification, API access, and credit rollover.

Pricing in a waterfall. Both are per credit, but at under 2 cents a credit the stacking barely shows until you're into tens of thousands of rows.

Limitations. Email is their strength. If mobiles matter to you, price a dedicated mobile provider alongside them.

Verdict. Use Enrow or Icypeas when the job is cheap verified emails and your volume doesn't justify a flat-rate API.

Which data provider works best for LinkedIn-sourced enrichment in Clay?

Prospeo.

Prospeo enriches email and mobile from professional-profile inputs such as LinkedIn and Sales Navigator URLs.

Best for. Lists built from LinkedIn where you want email and mobile from the same provider.

Pricing. Starter is $37/mo per user billed annually with 24,000 credits per user per year, which works out to 2,000 a month. Growth is $74/mo per user annually with 60,000 credits a year, Pro is $187/mo per user annually with 180,000. The free plan includes 100 credits a month.

Pricing in a waterfall. Per credit, so successful enrichments drive the bill.

Limitations. Plans are priced per user, so each seat you add raises the subscription, and credits still scale with volume.

Verdict. Use Prospeo when LinkedIn-sourced lists are the core of your workflow and you want one provider for email and mobile.

What's the best enrichment API in Clay for deliverability?

Findymail.

Findymail finds and verifies emails and backs its results with a bounce-rate guarantee of under 5%.

Best for. Outbound teams whose sending-domain reputation is worth more than the per-email saving.

Pricing. Plans start at $99/mo for the Individual plan, then $399/mo for Team and $999/mo for Scale. Findymail describes usage as "generous" rather than publishing a credit count per plan, and says you pay only for verified results.

Pricing in a waterfall. Usage-based, so send it the rows where verification earns its cost.

Limitations. The lowest paid plan is $99/mo, and with no published credit counts it's hard to work out your cost per email before you buy.

Verdict. Use Findymail when verification and bounce protection matter more than the lowest entry price.

What's the best enrichment API for mobile numbers in Clay?

LeadMagic.

LeadMagic offers email, mobile, company, and other enrichment endpoints from one shared credit pool.

Best for. Teams that call, where mobile coverage decides whether a list is useful.

Pricing. Essential is $99/mo for 5,000 monthly credits, or $990 a year (about $83/mo). Growth is $249/mo for 20,000 credits, Professional $499/mo for 50,000, Ultimate $849/mo for 100,000. API and Clay integration are included on the paid plans (LeadMagic pricing).

Pricing in a waterfall. Per credit, so run it where mobile data is worth the step.

Limitations. The lowest paid plan is $99/mo.

Verdict. Use LeadMagic when mobiles matter enough to justify a dedicated provider.

Which enrichment provider works best in Clay for EU contacts?

Datagma.

Datagma leans on mobile enrichment and works from inputs such as Sales Navigator profiles or a name plus company.

Best for. Teams prospecting in Europe who need phones as well as emails.

Pricing. The Regular plan is $39/mo billed annually with 1,200 phones and 36,000 emails a year. The free plan includes three phones and 90 emails a month. Datagma says unused credits roll over for 12 months and it charges only when a result is found (Datagma pricing).

Pricing in a waterfall. A native Clay provider that supports your own API key, charged on successful matches.

Limitations. Phone and email allowances are separate quotas, so you can't trade unused emails for more phones.

Verdict. Use Datagma when European mobile coverage is the priority.

What's the simplest enrichment step to add to Clay?

BetterContact.

BetterContact puts a waterfall of 20+ sources behind a single enrichment step, so you don't configure or maintain each provider yourself.

Best for. Teams who want multi-provider coverage without running the provider stack.

Pricing. Starter is $15/mo for 200 credits, Pro is $49/mo for 1,000. One valid email costs one credit and one mobile costs 10. BetterContact says it charges only when valid data is found.

Pricing in a waterfall. You're buying BetterContact's waterfall rather than holding subscriptions and keys with each source yourself.

Limitations. Less control over the ordering and economics of each underlying source than a waterfall you built.

Verdict. Use BetterContact if convenience beats tuning every provider. Build your own waterfall if you run more than a few thousand rows.

Is Apollo a good enrichment provider for Clay?

Yes, if you already use Apollo.

Apollo bundles a large contact database with prospecting, enrichment, sequencing, and sales workflow tools, so the subscription covers far more than an enrichment API.

Best for. Teams already paying for Apollo who want to reuse its data inside Clay.

Pricing. Basic is $49 per seat per month billed annually with 30,000 credits per seat per year. Professional is $79 per seat per month annually with 48,000 credits a year. Organization is $119 per seat per month annually with a three-seat minimum and 72,000 credits per seat per year.

Pricing in a waterfall. Apollo makes sense when the subscription already exists in your stack, not when you'd buy it to fill one enrichment step.

Limitations. Priced as a sales platform, not a standalone enrichment API.

Verdict. Use Apollo inside Clay if you already pay for it. Don't buy the whole platform for one provider slot.

What's the best company enrichment API for Clay?

People Data Labs.

People Data Labs sells separate person, company, and other data APIs. Company Enrichment and Company Search are the ones that matter when you need firmographics before deciding which accounts or contacts to pursue.

Best for. Account research and scoring, where you need company fields on every row before you pick who to contact.

Pricing. Company Enrichment and Company Search start at $100/mo for 1,000 credits, or $0.10 per successful match, falling to $0.075 and $0.065 per credit at higher self-serve volumes. Person Enrichment and Person Search start at $98/mo for 350 credits, or $0.28 per successful match (People Data Labs pricing).

Pricing in a waterfall. Company enrichment is cheap next to PDL's person enrichment, so use it for company-level fields.

Limitations. Person records cost several times what the email-only providers above charge per match.

Verdict. Use People Data Labs for company data. Use a specialist provider if all you need is a cheap work email.

How to stop wasting Clay credits

Clay Data Credits and provider credits are different things, and most wasted spend comes from mixing them up.

If you buy third-party data through Clay, Clay charges Data Credits. If you connect your own provider key where Clay supports it, you pay the provider directly and Clay charges only the Action for the step.

Use your own provider keys where the math works. Compare what the provider charges directly with what the same enrichment costs through Clay's marketplace.

Stop the waterfall once the data is found. Keep "stop if found" on so a resolved row never runs through the remaining providers.

Run expensive steps conditionally. Qualify the row first, then run email, mobile, or AI enrichments only on rows that pass.

Put the lowest-marginal-cost provider first. A flat-subscription provider at the top of the waterfall resolves rows before they reach the ones that charge per result.

How to add MoltSets to a Clay waterfall

MoltSets goes into Clay as an HTTP API step, because it is not a native Clay provider.

1. In your Clay table, add an enrichment and choose HTTP API.

2. Set the method to POST and the endpoint to https://api.moltsets.com/api/v1/tools/linkedin_to_best_email (MoltSets API docs).

3. Add a header: Authorization: Bearer followed by your MoltSets API key.

4. In the JSON body, set linkedin_url to your LinkedIn URL column (type "/" to pick it).

5. Under response values, select email, type, risk_score, and status. A miss comes back as not_found and isn't charged.

6. Test on a small set of rows before running the full table.

7. Add your next enrichment provider beneath MoltSets, set to run only when the MoltSets email cell is empty.

Once the steps exist, every new row moves through them in order: MoltSets first, then the per-credit provider only for unresolved rows. To reuse the setup in other tables, select the columns and save them as a Clay Function, which is available on all paid plans and updates everywhere it's used when you change it.

HTTP API steps need Clay's Growth plan, from $446/mo (Clay pricing).

Frequently asked questions