# MoltSets

> Go-to-market data platform built for AI agents. Valid business and personal emails, carrier-verified mobile phones, and SHA256 hashes for ad audiences, exposed as MCP- and REST-compatible APIs. API and MCP only, currently in closed beta.

MoltSets returns contact and company data an agent can act on directly. Differentiators that affect output quality:

- Every email is run through a validation waterfall and has a "risk score" attached
- Mobile numbers are carrier-validated in real time (mobiles only, no landlines).
- Multi-provider waterfalls maximise coverage on each call.
- One API covers business emails, personal emails, mobile phones, people and company search, reverse lookups, ad-audience identifiers (SHA256 and MAID), email-to-LinkedIn, and IP-to-company.

Base URL: `https://api.moltsets.com/api/v1/tools/`. Authentication: `Authorization: Bearer YOUR_API_KEY` on every request. All requests are `POST` with a JSON body. All responses return HTTP 200 with the envelope `{ "results": {...}, "status": "ok", "metadata": { "tokens_charged": N, "tokens_remaining": N } }`.

## Key Pages

- [Homepage](https://moltsets.com/): Product overview and closed-beta signup.
- [Pricing](https://moltsets.com/pricing/): Plans and rate limits.
- [How it works](https://moltsets.com/how-it-works/): Signup, API key, and connecting to Clay or Claude Code.
- [Our data](https://moltsets.com/our-data/): Data categories covered.
- [For agents](https://moltsets.com/for-agents/): Agentic purchasing via Stripe MPP and Coinbase x402, pay per record with no API key or subscription.
- [MoltSets APIs](https://moltsets.com/moltsets-apis/): Every MoltSets data API grouped by category, each linking to its developer reference.
- [Partnerships](https://moltsets.com/partnerships/): UGC discount, affiliate, and live-show partner programs.
- [Blog](https://moltsets.com/blog/): Guides, product updates, and go-to-market plays from the MoltSets team.
- [Terms of Service](https://moltsets.com/terms-of-service/)
- [Privacy Policy](https://moltsets.com/privacy-policy/)
- [Data Protection Addendum](https://moltsets.com/data-protection-addendum/)
- [Compliance](https://moltsets.com/compliance/)
- [Sub-processors List](https://moltsets.com/sub-processors-list/)
- [Frequently Asked Questions](https://moltsets.com/faq/)

## Resources

- [App](https://app.moltsets.com): Sign up, manage keys and billing.
- [Skills Library](https://moltsets.com/library/): Pre-built Claude Skills for identity resolution, contact enrichment, prospecting, IP intelligence, and more.
- [Skills Library index](https://moltsets.com/library/llms.txt): Full list of all skills with descriptions, categories, difficulty, and connections.
- [Help Desk](https://support.moltsets.com): Using the app, billing, and account management.
- [Developer Docs](https://developer.moltsets.com): API reference and MCP connection guides.

## Blog

- [Clay Alternatives: 7+ Tools to Replace Clay in 2026](https://moltsets.com/blog/best-clay-alternatives/): Clay's price increases have pushed GTM teams to look elsewhere. Compare 8 Clay alternatives on pricing, API access, and fit for AI agent workflows.

## Developer Documentation

- [Overview](https://developer.moltsets.com/getting-started/overview): What MoltSets is, base URL, request/response structure, plans, and available tools.
- [Authentication](https://developer.moltsets.com/getting-started/authentication): API key format (`ms_XXXXXXXXXXX`), creating and revoking keys, Bearer usage, error responses.
- [Rate Limits](https://developer.moltsets.com/getting-started/rate-limits): Per-plan limits, what counts as a request, 429 handling, exponential backoff, multi-key strategies.
- [MoltSets App](https://developer.moltsets.com/getting-started/moltsets-app): Logging in and navigating the app.
- [I Have X, I Want Y](https://developer.moltsets.com/use-cases/i-have-x-i-want-y): Tool selection by what data you have (email, HEM, LinkedIn, IP) and what you need. Covers email and people finding, identity resolution, company lookup, IP resolution, search, and chained workflows.
- [Find Companies and Contacts](https://developer.moltsets.com/use-cases/find-companies-and-contacts): Build prospect lists, look up companies by domain, and find contacts matching an ICP via the MCP or API. Covers filters, pagination, and code examples.
- [MoltSets MCP Server](https://developer.moltsets.com/integrations/moltsets-mcp): MCP server URL (`https://mcp.moltsets.com/mcp`), setup for Claude.ai, Claude Desktop, and Claude Code, example prompts, troubleshooting.
- [Clay HTTP API](https://developer.moltsets.com/integrations/clay): Use MoltSets tools in Clay via the HTTP API enrichment.

## API Reference

### Search

- [POST /search_people](https://developer.moltsets.com/api-reference/search/search-for-people): Search people by company, industry, size, or revenue. Returns ranked business profiles.
- [POST /search_companies](https://developer.moltsets.com/api-reference/search/search-for-companies): Search companies by name, domain, industry, size, or revenue. Returns ranked company profiles.
- [POST /search_linkedin_profile](https://developer.moltsets.com/api-reference/search/search-for-linkedin-profile): Search a person or company by name and company domain. Returns a LinkedIn slug. Use `count_only: true` (free) to check result volume before spending tokens.
- [POST /search_business_email_by_name](https://developer.moltsets.com/api-reference/search/search-business-email-by-name): Name and company domain to valid business email plus matched LinkedIn URL. One-call shortcut for `search_linkedin_profile` plus `linkedin_to_business_email`. Charged only when found.
- [POST /search_business_profile_by_name](https://developer.moltsets.com/api-reference/search/search-business-profile-by-name): [Advanced] Name and company domain to full business profile (company, title, firmographics).

### Get Valid Emails

- [POST /linkedin_to_best_email](https://developer.moltsets.com/api-reference/get-valid-emails/linkedin-to-best-email): LinkedIn URL to best available email (business preferred, falls back to personal). Returns a `type` field (`business` or `personal`).
- [POST /linkedin_to_business_email](https://developer.moltsets.com/api-reference/get-valid-emails/linkedin-to-business-email): LinkedIn URL to valid business email only.
- [POST /linkedin_to_personal_email](https://developer.moltsets.com/api-reference/get-valid-emails/linkedin-to-personal-email): LinkedIn URL to valid personal email.
- [POST /linkedin_to_best_personal_email](https://developer.moltsets.com/api-reference/get-valid-emails/linkedin-to-best-personal-email): LinkedIn URL to best personal email.

### Get Carrier-Verified Mobile Phones

- [POST /linkedin_to_mobile_phone](https://developer.moltsets.com/api-reference/get-carrier-verified-mobile-phones/linkedin-to-mobile-phone): LinkedIn URL to verified mobile phone (mobiles only, no landlines). Pass `linkedin_url` (single) or `linkedin_urls` (batch, up to 100).

### Reverse Lookups

- [POST /reverse_email_lookup](https://developer.moltsets.com/api-reference/reverse-lookups/reverse-email-lookup): Email to full business profile (name, title, seniority, company, LinkedIn, firmographics, emails on file).
- [POST /reverse_linkedin_lookup](https://developer.moltsets.com/api-reference/reverse-lookups/reverse-linkedin-lookup): LinkedIn URL to complete business profile (name, title, seniority, company, industry, revenue, business and personal email). Most complete LinkedIn enrichment.

### Get Ad Audience

- [POST /email_to_maid](https://developer.moltsets.com/api-reference/get-ad-audience/email-to-maid): Email to mobile advertising IDs (MAIDs: AAIDs and IDFAs) for cross-device retargeting.
- [POST /business_email_to_sha256](https://developer.moltsets.com/api-reference/get-ad-audience/business-email-to-sha256): Business email to SHA256 personal hashed emails for audience matching.
- [POST /linkedin_to_sha256](https://developer.moltsets.com/api-reference/get-ad-audience/linkedin-to-sha256): LinkedIn URL to all known SHA256 hashes (business and personal).

### Get LinkedIn

- [POST /email_to_linkedin](https://developer.moltsets.com/api-reference/get-linkedin/email-to-linkedin): Email to highest-confidence LinkedIn profile URL (scores all candidates, returns the best full URL).

### Get Company

- [POST /ip_to_company](https://developer.moltsets.com/api-reference/get-company/ip-to-company): IPv4 address to company domain(s) behind the traffic. B2B web-visitor de-anonymisation.

### Account

- [POST /get_account](https://developer.moltsets.com/api-reference/account/get-account): Account details and credit balance. Free.
- [POST /get_billing](https://developer.moltsets.com/api-reference/account/get-billing): Billing plan, renewal date, and per-tool credit costs. Free.
- [POST /get_usage](https://developer.moltsets.com/api-reference/account/get-usage): Credit usage for a time period. Free.

## Plans

| **Plan** | **Lifetime Tokens** | **Rate Limit** | **External Tokens** |
| :-- | :-- | :-- | :-- |
| $0 | 1000 | 1,000 records / 1,000 requests per 5 hours; 1,000 records lifetime | 100 |
| $27 / month | Unlimited | 1,000 records / 5,000 requests per 5 hours; 5,000 records per week | 100 / month |
| $97 / month | Unlimited | 15,000 records / 75,000 requests per 5 hours; 75,000 records per week | 500 / month |
| $497 / month (reg. $997) | Unlimited | 180,000 records / 900,000 requests per 5 hours; 900,000 records per week | 2500 / month |

[Getting the $997/month plan for $497/month with the UGC discount](https://support.moltsets.com/en/articles/15207288).

## MCP Server

MCP Server URL: `https://mcp.moltsets.com/mcp`

Connect via Claude Code:

```bash
claude mcp add --transport http moltsets https://mcp.moltsets.com/mcp \
  --client-id YOUR_CLIENT_ID \
  --client-secret YOUR_CLIENT_SECRET
```

Credentials (Client ID and Client Secret) are created at https://app.moltsets.com/dashboard/api_keys.