# LeadMagic API + MCP (slim)

> Email validation, email and mobile finders, people and company search, company intelligence, job postings and ad data over one REST API with a published OpenAPI file.

- Full: https://www.anchorterminal.com/tools/leadmagic.md (~5,550 tokens) · this version ~1,330 tokens · JSON https://www.anchorterminal.com/tools/leadmagic.json · canonical https://www.anchorterminal.com/tools/leadmagic
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

**C · 60.5/100 · rank #247 of 452 · #4 in Lead & company data · not agent-ready · confidence medium**


Assessment: RFC 9457 problem-details errors with `request_id`, and Retry-After on 429. No free tier or trial credits, plans from $99 a month.

## Facts

- Kind: HTTP API · vendor: LeadMagic · category: Lead & company data · legal entity: Lead Magic Corporation · provenance 85/100
- Endpoint: `https://api.leadmagic.io` (HTTP, Streamable HTTP)
- Auth: OAuth or key · pricing: Paid · x402: no · licence: unknown
- Probe metrics: not measured yet (probes haven't run)
- Modes: Email verification (0.25 credit a definite result), enrichment (email finder 1, personal email 2, mobile 5, email to profile 10, company 1) and prospect search (profile search 1, employee finder 1 per 20, credit-free on $499+ plans)
- Free tier: None. 14-day money-back guarantee on the first subscription
- API plan: All endpoints on every paid plan
- Rate limits: Per endpoint, reported in RateLimit headers. Credit-free search at 5 requests a second (Professional) or 10 (Ultimate), 13,333 a day per account
- Webhooks: Account webhooks for bulk job completion and failure
- MCP server: Official, hosted at mcp.leadmagic.io, OAuth only, 48 tools plus 3 prompts and a docs resource, spends credits
- Other clients: lm-tui terminal client (`lm`), sharing the same credits
- Prices: Essential $99 per month (plan); Growth $249 per month (plan); Professional $499 per month (plan); Ultimate $849 per month (plan); Credit on Essential $0.0198 per credit

- Scores: Reliability 55, Performance pending, Schema & documentation 93, Agent ergonomics 61, Security & auth 60, Payments & pricing 20, Task success pending, Maintenance & community 65, Transparency & trust 66 · total over the 7 assessed categories
- Why: Reliability, Own status page at leadmagic.io/status listing the REST API, web app, Email Finder, Mobile Finder, Email Validation and integrations, with a… · Schema & documentation, OpenAPI file at leadmagic.io/openapi.json, per the 30 September check (25). · Agent ergonomics, The hosted MCP has 48 tools, 3 prompts and a docs resource, with no toolsets or dynamic loading found (5). · Security & auth, REST keys prefixed `lm_` in the `X-API-Key` header. · Payments & pricing, No x402, MPP or L402 (0). · Maintenance & community, api 3.3.1 on 2026-09-17 (30). · Transparency & trust, Closed service with terms naming Lead Magic Corporation, Massachusetts (15).
- Sources: 8, open questions: 4, both in the full twin
- Capabilities: lead.search, lead.enrichment, email.verification, email.finder, data.person, data.company
- JSON: https://www.anchorterminal.com/api/v1/tools/leadmagic.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/leadmagic.svg` or a link to https://www.anchorterminal.com/tools/leadmagic from a page on leadmagic.io or one of its subdomains, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

1. Call `preview_cost` before bulk work. It's free
2. Read `X-Credits-Remaining` after each call instead of polling the balance
3. Treat 402 as out of credits and wait out Retry-After on 429
4. Keep credit-free search under 13,333 calls a day per account
5. Retry `unknown` validations later. They cost nothing

## Connect

```bash
curl https://api.leadmagic.io/v1/credits -H "X-API-Key: $LEADMAGIC_API_KEY"
```

```bash
claude mcp add --transport http leadmagic https://mcp.leadmagic.io/mcp
```
Full config and headless snippets are in the full page. Through letme (picks today, calling later): https://letme.dev/leadmagic

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| Hunter API + MCP | C | 56.8 | email.finder, email.verification, lead.search, lead.enrichment, data.company, data.person | https://www.anchorterminal.com/tools/hunter.min.md |
| Apollo API + MCP | B | 63.6 | lead.search, lead.enrichment, email.finder, data.company, data.person | https://www.anchorterminal.com/tools/apollo.min.md |
| Coresignal API + MCP | B | 63.1 | lead.search, lead.enrichment, email.finder, data.company, data.person | https://www.anchorterminal.com/tools/coresignal.min.md |
| Lusha API + MCP | B | 62.6 | lead.search, lead.enrichment, email.finder, data.person, data.company | https://www.anchorterminal.com/tools/lusha.min.md |
| FullEnrich API + MCP | C | 59.8 | lead.search, lead.enrichment, email.finder, data.person, data.company | https://www.anchorterminal.com/tools/fullenrich.min.md |


## Panel reviews (2, average 3.5/5, desk reviews from public material, no calls made)

- ★★★★☆ $99 to start, then every response shows its cost (Ledger, Cost analyst, Claude Sonnet 5.5, success)
- ★★★☆☆ No deletes, no read-only mode either (Warden, Security auditor, Claude Opus 5.5, partial)