# Lead, contact and company data APIs for AI agents

> 10 lead & company data ranked by the Anchor benchmark. Leader Apollo API + MCP (B). APIs that find prospects, enrich people and companies, and find or verify email addresses. Search, enrichment and email verification are different jobs, so each listing says which it does and the Mode filter separates them.

- Canonical: https://www.anchorterminal.com/categories/lead-data
- Markdown: https://www.anchorterminal.com/categories/lead-data.md (~3,350 tokens)
- Slim: https://www.anchorterminal.com/categories/lead-data.min.md (~530 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/categories/lead-data.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

APIs that find prospects, enrich people and companies, and find or verify email addresses. Search, enrichment and email verification are different jobs, so each listing says which it does and the Mode filter separates them.

- Tools ranked: 10 · agent-ready (BB or better): 0 · accept x402: 0 · hosted endpoints: 10 · desk reviews by the panel: 20
- JSON: https://www.anchorterminal.com/api/v1/tools.json (list) · https://www.anchorterminal.com/api/v1/rankings.json (ranked) · https://www.anchorterminal.com/api/v1/x402.json (payable) · https://www.anchorterminal.com/api/v1/capabilities.json (by capability)
- Grades run AA, A, BB, B, C, D, E, F · methodology: https://www.anchorterminal.com/benchmark/

- Capabilities in this category: lead.search, lead.enrichment, email.verification, email.finder, data.company
- https://letme.dev/lead.search picks the top-graded tool in this list and says how to call it direct; calling through letme comes later (https://www.anchorterminal.com/letme/index.md)

## Ranking

| # | Tool | Vendor | Kind | Category | Grade | Score | Confidence | x402 | Auth | Where | Reviews | Page |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 199 | Apollo API + MCP | Apollo.io | HTTP API | Leads | B | 63.6 | medium | no | OAuth or key | hosted | 2.5/5 (2) | https://www.anchorterminal.com/tools/apollo.md |
| 208 | Coresignal API + MCP | Coresignal | HTTP API | Leads | B | 63.1 | medium | no | OAuth or key | hosted | 3.5/5 (2) | https://www.anchorterminal.com/tools/coresignal.md |
| 215 | Lusha API + MCP | Lusha | HTTP API | Leads | B | 62.6 | medium | no | OAuth or key | hosted | 3/5 (2) | https://www.anchorterminal.com/tools/lusha.md |
| 247 | LeadMagic API + MCP | LeadMagic | HTTP API | Leads | C | 60.5 | medium | no | OAuth or key | hosted | 3.5/5 (2) | https://www.anchorterminal.com/tools/leadmagic.md |
| 258 | FullEnrich API + MCP | FullEnrich | HTTP API | Leads | C | 59.8 | medium | no | OAuth or key | hosted | 3.5/5 (2) | https://www.anchorterminal.com/tools/fullenrich.md |
| 299 | Hunter API + MCP | Hunter | HTTP API | Leads | C | 56.8 | medium | no | OAuth or key | hosted | 3/5 (2) | https://www.anchorterminal.com/tools/hunter.md |
| 309 | Enrich Layer API + MCP | Enrich Layer | HTTP API | Leads | C | 56 | medium | no | API key | hosted + local | 3/5 (2) | https://www.anchorterminal.com/tools/enrich-layer.md |
| 331 | Crustdata API + MCP | Crustdata | HTTP API | Leads | D | 53.5 | medium | no | OAuth or key | hosted | 2.5/5 (2) | https://www.anchorterminal.com/tools/crustdata.md |
| 355 | Dropcontact API + MCP | Dropcontact | HTTP API | Leads | D | 51.1 | medium | no | OAuth or key | hosted | 3.5/5 (2) | https://www.anchorterminal.com/tools/dropcontact.md |
| 356 | Prospeo API + MCP | Prospeo | HTTP API | Leads | D | 51.1 | low | no | OAuth or key | hosted + local | 3.5/5 (2) | https://www.anchorterminal.com/tools/prospeo.md |

Scores are from public evidence against the published checklist (https://www.anchorterminal.com/benchmark/), with Performance and Task success pending. p95 latency and context cost come from our probes, which haven't run yet.

## Summaries

### 199. Apollo API + MCP, B (63.6)

People and company search over Apollo's database of about 240 million contacts and 30 million companies, person and company enrichment with email and mobile reveal, and the Apollo CRM and sequence objects. People search costs 0 credits, up to 100 records a page and 50,000 a query. Headless MCP use needs a master key that reaches every endpoint.

- Page: https://www.anchorterminal.com/tools/apollo · Markdown: https://www.anchorterminal.com/tools/apollo.md · JSON: https://www.anchorterminal.com/api/v1/tools/apollo.json
- Capabilities: lead.search, lead.enrichment, email.finder, data.company, data.person · endpoint: `https://api.apollo.io/api/v1`

### 208. Coresignal API + MCP, B (63.1)

Company, employee and job posting data collected from the public web, queried with filters or Elasticsearch DSL and pulled by ID, with a real-time employee lookup, profile-change webhooks and a natural-language Agentic Search API. Search is free, and credits are only taken on collect or enrich calls that return 200. Real-Time API requests timing out for about six days up to 1 October, per the status page.

- Page: https://www.anchorterminal.com/tools/coresignal · Markdown: https://www.anchorterminal.com/tools/coresignal.md · JSON: https://www.anchorterminal.com/api/v1/tools/coresignal.json
- Capabilities: lead.search, lead.enrichment, email.finder, data.company, data.person · endpoint: `https://api.coresignal.com/cdapi`

### 215. Lusha API + MCP, B (62.6)

Contact and company enrichment, filter-based prospecting, lookalikes, job-change and company signals, and webhooks over a versioned REST API with OpenAPI files. API key on every plan, including Free with 40 credits a month. At least 1 credit per request even when nothing matches.

- Page: https://www.anchorterminal.com/tools/lusha · Markdown: https://www.anchorterminal.com/tools/lusha.md · JSON: https://www.anchorterminal.com/api/v1/tools/lusha.json
- Capabilities: lead.search, lead.enrichment, email.finder, data.person, data.company · endpoint: `https://api.lusha.com`

### 247. LeadMagic API + MCP, C (60.5)

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

- Page: https://www.anchorterminal.com/tools/leadmagic · Markdown: https://www.anchorterminal.com/tools/leadmagic.md · JSON: https://www.anchorterminal.com/api/v1/tools/leadmagic.json
- Capabilities: lead.search, lead.enrichment, email.verification, email.finder, data.person, data.company · endpoint: `https://api.leadmagic.io`

### 258. FullEnrich API + MCP, C (59.8)

Waterfall contact enrichment that queries 20+ data providers for work emails, personal emails and mobile numbers, plus people and company search and reverse email lookup. Credits only spent on found data, and identical re-runs within 3 months are free. Enrichment sources are third-party providers the vendor doesn't name.

- Page: https://www.anchorterminal.com/tools/fullenrich · Markdown: https://www.anchorterminal.com/tools/fullenrich.md · JSON: https://www.anchorterminal.com/api/v1/tools/fullenrich.json
- Capabilities: lead.search, lead.enrichment, email.finder, data.person, data.company · endpoint: `https://app.fullenrich.com/api/v2`

### 299. Hunter API + MCP, C (56.8)

Email finder, email verifier, domain search, company discovery and person and company enrichment over a REST API, plus a hosted MCP server that also drives Hunter's leads, lists and cold-email sequences. Returns 451 for people who asked not to be processed. Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode.

- Page: https://www.anchorterminal.com/tools/hunter · Markdown: https://www.anchorterminal.com/tools/hunter.md · JSON: https://www.anchorterminal.com/api/v1/tools/hunter.json
- Capabilities: email.finder, email.verification, lead.search, lead.enrichment, data.company, data.person · endpoint: `https://api.hunter.io/v2`

### 309. Enrich Layer API + MCP, C (56)

Professional profile, company, job, school and contact lookups with person and company search, built on the old Proxycurl endpoint set after Proxycurl shut down in July 2025. Pay-as-you-go credits from $10, non-expiring unless idle for 18 months. Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses.

- Page: https://www.anchorterminal.com/tools/enrich-layer · Markdown: https://www.anchorterminal.com/tools/enrich-layer.md · JSON: https://www.anchorterminal.com/api/v1/tools/enrich-layer.json
- Capabilities: lead.search, lead.enrichment, email.finder, data.person, data.company · endpoint: `https://enrichlayer.com/api/v2`

### 331. Crustdata API + MCP, D (53.5)

Company, person, job, web and social post search and enrichment, with live web lookups, batch jobs and watchers that push changes to a webhook. Per-field credit prices, readable per account from `/account/endpoints`, and `X-Credits-Used` on every response. No status page and no SLA.

- Page: https://www.anchorterminal.com/tools/crustdata · Markdown: https://www.anchorterminal.com/tools/crustdata.md · JSON: https://www.anchorterminal.com/api/v1/tools/crustdata.json
- Capabilities: lead.search, lead.enrichment, data.company, data.person · endpoint: `https://api.crustdata.com`

### 355. Dropcontact API + MCP, D (51.1)

Batch contact enrichment from a name and company. Pay on success, with credits refunded when no email is found. No OpenAPI spec, llms.txt or changelog.

- Page: https://www.anchorterminal.com/tools/dropcontact · Markdown: https://www.anchorterminal.com/tools/dropcontact.md · JSON: https://www.anchorterminal.com/api/v1/tools/dropcontact.json
- Capabilities: lead.enrichment, email.finder, email.verification, data.company · endpoint: `https://api.dropcontact.com/v1`

### 356. Prospeo API + MCP, D (51.1)

Person and company search over a B2B database of 200M+ contacts, and enrichment that returns verified emails and mobiles for people and 50+ data points for companies. MCP tool descriptions say when to use each tool, its credit cost and the next call. No status page, SLA or changelog.

- Page: https://www.anchorterminal.com/tools/prospeo · Markdown: https://www.anchorterminal.com/tools/prospeo.md · JSON: https://www.anchorterminal.com/api/v1/tools/prospeo.json
- Capabilities: lead.search, lead.enrichment, email.finder, data.person, data.company · endpoint: `https://api.prospeo.io`

## How we test this category

The same 50 company domains and 50 named prospects through every provider. We measure match rate, field completeness, email validity, stale records, latency and cost per usable record, and score search, enrichment and email verification separately. This test hasn't run yet, so Task success is pending and the grades here come from the categories assessed from public evidence.

## Indexed, not reviewed (11)

Sorted into this category from public catalogues, with facts and our own checks but no score, grade or rank (https://www.anchorterminal.com/indexed/index.md).

| Listing | Kind | What it does | Why it's here |
| --- | --- | --- | --- |
| [Argorant](https://www.anchorterminal.com/tools/argorant.md) | MCP server | Verified B2B contact data: size a market free, reveal or export when the segment is right. | vendor's own |
| [Ask Xverum](https://www.anchorterminal.com/tools/xverum-mcp.md) | MCP server | Find and enrich people from 750M professional profiles, with Next Move Signal job-change scores. | vendor's own |
| [Asyntai](https://www.anchorterminal.com/tools/asyntai-support-agent.md) | MCP server | Run your website's AI support agent: knowledge, conversations, leads and live replies. | vendor's own |
| [Brandfetch](https://www.anchorterminal.com/tools/brandfetch.md) | MCP server | Search brands and retrieve design assets, company data, other brand context from Brandfetch's API | vendor's own |
| [eng-leadership-toolkit](https://www.anchorterminal.com/tools/marian-eng-leadership-toolkit.md) | MCP server | Engineering leadership benchmarks, 1:1 playbooks, developer value calculator. 3,400+ sessions. | vendor's own |
| [IntentWake Audience Intelligence](https://www.anchorterminal.com/tools/intentwake.md) | MCP server | Enrich first-party lists with live intent, activity, and inbox signals for marketing and outreach. | vendor's own |
| [leads](https://www.anchorterminal.com/tools/spideriq-leads.md) | MCP server | SpiderIQ Leads: lead-gen MCP (jobs, campaigns, IDAP, Maps, People, Verify, company intel, spiderPR) | vendor's own |
| [mcp-explorium](https://www.anchorterminal.com/tools/mcp-explorium.md) | MCP server | Access live company and contact data from Explorium's AgentSource B2B platform. | vendor's own |
| [mlab.sh](https://www.anchorterminal.com/tools/mlab-mcp.md) | MCP server | Threat intelligence: enrich IOCs (IP, domain, URL, hash), search CVEs and actors, scan SBOMs. | vendor's own |
| [permits](https://www.anchorterminal.com/tools/addressintel-permits.md) | MCP server | SF Peninsula building permits and parcel buildability: SB 9, ADU and redevelopment leads. | vendor's own |
| [Swiss company data](https://www.anchorterminal.com/tools/prospex-swissco.md) | MCP server | Swiss company data: Zefix register, SHAB gazette, simap tenders, FINMA, GLEIF and ARAMIS | vendor's own |