# echoloc — full guide for LLMs and AI agents

> Company intelligence from hiring data. echoloc reads millions of public job
> posts and turns them into searchable profiles of 760,000+ companies: the
> technologies each company uses, what it is adopting, replacing, or
> evaluating, its hiring velocity, stated pain points, and active projects.
> Built for B2B sales, GTM, and market research teams.

Unlike website-scraping technographics, echoloc's signals come from what
companies say in their own hiring — including backend, data, cloud, and AI
tooling that never appears in page source — and carry direction: adopting,
replacing, evaluating, not just "uses". 360,000+ companies have detected tech
stacks across 10,000+ technologies. Data refreshes daily.

Agent fast lane: https://echoloc.ai/for-agents/

## Product

- Company browser: https://echoloc.ai/app/search — filter 760K+ companies by
  technology (with adoption context: any/using/adopting/replacing/evaluating),
  industry, country, company size, and hiring velocity. Free to browse (first
  40 results per search); Standard $79/month unlocks full result depth, CSV
  export (10,000 rows per export, 50,000 rows/month), and saved lists.
- Pricing: https://echoloc.ai/#pricing — Free / Standard $79/mo / Data & API
  (custom, for bulk feeds and licensing).
- URL scheme for deep links into search:
  https://echoloc.ai/app/search?tech=Snowflake:adopting,&industry=Financial%20Services
  (tech takes Name:context pairs; also supports &country=, &size=, &velocity=).

## Developer API

Base URL: https://api.echoloc.ai — REST, JSON, auth via `X-API-Key` header.
OpenAPI 3.1 spec: https://api.echoloc.ai/openapi.json
Swagger UI: https://api.echoloc.ai/docs
Human docs: https://echoloc.ai/developers

### Getting a key

- Beta (free, instant): any signed-up echoloc user has a key at
  https://echoloc.ai/app/api — 100 requests/month, resets on the 1st.
  Sign up: https://echoloc.ai/auth?mode=signup&returnTo=%2Fapp%2Fapi
- Production (higher limits, bulk feeds, custom slices, licensing):
  email hello@echoloc.ai with the use case.

### Endpoints

1. Domain → company profile (enrichment):

    curl "https://api.echoloc.ai/api/corporate/v1/companies?domain=walgreens.com" \
      -H "X-API-Key: YOUR_API_KEY"

    Returns: firmographics (name, domain, industry, country, employee range),
    hiring stats (total_active_jobs, hiring_velocity, departments, seniority),
    full technology list with usage counts, and adoption-context arrays:
    tech_using, tech_adopting, tech_replacing, tech_evaluating.
    404 if no company matches the domain.

2. Search companies by technologies:

    curl "https://api.echoloc.ai/api/corporate/v1/companies/by-technologies" \
      -H "X-API-Key: YOUR_API_KEY" \
      -H "Content-Type: application/json" \
      -d '{"technologies": ["Python", "AWS"], "match": "any", "page": 1, "page_size": 20}'

    match: "any" (at least one) or "all" (every one). Case-insensitive.
    page_size max 100. Results ranked by total usage count; each result
    includes usage_count and matched_technologies.

3. Technology catalog:

    curl "https://api.echoloc.ai/api/corporate/v1/technologies?page=1&page_size=50&sort=count" \
      -H "X-API-Key: YOUR_API_KEY"

    All 10,000+ technologies with company_count each. sort: count | name.

### MCP server

Remote MCP server (Streamable HTTP, stateless): https://api.echoloc.ai/mcp
Registry name: ai.echoloc/company-technographics. Same X-API-Key auth (also accepts
Authorization: Bearer), same credits as REST. Tools:
search_companies_by_technologies, get_company_by_domain, list_technologies.
Discovery (initialize / tools/list) requires no key.

Claude Code: claude mcp add --transport http echoloc https://api.echoloc.ai/mcp --header "X-API-Key: YOUR_KEY"

### Errors

JSON body { "detail": "..." } with standard codes: 400 bad request,
401 missing/invalid key, 404 not found, 422 validation, 429 beta key over
its monthly limit (detail explains reset; production keys have no such cap).

## Research

- Research hub: https://echoloc.ai/research/
- Who's Actually Building with AI in 2026: https://echoloc.ai/research/whos-building-with-ai-2026/
- The Great SAP Migration, Measured: https://echoloc.ai/research/great-sap-migration-2026/
- The Displacement Index: https://echoloc.ai/research/displacement-index-2026/

## Browse by technology

- Technology index: https://echoloc.ai/companies-using/ — pages for hundreds of
  technologies listing companies that use each one.
- Company profiles: https://echoloc.ai/company/

## Methodology & trust

- Data & methodology: https://echoloc.ai/methodology/
- About: https://echoloc.ai/about/
- Terms: https://echoloc.ai/terms · Privacy: https://echoloc.ai/privacy

Contact: hello@echoloc.ai (replies within one business day)