# AgentData, free, No account, GET /signals: Company discovery API

> Technology changes: companies that started using a tool, newest first

AgentData's company discovery API on its No account plan. It costs $0.00 per 1,000 companies. It returns 1 of the 13 key fields we check: Technologies.
We haven't run AgentData through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 752 plans for company discovery APIs by price. Half the plans cost $1.188 per 1,000 companies or less.
[StackScan's $189 monthly plan](https://datacircle.dev/company-discovery-apis/stackscan/189-monthly-enterprise-post-v1-tech-lookup-lists/llms.txt) is the cheapest paid plan per 1,000 companies: as little as $0.0000015. StackScan's $189 monthly plan covers up to 259,200 pages a month at no extra cost. Each page holds 500,000 companies.
[PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies. PeopleSearch.im's $5 pack costs less up front than StackScan's $189 monthly plan.
[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/49-monthly/llms.txt), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/49-monthly-starter-post-discover/llms.txt) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) are the best company discovery API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-signals
- [Company discovery API: 60+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://useagentdata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `GET https://agentdata.run/api/v1/signals`
- API key: not needed
- Its API docs: https://agentdata.run/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: AgentData (https://useagentdata.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 8%
- Technologies: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: result
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Repeat free: 1 day
- Also pays for: from the same budget: One company: the tools it runs, company facts and signals · Companies using a technology: the customer list for any product we track · Companies filtered by technology, sector and size · Find a company by name or domain · The most used technologies, with company counts

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Technology changes: companies that started using a tool, newest first

## Data

- Freshness: stored
- Keep data: no limit
- Use data: Your account grants you a limited, non-exclusive, non-transferable licence to use the data within the scope of your plan for your own internal business purposes. Your plan lets your organisation use AgentData data in its own sales, marketing and research, including importing it into your own CRM and sales tools. You may not sell, license, publish or give the data, or lists made from it, to anyone outside your organisation, including your clients, unless we agree in writing. [...] You must not: Redistribute, resell, sublicense, or make available AgentData data to third parties, Build a competing database, product, or service using data obtained from AgentData, Systematically scrape, crawl, or extract data beyond your plan entitlements, Use AI assistants, scripts or multiple accounts to get around limits, including limits shared by the users of an AI assistant platform, Use data obtained from AgentData for spam, harassment, discrimination, or any unlawful purpose, Attempt to circumvent rate limits, gating mechanisms, or security controls, Use automated tools to access the service except through our official API, Use AgentData data to train, fine-tune, or develop machine learning or artificial intelligence models, Use data in any manner that violates applicable data protection laws, including the UK GDPR, EU GDPR, or CCPA [...]

## Plan

- Pay: $0
- You get: 50 results a day
- Enough for: 50 results a day
- Expires: resets at midnight UTC

## Rate limit

- Per day: 50
- Per second: 2
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required
- Method: GET
- Path: /signals

## About the plan

- Plan: No account
- Who can get it: anyone, no account or API key, limits counted per IP address

## The 4 fields the plan's answer can hold

company name, domain, technology, first seen

## AgentData's plans (5)

- [AgentData, free, No account, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-signals/llms.txt): $0.00 per 1,000, 8% complete, stored
- [AgentData, free, Account without a paid plan, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/free-account-without-a-paid-plan-get-signals/llms.txt): $0.00 per 1,000, 8% complete, stored
- [AgentData, $99 monthly, Pro, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/99-monthly-pro-get-signals/llms.txt): $3.30 per 1,000, 8% complete, stored
- [AgentData, $299 monthly, Business, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/299-monthly-business-get-signals/llms.txt): $1.993 per 1,000, 8% complete, stored
- [AgentData, contact us, Enterprise, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/contact-us-enterprise-get-signals/llms.txt): 8% complete, stored

## AgentData's calls for this API (4)

- `GET /companies`: [AgentData, free, No account, GET /companies](https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-companies/llms.txt)
- `GET /search`: [AgentData, free, No account, GET /search](https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-search/llms.txt)
- `GET /signals`: [AgentData, free, No account, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-signals/llms.txt)
- `GET /tech/{slug}`: [AgentData, free, No account, GET /tech/{slug}](https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-tech-slug/llms.txt)

## AgentData's APIs (5)

- [AgentData: company enrichment API pricing, 5 plans](https://datacircle.dev/company-enrichment-apis/agentdata/free-no-account/llms.txt)
- [AgentData: tech stack API pricing, 5 plans](https://datacircle.dev/company-technology-apis/agentdata/free-no-account/llms.txt)
- [AgentData: company discovery API pricing, 5 plans, GET /signals](https://datacircle.dev/company-discovery-apis/agentdata/free-no-account-get-signals/llms.txt)
- [AgentData: people search API pricing, 3 plans](https://datacircle.dev/people-search-apis/agentdata/99-monthly/llms.txt)
- [AgentData: people enrichment API pricing, 3 plans](https://datacircle.dev/person-enrichment-apis/agentdata/99-monthly/llms.txt)

## AgentData: company discovery API alternatives

- [The Companies API, $95 monthly, Startup, GET /v2/companies/by-prompt](https://datacircle.dev/company-discovery-apis/the-companies-api/95-monthly-startup-get-v2-companies-by-prompt/llms.txt): $1.90 per 1,000, 92% complete, stored
- [JobsPipe, $49 monthly, Builder, POST /v1/jobs/companies](https://datacircle.dev/company-discovery-apis/jobspipe/49-monthly-builder-post-v1-jobs-companies/llms.txt): $1.96 per 1,000, 62% complete, stored
- [Parsers VC, $999 monthly, Enterprise, GET /categories/{dimension}/{value}/{entity}](https://datacircle.dev/company-discovery-apis/parsers-vc/999-monthly-enterprise-get-categories-dimension-value-entity/llms.txt): $1.998 per 1,000, 69% complete, stored
- [Anysite, $200 monthly, Growth, POST /api/crunchbase/db/search](https://datacircle.dev/company-discovery-apis/anysite/200-monthly-growth-post-api-crunchbase-db-search/llms.txt): $2.00 per 1,000, 92% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://agentdata.run/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://agentdata.run/docs/mcp?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://agentdata.run/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://useagentdata.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://useagentdata.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://useagentdata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing