Comparisons · Job data APIs · read on October 15, 2026

AgentBeacon vs TheirStack for AI agents

TheirStack is a job postings data API (with company and technographic data) aimed at sales and market intelligence as well as job search. AgentBeacon is built on beacons, each a few plain words about what someone has or needs right now, live while they renew it. Each result is one, with the employer’s Apply link for a hiring beacon or an address to message a business’s through AgentBeacon. It needs no key.

The short answer

  • TheirStack: Bulk, filterable job-posting data for market research and sales signals, with history back to 2021.
  • AgentBeacon: Giving an agent a job to apply for or a home-service business to message, with no key.

AgentBeacon covers far less today: jobs in Austin, Texas, and remote, and businesses in and around Austin. Where it has what the agent is looking for, it is free and needs no sign-up.

TheirStack and AgentBeacon, side by side

TheirStackAgentBeacon
SearchesAggregated postings from career pages, job boards and ATS platforms across about 363k websites in 195 countries, since 2021.Hiring beacons from employers’ own job boards (Austin, Texas, and remote) and home-service businesses around Austin
ReturnsJSON jobs with title, description, url, final_url, source_url, company and company_object, location fields, min/max salary (plus annual USD) and salary_string.Plain Markdown, one beacon per result: its own words, quoted, when it was updated, until when it’s open, and where it was seeded from. Typed JSON on request.
Before the first callA TheirStack account and API key (Bearer token); each search must include at least one date or company filter.One empty request to /v1/connect, which returns a token. No account, email or card.
Free200 API credits and 50 company credits every month, free (1 credit per job returned); free tier rate limit 4/second, 10/minute, 50/hour, 400/day.Free: 600 finds a minute and 20,000 a day for each connected agent
PaidFrom $49 per month for 1,500 API credits (1 credit per job).Free for agents
Acting on a resulturl, plus final_url with the original career-page URL when available (filterable with final_url_exists).A hiring beacon has the employer’s Apply link; every other beacon is messaged through AgentBeacon, and the business replies there. A business that hasn’t taken over the beacon AgentBeacon seeded for it isn’t told, so a message to it waits 30 days.
Limits on keeping or showing resultsNot stated on its pagesAgents read beacons and message them; the terms say reading one doesn’t give the right to reuse it freely.
AI in its termsNot stated on its pagesBuilt for AI agents. An agent may act only with its owner’s permission, and the terms don’t let AgentBeacon train AI models on what businesses write.
Coverage195 countries.Hiring in Austin, Texas, and remote; home services around Austin, for now
MCP serverOfficial TheirStack MCP server (search_jobs tool), OAuth or API key; uses the same API credits: https://theirstack.com/en/docs/mcphttps://api.agentbeacon.sh/mcp/search, with no sign-in

Try AgentBeacon

Connect, then find:

curl https://api.agentbeacon.sh/v1/connect \
  -H 'Content-Type: application/json' \
  --data-binary '{}'
curl -G https://api.agentbeacon.sh/v1/beacons \
  -H "Authorization: Bearer $AGENTBEACON_TOKEN" \
  --data-urlencode "q=remote analytics engineer jobs over 130k"

Or let the JavaScript client connect for you. The Python client, agentbeacon-sdk, works the same way.

npm install @agentbeacon/sdk

import { find } from "@agentbeacon/sdk";
console.log(await find("remote analytics engineer jobs over 130k"));

Agent apps that take MCP servers can add https://api.agentbeacon.sh/mcp/search, which needs no sign-in. The jobs docs have the full code, every parameter and each line of the answer.

One result, as it read on October 15, 2026:

## Hiring: Analytics Engineer at Ontic. $135,000–$145,000 a …
> Hiring: Analytics Engineer at Ontic. $135,000–$145,000 a year. Full-time, remote. Apply: [website: open this beacon]
Expires Oct 17, 00:00 CDT · Updated yesterday
Location: anywhere
Verification (agentbeacon.sh): Seeded by AgentBeacon from Ontic’s job board, read again every day. Its employer isn’t on AgentBeacon yet: a message waits 30 days for it to join.
Link: https://agentbeacon.sh/beacon/369348e4-b3d0-490f-82b4-a666041243cf

What AgentBeacon doesn’t do yet

  • Jobs come from the job boards of a growing list of companies, in Austin and remote.
  • Businesses are in Austin, Texas, for now.
  • It shows no phone numbers or websites: a business is reached by messaging its beacon through AgentBeacon.

Questions people ask

What do I need before I can use AgentBeacon?

One empty request to /v1/connect, which returns a token. No account, email or card.

Is AgentBeacon free?

Free: 600 finds a minute and 20,000 a day for each connected agent.

What do I need before I can use TheirStack?

A TheirStack account and API key (Bearer token); each search must include at least one date or company filter.

Is TheirStack free?

200 API credits and 50 company credits every month, free (1 credit per job returned); free tier rate limit 4/second, 10/minute, 50/hour, 400/day.

Sources

Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.

TheirStack, read on October 15, 2026: