The best job posting APIs in 2026

Disclosure first: Reqbeat is one of the six products below and we built it. Every claim about the other five comes from that vendor's own public site as of October 2026, linked so you can check it, and the verdict table at the end names the jobs where each of them — not us — is the right answer.

"Job posting API" covers three different products that happen to share a noun: datasets you query (history, bulk, filters), feeds that push changes to you, and prospecting platforms that wrap the data in a sales motion. Most bad purchases in this category are a mismatch on that axis, not a data-quality problem. So this list sorts by what each product actually is.

What we judged on

• Coverage, by the vendor's own published numbers — and whether the vendor is honest about what it cannot see.
• Freshness, as a contract — not "real-time" as an adjective, but a stated cadence you can hold them to.
• Evidence semantics — can you open the posting behind a row, and is deduplication a published rule or a vibe?
• Delivery — REST, bulk files, webhooks, MCP; pull and push are different products.
• Pricing you can predict — what a month costs before you have run one.

1. Reqbeat — best for acting on new postings

That is us, listed first with the disclosure above in force. Reqbeat is a hiring-signal event feed, not a dataset: you register a watch on a company or saved search, and new matching reqs are pushed to your webhook as opened, reobserved, reposted or closed events with the real posting and its ATS link attached. The corpus is re-read every 3 hours across 7 regions, the dedup rule is published on the method page, no-coverage is reported as no_ats_signal rather than "not hiring", and no person data is shipped, by design. Delivery is REST, webhooks (docs), MCP, Clay and n8n. The free tier — 3 watches, 50 delivered changes a month, 100 calls a day, no card — is designed to let you judge the feed before paying.

The honest limits: no posting history, no technographics, no bulk exports, no contacts. If your job is research rather than reaction, keep reading.

2. TheirStack — best dataset-plus-technographics

TheirStack pairs a large postings database — 251M postings, 195 countries, by their numbers — with a technographics layer of 33k tracked technologies, so you can ask "companies hiring data engineers that run Snowflake". Webhooks (job.new, job.closed, company.new) attach to saved searches on API plans, and everything is metered in credits — predictable for list pulls, harder to predict for continuous feeds. It is the strongest research tool on this list and the most-cited product in the category.

Pick it for tech-stack targeting and posting history. Think twice if you mainly want a feed: see Reqbeat vs TheirStack for the head-to-head and TheirStack alternatives for the field.

3. Coresignal — best bulk corpus for data teams

Coresignal sells postings as raw material: 482M+ records, 85+ fields, history to 2020, by their numbers, delivered as bulk datasets or APIs. There is no prospecting layer and no event semantics — the buyer is a data team building models or products, and at that job it is the deepest shelf here.

Pick it for training data, enrichment at volume, long history. Think twice if you want alerts: you would be building the watching, dedup and delivery layer yourself.

4. PredictLeads — best multi-signal bundle for agents

PredictLeads packages job openings (270M+ historical records since 2016, 1M+ found weekly, refreshed at least every 36 hours, by their numbers) with news, funding and technology detections, delivered over REST, flat files, real-time webhooks and MCP. 100 free API requests a month make it easy to evaluate. Jobs are one product line among several — breadth is the point.

Pick it for feeding several signal families into an agent or warehouse from one vendor. Think twice if you want one signal done deeply with a published contract — that cut is PredictLeads alternatives.

5. Crustdata — best when signals ride an enrichment graph

Crustdata is a real-time B2B data layer — 1B+ people, 60M+ company profiles, by their numbers — where job and headcount signals are features of a broad graph, delivered over API, MCP and datasets, with a Watcher API for monitoring companies. If you need people data and company signals from one place, this is that product.

Pick it for enrichment-plus-signals in one integration. Think twice if you are buying the hiring signal itself and need its event-level semantics documented up front.

6. Mantiks — best when the contact is the deliverable

Mantiks is a prospecting platform rather than a data API: it monitors markets and companies, raises automatic alerts on hiring needs, and attaches decision-maker contact details, feeding your CRM or ATS via API, webhook or native integrations. 7-day trial.

Pick it for recruiting workflows where posting-plus-person is the unit of work. Think twice if bundled person data will not clear your compliance review — the field without it is on Mantiks alternatives.

The verdict, by job to be done