The Muse API vs Coresignal for AI agents
The Muse API is a public JSON API for job and company listings posted on The Muse. Coresignal is a B2B jobs data API and dataset of deduplicated job postings merged from many sources into one format.
The short answer
- The Muse API: A free, no-key way to pull The Muse's curated job listings with company context.
- Coresignal: Large-scale, historical job-postings data for analytics, research and data products.
Side by side
| The Muse API | Coresignal | |
|---|---|---|
| Searches | Jobs listed on The Muse, filterable by company, category, level and location (including flexible/remote). | Company websites, professional networks, ATS platforms and major job aggregators; 486M+ postings, 52M+ active, 195+ countries. |
| Returns | JSON pages of 20 results; each job has name, contents (description), publication_date, locations, levels, categories, company and refs.landing_page. | Records with job_id, status, title, description, seniority, employment_type, company_name, company_domain, location, country/city, salary (min, max, currency), external_url and job_sources[].url. |
| Before the first call | Nothing for testing; an api_key from registration is required for any use beyond testing. | A Coresignal account and API key (trial available); queries use Elasticsearch DSL. |
| Free | 500 requests per hour without a key; 3,600 per hour with a registered key. No price is stated. | Trial with 2,000 free credits, no credit card required (1 credit per job posting record). |
| Paid | Not stated on its pages | Self-serve plans from $49 per month (Mini, 2,500 credits per month); datasets are custom-priced from $1,000. |
| Acting on a result | refs.landing_page points to the job page on themuse.com. | external_url is the job URL on the company's own site (not always filled); job_sources[].url gives each source posting. |
| Limits on keeping or showing results | Content shown via the API must link back to The Muse; on termination you must destroy stored Muse Content (terms last modified 7/25/2015). | Not stated on its pages |
| Coverage | The location filter lists cities worldwide; no stated country coverage. | 195+ countries. |
| MCP server | No official server listed | Official Coresignal MCP server, OAuth 2.1: https://mcp.coresignal.com/mcp/v2 (legacy https://mcp.coresignal.com/mcp deprecated Nov 1, 2026) |
Where Openpath fits
If the agent needs a job to apply for in Austin, Texas, or a remote one, Openpath returns the listings themselves, free and with no key. See Openpath vs The Muse API and Openpath vs Coresignal.
Questions people ask
What do I need before I can use The Muse API?
Nothing for testing; an api_key from registration is required for any use beyond testing.
Is The Muse API free?
500 requests per hour without a key; 3,600 per hour with a registered key. No price is stated.
What do I need before I can use Coresignal?
A Coresignal account and API key (trial available); queries use Elasticsearch DSL.
Is Coresignal free?
Trial with 2,000 free credits, no credit card required (1 credit per job posting record).
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
The Muse API, read on October 15, 2026:
- themuse.com/developers/api/v2: “Registration is required for any use beyond testing.”
- themuse.com/developers/api/v2: “you're limited to 500 requests per hour”
- themuse.com/developers/api/v2: “This will allow you to make up to 3600 requests per hour.”
- themuse.com/api/public/jobs: “https://www.themuse.com/jobs/dmcsinaigracehospital/registered-nurse-registered-nurse-medsurg-telemetry-full-time-nights-6ec354”
- themuse.com/developers/api/v2/terms: “any Muse Content provided through the Apps by utilizing the Muse API will link back to The Muse Website”
Coresignal, read on October 15, 2026:
- coresignal.com/solutions/jobs-data-api: “Jobs data from company websites, professional networks, ATS platforms, and major jobs data aggregators”
- coresignal.com/solutions/jobs-data-api: “2,000 free credits · No credit card required”
- coresignal.com/solutions/jobs-data-api: “195+ countries covered”
- coresignal.com/pricing: “monthly plans starting at $49/month”
- coresignal.com/pricing: “One price, full data record”
- docs.coresignal.com/jobs-api/multi-source-jobs-api/data-dictionary-multi-source-jobs-api: “External (company) job URL”
- docs.coresignal.com/integrations/coresignal-mcp: “OAuth 2.1 sign-in via the Coresignal dashboard”