# ElysianPrimus > Data APIs built from 25 official and open sources across the web, cleaned and merged, served over REST and MCP. One API key works on every API. Keys are free and are created on the site, not by an API call: a person signs up at https://elysianintelligence.com/signup/ (it has a bot check), accepts the API Terms of Service (https://elysianintelligence.com/terms/), and gives the key to the agent. The key is shown once. Send it as "Authorization: Bearer ". TradeCheck answers only keys that certified the FCRA terms; a person certifies at sign-up or at https://elysianintelligence.com/key/. Prices (before tax): free 1,000 calls a month on each API; pay as you go $1 per 1,000 calls, prepaid, never expire; starter $19 a month for 50,000 calls on each API; pro $99 a month for 500,000. Only successful calls count. Paid plans open soon; the free plan is open now. One MCP server for every API, with OAuth sign-in for Claude, ChatGPT and other MCP clients: https://mcp.elysianintelligence.com/mcp. Tool names start with the API (cve_, tradecheck_, labellink_, skillscan_, edgar_, housing_, fire_). A raw key also works as the Bearer token. ## APIs - [CVE Intelligence](https://elysianintelligence.com/apis/cve/): One merged record for each CVE: CVE List, CISA KEV, EPSS, exploit links, NVD status and fixed versions. REST https://api.elysianintelligence.com/cve/v1, MCP https://api.elysianintelligence.com/cve/mcp, OpenAPI https://api.elysianintelligence.com/cve/openapi.json, freshness https://api.elysianintelligence.com/cve/status. - [TradeCheck](https://elysianintelligence.com/apis/tradecheck/): Contractor license checks for Oregon and Washington, with one verdict per check. REST https://api.elysianintelligence.com/tradecheck/v1, MCP https://api.elysianintelligence.com/tradecheck/mcp, OpenAPI https://api.elysianintelligence.com/tradecheck/openapi.json, freshness https://api.elysianintelligence.com/tradecheck/status. - [LabelLink](https://elysianintelligence.com/apis/labellink/): US pesticide products from EPA labels: registration, ingredients, crops and pests, restricted use. REST https://api.elysianintelligence.com/labellink/v1, MCP https://api.elysianintelligence.com/labellink/mcp, OpenAPI https://api.elysianintelligence.com/labellink/openapi.json, freshness https://api.elysianintelligence.com/labellink/status. - [SkillScan](https://elysianintelligence.com/apis/skillscan/): A registry of agent skills, plugins, rules and MCP servers, each with a static security scan. REST https://api.elysianintelligence.com/skillscan/v1, MCP https://api.elysianintelligence.com/skillscan/mcp, OpenAPI https://api.elysianintelligence.com/skillscan/openapi.json, freshness https://api.elysianintelligence.com/skillscan/status. - [EDGAR](https://elysianintelligence.com/apis/edgar/): Fresh, citable SEC filings, company profiles and key XBRL financial facts, each with its sec.gov source. REST https://api.elysianintelligence.com/edgar/v1, MCP https://api.elysianintelligence.com/edgar/mcp, OpenAPI https://api.elysianintelligence.com/edgar/openapi.json, freshness https://api.elysianintelligence.com/edgar/status. - [HomeSignal](https://elysianintelligence.com/apis/housing/): US housing market data from government sources: house prices, construction, new home sales, vacancy, shelter inflation and Treasury yields. REST https://api.elysianintelligence.com/housing/v1, MCP https://api.elysianintelligence.com/housing/mcp, OpenAPI https://api.elysianintelligence.com/housing/openapi.json, freshness https://api.elysianintelligence.com/housing/status. - [FireLine](https://elysianintelligence.com/apis/fire/): US wildfire activity near any point, and the federal wildfire and forestry contracts to bid on. REST https://api.elysianintelligence.com/fire/v1, MCP https://api.elysianintelligence.com/fire/mcp, OpenAPI https://api.elysianintelligence.com/fire/openapi.json, freshness https://api.elysianintelligence.com/fire/status. ## Notes - TradeCheck: TradeCheck data comes from state public records. It is refreshed nightly, but each state publishes on its own schedule, so it can be out of date: verify with the state before you rely on it. A TradeCheck answer is not a consumer report. Do not use it for purposes covered by the Fair Credit Reporting Act (FCRA), such as decisions about credit, insurance or employment eligibility. Every answer carries this notice. - LabelLink: LabelLink is an informational summary of EPA PPLS data. Always read the official label (every answer links it) and check state registration before use. - SkillScan: The scan reads text with a fixed set of patterns and never runs anything. A low risk level does not mean an artifact is safe, and a high one does not mean it is malicious. Read what you install. - HomeSignal: HomeSignal data is informational only. It is not investment, real estate, appraisal, lending or financial advice. Sources revise their figures, and the data changes when they do. Market health readings are rule-based estimates, not forecasts. Do not use the data in violation of fair housing or fair lending laws. Please cite the agency of each value, as each response's citation gives it. BLS asks us to state: "BLS.gov cannot vouch for the data or analyses derived from these data after the data have been retrieved from BLS.gov." - FireLine: Fire data is informational only. It can be delayed, incomplete or wrong. Satellite detections can be false positives, such as industrial heat, gas flares or sun glint, and can miss fires under cloud or smoke. Do not use Fire data, or let end users use it, for evacuation, emergency response or any other life-safety decision. Follow official alerts and orders from local authorities, the National Weather Service and InciWeb. Every fire answer carries this notice.