# Elion Therapeutics > Clinical-stage biotechnology company developing next-generation polyene antifungals > for life-threatening invasive fungal infections. Formerly Sfunga Therapeutics. > Elion Therapeutics publishes no public API, no developer program, and no > machine-readable API contract. ## About Elion Therapeutics is a privately held, clinical-stage biotechnology company working on treatments for invasive fungal infections (IFIs). Its lead candidate, SF001, is a rationally designed analog of amphotericin B intended to retain broad fungicidal activity while mitigating the systemic toxicity that limits the parent molecule. SF001 received FDA Qualified Infectious Disease Product (QIDP) and Fast Track designations in 2023 and has moved from a first-in-human single-ascending-dose study into multiple-ascending-dose evaluation. The company closed an $81 million Series B in June 2024 led by Deerfield Management and the AMR Action Fund, with participation from Illinois Ventures. ## API surface None. Elion Therapeutics is a therapeutics developer, not a software vendor. Note on terminology: "API" in this company's sector means *active pharmaceutical ingredient*, not application programming interface. Pharmaceutical directories that list Elion under "API" headings are not evidence of a software interface. As of 2026-08-12 the following were probed on the company's only operated host and returned no machine-readable contract: - No OpenAPI, Swagger, GraphQL SDL, AsyncAPI, or Postman collection - No MCP server and no A2A agent card - No developer portal, API reference, SDKs, or public packages - No `/.well-known/` documents of any kind (all paths HTTP 404) - No GitHub organization ## Links - Website: https://eliontx.com/ - Secondary-market listing: https://forgeglobal.com/elion-therapeutics_stock/ ## Profile artifacts - apis.yml — https://raw.githubusercontent.com/api-evangelist/elion-therapeutics/refs/heads/main/apis.yml - security/elion-therapeutics-domain-security.yml — probed TLS/DNS posture - well-known/elion-therapeutics-well-known.yml — recorded absence of well-known documents