Elion Therapeutics

Elion Therapeutics is a privately held, clinical-stage biotechnology company developing treatments for life-threatening invasive fungal infections (IFIs). Formerly known as Sfunga Therapeutics, the company was founded on the belief that mechanistic insight into natural products enables targeted optimization of them. Its lead candidate, SF001, is a next-generation polyene antifungal — 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 advanced from a first-in-human single-ascending-dose study into multiple-ascending-dose evaluation. Elion closed an $81 million Series B in June 2024 led by Deerfield Management and the AMR Action Fund, with participation from Illinois Ventures. Elion is a therapeutics developer, not a software vendor: it publishes no developer program, public API, or machine-readable API contract, and this profile records that absence rather than any API surface.

Elion Therapeutics is profiled on the APIs.io network. Tagged areas include Company, Biotechnology, Pharmaceuticals, Therapeutics, and Life Sciences.

🌐 Visit website 📡 Source on GitHub

3.7/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Biotechnology Pharmaceuticals Therapeutics Life Sciences Anti-Infectives Drug Development Clinical Stage Healthcare

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 3.7/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.6 / 9

Regulatory Posture 1.1 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/elion-therapeutics: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Elion Therapeutics Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Company

Company

Source (apis.yml)

aid: elion-therapeutics
name: Elion Therapeutics
description: 'Elion Therapeutics is a privately held, clinical-stage biotechnology company developing treatments for life-threatening
  invasive fungal infections (IFIs). Formerly known as Sfunga Therapeutics, the company was founded on the belief that mechanistic
  insight into natural products enables targeted optimization of them. Its lead candidate, SF001, is a next-generation polyene
  antifungal — 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 advanced from a first-in-human single-ascending-dose study into multiple-ascending-dose
  evaluation. Elion closed an $81 million Series B in June 2024 led by Deerfield Management and the AMR Action Fund, with
  participation from Illinois Ventures. Elion is a therapeutics developer, not a software vendor: it publishes no developer
  program, public API, or machine-readable API contract, and this profile records that absence rather than any API surface.'
url: https://raw.githubusercontent.com/api-evangelist/elion-therapeutics/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-09-02'
  method: derived
specificationVersion: '0.23'
created: '2026-08-12'
modified: '2026-08-12'
tags:
- Company
- Biotechnology
- Pharmaceuticals
- Therapeutics
- Life Sciences
- Anti-Infectives
- Drug Development
- Clinical Stage
- Healthcare
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/elion-therapeutics-domain-security.yml
- type: Website
  url: https://eliontx.com/
- type: Company
  url: https://forgeglobal.com/elion-therapeutics_stock/
- type: LLMsTxt
  url: llms/elion-therapeutics-llms.txt
x-enrichment:
  date: '2026-08-12'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Elion Therapeutics is a clinical-stage antifungal drug developer whose only web property is a WordPress marketing
    site — the origin answers HTTP 404 to every /.well-known/ path and to /llms.txt, and there is no developer portal, GitHub
    organization, or API of any kind to profile.
  evidence:
  - url: https://eliontx.com/.well-known/api-catalog
    status: 404
  - url: https://eliontx.com/llms.txt
    status: 404
  - url: https://eliontx.com/robots.txt
    status: 200
  - url: https://github.com/eliontx
    status: 404
  checked: '2026-08-12'

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