Spero Therapeutics

Spero Therapeutics is a clinical-stage biopharmaceutical company advancing innovative medicines for immune-mediated and infectious diseases. Its pipeline includes SP001, a third-generation anti-CD40L antibody targeting IgG4-related disease, alongside earlier programs in antibacterial and rare-disease therapeutics. Spero was surfaced as a portfolio company of GV and added to the API Evangelist network. As a life-sciences drug developer, Spero publishes a corporate and investor-relations web presence but no public developer API, developer portal, or technical integration surface; this profile captures its identity and probed domain-security posture.

Spero Therapeutics is profiled on the APIs.io network. Tagged areas include Company, Life Sciences, Biopharmaceutical, Clinical Stage, and Drug Development.

Spero Therapeutics’ developer surface includes engineering blog and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
14.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyLife SciencesBiopharmaceuticalClinical StageDrug DevelopmentImmunologyInfectious Disease

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 14.3/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/spero-therapeutics: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Spero Therapeutics Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: spero-therapeutics
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/spero-therapeutics.png
name: Spero Therapeutics
description: Spero Therapeutics is a clinical-stage biopharmaceutical company advancing innovative medicines for immune-mediated
  and infectious diseases. Its pipeline includes SP001, a third-generation anti-CD40L antibody targeting IgG4-related disease,
  alongside earlier programs in antibacterial and rare-disease therapeutics. Spero was surfaced as a portfolio company of
  GV and added to the API Evangelist network. As a life-sciences drug developer, Spero publishes a corporate and investor-relations
  web presence but no public developer API, developer portal, or technical integration surface; this profile captures its
  identity and probed domain-security posture.
url: https://raw.githubusercontent.com/api-evangelist/spero-therapeutics/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Life Sciences
- Biopharmaceutical
- Clinical Stage
- Drug Development
- Immunology
- Infectious Disease
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/spero-therapeutics-domain-security.yml
- type: Website
  url: https://www.sperotx.com
- type: PrivacyPolicy
  url: https://www.sperotx.com/privacy-policy/
- type: TermsOfService
  url: https://www.sperotx.com/terms-of-use/
- type: Blog
  url: https://www.sperotx.com/investors/press-releases/
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1