Candel Therapeutics

Candel Therapeutics, Inc. (Nasdaq: CADL) is a clinical-stage biopharmaceutical company headquartered in Needham, Massachusetts, developing off-the-shelf multimodal viral immunotherapies for solid tumors. Founded as Advantagene, the company advances two engineered viral platforms: aglatimagene besadenovec (CAN-2409), a replication-defective adenovirus delivered intratumorally alongside a prodrug to trigger immunogenic cell death, and linoserpaturev (CAN-3110), a replication-competent oncolytic herpes simplex virus. Its clinical programs span prostate cancer, non-small cell lung cancer, pancreatic cancer and recurrent high-grade glioma. Candel is a therapeutics developer, not a software vendor: it operates no developer program, publishes no public API, SDK or machine-readable specification, and its only credentialed surface is a clinical-trial investigator portal.

Candel Therapeutics is profiled on the APIs.io network. Tagged areas include Company, Biotechnology, Pharmaceuticals, Immunotherapy, and Oncology.

Candel Therapeutics’ developer surface includes engineering blog, support, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

8.4/100 minimal ▬ flat Agent 3/100 human only Front door AI 1/6 silent Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

0 APIs

Company Biotechnology Pharmaceuticals Immunotherapy Oncology Life Sciences Clinical Trials Healthcare

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 8.4/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.7 / 9

Regulatory Posture 1.2 / 15

Agent readiness — 3/100 · 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 7 / 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/candel-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 →

Pricing Plans 1

Published pricing tiers and plan structures.

Candel Therapeutics Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Candel Therapeutics Rate Limits

0 limits

RATE LIMITS

Security Posture 1

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

Candel Therapeutics Domain Security

TLSv1.3 · HSTS · 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

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 5

The organization behind the API

Website

About

Blog

BlogRSS

InvestorRelations

InvestorRelations

Source (apis.yml)

aid: candel-therapeutics
name: Candel Therapeutics
description: 'Candel Therapeutics, Inc. (Nasdaq: CADL) is a clinical-stage biopharmaceutical company headquartered in Needham,
  Massachusetts, developing off-the-shelf multimodal viral immunotherapies for solid tumors. Founded as Advantagene, the company
  advances two engineered viral platforms: aglatimagene besadenovec (CAN-2409), a replication-defective adenovirus delivered
  intratumorally alongside a prodrug to trigger immunogenic cell death, and linoserpaturev (CAN-3110), a replication-competent
  oncolytic herpes simplex virus. Its clinical programs span prostate cancer, non-small cell lung cancer, pancreatic cancer
  and recurrent high-grade glioma. Candel is a therapeutics developer, not a software vendor: it operates no developer program,
  publishes no public API, SDK or machine-readable specification, and its only credentialed surface is a clinical-trial investigator
  portal.'
url: https://raw.githubusercontent.com/api-evangelist/candel-therapeutics/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-09-09'
modified: '2026-09-09'
image: https://candeltx.com/hubfs/logo-main-nav-1.svg
tags:
- Company
- Biotechnology
- Pharmaceuticals
- Immunotherapy
- Oncology
- Life Sciences
- Clinical Trials
- Healthcare
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://candeltx.com/
- type: About
  url: https://candeltx.com/about
- type: Blog
  url: https://candeltx.com/blog
- type: BlogRSS
  url: https://candeltx.com/blog/rss.xml
- type: Support
  url: https://candeltx.com/contact
- type: PrivacyPolicy
  url: https://candeltx.com/privacy-policy
- type: InvestorRelations
  url: https://ir.candeltx.com/
- type: DomainSecurity
  url: security/candel-therapeutics-domain-security.yml
- type: LLMsTxt
  url: llms/candel-therapeutics-llms.txt
x-enrichment:
  date: '2026-09-09'
  status: minimal
  artifacts_added: 5
  pass: local-v3
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Candel Therapeutics is a clinical-stage biopharmaceutical developer whose only credentialed surface is a HubSpot-hosted
    clinical-trial investigator login; every contract-discovery path on candeltx.com returns a real 404 and the company publishes
    no developer portal, API reference or machine-readable specification.
  evidence:
  - url: https://candeltx.com/openapi.json
    status: 404
  - url: https://candeltx.com/.well-known/api-catalog
    status: 404
  - url: https://candeltx.com/sitemap.xml
    status: 200
  - url: https://candeltx.com/investigator-login
    status: 200
  checked: '2026-09-09'

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