Engrail Therapeutics website screenshot

Engrail Therapeutics

Engrail Therapeutics is a clinical-stage precision-neuroscience pharmaceutical company founded in 2019 and headquartered in San Diego, California. It applies precision chemistry and pharmacology to scientifically validated mechanisms of action, developing targeted small-molecule therapies for neuropsychiatric and neurodevelopmental diseases with significant unmet need — including generalized anxiety disorder, major depressive disorder characterized by anhedonia, post-traumatic stress disorder and rare neurodegenerative conditions. Its lead program, ENX-102, is a highly selective GABA-A alpha-2,3,5 positive allosteric modulator in Phase 2 (the ENCALM trial) for generalized anxiety disorder; ENX-104 is in clinical development for anhedonic depression. The company closed an oversubscribed $157M Series B in March 2024 co-led by F-Prime Capital, Forbion and Norwest Venture Partners, bringing total capital raised since inception past $220M. Engrail publishes no product or developer API; the machine-readable surfaces catalogued here are the public read-only content API and the OAuth-protected Model Context Protocol servers exposed by its corporate website.

Engrail Therapeutics publishes 1 API on the APIs.io network: Site Content API. Tagged areas include Company, Biotechnology, Pharmaceuticals, Life Sciences, and Neuroscience.

Engrail Therapeutics’ developer surface includes engineering blog, support, authentication, and 19 more developer resources.

38.8/100 thin ▬ flat Agent 43/100 agent ready Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0
2 APIs 1 MCP Servers
CompanyBiotechnologyPharmaceuticalsLife SciencesNeuroscienceClinical TrialsDrug DevelopmentHealthcareMental HealthMCP

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0
Composite quality — 38.8/100 · thin
Contract Quality 11.7 / 21
Developer Ergonomics 3.5 / 17
Access Clarity 3.6 / 17
Operational Transparency 0.0 / 11
Contract Governance 3.1 / 10
Discoverability 6.8 / 9
Regulatory Posture 7.9 / 15
Agent readiness — 43/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 6 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 4 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 5 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 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.
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/. This rating is computed from github.com/api-evangelist/engrail-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 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Engrail Therapeutics Site Content API

The public, anonymously-readable content API exposed by engrail.com at /wp-json/wp/v2. Sixteen read operations over posts, pages, media, categories, tags, comments, and the site...

Engrail Therapeutics MCP Servers

Two live Model Context Protocol servers registered under the `mcp` REST namespace on engrail.com, fronted by RFC 8414 and RFC 9728 OAuth discovery documents at the apex. Both ar...

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Security Posture 2

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

Engrail Therapeutics Authentication

http/oauth2 · 2 schemes

SECURITY

Engrail Therapeutics Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Engrail Therapeutics Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Resources

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Access & Security 3

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 7

The organization behind the API

Scroll for all 7

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: engrail-therapeutics
name: Engrail Therapeutics
description: Engrail Therapeutics is a clinical-stage precision-neuroscience pharmaceutical company founded in 2019 and headquartered
  in San Diego, California. It applies precision chemistry and pharmacology to scientifically validated mechanisms of action,
  developing targeted small-molecule therapies for neuropsychiatric and neurodevelopmental diseases with significant unmet
  need — including generalized anxiety disorder, major depressive disorder characterized by anhedonia, post-traumatic stress
  disorder and rare neurodegenerative conditions. Its lead program, ENX-102, is a highly selective GABA-A alpha-2,3,5 positive
  allosteric modulator in Phase 2 (the ENCALM trial) for generalized anxiety disorder; ENX-104 is in clinical development
  for anhedonic depression. The company closed an oversubscribed $157M Series B in March 2024 co-led by F-Prime Capital, Forbion
  and Norwest Venture Partners, bringing total capital raised since inception past $220M. Engrail publishes no product or
  developer API; the machine-readable surfaces catalogued here are the public read-only content API and the OAuth-protected
  Model Context Protocol servers exposed by its corporate website.
image: https://www.engrail.com/wp-content/uploads/2022/05/logo.png
url: https://raw.githubusercontent.com/api-evangelist/engrail-therapeutics/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.23'
created: '2026-08-01'
modified: '2026-08-01'
tags:
- Company
- Biotechnology
- Pharmaceuticals
- Life Sciences
- Neuroscience
- Clinical Trials
- Drug Development
- Healthcare
- Mental Health
- MCP
tags_raw:
- Company
- Biotechnology
- Pharmaceuticals
- Life Sciences
- Neuroscience
- Clinical Trials
- Drug Development
- Healthcare
- Mental Health
- Model Context Protocol
apis:
- aid: engrail-therapeutics:content
  name: Engrail Therapeutics Site Content API
  description: The public, anonymously-readable content API exposed by engrail.com at /wp-json/wp/v2. Sixteen read operations
    over posts, pages, media, categories, tags, comments, and the site's own type/taxonomy/status vocabulary, plus site search.
    Derived mechanically from the provider's own WordPress REST route-discovery document — Engrail publishes no hand-authored
    OpenAPI.
  humanURL: https://www.engrail.com/investors-media/
  baseURL: https://www.engrail.com/wp-json
  tags:
  - Content
  - Search
  - Media
  properties:
  - type: OpenAPI
    url: openapi/engrail-therapeutics-content-openapi.yml
  - type: Overlay
    url: overlays/engrail-therapeutics-content-overlay.yaml
  - type: ErrorCatalog
    url: errors/engrail-therapeutics-problem-types.yml
  - type: DataModel
    url: data-model/engrail-therapeutics-data-model.yml
  - type: Blog
    url: https://www.engrail.com/investors-media/
- aid: engrail-therapeutics:mcp
  name: Engrail Therapeutics MCP Servers
  description: Two live Model Context Protocol servers registered under the `mcp` REST namespace on engrail.com, fronted by
    RFC 8414 and RFC 9728 OAuth discovery documents at the apex. Both are OAuth-protected — anonymous tools/list returns HTTP
    401 — so the live tool manifest is not readable and no tool list is recorded.
  humanURL: https://www.engrail.com/
  baseURL: https://www.engrail.com/wp-json/mcp/mcp-oauth-server
  tags:
  - MCP
  - Agents
  tags_raw:
  - Model Context Protocol
  - Agents
  properties:
  - type: MCPServer
    url: mcp/engrail-therapeutics-mcp.yml
  - type: ToolCrosswalk
    url: mcp/engrail-therapeutics-tool-crosswalk.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.engrail.com/
- type: SecondaryMarket
  url: https://forgeglobal.com/engrail-therapeutics_stock/
- type: About
  url: https://www.engrail.com/about-us/
- type: Blog
  url: https://www.engrail.com/investors-media/
- type: BlogRSS
  url: https://www.engrail.com/feed/
- type: Support
  url: https://www.engrail.com/contact-us/
- type: TermsOfService
  url: https://www.engrail.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.engrail.com/privacy-policy/
- type: LegalDisclaimer
  url: https://www.engrail.com/legal-disclaimer/
- type: Careers
  url: https://www.engrail.com/careers/
- type: Partners
  url: https://www.engrail.com/partners/
- type: Pipeline
  url: https://www.engrail.com/pipeline/
- type: LinkedIn
  url: https://www.linkedin.com/company/engrail-therapeutics
- type: WellKnown
  url: well-known/engrail-therapeutics-well-known.yml
- type: Authentication
  url: authentication/engrail-therapeutics-authentication.yml
- type: OAuthScopes
  url: scopes/engrail-therapeutics-scopes.yml
- type: Conventions
  url: conventions/engrail-therapeutics-conventions.yml
- type: Conformance
  url: conformance/engrail-therapeutics-conformance.yml
- type: Lifecycle
  url: lifecycle/engrail-therapeutics-lifecycle.yml
- type: DomainSecurity
  url: security/engrail-therapeutics-domain-security.yml
- type: LLMsTxt
  url: llms/engrail-therapeutics-llms.txt
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-01'
  status: enriched
  artifacts_added: 20
  pass: local-v1

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