Coral

Coral is a local-first SQL runtime that gives AI agents governed, read-only access to data across any API, database, or file system using standard SQL — no custom integrations, ETL, or glue code required. Built by Phoebe Technology Limited (a GV / Google Ventures portfolio company incorporated in England and Wales, formerly branded Phoebe at phoebe.ai), Coral translates SQL into API calls or file reads and returns a single result set, handling authentication, authorization, pagination, rate limiting, and schema mapping automatically. It ships 25+ bundled sources (GitHub, GitLab, Slack, Datadog, Linear, Sentry, Jira, Stripe, PagerDuty, Notion, Grafana, Confluence and more), supports cross-source SQL JOINs executed locally, and exposes the same runtime over the Model Context Protocol (MCP) or a CLI. Coral is open-source (Apache-2.0), self-hosted so queries and data never leave your infrastructure, and ISO 27001:2022 certified / GDPR compliant.

Coral is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Agents, MCP, and SQL.

Coral’s developer surface includes documentation, getting-started guide, engineering blog, pricing, support, CLI, changelog, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub

30.1/100 thin ▬ flat Agent 12/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs 1 MCP Servers

Company Artificial Intelligence Agents MCP SQL Data Access Data Integration Developer Tools Open-Source

Kin Score

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

Composite quality — 30.1/100 · thin

Contract Quality 0.0 / 25

Developer Ergonomics 10.5 / 20

Access Clarity 7.9 / 20

Operational Transparency 3.8 / 13

Contract Governance 2.2 / 12

Discoverability 5.7 / 10

Agent readiness — 12/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 5 / 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

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.

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/phoebe: 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 →

MCP Servers 1

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

Coral MCP Server

MCP SERVER

Security Posture 2

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

Phoebe Domain Security

TLSv1.3 · DMARC

SECURITY

Phoebe Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

WellKnown

MCPServer

AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Conventions

Conventions

Conformance

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

CLI

CLI

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

DomainSecurity

SecurityTxt

Compliance

Operate 2

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: phoebe
name: Coral
description: Coral is a local-first SQL runtime that gives AI agents governed, read-only access to data across any API, database,
  or file system using standard SQL — no custom integrations, ETL, or glue code required. Built by Phoebe Technology Limited
  (a GV / Google Ventures portfolio company incorporated in England and Wales, formerly branded Phoebe at phoebe.ai), Coral
  translates SQL into API calls or file reads and returns a single result set, handling authentication, authorization, pagination,
  rate limiting, and schema mapping automatically. It ships 25+ bundled sources (GitHub, GitLab, Slack, Datadog, Linear, Sentry,
  Jira, Stripe, PagerDuty, Notion, Grafana, Confluence and more), supports cross-source SQL JOINs executed locally, and exposes
  the same runtime over the Model Context Protocol (MCP) or a CLI. Coral is open-source (Apache-2.0), self-hosted so queries
  and data never leave your infrastructure, and ISO 27001:2022 certified / GDPR compliant.
url: https://raw.githubusercontent.com/api-evangelist/phoebe/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: profiled
x-tier-reason: enriched-from-portfolio-lead
x-company: Phoebe Technology Limited
x-brand: Coral
x-former-domain: https://phoebe.ai
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
image: https://withcoral.com/og-image.png
tags:
- Company
- Artificial Intelligence
- Agents
- MCP
- SQL
- Data Access
- Data Integration
- Developer Tools
- Open-Source
tags_raw:
- Company
- Ai
- Agents
- Model Context Protocol
- SQL
- Data Access
- Data Integration
- Developer Tools
- Open Source
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: VulnerabilityDisclosure
  url: security/phoebe-vulnerability-disclosure.yml
- type: Security
  url: security/phoebe-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/phoebe-domain-security.yml
- type: Website
  url: https://withcoral.com
- type: DeveloperPortal
  url: https://withcoral.com/docs
- type: Documentation
  url: https://withcoral.com/docs
- type: GettingStarted
  url: https://withcoral.com/docs/quickstart
- type: Blog
  url: https://withcoral.com/blog
- type: Pricing
  url: https://withcoral.com/pricing
- type: GitHubOrganization
  url: https://github.com/withcoral
- type: Support
  url: https://withcoral.com/discord
- type: TermsOfService
  url: https://withcoral.com/terms
- type: PrivacyPolicy
  url: https://withcoral.com/privacy
- type: LLMsTxt
  url: llms/phoebe-llms.txt
- type: WellKnown
  url: well-known/phoebe-well-known.yml
- type: SecurityTxt
  url: well-known/phoebe-security.txt
- type: MCPServer
  url: mcp/phoebe-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/phoebe-packages.yml
- type: CLI
  url: cli/phoebe-cli.yml
- type: ChangeLog
  url: changelog/phoebe-changelog.yml
- type: Lifecycle
  url: lifecycle/phoebe-lifecycle.yml
- type: Conventions
  url: conventions/phoebe-conventions.yml
- type: Conformance
  url: conformance/phoebe-conformance.yml
- type: Compliance
  url: conformance/phoebe-conformance.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 17
  pass: local-v1

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