$HEADLESS SYSTEMS
03 / Scorecard / Feature Flags & Config

Eppo

C
Headless Index
40/100
JAIRF
N/A
Verified
MAY 21, 2026
Methodology v1 · JAIRF v1.0.0

Powered by JAIRF v1.0.0 by Jentic · open methodology at /the-headless-index/methodology

Editorial verdict
Eppo is partially headless and partly UI-led. The Headless Index thesis-fit score of 40/100 puts it mid-table on the index, and JAIRF is recorded as N/A for this vendor because no public OpenAPI specification was reachable for the open-source scorer. In practice, vendors at this tier are partly machine-consumable: the core flows are reachable through code but several adjacent surfaces still expect a human at a dashboard, and the rest of this verdict explains where Eppo lands inside that pattern. On the API surface, the question is whether the API is the product or a layer beneath the dashboard. Eppo is experimentation platform with REST API plus SDKs in JavaScript, Node, Python, Go, Ruby, Java, and others. The product is positioned for the data-team-led experimentation use case, with first-class warehouse integration.[1] Schema observability is the related test: can an agent introspect the contract from cold, or does it have to read prose documentation to do so? REST documented at docs.geteppo.com. Schema discoverability is good.[2] An agent can drive parts of this product, but not all of it: integrators should plan for human-in-the-loop checkpoints where the headless surface stops short. On headless operability: Experiments, assignments, metrics, and warehouse syncs are programmable. The Eppo dashboard handles configuration.[3] On the MCP and agent-integration axis, which is the fastest-moving criterion in the index: No first-party Eppo MCP server. The data-team-focused positioning has not yet extended to MCP integration.[4] Event posture closes the loop: an agent that cannot react to state changes is reduced to polling. Eppo webhooks deliver experiment events. Catalog is appropriate for experimentation. Net assessment: integrators can build agent flows against Eppo, but the rough edge to plan around is MCP posture[5]. Expect to wrap missing pieces in bespoke glue or accept human-in-the-loop checkpoints. Workable but requires scaffolding.
Verdict by Headless Index pipeline (auto)
// AI-drafted from the evidence layer. Editorial review pending.
Scores

Scorecard detail

Headless Index · 5 sub-criteria
API-first design intent10/20
scored

Eppo is experimentation platform with REST API plus SDKs in JavaScript, Node, Python, Go, Ruby, Java, and others. The product is positioned for the data-team-led experimentation use case, with first-class warehouse integration.

signals (6)
  • +AI review appliedReviewer: Editorial review on 2026-05-20
  • −OpenAPI specNot found across 0 probe paths
  • ·GraphQL endpointDiscovered at https://www.geteppo.com/graphql, introspection disabled or scoped
  • +SDKs maintained12 (dotnet, go, java, javascript, php, swift, typescript); top by stars: Eppo-exp/js-sdk-common (11 stars)
  • +SDK recency7 of 12 SDK repos pushed within 30 days (most recent SDK commit: 2026-05-12)
  • +npm weekly downloads64.0k across published packages; top: @eppo/js-client-sdk-common @ 64.0k/week
cite (5)
  • openapi.probes_tried@2026-05-19
  • graphql.url@2026-05-19
  • github.sdks@2026-05-19
  • freshness.most_recent_sdk_commit@2026-05-19
  • github.sdks@2026-05-19
Headless operation8/20
scored

Experiments, assignments, metrics, and warehouse syncs are programmable. The Eppo dashboard handles configuration.

signals (9)
  • +AI review appliedReviewer: Editorial review on 2026-05-20
  • −API operations exposedNo OpenAPI spec; operations count unknown
  • ·Docs pages crawled0 pages (crawler: none)
  • ·Auth schemes documentedAuth documentation page not reached by crawler
  • ·Setup / quickstart docsNot reached by crawler
  • ·Billing docsNot reached by crawler
  • ·Teams / org docsNot reached by crawler
  • ·CLI docsNot reached by crawler
  • ·Schema / data model docsNot reached by crawler
cite (1)
  • ai_review_browser.topics_found@2026-05-20
MCP & agent posture4/20
scored

No first-party Eppo MCP server. The data-team-focused positioning has not yet extended to MCP integration.

signals (4)
  • +AI review appliedReviewer: Editorial review on 2026-05-20
  • −Official MCP serverNone found in vendor's GitHub org or the official MCP registry
  • −Community MCP serversNone found
  • +Agent-friendly SDKs5 TS/JS SDKs available; top: node-server-sdk (20/week downloads)
cite (1)
  • ai_review_browser.pages_fetched@2026-05-20
Schema observability14/20
scored

REST documented at docs.geteppo.com. Schema discoverability is good.

signals (3)
  • +AI review appliedReviewer: Editorial review on 2026-05-20
  • −OpenAPINot discovered across 0 standard probe paths
  • ·GraphQL introspectionGraphQL endpoint at https://www.geteppo.com/graphql but introspection is disabled, scoped, or behind authentication
cite (1)
  • ai_review_browser.schema@2026-05-20
Webhooks & events4/20
scored

Eppo webhooks deliver experiment events. Catalog is appropriate for experimentation.

signals (2)
  • +AI review appliedReviewer: Editorial review on 2026-05-20
  • ·Webhook docs pageNot reached by crawler within budget (0 pages crawled). Cannot confirm whether vendor offers webhooks.
cite (1)
  • ai_review_browser.pages_fetched@2026-05-20
JAIRF · 6 dimensions
JAIRF · N/A

This vendor does not publish a public OpenAPI specification. JAIRF cannot be computed. The Headless Index score and editorial verdict carry the readiness assessment.

No public OpenAPI specification discovered during collection

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Band rationale:C band: scores 40-75 range

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