$HEADLESS SYSTEMS
03 / Scorecard / Analytics & Events

Tealium

C
Headless Index
58/100
JAIRF
N/A
Verified
AUG 20, 2026
Methodology v1 · JAIRF v1.0.0

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

Tealium earns Band C in the Analytics & Events category of The Headless Index, with a thesis-fit score of 58/100. Its strongest dimension is MCP and agent posture (13/20); its weakest scored dimension is schema observability (10/20). No public OpenAPI specification was found when Tealium was scored, which limits how far an agent can go without human integration work.

Editorial verdict
Tealium is partially headless and partly UI-led. The Headless Index thesis-fit score of 58/100 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 Tealium lands inside that pattern. On the API surface, the question is whether the API is the product or a layer beneath the dashboard. Tealium exposes a genuine spread of REST surfaces: the Collect HTTP API for ingestion, Visitor Profile and Visitor Privacy for lookups and deletions, iQ Profiles v3 for configuration, SCIM for provisioning. Auth is a 30 minute JWT plus a region-specific host returned at login (us-east-1-platform.tealiumapis.com). 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: The iQ Profiles API v3 reaches further than most tag managers allow: variables, event listeners and JavaScript Code extensions are all creatable, updatable and deletable over HTTP, and SCIM handles user and group provisioning (POST User API, POST Group API). Connector setup, load rules and publishing to environments remain console work. There is no CLI and no Terraform provider.[1] On the MCP and agent-integration axis, which is the fastest-moving criterion in the index: Tealium runs a managed MCP server, but only over the Moments API (docs.tealium.com/server-side/moments-api/managed-mcp-server), and only for reading visitor profile attributes, audiences and badges. Access needs a dedicated key you request from support, which is a poor fit for agent self-service. A2A support is claimed alongside it. Nothing exposes iQ configuration to an agent. That asymmetry is the story here.[2] Event posture closes the loop: an agent that cannot react to state changes is reduced to polling. Tealium moves other people's events well and publishes almost none of its own. Inbound data sources accept webhooks from Braze Currents, Auth0, Intercom and Iterable; the outbound Webhook Connector (docs.tealium.com/server-side-connectors/webhook-connector) posts visitor or event data to any endpoint you template. There is no catalogue of Tealium platform events, no HMAC signature to verify, no documented replay. Net assessment: integrators can build agent flows against Tealium, but the rough edge to plan around is schema observability[3]. 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 intent12/20
scored

Tealium exposes a genuine spread of REST surfaces: the Collect HTTP API for ingestion, Visitor Profile and Visitor Privacy for lookups and deletions, iQ Profiles v3 for configuration, SCIM for provisioning. Auth is a 30 minute JWT plus a region-specific host returned at login (us-east-1-platform.tealiumapis.com). The gap is client libraries; the public org carries tracker SDKs only (Tealium/tealium-swift), nothing for management.

signals (4)
  • +AI review appliedReviewer: Editorial review on 2026-08-19
  • OpenAPI specNot found across 0 probe paths
  • GraphQL endpointNot discovered (0 probes; project-scoped endpoints require a real project ID)
  • +SDKs maintained3 (kotlin, swift); top by stars: Tealium/tealium-android-adobe-visitor-api (1 stars)
cite (1)
  • github.sdks@2026-08-19
Headless operation12/20
scored

The iQ Profiles API v3 reaches further than most tag managers allow: variables, event listeners and JavaScript Code extensions are all creatable, updatable and deletable over HTTP, and SCIM handles user and group provisioning (POST User API, POST Group API). Connector setup, load rules and publishing to environments remain console work. There is no CLI and no Terraform provider.

signals (9)
  • +AI review appliedReviewer: Editorial review on 2026-08-19
  • 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@2026-08-19
MCP & agent posture13/20
scored

Tealium runs a managed MCP server, but only over the Moments API (docs.tealium.com/server-side/moments-api/managed-mcp-server), and only for reading visitor profile attributes, audiences and badges. Access needs a dedicated key you request from support, which is a poor fit for agent self-service. A2A support is claimed alongside it. Nothing exposes iQ configuration to an agent. That asymmetry is the story here.

signals (2)
  • +AI review appliedReviewer: Editorial review on 2026-08-19
  • ·MCP detector statusTimed out during collection (likely GitHub search API rate limit without GITHUB_TOKEN). No verified evidence about MCP presence.
cite (1)
  • ai_review_browser.pages_fetched@2026-08-19
Schema observability10/20
scored

No OpenAPI, no GraphQL, no schema repo. What Tealium does instead is aim the docs at crawlers (docs.tealium.com/llms.txt indexes twelve area files), and appending /index.md to any page returns clean markdown. The iQ Profiles API Objects page describes profile JSON in prose. An agent reads well here but still cannot generate a typed client. The reading path is thoughtful; a spec would have been more useful.

signals (2)
  • +AI review appliedReviewer: Editorial review on 2026-08-19
  • ·Collector statusOpenAPI and GraphQL probes did not record any attempts
cite (1)
  • ai_review_browser.pages_fetched@2026-08-19
Webhooks & events11/20
scored

Tealium moves other people's events well and publishes almost none of its own. Inbound data sources accept webhooks from Braze Currents, Auth0, Intercom and Iterable; the outbound Webhook Connector (docs.tealium.com/server-side-connectors/webhook-connector) posts visitor or event data to any endpoint you template. There is no catalogue of Tealium platform events, no HMAC signature to verify, no documented replay.

signals (2)
  • +AI review appliedReviewer: Editorial review on 2026-08-19
  • ·Webhook docs pageNot reached by crawler within budget (0 pages crawled). Cannot confirm whether vendor offers webhooks.
cite (1)
  • ai_review_browser.pages_fetched@2026-08-19
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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FAQ

Tealium and agent readiness

Is Tealium agent-ready?
Tealium scores Band C on The Headless Index. Its JAIRF rating is not available because no machine-readable spec was scored. Its strongest area for agent use is MCP and agent posture; its weakest is schema observability.
Does Tealium publish an OpenAPI spec?
No published OpenAPI specification was found when Tealium was scored. That caps its JAIRF dimensions and forces agents to rely on documentation or reverse engineering to operate it.
What is Tealium's Headless Index score?
Tealium scores 58/100 on the Headless Index thesis-fit rubric and sits in Band C in the Analytics & Events category. The score weighs API-first design, headless operation, MCP and agent posture, schema observability, and webhooks.