Infinite Audience provides an AI-native platform for identity resolution, data enrichment, audience building, and activation. Its REST APIs enable discovery counts, segment creation, audience management, campaign delivery, file and micro‑batch matching, webhook integration, and billing. The service also includes a remote Model Context Protocol (MCP) server for agents and an Agent‑to‑Agent (A2A) protocol for task automation.
Infinite Audience publishes 18 API contracts indexed on the APIs.io network, including A2A API, Account API, Audiences API, and 15 more. Tagged areas include Company, Identity Resolution, Data Enrichment, Audiences, and Marketing.
The Infinite Audience catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.
Infinite Audience’s developer surface includes getting-started guide, authentication, documentation, API reference, support, engineering blog, and 30 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
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applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it
carries 10 points of the composite. It is scored from the published contracts
themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already
holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in
front of it, and the first time that check is skipped a duplicate record is created.
Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet,
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The six quality facets above are damped to 75 points between them,
because the conditional facet above carries the other
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maximum: raising a quality facet moves the composite by 75% of its nominal
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Agent readiness — checks not met, largest first (exact, from this profile):
Agentic Commerce Well-Known Document+5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
OAuth 2.0 authorization server for confidential integrations and delegated REST, MCP, and A2A clients. Authenticate on behalf of one of your customers via the standard authoriza...
Durable, per-event-filtered webhook-trigger subscriptions (e.g. one per Zap) — distinct from the single implicit URL configured under the Webhooks tag / `/v1/settings/webhook`. ...
Monitor async audience pipeline progress (similarity and propensity subtypes). Poll GET /v1/workflows/{workflow_run_id} or respond to HITL gates via POST /v1/workflows/{workflow...
aid: infiniteaudience-ai
name: Infinite Audience
accessModel:
pricing: enterprise
onboarding: unknown
trial: false
try_now: false
public: false
label: Enterprise
confidence: high
source:
- plans
- authentication
- scopes
- security
generated: '2026-11-06'
method: derived
image: https://infiniteaudience.ai/assets/infinite-audience-logo.png
description: Infinite Audience provides an AI-native platform for identity resolution, data enrichment, audience building,
and activation. Its REST APIs enable discovery counts, segment creation, audience management, campaign delivery, file and
micro‑batch matching, webhook integration, and billing. The service also includes a remote Model Context Protocol (MCP)
server for agents and an Agent‑to‑Agent (A2A) protocol for task automation.
url: https://raw.githubusercontent.com/api-evangelist/infiniteaudience-ai/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-09 (local-v5; was harvest)
specificationVersion: '0.20'
created: '2026-10-09'
modified: '2026-10-09'
tags:
- Company
- Identity Resolution
- Data Enrichment
- Audiences
- Marketing
- MCP
- A2A
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
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url: finops/infiniteaudience-ai-finops.yml
- type: OAuthScopes
url: scopes/infiniteaudience-ai-scopes.yml
- type: IntegrationEdges
url: integrations/infiniteaudience-ai-integration-edges.yml
- type: CapabilityMap
url: capabilities/infiniteaudience-ai-capability-edges.yml
name: Infinite Audience Business Capability Map
- type: Plans
url: plans/infiniteaudience-ai-plans-pricing.yml
- type: AgentSkill
url: skills/_index.yml
- type: AgenticAccess
url: agentic-access/infiniteaudience-ai-agentic-access.yml
- type: Spectral
url: rules/infiniteaudience-ai-rules.yml
- type: JSONLD
url: json-ld/infiniteaudience-ai-context.jsonld
- type: Vocabulary
url: vocabulary/infiniteaudience-ai-vocabulary.yml
- type: Webhooks
url: asyncapi/infiniteaudience-ai-webhooks.yml
- type: DataModel
url: data-model/infiniteaudience-ai-data-model.yml
- type: ErrorCatalog
url: errors/infiniteaudience-ai-problem-types.yml
- type: Conformance
url: conformance/infiniteaudience-ai-conformance.yml
- type: LLMsTxt
url: llms/infiniteaudience-ai-llms.txt
- type: AgentCard
url: a2a/infiniteaudience-ai-a2a.yml
- type: ToolCrosswalk
url: mcp/infiniteaudience-ai-tool-crosswalk.yml
- type: MCPServer
url: mcp/infiniteaudience-ai-mcp.yml
- type: WellKnown
url: well-known/infiniteaudience-ai-well-known.yml
- type: Hosts
url: hosts/infiniteaudience-ai-hosts.yml
- type: Vendors
url: vendors/infiniteaudience-ai-vendors.yml
- type: SDKs
url: packages/infiniteaudience-ai-packages.yml
- type: Packages
url: packages/infiniteaudience-ai-packages.yml
- type: GettingStarted
url: https://dev.infiniteaudience.ai/surfaces/activation
- type: Authentication
url: authentication/infiniteaudience-ai-authentication.yml
- type: DomainSecurity
url: security/infiniteaudience-ai-domain-security.yml
- type: Website
url: https://infiniteaudience.ai
- type: Documentation
url: https://docs.infiniteaudience.ai/agents/a2a/
- type: DeveloperPortal
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- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: GitHubOrganization
url: https://github.com/no-fait
- type: Newsroom
url: https://infiniteaudience.ai/news
- type: StatusPage
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- type: APIReference
url: https://docs.infiniteaudience.ai/api/
- type: Support
url: https://infiniteaudience.ai/contact
- type: Blog
url: https://docs.infiniteaudience.ai/api/
apis:
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name: Infinite Audience MCP Server
description: Remote, OAuth-protected Model Context Protocol server for exploring signals, building segments and running
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humanURL: https://docs.infiniteaudience.ai/agents/mcp/
baseURL: https://mcp.infiniteaudience.ai/mcp
tags:
- MCP
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url: https://docs.infiniteaudience.ai/agents/mcp/
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description: Agent-to-Agent task protocol
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- A2A
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- type: JSONSchema
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- aid: infiniteaudience-ai:infiniteaudience-ai-account-api
name: Infinite Audience Account API
description: Balance, top-up, and subscription management
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Account
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- aid: infiniteaudience-ai:infiniteaudience-ai-audiences-api
name: Infinite Audience Audiences API
description: Build, store, and manage named audience definitions
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Audiences
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- aid: infiniteaudience-ai:infiniteaudience-ai-auth-api
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description: Token exchange
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- type: JSONSchema
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- aid: infiniteaudience-ai:infiniteaudience-ai-campaigns-api
name: Infinite Audience Campaigns API
description: Named workspaces that group related audiences and deliveries under a single context
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Campaigns
properties:
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url: openapi/infiniteaudience-ai-campaigns-api-openapi.yml
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- aid: infiniteaudience-ai:infiniteaudience-ai-deliveries-api
name: Infinite Audience Deliveries API
description: Org-wide delivery history and status
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Deliveries
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-deliveries-api-openapi.yml
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- type: JSONSchema
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- aid: infiniteaudience-ai:infiniteaudience-ai-discovery-api
name: Infinite Audience Discovery API
description: Audience count and lookup (exploration)
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Discovery
properties:
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- type: Documentation
url: https://docs.infiniteaudience.ai/
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-enrichment-api
name: Infinite Audience Enrichment API
description: Attribute catalog, propensity models, synchronous micro-batch matching, and async file-based identity resolution
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Data Enrichment
tags_raw:
- Enrichment
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-enrichment-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-integrations-api
name: Infinite Audience Integrations API
description: The Integrations API from Infinite Audience — 3 operation(s) for integrations.
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Integration
tags_raw:
- Integrations
properties:
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url: openapi/infiniteaudience-ai-integrations-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-delivery-object-schema.json
- type: JSONSchema
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url: json-schema/infiniteaudience-ai-audience-refresh-result-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-mcp-api
name: Infinite Audience MCP API
description: Model Context Protocol session management
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- MCP
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-mcp-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
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- type: JSONSchema
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- aid: infiniteaudience-ai:infiniteaudience-ai-oauth-api
name: Infinite Audience OAuth API
description: OAuth 2.0 authorization server for confidential integrations and delegated REST, MCP, and A2A clients. Authenticate
on behalf of one of your customers via the standard authorization-code flow with PKCE or the A2A device authorization
flow, then use the resulting resource-bound access token.
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- OAuth
- Authentication
tags_raw:
- OAuth
- Authentication
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-oauth-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-delivery-object-schema.json
- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-refresh-result-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-partnerships-api
name: Infinite Audience Partnerships API
description: Retained activity and reusable results produced through connected partners
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Partnerships
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-partnerships-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-delivery-object-schema.json
- type: JSONSchema
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- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-segments-api
name: Infinite Audience Segments API
description: Save and manage reusable filter definitions
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Segments
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-segments-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
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- type: JSONSchema
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- aid: infiniteaudience-ai:infiniteaudience-ai-settings-api
name: Infinite Audience Settings API
description: Self-service API keys and org configuration
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Settings
properties:
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url: openapi/infiniteaudience-ai-settings-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
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- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-refresh-result-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-triggers-api
name: Infinite Audience Triggers API
description: Durable, per-event-filtered webhook-trigger subscriptions (e.g. one per Zap) — distinct from the single implicit
URL configured under the Webhooks tag / `/v1/settings/webhook`. Delivery is retried with exponential backoff and dead-lettered
after repeated failures. An OAuth-authenticated caller manages only the subscriptions created by its own connection; an
API-key/session caller with 'account' scope manages every subscription in the org.
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Triggers
properties:
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url: openapi/infiniteaudience-ai-triggers-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-object-schema.json
- type: JSONSchema
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- type: JSONSchema
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- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-refresh-result-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-webhooks-api
name: Infinite Audience Webhooks API
description: '**Outbound webhook notifications** — the platform POSTs to your endpoint when async operations finish.
**Events fired:**
| Event | Trigger | |---|---| | `segment.ready` | Async segment build succeeded (matched, similarity, propensity) | |
`segment.failed` | Async segment build failed | | `delivery.completed` | File export/download ready | | `delivery.failed`
| File export/download failed |
`integration.enrichment.blocked` fires when a run is refused on billing grounds — the account''s budget ceiling or balance
would be exceeded — and is delivered org-wide like the events above.
OAuth partnerships may additionally subscribe their own grant to `integration.enrichment.prepared`, `integration.enrichment.failed`,
`integration.file.ready`, and `integration.file.failed`. Those callbacks are delivered only to the owning grant''s subscription
and never to the org-wide webhook.
**URL precedence** — per-request `webhook_url` > org-configured URL (Settings) > no dispatch. If an individual API request
includes `webhook_url`, that URL is used for that call only; the org-level URL is not called. Omitting `webhook_url` on
a request falls back to the org URL.
**Payload shape** — every dispatch (org-configured URL, per-request `webhook_url`, and durable subscriptions alike) sends
the same canonical envelope: `{id, type, created_at, api_version, org_id, subject, data, links}`. `type` is the event
name (e.g. `segment.ready`); `subject` identifies what the event is about (`{kind, id, name}`); `data` carries `status`
plus event-specific fields — see each event below for its exact shape.
**Signing** — every outbound dispatch is signed. The signing secret is platform-generated — you never supply one — and
shown to you exactly once: in the response of `PUT /v1/settings/webhook` (the first time a webhook is configured) or `POST
/v1/settings/webhook/secret` (rotate), or in the response of `POST /v1/webhook-subscriptions` for a durable subscription.
Verifying is optional; every dispatch includes: ``` X-IA-Timestamp: <unix-seconds> X-IA-Signature: v1=<hmac-hex> ``` computed
as `HMAC-SHA256(secret, "{timestamp}.{raw-request-body}")`. To verify: reject if `timestamp` is more than 300 seconds
old, then recompute the HMAC over the exact raw request body bytes and compare with `crypto.timingSafeEqual` (or equivalent)
— never compare against a re-serialized/re-parsed body, since re-serialization is not guaranteed to produce identical
bytes.'
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Webhook
tags_raw:
- Webhooks
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-webhooks-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-delivery-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-file-match-job-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-refresh-result-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
- aid: infiniteaudience-ai:infiniteaudience-ai-workflows-api
name: Infinite Audience Workflows API
description: Monitor async audience pipeline progress (similarity and propensity subtypes). Poll GET /v1/workflows/{workflow_run_id}
or respond to HITL gates via POST /v1/workflows/{workflow_run_id}/resume.
humanURL: https://docs.infiniteaudience.ai/api/
baseURL: https://api.infiniteaudience.ai
tags:
- Workflows
properties:
- type: OpenAPI
url: openapi/infiniteaudience-ai-workflows-api-openapi.yml
- type: Documentation
url: https://docs.infiniteaudience.ai/
- type: JSONSchema
url: json-schema/infiniteaudience-ai-segment-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-delivery-object-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-file-match-job-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-audience-refresh-result-schema.json
- type: JSONSchema
url: json-schema/infiniteaudience-ai-campaign-schema.json
x-submission-notes: 'A2A agent; customer-data enrichment, identity resolution, audience activation | Kin approved listing
2026-10-09 (case-by-case: Real A2A agent, but its product is identity resolution / consumer data enrichment (data-broker
territory) and the named )'
x-submission-probe: root 200; agent-card.json 200 JSON; /openapi-public.yaml 404 (named spec missing); invented path 404
x-submitted-by: chris.calenda@nofait.com (apis.io/add, 2026-10-09)
x-enrichment:
date: '2026-11-02'
status: nochange
artifacts_added: 0
pass: modular-v1
engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss
Infinite Audience API — frequently asked questions
Does Infinite Audience have an API?
Yes. APIs.io lists 18 APIs from Infinite Audience, including Infinite Audience MCP Server, Infinite Audience A2A API and Infinite Audience Account API, and 15 more.
Is there an OpenAPI specification for the Infinite Audience API?
Yes. APIs.io indexes 17 OpenAPI specifications for Infinite Audience, each linked for download from this page.
How do I authenticate with the Infinite Audience API?
Infinite Audience documents its authentication (2 schemes). The details are profiled on APIs.io as Infiniteaudience Ai Authentication.
How much does the Infinite Audience API cost?
APIs.io lists 1 pricing plan for Infinite Audience, with each plan's price, limits and inclusions under Pricing on this page.
Does Infinite Audience have an MCP server?
Yes. APIs.io lists 1 MCP server for Infinite Audience: Remote MCP server at mcp.infiniteaudience.ai requiring OAuth; 54 tools listed.
Is the Infinite Audience API ready for AI agents?
Infinite Audience has a Kin Score of 45.9 out of 100 (developing) and an Agent Readiness score of 68.0 (agent-ready), scored by API Evangelist on 2026-11-06.
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