UserGems is a San Francisco-based sales intelligence platform that tracks champion job changes and surfaces buying signals so sales and marketing teams can prioritize outbound and ABM motions. The platform packages 30+ native signals (job changes, contact-level intent, M&A, hiring, web visits), Gem-E AI agents for prospect list building and email personalization, and custom AI scoring trained on 600+ closed-won patterns. UserGems exposes a public REST API at api.usergems.com/v1 that lets customers programmatically add and remove contacts to track for job changes, add and remove target accounts, and honor data-subject deletion requests. That API is deliberately write-only — there are no read or GET endpoints — authenticates with a single company-wide X-Api-Key header, is capped at 20 requests per second with one record per request, and acknowledges enqueueing rather than completion. UserGems also ships a hosted remote MCP server at app.usergems.com/mcp/usergems, in gated early access as of August 2026, that lets agents in Claude or ChatGPT search accounts and prospects, pull signal and score history, run research, draft Gem-E messages, and build and run campaigns including CRM writes, sequence enrollment and ad-audience sync — authorized with OAuth 2.0, dynamic client registration, PKCE S256 and a single mcp:use scope. Native integrations include Salesforce, HubSpot, Microsoft Dynamics, Outreach, Salesloft, Gong Engage, Marketo, LinkedIn Ads, Meta Ads, and Google Ads.
UserGems publishes 4 API contracts indexed on the APIs.io network, including Accounts API, Contacts API, Privacy API, and 1 more. Tagged areas include Sales Intelligence, Outbound, Account Based Marketing, Champion Tracking, and Job Changes.
The UserGems catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 2 Spectral governance rulesets.
UserGems’ developer surface includes authentication, API reference, getting-started guide, developer portal, documentation, signup flow, pricing, and 47 more developer resources.
The questions people put to an LLM, and the jobs they hand an agent, that UserGems's APIs answer — each one linked to the operation that does it.
Generated by API Evangelist
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,
not penalised by it.
The six quality facets above are damped to 75 points between them,
because the conditional facet above carries the other
25. That is why each facet's contribution is shown against a damped
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):
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Documented Reversibility+6 pts — a reversal operation in the contract, graded up when a window is documented too
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
The Kin Score Market layer reads a provider inside its market:
its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted:
not part of the Kin Score or agent readiness.
Registered MCP server and declares compatibility are report only — not weighted.
Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
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.
Hosted remote MCP server that lets an agent in Claude, ChatGPT or any MCP-compatible client work against the customer's own UserGems workspace — searching accounts and prospects...
UserGems ships a hosted, remote MCP server — "UserGems MCP" — that lets an agent build and run GTM campaigns against the customer's own UserGems workspace and CRM from Claude or...
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
aid: usergems
url: https://raw.githubusercontent.com/api-evangelist/usergems/refs/heads/main/apis.yml
name: UserGems
description: UserGems is a San Francisco-based sales intelligence platform that tracks champion job changes and surfaces buying
signals so sales and marketing teams can prioritize outbound and ABM motions. The platform packages 30+ native signals (job
changes, contact-level intent, M&A, hiring, web visits), Gem-E AI agents for prospect list building and email personalization,
and custom AI scoring trained on 600+ closed-won patterns. UserGems exposes a public REST API at api.usergems.com/v1 that
lets customers programmatically add and remove contacts to track for job changes, add and remove target accounts, and honor
data-subject deletion requests. That API is deliberately write-only — there are no read or GET endpoints — authenticates
with a single company-wide X-Api-Key header, is capped at 20 requests per second with one record per request, and acknowledges
enqueueing rather than completion. UserGems also ships a hosted remote MCP server at app.usergems.com/mcp/usergems, in gated
early access as of August 2026, that lets agents in Claude or ChatGPT search accounts and prospects, pull signal and score
history, run research, draft Gem-E messages, and build and run campaigns including CRM writes, sequence enrollment and ad-audience
sync — authorized with OAuth 2.0, dynamic client registration, PKCE S256 and a single mcp:use scope. Native integrations
include Salesforce, HubSpot, Microsoft Dynamics, Outreach, Salesloft, Gong Engage, Marketo, LinkedIn Ads, Meta Ads, and
Google Ads.
tags:
- Sales Intelligence
- Outbound
- Account Based Marketing
- Champion Tracking
- Job Changes
- Buying Signals
- AI Scoring
- Sales Engagement
- CRM
- Revenue Operations
- Go-To-Market
- MCP
- AI Agents
tags_raw:
- Sales Intelligence
- Outbound
- ABM
- Champion Tracking
- Job Changes
- Buying Signals
- AI Scoring
- Sales Engagement
- CRM
- Revenue Operations
- GTM
- MCP
- AI Agents
kind: contract
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: true
label: Hosted service · you call their endpoint
confidence: high
source:
- openapi
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: paid
onboarding: unknown
trial: false
try_now: false
public: false
label: Paid
confidence: high
source:
- plans
- authentication
- scopes
- rate-limits
- security
generated: '2026-11-06'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/usergems.png
access: 3rd-Party
position: Consuming
created: '2026-05-25'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: usergems:usergems-accounts-api
name: UserGems Accounts API
description: Add and remove accounts UserGems should source prospects against.
humanURL: https://app.usergems.com/api/documentation
baseURL: https://api.usergems.com/v1
tags:
- Account
tags_raw:
- Accounts
properties:
- type: OpenAPI
url: openapi/usergems-accounts-api-openapi.yml
- type: Overlay
url: overlays/usergems-accounts-api-overlay.yaml
- type: AgentSkill
url: skills/usergems-manage-target-accounts.md
- type: Documentation
url: https://app.usergems.com/api/documentation
- type: Documentation
url: https://www.usergems.com/product/api
- type: JSONSchema
url: json-schema/usergems-contact-schema.json
- type: JSONSchema
url: json-schema/usergems-account-schema.json
- type: JSONLD
url: json-ld/usergems-context.jsonld
- type: Examples
url: examples/usergems-add-contact-example.json
- type: Examples
url: examples/usergems-add-account-example.json
- type: Examples
url: examples/usergems-privacy-delete-example.json
- type: SpectralRules
url: rules/usergems-rules.yml
- aid: usergems:usergems-contacts-api
name: UserGems Contacts API
description: Add and remove contacts UserGems should track for job changes.
humanURL: https://app.usergems.com/api/documentation
baseURL: https://api.usergems.com/v1
tags:
- Contacts
properties:
- type: OpenAPI
url: openapi/usergems-contacts-api-openapi.yml
- type: Overlay
url: overlays/usergems-contacts-api-overlay.yaml
- type: AgentSkill
url: skills/usergems-track-champion-contacts.md
- type: Documentation
url: https://app.usergems.com/api/documentation
- type: Documentation
url: https://www.usergems.com/product/api
- type: JSONSchema
url: json-schema/usergems-contact-schema.json
- type: JSONSchema
url: json-schema/usergems-account-schema.json
- type: JSONLD
url: json-ld/usergems-context.jsonld
- type: Examples
url: examples/usergems-add-contact-example.json
- type: Examples
url: examples/usergems-add-account-example.json
- type: Examples
url: examples/usergems-privacy-delete-example.json
- type: SpectralRules
url: rules/usergems-rules.yml
- aid: usergems:usergems-privacy-api
name: UserGems Privacy API
description: Honor data-subject deletion requests for tracked contacts.
humanURL: https://app.usergems.com/api/documentation
baseURL: https://api.usergems.com/v1
tags:
- Privacy
properties:
- type: OpenAPI
url: openapi/usergems-privacy-api-openapi.yml
- type: Overlay
url: overlays/usergems-privacy-api-overlay.yaml
- type: AgentSkill
url: skills/usergems-honor-erasure-request.md
- type: Documentation
url: https://app.usergems.com/api/documentation
- type: Documentation
url: https://www.usergems.com/product/api
- type: JSONSchema
url: json-schema/usergems-contact-schema.json
- type: JSONSchema
url: json-schema/usergems-account-schema.json
- type: JSONLD
url: json-ld/usergems-context.jsonld
- type: Examples
url: examples/usergems-add-contact-example.json
- type: Examples
url: examples/usergems-add-account-example.json
- type: Examples
url: examples/usergems-privacy-delete-example.json
- type: SpectralRules
url: rules/usergems-rules.yml
- aid: usergems:usergems-mcp
name: UserGems MCP
description: Hosted remote MCP server that lets an agent in Claude, ChatGPT or any MCP-compatible client work against the
customer's own UserGems workspace — searching accounts and prospects, pulling signal and score history, running account
research, drafting Gem-E messages, and building, editing and running campaigns including CRM writes, sequence enrollment
and ad-audience sync. OAuth 2.0 with dynamic client registration, PKCE S256 and a single mcp:use scope delegating the
signed-in user's own UserGems permissions. In gated early access as of August 2026.
humanURL: https://www.usergems.com/product/mcp
baseURL: https://app.usergems.com/mcp/usergems
tags:
- MCP
- Agents
- Go-To-Market
tags_raw:
- MCP
- Agents
- GTM
properties:
- type: MCPServer
url: mcp/usergems-mcp.yml
- type: ToolCrosswalk
url: mcp/usergems-tool-crosswalk.yml
- type: Documentation
url: https://help.usergems.com/article/mcp-early-access-claude
- type: Documentation
url: https://help.usergems.com/article/mcp-early-access-chatgpt
- type: GettingStarted
url: https://help.usergems.com/article/mcp-early-access-claude
- type: OAuthScopes
url: scopes/usergems-scopes.yml
common:
- type: CapabilityMap
url: capabilities/usergems-capability-edges.yml
name: UserGems Business Capability Map
- type: PostmanWorkspace
url: https://www.postman.com/kinlaneapi/usergems/overview
- type: AgenticAccess
url: agentic-access/usergems-agentic-access.yml
- type: TrustCenter
url: security/usergems-trust-center.yml
- type: VulnerabilityDisclosure
url: security/usergems-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/usergems-domain-security.yml
- type: Authentication
url: authentication/usergems-authentication.yml
- type: MCPServer
url: mcp/usergems-mcp.yml
- type: ToolCrosswalk
url: mcp/usergems-tool-crosswalk.yml
- type: OAuthScopes
url: scopes/usergems-scopes.yml
- type: WellKnown
url: well-known/usergems-well-known.yml
- type: ContentSignal
url: well-known/usergems-robots.txt
- type: LLMsTxt
url: llms/usergems-llms.txt
- type: Packages
url: packages/usergems-packages.yml
- type: Conventions
url: conventions/usergems-conventions.yml
- type: ErrorCatalog
url: errors/usergems-problem-types.yml
- type: Lifecycle
url: lifecycle/usergems-lifecycle.yml
- type: Conformance
url: conformance/usergems-conformance.yml
- type: Compliance
url: https://www.usergems.com/data-security
- type: Security
url: https://www.usergems.com/legal-security/security
- type: DataModel
url: data-model/usergems-data-model.yml
- type: Webhooks
url: asyncapi/usergems-webhooks.yml
- type: AgentSkill
url: skills/_index.yml
- type: Website
url: https://www.usergems.com
- type: DeveloperPortal
url: https://app.usergems.com/api/documentation
- type: APIReference
url: https://app.usergems.com/api/documentation
- type: GettingStarted
url: https://help.usergems.com/article/using-the-usergems-api
- type: Portal
url: https://www.usergems.com/product/overview
- type: Documentation
url: https://app.usergems.com/api/documentation
- type: Documentation
url: https://help.usergems.com/article/using-the-usergems-api
- type: Documentation
url: https://help.usergems.com
- type: Documentation
url: https://help.usergems.com/article/usergems-implementation-guide-salesforce-crm
- type: Documentation
url: https://help.usergems.com/article/usergems-implementation-guide-hubspot-crm
- type: Documentation
url: https://help.usergems.com/article/how-many-salesforce-api-calls-does-usergems-use
- type: Documentation
url: https://help.usergems.com/article/usergems-outreach-configuration
- type: Product
url: https://www.usergems.com/product/api
- type: SignUp
url: https://www.usergems.com/contact
- type: Login
url: https://app.usergems.com/login
- type: Pricing
url: https://www.usergems.com/pricing
- type: Blog
url: https://www.usergems.com/blog
- type: Customers
url: https://www.usergems.com/customers
- type: Careers
url: https://www.usergems.com/careers
- type: Contact
url: https://www.usergems.com/contact
- type: Support
url: mailto:support@usergems.com
- type: PrivacyPolicy
url: https://www.usergems.com/legal-security/privacy-policy
- type: TermsOfService
url: https://www.usergems.com/legal-security/terms
- type: TrustCenter
url: https://trust.usergems.com
- type: LinkedIn
url: https://www.linkedin.com/company/usergems
- type: Twitter
url: https://x.com/usergems
- type: YouTube
url: https://www.youtube.com/@UserGems
- type: GitHubOrganization
url: https://github.com/usergems
- type: Plans
url: plans/usergems-plans-pricing.yml
- type: RateLimits
url: rate-limits/usergems-rate-limits.yml
- type: FinOps
url: finops/usergems-finops.yml
- type: Integrations
data:
- name: Salesforce
category: CRM
- name: HubSpot
category: CRM
- name: Microsoft Dynamics
category: CRM
- name: Outreach
category: Sales Engagement
- name: Salesloft
category: Sales Engagement
- name: Gong Engage
category: Sales Engagement
- name: HubSpot Marketing
category: Marketing Automation
- name: Marketo
category: Marketing Automation
- name: LinkedIn Ads
category: Advertising
- name: Meta Ads
category: Advertising
- name: Google Ads
category: Advertising
- name: Chrome Extension
category: Productivity
- type: Features
data:
- Gem-E AI agents for prospect list building and email personalization
- 30+ native signals (job changes, contact-level intent, hiring, M&A, web visits)
- Custom AI scoring trained on 600+ closed-won patterns
- Intelligent workflows orchestrating ads, outreach, and CRM updates
- Contact-level intent (specific buyers, not just account-level)
- Outbound REST API for contact and account submission with up to 100 custom signal fields per contact
- Privacy delete endpoint for GDPR/CCPA right-to-erasure
- X-Api-Key header authentication
- Asynchronous queue-based processing
- Customer-configurable Salesforce API cap (default 20K calls per 24h per instance)
- Native integrations with Salesforce, HubSpot, Dynamics, Outreach, Salesloft, Gong, Marketo, LinkedIn/Meta/Google Ads
- Chrome extension for in-workflow access
- SOC 2 Type 2, GDPR, and CCPA compliance posture
- Money-back ROI guarantee — $100K spend tied to $100K pipeline
sources:
- https://www.usergems.com
- https://www.usergems.com/product/api
- https://app.usergems.com/api/documentation
- https://help.usergems.com/article/how-many-salesforce-api-calls-does-usergems-use
updated: '2026-05-25'
x-enrichment:
date: '2026-08-13'
status: enriched
artifacts_added: 23
pass: local-v1
maintainers:
- FN: Kin Lane
email: info@apievangelist.com
X: apievangelist
url: https://apievangelist.com
UserGems API — frequently asked questions
Does UserGems have an API?
Yes. APIs.io lists 4 APIs from UserGems, including UserGems Accounts API, UserGems Contacts API and UserGems Privacy API, and 1 more.
Is there an OpenAPI specification for the UserGems API?
Yes. APIs.io indexes 3 OpenAPI specifications for UserGems, each linked for download from this page.
How do I authenticate with the UserGems API?
UserGems documents its authentication (apiKey/oauth2 · 2 schemes). The details are profiled on APIs.io as Usergems Authentication.
How much does the UserGems API cost?
UserGems publishes its prices; its Core plan is $40,000/ year as of 2026-10-28. APIs.io lists 6 pricing plans for UserGems, with each plan's price, limits and inclusions under Pricing on this page.
Does UserGems have an MCP server?
Yes. APIs.io lists 1 MCP server for UserGems: UserGems ships a hosted, remote MCP server — "UserGems MCP" — that lets an agent build and run GTM campaigns against the customer's own UserGems workspace and CRM from Claude or ChatGPT. The endpoint
Is the UserGems API ready for AI agents?
UserGems has a Kin Score of 72.3 out of 100 (exemplar) and an Agent Readiness score of 60.7 (agent-ready), scored by API Evangelist on 2026-11-06.
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