Annalist

Signed data for AI agents, paid per call over x402: which stores take agent checkout, checks of x402 services (probed daily, with on-chain payer counts and some paid tests) and MCP servers, dependencies, Hyperliquid.

Annalist publishes 26 API contracts indexed on the APIs.io network, including Accuracy API, AI API, APIs API, and 23 more. Tagged areas include Company, Artificial Intelligence, Data, Payments, and Blockchain.

The Annalist catalog on APIs.io includes 1 Spectral governance ruleset.

Annalist’s developer surface includes documentation, API reference, and 17 more developer resources.

🌐 Visit website📡 Profile data on GitHub
25.1/100 emerging Agent 30/100 agent ready Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →
AccessOpen
1 published contract 1 MCP Servers 1 Agent Skills
CompanyArtificial IntelligenceDataPaymentsBlockchain

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0
Composite quality — 25.1/100 · emerging
Contract Quality 9.3 / 21
Developer Ergonomics 3.9 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.6 / 11
Contract Governance 2.2 / 10
Discoverability 5.5 / 9
Regulatory Posture 2.6 / 15
Agent readiness — 30/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 8 / 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
Pagination 5 / 5
Distinct Operations 3 / 3
MCP Tool Quality 6 / 6
Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
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.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Show this score on your site. Kin Score badge preview for Annalist It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/annalist-dev/"><img src="https://apis.io/badge/annalist-dev/card.svg" alt="Annalist on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
  • Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
  • 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)
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
  • Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
  • Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
  • Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
5 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
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 the provider profile at artifacts.apis.io/annalist-dev/apis.yml: open an issue on github.com/api-evangelist/annalist-dev to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

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.

Agent2Agent
measured — observed by APIs.io (flavored)
Model Context Protocol (MCP)
measured — observed by APIs.io (documented)
OpenAPI
measured — observed by APIs.io (published)

APIs 26

Individual APIs this provider publishes, each with its own machine-readable definition.

Annalist Accuracy API

The Accuracy API from Annalist — 1 operation(s) for accuracy.

Annalist AI API

The ai API from Annalist — 3 operation(s) for ai.

Annalist APIs API

The Apis API from Annalist — 3 operation(s) for apis.

Annalist Baserates API

The Baserates API from Annalist — 1 operation(s) for baserates.

Annalist Catalog API

The Catalog API from Annalist — 1 operation(s) for catalog.

Annalist Checks API

The checks API from Annalist — 4 operation(s) for checks.

Annalist Commerce API

The commerce API from Annalist — 1 operation(s) for commerce.

Annalist Crowd API

The crowd API from Annalist — 5 operation(s) for crowd.

Annalist Deps API

The deps API from Annalist — 1 operation(s) for deps.

Annalist Economy API

The Economy API from Annalist — 1 operation(s) for economy.

Annalist Hip3 API

The hip3 API from Annalist — 2 operation(s) for hip3.

Annalist Liq API

The liq API from Annalist — 2 operation(s) for liq.

Annalist MCP API

The mcp API from Annalist — 3 operation(s) for mcp.

Annalist Outcomes API

The outcomes API from Annalist — 2 operation(s) for outcomes.

Annalist Packages API

The packages API from Annalist — 2 operation(s) for packages.

Annalist Perp API

The perp API from Annalist — 1 operation(s) for perp.

Annalist Prices API

The prices API from Annalist — 2 operation(s) for prices.

Annalist Quote API

The Quote API from Annalist — 1 operation(s) for quote.

Annalist Registry API

The Registry API from Annalist — 1 operation(s) for registry.

Annalist Report API

The Report API from Annalist — 1 operation(s) for report.

Annalist Sample API

The Sample API from Annalist — 1 operation(s) for sample.

Annalist Smart API

The smart API from Annalist — 2 operation(s) for smart.

Annalist Status API

The Status API from Annalist — 1 operation(s) for status.

Annalist Vaults API

The vaults API from Annalist — 1 operation(s) for vaults.

Annalist Verify API

The Verify API from Annalist — 3 operation(s) for verify.

Annalist Web API

The web API from Annalist — 2 operation(s) for web.

Scroll for all 26

MCP Servers 1

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

Annalist MCP Server

Remote MCP server at api.annalist.dev.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

crowd-perp

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Annalist Dev Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Annalist Dev Rate Limits

0 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Annalist API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Annalist Dev Authentication

0 schemes

SECURITY

Annalist Dev Domain Security

TLSv1.3

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Annalist Dev Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Annalist Dev Agentic Access

96 operations

96 operations · 0 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 WellKnown
WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 Vocabulary
Vocabulary
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk
ToolCrosswalk
 GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Other 3

Properties that don't map to a standard resource type

AgentCard
AgentCard
 Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: annalist-dev
name: Annalist
description: 'Signed data for AI agents, paid per call over x402: which stores take agent checkout, checks of x402 services
  (probed daily, with on-chain payer counts and some paid tests) and MCP servers, dependencies, Hyperliquid.'
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-02'
  method: derived
image: https://api.annalist.dev/v1/verify/badge.svg
url: https://artifacts.apis.io/annalist-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Company
- Artificial Intelligence
- Data
- Payments
- Blockchain
tags_raw:
- Company
- AI
- Data
- Payments
- Blockchain
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/annalist-dev-agentic-access.yml
- type: Spectral
  url: rules/annalist-dev-rules.yml
- type: Vocabulary
  url: vocabulary/annalist-dev-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/annalist-dev-conventions.yml
- type: ErrorCatalog
  url: errors/annalist-dev-problem-types.yml
- type: Conformance
  url: conformance/annalist-dev-conformance.yml
- type: LLMsTxt
  url: llms/annalist-dev-llms.txt
- type: AgentCard
  url: a2a/annalist-dev-a2a.yml
- type: ToolCrosswalk
  url: mcp/annalist-dev-tool-crosswalk.yml
- type: MCPServer
  url: mcp/annalist-dev-mcp.yml
- type: WellKnown
  url: well-known/annalist-dev-well-known.yml
- type: Hosts
  url: hosts/annalist-dev-hosts.yml
- type: Vendors
  url: vendors/annalist-dev-vendors.yml
- type: Documentation
  url: https://annalist.dev/mcp/ai.auteng/docs
- type: DomainSecurity
  url: security/annalist-dev-domain-security.yml
- type: Website
  url: https://annalist.dev/
- type: APIReference
  url: https://api.annalist.dev/openapi.json
- type: GitHubOrganization
  url: https://github.com/ryanroskowski
apis:
- aid: annalist-dev:annalist-dev-accuracy-api
  name: Annalist Accuracy API
  description: The Accuracy API from Annalist — 1 operation(s) for accuracy.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Accuracy
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-accuracy-api-openapi.yml
- aid: annalist-dev:annalist-dev-ai-api
  name: Annalist AI API
  description: The ai API from Annalist — 3 operation(s) for ai.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Artificial Intelligence
  tags_raw:
  - ai
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-ai-api-openapi.yml
- aid: annalist-dev:annalist-dev-apis-api
  name: Annalist APIs API
  description: The Apis API from Annalist — 3 operation(s) for apis.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags: []
  tags_raw:
  - Apis
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-apis-api-openapi.yml
- aid: annalist-dev:annalist-dev-baserates-api
  name: Annalist Baserates API
  description: The Baserates API from Annalist — 1 operation(s) for baserates.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Baserates
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-baserates-api-openapi.yml
- aid: annalist-dev:annalist-dev-catalog-api
  name: Annalist Catalog API
  description: The Catalog API from Annalist — 1 operation(s) for catalog.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-catalog-api-openapi.yml
- aid: annalist-dev:annalist-dev-checks-api
  name: Annalist Checks API
  description: The checks API from Annalist — 4 operation(s) for checks.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Checks
  tags_raw:
  - checks
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-checks-api-openapi.yml
- aid: annalist-dev:annalist-dev-commerce-api
  name: Annalist Commerce API
  description: The commerce API from Annalist — 1 operation(s) for commerce.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Commerce
  tags_raw:
  - commerce
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-commerce-api-openapi.yml
- aid: annalist-dev:annalist-dev-crowd-api
  name: Annalist Crowd API
  description: The crowd API from Annalist — 5 operation(s) for crowd.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - crowd
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-crowd-api-openapi.yml
- aid: annalist-dev:annalist-dev-deps-api
  name: Annalist Deps API
  description: The deps API from Annalist — 1 operation(s) for deps.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - deps
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-deps-api-openapi.yml
- aid: annalist-dev:annalist-dev-economy-api
  name: Annalist Economy API
  description: The Economy API from Annalist — 1 operation(s) for economy.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Economy
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-economy-api-openapi.yml
- aid: annalist-dev:annalist-dev-hip3-api
  name: Annalist Hip3 API
  description: The hip3 API from Annalist — 2 operation(s) for hip3.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - HIP-3
  tags_raw:
  - hip3
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-hip3-api-openapi.yml
- aid: annalist-dev:annalist-dev-liq-api
  name: Annalist Liq API
  description: The liq API from Annalist — 2 operation(s) for liq.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - liq
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-liq-api-openapi.yml
- aid: annalist-dev:annalist-dev-mcp-api
  name: Annalist MCP API
  description: The mcp API from Annalist — 3 operation(s) for mcp.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - MCP
  tags_raw:
  - mcp
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-mcp-api-openapi.yml
- aid: annalist-dev:annalist-dev-outcomes-api
  name: Annalist Outcomes API
  description: The outcomes API from Annalist — 2 operation(s) for outcomes.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Outcomes
  tags_raw:
  - outcomes
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-outcomes-api-openapi.yml
- aid: annalist-dev:annalist-dev-packages-api
  name: Annalist Packages API
  description: The packages API from Annalist — 2 operation(s) for packages.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Packages
  tags_raw:
  - packages
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-packages-api-openapi.yml
- aid: annalist-dev:annalist-dev-perp-api
  name: Annalist Perp API
  description: The perp API from Annalist — 1 operation(s) for perp.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - perp
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-perp-api-openapi.yml
- aid: annalist-dev:annalist-dev-prices-api
  name: Annalist Prices API
  description: The prices API from Annalist — 2 operation(s) for prices.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Prices
  tags_raw:
  - prices
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-prices-api-openapi.yml
- aid: annalist-dev:annalist-dev-quote-api
  name: Annalist Quote API
  description: The Quote API from Annalist — 1 operation(s) for quote.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Quotes
  tags_raw:
  - Quote
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-quote-api-openapi.yml
- aid: annalist-dev:annalist-dev-registry-api
  name: Annalist Registry API
  description: The Registry API from Annalist — 1 operation(s) for registry.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Registry
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-registry-api-openapi.yml
- aid: annalist-dev:annalist-dev-report-api
  name: Annalist Report API
  description: The Report API from Annalist — 1 operation(s) for report.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Report
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-report-api-openapi.yml
- aid: annalist-dev:annalist-dev-sample-api
  name: Annalist Sample API
  description: The Sample API from Annalist — 1 operation(s) for sample.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Sample
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-sample-api-openapi.yml
- aid: annalist-dev:annalist-dev-smart-api
  name: Annalist Smart API
  description: The smart API from Annalist — 2 operation(s) for smart.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - SMART
  tags_raw:
  - smart
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-smart-api-openapi.yml
- aid: annalist-dev:annalist-dev-status-api
  name: Annalist Status API
  description: The Status API from Annalist — 1 operation(s) for status.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-status-api-openapi.yml
- aid: annalist-dev:annalist-dev-vaults-api
  name: Annalist Vaults API
  description: The vaults API from Annalist — 1 operation(s) for vaults.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Vault
  tags_raw:
  - vaults
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-vaults-api-openapi.yml
- aid: annalist-dev:annalist-dev-verify-api
  name: Annalist Verify API
  description: The Verify API from Annalist — 3 operation(s) for verify.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Verify
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-verify-api-openapi.yml
- aid: annalist-dev:annalist-dev-web-api
  name: Annalist Web API
  description: The web API from Annalist — 2 operation(s) for web.
  humanURL: https://annalist.dev/mcp/ai.auteng/docs
  baseURL: https://api.annalist.dev
  tags:
  - Web
  tags_raw:
  - web
  properties:
  - type: OpenAPI
    url: openapi/annalist-dev-web-api-openapi.yml
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 35
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Annalist API — frequently asked questions

Does Annalist have an API?

Yes. APIs.io lists 26 APIs from Annalist, including Annalist Accuracy API, Annalist AI API and Annalist APIs API, and 23 more.

Is there an OpenAPI specification for the Annalist API?

Yes. APIs.io indexes 26 OpenAPI specifications for Annalist, each linked for download from this page.

How do I authenticate with the Annalist API?

Annalist documents its authentication (0 schemes). The details are profiled on APIs.io as Annalist Dev Authentication.

Does Annalist have an MCP server?

Yes. APIs.io lists 1 MCP server for Annalist: Remote MCP server at api.annalist.dev.

Is the Annalist API ready for AI agents?

Annalist has a Kin Score of 25.1 out of 100 (emerging) and an Agent Readiness score of 30.1 (agent-ready), scored by API Evangelist on 2026-11-02.

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This provider 
curl "https://apis.io/api/v1/providers/annalist-dev"
All providers 
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose 
curl "https://apis.io/api/v1/providers/annalist-dev/operations?limit=25"
How their score was established 
curl "https://apis.io/api/v1/providers/annalist-dev/evidence"

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