aid: core10 name: Core10 description: 'Core10, Inc. is a U.S.-based fintech software development and API integration firm founded in 2016 by Lee Farabaugh and Jeff Martin, headquartered in Franklin, Tennessee with delivery centers in Martin, Tennessee and Huntington, West Virginia, built on a domestic-outsourcing model it trademarked as Hereshore(R). Core10 wrote custom software, core-banking integrations and API layers for community banks, credit unions and fintechs, and acquired Accrue Technologies in 2021 to add a Salesforce-based digital lending, account opening and treasury onboarding platform. In January 2024 it spun its implementation practice out as Monarch, and the Core10 brand has since been retired: core10.io now 301-redirects to monarchfts.com, where Monarch operates as an Intapp DealCloud implementation, configuration and managed-services consultancy for private capital firms, while the Accrue platform trades independently at getaccrue.com under its own leadership. Core10 built API integrations for other companies for nearly a decade but never published a developer program, public API, SDK or machine-readable contract of its own, and as of 2026-08-11 neither successor brand does either.' image: https://monarchfts.com/wp-content/uploads/cropped-monarch-favicon-192x192.webp url: https://raw.githubusercontent.com/api-evangelist/core10/refs/heads/main/apis.yml x-type: company x-source: harvest:secondary-market x-tier: profile x-tier-reason: no-api-surface x-successor: - name: Monarch url: https://monarchfts.com/ relationship: rebrand note: core10.io 301-redirects here; Core10 co-founder Lee Farabaugh is Monarch CEO. - name: Accrue url: https://getaccrue.com/ relationship: product-line note: Accrue Technologies, acquired by Core10 in 2021, now trades under its own brand. specificationVersion: '0.23' created: '2026-08-11' modified: '2026-08-11' tags: - Company - Fintech - Financial Services - Banking - API Integration - Software Development - Digital Lending - Account Opening - Salesforce - Consulting - Professional Services - Private Capital - Tennessee apis: [] maintainers: - FN: Kin Lane email: kin@apievangelist.com - FN: APIs.json email: info@apis.io common: - type: Website url: https://monarchfts.com/ - type: About url: https://monarchfts.com/about/ - type: Contact url: https://monarchfts.com/contact/ - type: Careers url: https://monarchfts.com/about#careers - type: Resources url: https://monarchfts.com/resources/ - type: Industries url: https://monarchfts.com/industries/ - type: TermsOfService url: https://monarchfts.com/terms-and-conditions/ - type: PrivacyPolicy url: https://monarchfts.com/privacy-policy/ - type: LinkedIn url: https://www.linkedin.com/company/monarch-psg/ - type: Blog url: https://blog.core10.io/ - type: BlogFeeds url: https://blog.core10.io/rss.xml - type: Product url: https://getaccrue.com/ - type: DomainSecurity url: security/core10-domain-security.yml - type: LLMsTxt url: llms/core10-llms.txt - type: Plans url: plans/core10-plans-pricing.yml - type: RateLimits url: rate-limits/core10-rate-limits.yml x-enrichment: date: '2026-08-11' status: minimal artifacts_added: 6 pass: local-v1 x-coverage: state: none reason: defunct detail: >- The Core10 brand is retired — core10.io 301-redirects to monarchfts.com, where the company now trades as Monarch, an Intapp DealCloud consultancy, while the Accrue platform it acquired trades separately at getaccrue.com; Core10 sold API integration work for a decade and never published an API, a developer portal or a spec of its own, and neither successor does either. evidence: - url: https://core10.io/ status: 301 - url: https://monarchfts.com/openapi.json status: 404 - url: https://monarchfts.com/llms.txt status: 404 - url: https://monarchfts.com/.well-known/agent-card.json status: 404 - url: https://getaccrue.com/developers status: 404 - url: https://api.getaccrue.com/openapi.json status: 404 - url: https://api.github.com/orgs/core10 status: 404 checked: '2026-08-11'