Who it is for
Professional finance teams and data engineers working under a viaNexus licence.
Licensed institutional market data through the viaNexus marketplace
Overview
viaNexus operates a marketplace for licensed financial data, reselling both its own datasets and those of partner providers under one contract and one interface. The material spans real time and delayed pricing, global news, fundamentals, regulatory filings, reference data and alternative datasets, normalised into consistent shapes before it is returned. The pitch is aimed at professional finance teams: entitlements are enforced per agent, so what a given connection can reach is set by the licence rather than by instructions in a prompt. Six tools are declared, a compact number next to the breadth of the catalogue, and credentials are required at the endpoint.
Professional finance teams and data engineers working under a viaNexus licence.
viaNexus gates tools/list behind authentication, consistent with entitlement checks that differ by subscriber, and the six published tools go undescribed here as a result.
Availability
viaNexus vAST is listed in the Claude connectors directory only. viaNexus has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one.
Claude listing
viaNexus vAST publishes 6 tools to Claude. That is a mid-sized surface: 28.1% of the 1,253 Claude-listed connectors expose fewer.
The median Claude-listed connector filed under Finance publishes 12, so this one sits 6 tools below its bucket's median, 120th of 159.
It falls in the 4-6 tools band, which holds 16.2% of the Claude directory.
viaNexus vAST publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
https://vast.blueskyapi.com/vianexus/mcp viaNexus vAST carries partner verification in the Claude directory, which 474 of 1,253 listings do (37.8%). That is a review step past self-publishing, not an Anthropic-built server.
In the publisher's words
viaNexus MCP connects to the viaNexus marketplace that includes licensed, institutional-grade financial data — including proprietary and premium partner data including real-time and delayed prices, global news, fundamentals, filings, reference data, and alternative datasets. Whether partner or proprietary data, pre-normalized data sets reduces unnecessary reasoning delivering cleaner more reliable data faster. Designed for professional finance and serious builders, viaNexus delivers high-performance APIs, granular access controls, and agent-level entitlements—so your workflows are fast, compliant, and grounded by architecture, not prompt engineering.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
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This is an independent catalogue entry compiled by Node8 from viaNexus vAST's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with viaNexus, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.