vAST
viaNexus Agentic Service Technology
vAST is the agent-ready access layer for viaNexus financial data. It connects MCP clients, Financial Chat Agent, and SDK workflows to 30+ institutional datasets through one signed credential, with server-side dataset permissions built in.
one platform · every dataset · any agent
Works with leading LLM providers
Gemini
Claude
ChatGPT
About
30+ vendors.
One agent.
Financial agents need more than an API key. They need licensed data, normalized rows, and permissions that hold up across every tool call.
The problem
Agent access breaks in three places.
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Vendor sprawl
Thirty vendor contracts.
News, fundamentals, transcripts, market data, reference data. Every provider has a different API, a different auth, a different invoice. Your agent has to talk to all of them.
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Entitlements
Entitlements at the row level.
User A pays for European market data, user B doesn’t. Same agent, same query, different rows allowed. If the agent sees data the user can’t use, you’re in violation.
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Machine auth
Auth that LLMs understand.
API keys leak, hardcoded tokens expire, OAuth-for-humans doesn’t fit machines. Agents need credentials they can present, refresh, and scope without a human in the loop.
Financial data is fragmented across providers, subscriptions, and auth models. Before an agent can answer safely, it has to know which data exists, which rows a user is allowed to see, and which credential it can present.
What vAST changes
viaNexus becomes the data layer.
viaNexus provides the financial data: bundled NexusCore datasets, premium NexusEdge partner data, and provider access behind one account. vAST is the agent access layer on top, so every client uses the same catalog, auth, and dataset permissions.
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Data provider
Normalized market data, fundamentals, news, transcripts, reference data, and partner datasets.
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Permissions
Software statements and tokens enforce which datasets each agent or user can reach.
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Interfaces
MCP, Financial Chat Agent, and SDK all reach the same allowed data through different calling styles.
Access
Three ways in.
Pick the surface closest to where your agent runs. MCP, Financial Chat Agent, and SDK share the same auth, catalog, and dataset permissions.
Protocol
MCP service
Use MCP if your agent already lives in Claude, Cursor, ChatGPT, or another MCP client.
MCP quickstart →Product
Financial Chat Agent
Use Financial Chat Agent if you want hosted chat with a pk_... token.
Library
Agent SDK
Use SDK if you want to own the agent loop, memory, prompts, model, and infra.
SDK quickstart →Featured demo
Live Market Dashboard & Death Cross Alert
30+ datasets, OpenBB workspace, Paygentic billing, in minutes.
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viaNexus + MCP = The Easy Button for AI
How MCP makes financial data accessible to any AI agent.
Start building.
14-day free trial. No credit card. Connect to 30+ financial datasets through your AI in under two minutes.
Or jump to the MCP quickstart if you already have an account.