Finlight for AI agents
Finlight is a financial news API that searches articles and retrieves them by link, with metadata on each news source. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Finlight.
Search for relevant news
Search financial news articles matching a company or ticker for a market briefing.
Pull an article by link
Retrieve the full article behind a link so it can be summarized for a report.
Read-only news retrieval
Keep article search and retrieval read-only, since the API only reports news and never publishes it.
3 Finlight actions, graded by risk.
Every Finlight action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
3Look things up. Allowed by default.
- finlight.list_sourcesList Sources
- finlight.search_articlesSearch Articles
- finlight.get_article_by_linkGet Article by Link
write
0Create and change things. Allow, or ask the user first.
- No write actions.
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Finlight in three steps.
- 01Your users connect FinlightThey add their Finlight api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “updates” can wait for the user to approve.
- 03Any agent can actYour agent calls Finlight through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('finlight', { read: 'allow', write: 'ask', destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Finlight connects.
Users add their Finlight api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Finlight connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Finlight from any agent.
ClaudeChatGPTCursor
Codex
VS CodeOpenAI Agents SDKClaude Agent SDK
Vercel AI SDK
Mastra
LangGraph
Finlight and Arc0, answered.
Can I use Finlight with Claude, ChatGPT or Cursor?
Yes. Connect Finlight to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Finlight actions you allow.
How do users connect Finlight?
Users add their Finlight api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Finlight actions can my agent take?
3 in total: 3 read, 0 write and 0 destructive. Your policies decide which of them each agent may call.
Can I make my agent read-only in Finlight?
Yes. Allow read actions and deny writes in the Finlight policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call Finlight too?
Yes. The same Finlight connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Finlight into your agent.
Your users connect Finlight once, under your brand. Your agent gets 3 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan