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Polygon for AI agents

Polygon.io provides real-time and historical market data for stocks, options, forex, and cryptocurrencies. Traders and analysts use it to build financial dashboards and models. 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.

Connect PolygonSee the 90 actions ↓
AnalyticsAPI keyMCP + RESTpolygon.io
AUDIT LOG · POLYGONPOLICY: acme-support
09:41:07 · claude · u_8f2read
polygon.get_ema
Get Exponential Moving Average✓ allowed · 212ms
09:41:08 · claude · u_8f2read
polygon.get_rsi
Get RSI✓ allowed · 164ms
09:41:09 · claude · u_8f2write
polygon.get10_k_sections
Get 10-K Filing Sections✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
polygon.get_open_close
Get Stock Open/Close✕ blocked · policy: deny
EVERY POLYGON CALL, ON THE RECORD
01 · USE CASES

What agents do in Polygon.

01

Get historical price aggregates

Pull daily price bars for a ticker to build a historical price chart.

02

Check a company's SEC filing

Look up a company's 10-K filing sections for research read-only, without any trading action.

03

Get real-time forex conversion

Fetch a real-time currency conversion rate for a forex pair before quoting a price.

02 · ACTIONS

90 Polygon actions, graded by risk.

Every Polygon action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

82

Look things up. Allowed by default.

  • polygon.get_ema
    Get Exponential Moving Average
  • polygon.get_rsi
    Get RSI
  • polygon.get_sma
    Get Simple Moving Average
  • polygon.get_macd
    Get MACD
  • polygon.get_news
    Get News
  • polygon.get_filing
    Get SEC Filing
  • polygon.get_splits
    Get Stock Splits
  • polygon.get_ipo_data
    Get IPO Data
  • polygon.get_dividends
    Get Dividends
  • polygon.get_forex_ema
    Get Forex EMA
  • polygon.get_forex_rsi
    Get Forex RSI
  • polygon.get_forex_sma
    Get Forex SMA
  • polygon.get_aggregates
    Get Aggregates
  • polygon.get_crypto_ema
    Get Crypto EMA
  • polygon.get_crypto_rsi
    Get Crypto RSI
  • polygon.get_crypto_sma
    Get Crypto SMA
+ 66 MORE

write

3

Create and change things. Allow, or ask the user first.

  • polygon.get10_k_sections
    Get 10-K Filing Sections
  • polygon.last_quote_for_a_symbol
    Last Quote for a Symbol
  • polygon.last_trade_for_a_currency_pair
    Last Trade for a Currency Pair

destructive

5

Delete, cancel or archive. Ask first, or deny outright.

  • polygon.get_open_close
    Get Stock Open/Close
  • polygon.get_previous_close
    Get Previous Close
  • polygon.get_forex_prev_close
    Get Forex Previous Close
  • polygon.get_crypto_open_close
    Get Crypto Open/Close
  • polygon.get_crypto_prev_close
    Get Crypto Previous Close
03 · HOW IT WORKS

Polygon in three steps.

  1. 01Your users connect PolygonThey add their Polygon api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “get 10-K Filing Sections” can wait for the user, and “get Stock Open/Close” can be denied outright.
  3. 03Any agent can actYour agent calls Polygon through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
POLICY.TS
await arc0.policies.set('polygon', {
  read: 'allow',
  write: 'ask',        // get10_k_sections
  destructive: 'deny',  // get_open_close
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2
04 · AUTH AND DATA

How Polygon connects.

Users add their Polygon 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 Polygon 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
05 · WORKS WITH

Use Polygon from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
06 · RELATED

More analytics apps.

Gong58 actionsSerpApi59 actionsPeople Data Labs27 actionsPostHog507 actions21risk8 actionsAkta19 actionsAlpha Vantage56 actionsAmplitude54 actions
ALL ANALYTICS APPS →
07 · FAQ

Polygon and Arc0, answered.

Q01

Can I use Polygon with Claude, ChatGPT or Cursor?

Yes. Connect Polygon 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 Polygon actions you allow.

Q02

How do users connect Polygon?

Users add their Polygon 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.

Q03

Which Polygon actions can my agent take?

90 in total: 82 read, 3 write and 5 destructive, such as “get 10-K Filing Sections”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Polygon?

Yes. Actions like “get Stock Open/Close” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Polygon too?

Yes. The same Polygon connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Polygon into your agent.

Your users connect Polygon once, under your brand. Your agent gets 90 actions behind your policies, with every call on the record.

Connect PolygonBrowse all apps →

Free to build · MCP + REST · Audit log on every plan