Massive (formerly Polygon.io) · OpenAPI Overlay 1.0.0

API Evangelist conversational phrasing for Massive Com Fx:last:quote API

2 actions 2 updates phrasing extends openapi/massive-com-fx-last-quote-api-openapi.yml
Generated by API Evangelist Written by API Evangelist tooling for Massive (formerly Polygon.io)'s API. It is a proposal applied on top of the contract, not a document Massive (formerly Polygon.io) publishes.
View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-phrasing

Targets 2

$.info
$.paths['/v1/last_quote/currencies/{from}/{to}'].get

OpenAPI Overlay

Raw ↑
# Generated by API Evangelist (build-phrasing.py). Our phrasing, not observed demand.
overlay: 1.0.0
info:
  title: API Evangelist conversational phrasing for Massive Com Fx:last:quote API
  version: 1.0.0
extends: openapi/massive-com-fx-last-quote-api-openapi.yml
actions:
- target: $.info
  update:
    x-apievangelist-phrasing:
      method: generated
      generated: '2026-09-26'
      generator: build-phrasing.py
      label: Generated by API Evangelist
      operations: 1
- target: $.paths['/v1/last_quote/currencies/{from}/{to}'].get
  update:
    x-apievangelist-phrasing:
      intent: Get the latest quote for a currency pair
      effect: read
      questions:
      - What's the current bid and ask for EUR/USD?
      - Can I get the most recent forex quote tick for a currency pair?
      instructions:
      - text: Get the last quote for {from}/{to}.
        slots:
          to: path.to
          from: path.from
      - text: Show the latest bid/ask tick for the {from} to {to} currency pair.
        slots:
          to: path.to
          from: path.from
      method: generated
      generated: '2026-09-26'

Work with this as data

Every overlay here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for openapi overlays

4 MCP tools reach this
  • find_overlaysBrowse and filter every overlay in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This overlay
curl "https://apis.io/api/v1/overlays/massive-com-fx-last-quote-api-phrasing-overlay"
All openapi overlays
curl "https://apis.io/api/v1/overlays?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.