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Global air quality measurements from thousands of monitoring stations.
by Lex Whiting
Method overrides
get_latestGet Latest3¢get_locationsGet Locations3¢get_measurementsGet Measurements3¢2. Get your API key — After purchasing, go to your Consumer Dashboard to generate an API key.
3. Call the tool — The developer hosts this tool on their own server. Use your API key in the x-api-key header when calling their endpoint. SettleGrid handles metering and billing automatically.
# Replace with the developer's actual tool endpoint
curl -X POST https://developer-tool-server.com/api/openaq \
-H "x-api-key: sg_live_your_key_here" \
-H "Content-Type: application/json" \
-d '{"query": "your input here"}'Purchases aren't available until the maintainer claims this listing.
Claim this listing →Verified User
March 25, 2026
Exactly what I needed. Clean API, good docs.
No changelog entries yet.
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Openaq costs 3¢ per call on SettleGrid using the per invocation pricing model. Credits never expire and you can buy more at any time.
Install the SettleGrid SDK with `npm install @settlegrid/mcp`, then wrap your handler: `const sg = settlegrid.init({ toolSlug: 'openaq', pricing: { defaultCostCents: 3 } })`. Use your API key in the `x-api-key` header when calling the tool endpoint. Full guide at settlegrid.ai/docs.
SettleGrid's Smart Proxy brokers payments across 9 agent payment protocols (MCP, x402 from Coinbase/Linux Foundation, Stripe MPP pending GA, AP2 from Google, ACP from OpenAI, UCP from Google+Shopify, Visa TAP, Mastercard Verifiable Intent, and Circle Nanopayments) and has detection adapters for 2 more (L402 on Bitcoin Lightning and Skyfire's KYAPay). Additional rails are tracked as their specs mature. Consumers can fund credits via Stripe.
SettleGrid offers a free tier with 50,000 operations per month. You can buy credits starting at $5.00 to try Openaq, and credits never expire.
Openaq was built by Lex Whiting. View their full profile and other tools at settlegrid.ai/dev/lexwhiting.