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Twelve Data
by
API3Premium Sponsored?Fees are sponsored by AirnodeHub during the early accessAirnode v0.1.5
Twelve Data sells market data across every asset class from one interface: shares, funds, indices, currency pairs and crypto pairs, all spelled the same way and all answering the same operations. This Airnode wraps the reference, price and technical indicator side of it.
Three kinds of claim come out of it, and they are worth telling apart before an attestation over one is relied on.
Settled facts stop changing once they exist, such as a closing price. Two Airnodes asked afterwards agree, so those attestations compose and aggregate.
Live readings do not. A quote, a price, an exchange rate and anything computed from them are true for the instant they were taken, and an attestation over one is provenance for that instant rather than a fact anyone else will reproduce.
Computed values are the third kind. Every technical indicator here is calculated by Twelve Data over the bars timeSeries returns, so what a signature attests is that Twelve Data computed that value from that series then, not that the calculation is right. A consumer holding both attestations can check one against the other, which is the point of serving them side by side.
Twelve Data's real-time streaming, its mutual fund and bond products and the rest of its hundred-odd technical indicators are not among the operations this Airnode serves.
Every response carries an EIP-191 signature from the Airnode that served it, so the data can be attributed back to its source rather than trusted on reputation.
Ask the Hub what Twelve Data can tell you →Interface
Served at https://airnode-twelvedata.fly.dev/. Each operation is reached the way the provider documents it, under https://airnode-twelvedata.fly.dev/api, and answers with the provider's own response and the attestation in headers, so a client built against the provider works unchanged. The same operations are also served as one JSON envelope on POST /, which the HTTP interface covers. Every request below can be sent from this page, and what comes back is verified right here in the browser.
ANY /api/…
The provider's own requests, one per operation, forwarded as they are. The provider's response comes back untouched, with the attestation in the X-Airnode headers.
Verify the response
Paste a response to verify it originates from the current Airnode: the JSON a POST / answers with, or a passthrough response with its headers, as curl --include prints it.