chain code derived

api.onesource.ioMarket data derived

GET https://api.onesource.io/api/chain/code/:address

malformedlisted in Coinbase#17 by calls of 53 on this host

0.003 USDC

per call, as the listing declares it on eip155:8453

Compare with another Every figure as JSON Cite this page

the price, as of 2026-09-15 16:57 UTC · method · pinnable

Validation state: malformed; as of 2026-09-15 03:58 UTC · method · pinnable · sweep daily-2026-09-15
Uptime, 7 / 30 / 90 days: 0% / 0% / 0%; as of 2026-09-15 03:58 UTC · method · pinnable · 0 of 5 in 7d, 0 of 5 in 30d, 0 of 5 in 90d
Calls, trailing 30 days: 416; as of 2026-09-15 16:57 UTC · method · pinnable
Unique payers, trailing 30 days: 412; as of 2026-09-15 16:57 UTC · method · pinnable
Last called: 2026-09-15 09:54 UTC; as of 2026-09-15 16:57 UTC · method · pinnable
First observed by TOLLderived: 2026-09-10; as of 2026-09-10 19:08 UTC · method · pinnable · observation began 10 September 2026; listings that predate it show that date
Pricederived: 0.003 USDC; as of 2026-09-15 16:57 UTC · method · pinnable · on eip155:8453
Networks: 1; as of 2026-09-15 16:57 UTC · method · pinnable

Counters

28 observations, 16 of them a change

How has the volume on this endpoint moved?

Calls counted in the trailing 30 days on this endpoint, at every snapshot since 2026-09-10. Each point is a trailing-30-day sum as the registry published it, not a daily rate. The axis is truncated to the range of the data with a break at its foot.

In words

On 2026-09-15, chain code returned 402 but failed the required check has_bazaar_extension.

For chain code the failing check asks whether the body carries the Bazaar discovery extension.

chain code, a GET endpoint on api.onesource.io, appears in the Coinbase registry; TOLL's taxonomy puts it in market data.

chain code is priced at 0.003 USDC on Base.

The request to chain code is the query parameter network and the path parameter address.

For chain code the listing declares 2 accepts on Base, all to one wallet.

The declared response carries data and meta.

chain code drew 416 calls from 412 unique payers in the trailing 30 days.

The last call to chain code came on the day of the snapshot, 2026-09-15.

api.onesource.io lists 53 endpoints; chain code is 17th by calls.

3% of the host's counted calls go to it.

chain code is priced above 16% of comparable listings in market data.

Closest in price to chain code within market data: stocks earnings surprises at 2s.io and price btc usd at vibesprings.net.

chain code declares exact and batch-settlement as payment schemes.

53 listed endpoints on one host pay to the same wallet.

chain code out-counts 99% of the 5,172 endpoints in market data that carry counters.

The price of chain code is declared by 230 other listings in market data too.

Payment options as declared

the payment options, as of 2026-09-15 16:57 UTC · method · pinnable

Every payment option declared on this listing
registry	network	asset	amount	scheme	pay to
Coinbase	eip155:8453	USDC	0.003 USDC	exact	0x52E29e…51f3ea
Coinbase	eip155:8453	USDC	0.003 USDC	batch-settlement	0x52E29e…51f3ea

Preflight checks at the last sweep

the checks, as of 2026-09-15 03:58 UTC · method · pinnableendpoint answered HTTP 402

has_bazaar_extension · the body carries the Bazaar discovery extension

Validation history, 90 days

Every sweep that observed this endpoint, newest first.

Validation observations over the last 90 days
observed, UTC	state	failed checks	sweep
2026-09-15 03:58 UTC	malformed	1	daily-2026-09-15
2026-09-14 03:57 UTC	malformed	1	daily-2026-09-14
2026-09-13 03:57 UTC	malformed	1	daily-2026-09-13
2026-09-12 06:12 UTC	malformed	1	daily-2026-09-12
2026-09-11 09:36 UTC	malformed	1	daily-2026-09-11

Registry presence

Presence in a registry, not liveness of the service (method). Newest first.

2026-09-10 19:08 UTClisted in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-09-15 15:24 UTC · method · live

The input and output block

{
  "input": {
    "type": "http",
    "method": "GET",
    "pathParams": {
      "address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
    },
    "queryParams": {
      "network": "ethereum"
    }
  },
  "output": {
    "type": "json",
    "example": {
      "data": {
        "code": "0x6080604052600436106101...",
        "address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
        "code_length": 10234,
        "is_contract": true
      },
      "meta": {
        "endpoint": "/api/chain/code/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
        "cost_usdc": "0.001",
        "request_id": "00000000abcdef01",
        "payment_chain": "base",
        "payment_token": "USDC"
      }
    }
  }
}

What the listing says

Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode

the record, 2026-09-15 15:24 UTC · method · pinnable

As declared

GET
eip155:8453
USDC
exact
batch-settlement

Every tag is a field on the listing, not a keyword TOLL assigned.

Who is paid

0x52E29e…51f3ea

Takes payment for 53 endpoints on 1 host.

Among Market data

counted above99%

of 5,172 that carry counters

cheaper than16%

of 5,260 with a comparable price

5,316 endpoints are in this category. 230 declare exactly this price.

the comparison, 2026-09-15 16:57 UTC · method · live

Nearest on price

route402signal.com0.003 USDCpass
kol sentimentx402.ottoai.services0.003 USDCpass
stocks earnings surprises2s.io0.0025 USDCpass
price btc usdvibesprings.net0.002 USDCpass
perp fundingagent402.tools0.002 USDCpass

Same category, nearest declared price, one per payee wallet (method). the list, 2026-09-15 16:57 UTC · method · live

Elsewhere in the record

Cite this page

The pinned URL below renders this page from the snapshot of 2026-09-15 16:57 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).

Plain text

TOLL, "chain code on api.onesource.io", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/api-onesource-io-api-chain-code-address-0f2f22/at/2026-09-15T16-57Z. Accessed [access date].

BibTeX

@misc{toll-e-api-onesource-io-api-chain-code-address-0f2f22-2026-09-15T16-57Z,
  author = {TOLL},
  title = {chain code on api.onesource.io},
  howpublished = {\url{https://tollindex.com/e/api-onesource-io-api-chain-code-address-0f2f22/at/2026-09-15T16-57Z}},
  year = {2026},
  month = {9},
  note = {Pinned view of the snapshot of 2026-09-15 16:57 UTC. Accessed [access date].}
}

Reports and replies about this endpoint

None yet. Anything submitted through the form below is published here with its outcome.

Report an error about chain code, or reply as the named seller