Preflight

Name: Preflight service
Creator: Agent GDP
License: https://creativecommons.org/licenses/by/4.0/

The service's listing describes it this way: Call before installing packages suggested by a language model. Returns, for each npm or PyPI package name, whether it actually exists in the registry, whether it is deprecated or yanked, and — when the name is not found — the closest real package names. Catches hallucinated dependencies (slopsquatting) before an agent installs them. Never inspects package contents and never returns a safety verdict. Website

A service is a tool an AI agent pays to call. Preflight is listed on this page under AI inference / LLM, settling on Base, through x402. 30-day settled volume on this page is $0.05. The listing comes from the service catalog. Open a row for payments, payers, and chains. See Bazaar, agent payment use cases, and the methodology.

FacilitatorsCoinbase

Payee

0xb9db…a607Base

Methodology · settled volume through 2026-10-26 · catalog Oct 26, 2026, 11:02 AM UTC

Settled volume, payments, payers, average payment, use-case share, and rank
Metric	24h	7d	30d
Volume	$0.00	$0.05	$0.05
Payments	0	1	1
Payers	0	1	1
Avg payment	$0.00	$0.05	$0.05
Share of AI inference / LLM	—	0.0%	0.0%
Use-case rank	—	#25	#27

Payers can be counted more than once when they paid through more than one facilitator.

Settled volume

$0.05

n/a

Payments

Payers

Avg payment

$0.05

volume / payments

Daily volume and buyers

90D 1Y All

Data through Oct 26, 2026. Source: public settlement logs. Methodology

Payers

Buyer concentration

100.0%

Top payer's share of lifetime volume. Not the period selected above.

Repeat buyers

0.0%

Lifetime buyers with more than one payment, divided by all buyers.

Endpoints and prices

Price, network, and asset come from the x402 Bazaar catalog.

Endpoint	Network	Asset	Price	Scheme
https://preflight402.com/v1/deps/check Call before installing packages suggested by a language model. Returns, for each npm or PyPI package name, whether it actually exists in the registry, whether it is deprecated or yanked, and — when the name is not found — the closest real package names. Catches hallucinated depen	base	USDC	$0.05	exact
https://preflight402.com/v1/cve/check Call before acting on CVE identifiers produced by a model. Returns whether each CVE record exists and its state (published or rejected), with severity and the official CVE record link. Catches fabricated advisory references. Does not tell you whether to patch.	base	USDC	$0.05	exact
https://preflight402.com/v1/evm/tx-inspect Call before signing an Ethereum or Base transaction or calldata. Decodes raw transaction bytes or contract calldata against standard interfaces (ERC-20, ERC-721, ERC-1155, WETH, EIP-2612 Permit and Permit2) in memory. Returns the decoded method signature, typed parameters, value	base	USDC	$0.10	exact
https://preflight402.com/v1/legal/cite-check Call before publishing a claim that cites EU law. Checks that the cited instrument exists in our pinned corpus, that the cited article exists within it, and whether your quoted text actually appears in that article. Covers the AI Act, GDPR, NIS2, DORA and the Cyber Resilience Act	base	USDC	$0.10	exact
https://preflight402.com/v1/ai-act/obligations Call when you need to know which articles of the EU AI Act mention a given obligation for a given role (provider, deployer, importer, distributor, authorised representative). Returns the matching articles with headings, excerpts and EUR-Lex links from a pinned corpus version. Ret	base	USDC	$0.10	exact
https://preflight402.com/v1/btc/tx-context Call before signing a Bitcoin transaction when you need chain context for its inputs: whether each prevout exists, whether it is already spent, its value in sats and its confirmations. Resolves up to 10 inputs against a public explorer at about one request per second, so a full b	base	USDC	$0.10	exact
https://preflight402.com/v1/btc/tx-inspect Call before signing or broadcasting a Bitcoin transaction. Decodes a raw transaction hex or a PSBT and returns inputs, outputs, script types, addresses, vsize, fee rate when derivable, and objective signals such as RBF, dust outputs, non-standard sighash flags and unsigned inputs	base	USDC	$0.10	exact
https://preflight402.com/v1/deps/version-check Call before pinning or installing a specific package version in npm, PyPI or crates.io. Returns whether that exact version exists in the official registry, its publication timestamp, whether it is deprecated or yanked, its published artifact hashes, and whether an expected SRI/he	base	USDC	$0.05	exact

Facilitators used

Facilitator	Volume	Tx	Share
Coinbasex402	$0.05	1	100.0%

Other services in AI inference / LLM

All in this use case

BlockRun.AI#1 · $127.39 30d
CheapTokens AI Inference#2 · $20.65 30d
api.onesource.io#3 · $18.83 30d
api.glianalabs.com#4 · $6.12 30d
a2apay Agent Query#5 · $3.14 30d

How we count Preflight

We read settlements directly from each chain's public records and refresh them every few minutes.

Data through 2026-10-26. Source: public settlement logs.

Full methodology → · How we compare with other trackers →

Cite this

APA

Agent GDP. (2026). Preflight [Data set]. Retrieved October 26, 2026, from https://agentgdp.io/service/preflight402.com.

MLA

"Preflight." Agent GDP, 26 Oct. 2026, https://agentgdp.io/service/preflight402.com.

BibTeX

@misc{agentgdp_preflight_2026,
  author = {{Agent GDP}},
  title = {Preflight},
  year = {2026},
  url = {https://agentgdp.io/service/preflight402.com},
  note = {Retrieved October 26, 2026. Data through 2026-10-26. Licensed under CC BY 4.0.},
  license = {https://creativecommons.org/licenses/by/4.0/}
}

Plain text

Preflight: $0.05 settled volume (7d), 1 payments, 1 buyers. Agent GDP, data through 2026-10-26. https://agentgdp.io/service/preflight402.com Retrieved October 26, 2026.

Data from Agent GDP (https://agentgdp.io/service/preflight402.com), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).

Payers on a day can be counted more than once if they paid through more than one facilitator. Growth compares this period with the previous period of the same length. The page link uses the service's site when we have one, and the payee address otherwise.

Volume and payment counts include earlier days. Transaction-level detail available from October 23, 2026.

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Cite this

APA

Agent GDP. (2026). Service settled volume [Data set]. Retrieved October 26, 2026, from https://agentgdp.io/service/0xb9db3966c7f18283624c97e860a84cef7f9ba607.

MLA

"Service settled volume." Agent GDP, 26 Oct. 2026, https://agentgdp.io/service/0xb9db3966c7f18283624c97e860a84cef7f9ba607.

BibTeX

@misc{agentgdp_service_settled_volume_2026,
  author = {{Agent GDP}},
  title = {Service settled volume},
  year = {2026},
  url = {https://agentgdp.io/service/0xb9db3966c7f18283624c97e860a84cef7f9ba607},
  note = {Retrieved October 26, 2026. Licensed under CC BY 4.0.},
  license = {https://creativecommons.org/licenses/by/4.0/}
}

Plain text

Service settled volume. Agent GDP. https://agentgdp.io/service/0xb9db3966c7f18283624c97e860a84cef7f9ba607. Retrieved October 26, 2026.

Data from Agent GDP (https://agentgdp.io/service/0xb9db3966c7f18283624c97e860a84cef7f9ba607), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).

Time	Daily settled volume for Preflight
2026-10-23	$0.05
2026-10-24	$0.00
2026-10-25	$0.00
2026-10-26	$0.00