Preflight
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 2026-10-25 · catalog Oct 25, 2026, 6:39 AM UTC
| 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 | — | #18 | #18 |
Payers can be counted more than once when they paid through more than one facilitator.
Settled volume
$0.05
New
Payments
1
7d
Payers
1
7d
Avg payment
$0.05
volume / payments
Daily settled volume for Preflight
Data through Oct 25, 2026. Source: public settlement logs. Methodology
| Time | Daily settled volume for Preflight |
|---|---|
| 2026-10-23 | $0.05 |
| 2026-10-24 | $0.00 |
| 2026-10-25 | $0.00 |
Payers
Daily buyers for Preflight
| Time | Daily buyers for Preflight |
|---|---|
| 2026-10-23 | 1 |
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 · $76.80 30d
- CheapTokens AI Inference#2 · $19.63 30d
- api.onesource.io#3 · $10.03 30d
- api.glianalabs.com#4 · $5.43 30d
- llm-toll-production.up.railway.app#5 · $2.21 30d
Cite this
APA
Agent GDP. (2026). Preflight [Data set]. Retrieved October 25, 2026, from https://agentgdp.io/service/preflight402.com.
MLA
"Preflight." Agent GDP, 25 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 25, 2026. Data through 2026-10-25. 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 2026-10-25. https://agentgdp.io/service/preflight402.com Retrieved October 25, 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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