Add Lithium Research Vault to ecosystem (Services/Endpoints)

[ciinkwia]

What this adds

Lithium Research Vault — two x402-payable endpoints serving structured
lithium mine + operator data from a curated primary-source corpus (SEC, ASX,
TSX, SEDAR, cninfo, and IR filings). Running on Base mainnet since 2026-05-21.

Category: Services/Endpoints

Endpoints

Name	Endpoint	Price	Network
Vault — raw data	GET /vault	$0.05 USDC	Base
Vault — narrative synthesis	GET /vault/story	$0.20 USDC	Base

Both accept ?entity=<TICKER|MineName>&level=<company|mine> and resolve
multi-operator mines (e.g., Greenbushes → IGO + ALB + TIANQI rows).

Live URL: https://clink-lithium-vault.fly.dev
Current listing on agentic.market: https://agentic.market/services/clink-lithium-vault-fly-dev

Coverage (as of 2026-05-21)

• 40 vault operators (38 with extracted financials)
• 49 producing mines tracked across Hardrock-Producers + Brine-Producers reference lists
• Every numeric value FX-normalized to USD at extraction time with source filing URL on every row

Technical details

• Scheme: exact
• Asset: USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)
• payTo: 0xB1eF5415E9D3695e16977B8be422AB7512F788C0
• Refund-by-design: out-of-vault entities 400 before payment middleware
• Response: typed JSON validated by Zod (vault-v1 schema)
• Differentiator vs other paid lithium feeds: curated primary-source corpus, not a wrapper around free public APIs. Citation URL on every numeric value.

About the metadata.json in this PR

Added typescript/site/app/ecosystem/partners-data/lithium-research-vault/metadata.json. Logo not included — happy to follow up with a 168×168 PNG (or other preferred format/dimensions) in a follow-up commit on this PR, or you can use the service favicon at https://clink-lithium-vault.fly.dev/favicon.ico for now.

I've omitted logoUrl from metadata.json given no logo file exists yet — let me know if you'd prefer I add a placeholder reference and a logo file in the same PR.

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2

[ciinkwia]

Closing — I missed the repo-move note at the top of the README. Re-filing this against x402-foundation/x402 as that's where ecosystem PRs now land. Sorry for the noise!