Primitive402 Tool Library

Tool library

A scannable index of Primitive402 machine names, routes, prices, MCP names, tags, and agent use cases.

Current production mode: Base mainnet USDC billing beta on primitive402.dev.

status.json is the live source Billing policy Mainnet readiness Mainnet monitoring

Tool index

Search this page with your browser find command, or open a tool page for request examples and SDK usage.

Tool	Purpose	Price	Routes	MCP / SDK
`safe_fetch_url`	Fetch a public URL and return clean, agent-ready text with risk signals.	$0.01 USDC	`/v1/safe-fetch-url` `/x402/v1/safe-fetch-url`	`safe_fetch_url` `safeFetchUrl()`
`check_prompt_injection_risk`	Score supplied text for prompt-injection risk signals and detected patterns.	$0.005 USDC	`/v1/check-prompt-injection-risk` `/x402/v1/check-prompt-injection-risk`	`check_prompt_injection_risk` `checkPromptInjectionRisk()`
`verify_claim_against_source`	Check whether a public source supports, contradicts, or does not address a claim.	$0.05 USDC	`/v1/verify-claim-against-source` `/x402/v1/verify-claim-against-source`	`verify_claim_against_source` `verifyClaimAgainstSource()`
`create_page_proof`	Capture timestamped page metadata, hashes, and optional screenshot or text snapshots.	$0.10 USDC	`/v1/create-page-proof` `/x402/v1/create-page-proof`	`create_page_proof` `createPageProof()`
`extract_return_policy`	Extract structured return and refund policy terms from a public webpage.	$0.03 USDC	`/v1/extract-return-policy` `/x402/v1/extract-return-policy`	`extract_return_policy` `extractReturnPolicy()`
`extract_subscription_terms`	Extract structured subscription, trial, renewal, cancellation, and billing terms from a public webpage.	$0.04 USDC	`/v1/extract-subscription-terms` `/x402/v1/extract-subscription-terms`	`extract_subscription_terms` `extractSubscriptionTerms()`
`check_product_fit`	Check whether a public product page appears to fit buyer constraints.	$0.05 USDC	`/v1/check-product-fit` `/x402/v1/check-product-fit`	`check_product_fit` `checkProductFit()`

AgentTrust Pack

Safety and provenance tools for web ingestion, prompt-injection risk checks, claim verification, and page proofs.

Tool	Use it for	Reference
`safe_fetch_url`	Use before ingesting raw webpage content into an AI agent context.	Full tool page
`check_prompt_injection_risk`	Use before treating external webpage, email, document, or tool output text as trusted task context.	Full tool page
`verify_claim_against_source`	Use before citing a webpage as evidence for a claim in agent-generated research or writing.	Full tool page
`create_page_proof`	Use before acting on price, policy, availability, or source content that may need an audit trail.	Full tool page

Commerce Pack

Commerce tools for return policies, subscription terms, and product-fit checks.

Tool	Use it for	Reference
`extract_return_policy`	Use before a shopping or browser agent recommends, compares, or purchases a product.	Full tool page
`extract_subscription_terms`	Use before a shopping, SaaS-buying, browser, or research agent recommends, purchases, or summarizes a subscription product.	Full tool page
`check_product_fit`	Use before a shopping, browser, or commerce agent recommends, shortlists, compares, or purchases a product.	Full tool page