The MCP gateway that lets any AI agent discover and pay metered APIs on Base or Solana — without the user wiring payments themselves.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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jaysperspective
Source: Glama
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X402_AGENTIC_URLapi.agentic.market/v1/services/search agentic.market endpoint overrideX402_ALLOWLISThosts in seed.json Comma-separated allowed hostnames (replaces default)X402_ALLOW_UNVERIFIED(off) 1 allows any host — dev onlyX402_BAZAAR_URLapi.cdp.coinbase.com/platform/v2/x402/discovery/search CDP Bazaar endpoint overrideX402_CONFIRM_STRICT(off) 1 refuses payment when the client lacks elicitation OR advertises elicitation but lacks tasks/create (e.g. Claude Code as of 2026-05). Default: log a one-time warning and proceedX402_DAILY_LIMIT1.00 Max USDC spent per rolling 24h windowX402_DIRECTORY_URLX402_DISABLE_402DIRECTORYX402_DISABLE_AGENTIC(off) 1 skips agentic.marketX402_DISABLE_BAZAAR(off) 1 skips CDP BazaarX402_DISABLE_X402WATCH(off) 1 skips x402watchX402_FEDERATIONon off disables all external indexes; discover returns local-only resultsX402_FEDERATION_TIMEOUT_MS1500 Per-source timeout. A slow source produces zero entries (and a warning), never blocks discoverX402_KILL_SWITCHX402_MPP_ALLOW_NON_MAINNETX402_MPP_DEBUGX402_PAYER_PRIVATE_KEYexport =0x...X402_PAYER_SOLANA_KEYexport =<base58 secret key>X402_PER_CALL_LIMIT0.05 Max USDC per single callX402_RECEIPTS_PATH.local/receipts.jsonl Where the receipts log is writtenX402_REQUIRE_CONFIRMalways always, never, or a USDC threshold (e.g. 0.01). Asks the user to approve via MCP elicitation before signingX402_SOLANA_RPCapi.mainnet-beta.solana.com Solana RPC for fetching a recent blockhash at sign timeX402_TEST_MPP_URLX402_TEST_URLnews-ep stories Override target for pnpm pay-newsep and pnpm pay-solanaX402_X402WATCH_URLGitHub raw snapshot URL x402watch daily snapshot URL (the {date} placeholder is filled at request time)Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
3/3 tools missing one or more hints — pay.discover (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); pay.fetch (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); pay.wallet_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
2/3 tool handlers declare input schemas (67%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
2/3 tool handlers wrap calls in try/catch (67%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
Only 0/3 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
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