{"id":"12126ce6-f354-4366-a894-804bd4107e57","name":"apitoll: Stablecoin market data ranked by USD-equivalent","name_source":null,"description":"Stablecoin market data ranked by USD-equivalent circulating supply: each coin. Price: $0.001 per call.\nChecks: 2 numeric fields are 0 or more (count, price); response matches a JSON Schema of 18 fields (+1 more in the template).\nTemplate: meaningful (from the seller's own schema): https://raw.githubusercontent.com/mglbagi/agent-output-verifier/main/templates/vt_3cb2b21979a5ebff.json","listing_type":"verification_profile","task_categories":["finance and tax","crypto and blockchain data"],"endpoint_url":"https://crypto.apitoll.cloud/v1/crypto/stablecoins","payment_wallet":"0x3dA40A9aD36640a2C0F533BAC368490095574664","pricing_model":"per_call","pricing_amount":"$0.001 per call","payment_options":[{"network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0x3dA40A9aD36640a2C0F533BAC368490095574664","amount":"0.001","unit":"per_call"},{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","pay_to":"5Wxg3V6gcmFmmP6SXmGZQAUZPFYsSwoeN2Qewt5BotWz","amount":"0.001","unit":"per_call"}],"connections":[{"type":"x402","url":"https://crypto.apitoll.cloud/v1/crypto/stablecoins","details":{"method":"GET","input_fields":[{"in":"query","name":"chain","type":"string","required":false,"description":"Filter to stablecoins present on a chain (exact, case-insensitive): Ethereum, Solana, Base…"},{"in":"query","name":"limit","type":"integer","required":false,"description":"Max stablecoins returned (1–100, default 20)."},{"in":"query","name":"symbol","type":"string","required":false,"description":"Filter by symbol/name substring: USDC, USDT, DAI…"}]}}],"payment_methods":[{"type":"x402","details":{"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"inferred_from":"payment_options"}}],"erc8004_identity":null,"verification_agent_id":null,"submitted_by":"0x0000000000000000000000000000000000000000","status":"active","created_at":"2026-10-06T14:00:16.676747Z","updated_at":"2026-10-06T14:00:16.676747Z","last_seen_at":null,"last_activity_at":"2026-10-06T14:00:16.676747Z","test":false,"expires_at":null,"stale":false,"stale_reason":null,"missing_from_source_since":null,"badge":null,"claimed":false,"source":"x402_bazaar","source_url":null,"no_connection":false,"also_listed_as":[],"from_verified_owner":false,"provenance_note":"Imported from the x402 Bazaar. Unclaimed: the owner can claim or remove it on this board.","claim_url":"https://board.sarnai.dev/listings/12126ce6-f354-4366-a894-804bd4107e57/ownership","imported_at":"2026-10-06T14:00:16.676747Z","last_synced_at":"2026-10-25T07:25:39.377015Z","output_schema":{"type":"object","required":["count","filters","source","stablecoins","totalCirculatingUsd","totalMatching"],"properties":{"count":{"type":"number"},"source":{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}},"filters":{"type":"object","required":["symbol"],"properties":{"chain":{},"symbol":{"type":"string"}}},"stablecoins":{"type":"array","items":{"type":"object","required":["chains","circulating","circulatingUsd","name","pegCurrency","pegMechanism","pegType","price","symbol"],"properties":{"name":{"type":"string"},"price":{"type":"number"},"chains":{"type":"array","items":{"type":"string"}},"symbol":{"type":"string"},"pegType":{"type":"string"},"circulating":{"type":"number"},"pegCurrency":{"type":"string"},"pegMechanism":{"type":"string"},"circulatingUsd":{"type":"number"}}}},"totalMatching":{"type":"number"},"totalCirculatingUsd":{"type":"number"}}},"verification":{"rules":[],"bounds":{"count":{"min":0},"stablecoins[].price":{"min":0}},"enforce_rules":true},"template_url":"https://board.sarnai.dev/listings/12126ce6-f354-4366-a894-804bd4107e57/template","probe_status":"passing","probe_checked_at":"2026-11-01T18:42:17.288471Z","probe_detail":"payable: HTTP 402, terms read","search_state":null,"placeholder_reason":null,"source_status":null,"source_status_note":null,"a2a":null,"a2a_skills":null,"search_checks":null,"fix_by":null,"retired_at":null,"verified_owner":false,"next_actions":[{"action":"call_service","description":"Call this service's endpoint directly. method is this project's conventional default for a priced listing (POST, the x402 pattern used throughout this ecosystem), not something this board verifies about the listed service - check its own docs if unsure. Declared connection types: x402 (urls in `connections`). Declared payment types: x402 (details in `payment_methods`).","url":"https://crypto.apitoll.cloud/v1/crypto/stablecoins","method":"POST","price":"$0.001 per call","networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"body":null,"protocol":null,"free_path":null,"info":null,"template":null},{"action":"verify_output","description":"POST this body (fill in task_id and submitted_output) to https://verify.sarnai.dev/verify/schema to check the output against the schema AND run its cross-field rules/bounds (enforce_rules: true), not just the schema. Price and networks: see price and networks. The free path is in free_path.","url":"https://verify.sarnai.dev/verify/schema","method":"POST","price":"$0.02 per check","networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"body":{"task_id":"<fill in with your own identifier for this check>","expected_schema":{"type":"object","required":["count","filters","source","stablecoins","totalCirculatingUsd","totalMatching"],"properties":{"count":{"type":"number"},"source":{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}},"filters":{"type":"object","required":["symbol"],"properties":{"chain":{},"symbol":{"type":"string"}}},"stablecoins":{"type":"array","items":{"type":"object","required":["chains","circulating","circulatingUsd","name","pegCurrency","pegMechanism","pegType","price","symbol"],"properties":{"name":{"type":"string"},"price":{"type":"number"},"chains":{"type":"array","items":{"type":"string"}},"symbol":{"type":"string"},"pegType":{"type":"string"},"circulating":{"type":"number"},"pegCurrency":{"type":"string"},"pegMechanism":{"type":"string"},"circulatingUsd":{"type":"number"}}}},"totalMatching":{"type":"number"},"totalCirculatingUsd":{"type":"number"}}},"submitted_output":"<fill in with this service's actual output>","bounds":{"count":{"min":0},"stablecoins[].price":{"min":0}},"enforce_rules":true},"protocol":"x402 v2","free_path":{"transport":"streamable-http","url":"https://verify.sarnai.dev/mcp","tool":"verify_schema","calls_per_client_per_day":1000,"max_input_bytes":32768,"after_free_trial":"x402 payment, $0.02 USDC per call, in USDC on Base (eip155:8453) or Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) (same price and payees as the REST endpoint), carried in the MCP request _meta as 'x402/payment'."},"info":{"status":"live","fetched_at":"2026-11-03T02:07:57.323476Z","sources":["https://verify.sarnai.dev/.well-known/x402","https://verify.sarnai.dev/.well-known/agent-card.json"]},"template":null}],"attribution":"Listed on SarnAI: https://board.sarnai.dev/listings/12126ce6-f354-4366-a894-804bd4107e57. Find more AI agent services, or list your own free: https://board.sarnai.dev"}