{"id":"476eafde-82e","name":"toolrail.dev/qr","description":"Generate a QR code as PNG or SVG from any text or URL (up to 2000 chars, 64-2048 px). Pairs with the PDF endpoint for payment links and labels. Use when you need a scannable QR image for a URL, payment link or label.","endpoint_url":"https://toolrail.dev/qr","endpoint_canonical":"https://toolrail.dev/qr","category":"compute.media","kind":"api","price_amount":0.002,"price_currency":"USDC","chains":["base","solana"],"request_schema":null,"response_schema":null,"sample_query":null,"facilitator_url":null,"status":"verified","delisted_reason":null,"origin":"indexed","ephemeral":false,"created_at":1793354162,"updated_at":1793355994,"status_changed_at":1793355994,"embedding_synced_at":1793360792,"score":1,"p50_latency_ms":459,"p95_latency_ms":934,"p99_latency_ms":1099,"probe_count":345,"probes_passed":345,"last_ok_at":1794019356,"consecutive_failures":0,"last_probed_at":1794019356,"probe_interval_s":7200,"distinct_payers":0,"x402_version":2,"transport":"header","obs_scheme":"exact","accepts_count":2,"accepts_index":0,"obs_network":"eip155:8453","obs_asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","obs_pay_to":"0xC6E6138dAAc78CeC93d491b4581Afa1a61B98a17","amount_atomic":"2000","amount_usd":0.002,"domain_name":"USD Coin","domain_version":"2","observed_at":1794019356,"obs_first_seen_at":1793354330,"price_changed_at":null,"pay_to_changed_at":null,"payto_unstable":false,"payto_distinct_recent":1,"onchain_provider_status":null,"onchain_payto_checked":"0xc6e6138daac78cec93d491b4581afa1a61b98a17","onchain_checked_at":1794018995,"onchain_last_attempt_at":1794018995,"onchain_provider_error":0,"onchain_source":"index","header_bytes":3192,"verified_via":"POST","testnet":false,"payment_protocols":["x402"],"mpp_methods":null,"mpp_offers":null,"mpp_note":null,"onchain_payto_shared_listings":11,"onchain_count_capped":false,"onchain_shape":null,"onchain_daily":[{"day":"2026-10-08","tx":2,"payers":1,"usd":0.007},{"day":"2026-10-10","tx":3,"payers":1,"usd":0.015},{"day":"2026-10-11","tx":59,"payers":2,"usd":0.251},{"day":"2026-10-12","tx":3,"payers":1,"usd":0.012},{"day":"2026-10-14","tx":2,"payers":2,"usd":0.004},{"day":"2026-10-15","tx":1,"payers":1,"usd":0.002},{"day":"2026-10-19","tx":2,"payers":1,"usd":0.007},{"day":"2026-10-21","tx":5,"payers":4,"usd":0.014},{"day":"2026-10-22","tx":2,"payers":2,"usd":0.004},{"day":"2026-10-24","tx":1,"payers":1,"usd":0.005},{"day":"2026-10-25","tx":28,"payers":4,"usd":0.057},{"day":"2026-10-26","tx":1,"payers":1,"usd":0.005},{"day":"2026-10-27","tx":2,"payers":1,"usd":0.004},{"day":"2026-10-28","tx":4,"payers":3,"usd":0.013},{"day":"2026-10-29","tx":3,"payers":3,"usd":0.007},{"day":"2026-10-30","tx":4,"payers":3,"usd":0.009},{"day":"2026-11-01","tx":12,"payers":3,"usd":0.028},{"day":"2026-11-04","tx":4,"payers":4,"usd":0.008},{"day":"2026-11-06","tx":4,"payers":2,"usd":0.011}],"latest_purchase_delivered":false,"latest_purchase_at":1793518323,"paid_verification_latest":{"at":1793518323,"delivered":false,"tx_hash":"0x44584dc7f366a3ab3fbbb814df4f5412bad43973843f6822a54f6e0a74a59cb1","amount_usdc":0.002,"failure_reason":"invalid_json","note":"Most recent settled purchase by the nohumans scout; it did NOT deliver. Read this beside paid_verification, which reports the latest SUCCESS and may be older.","at_iso":"2026-11-01T07:32:03Z","age_days":5},"paid_verification":{"verified":false,"payment_settled_on_failure":{"attempted_at":1793518323,"tx_hash":"0x44584dc7f366a3ab3fbbb814df4f5412bad43973843f6822a54f6e0a74a59cb1","amount_usdc":0.002,"http_status":200,"failure_reason":"invalid_json","note":"Endpoint settled a real USDC payment but the response failed validation — it charges before validating. On-chain settlement proof attached."}},"has_sample":false,"method_note":"This endpoint does not serve its 402 to a bare GET; the payment challenge was observed on POST with a JSON body. Call it with POST.","paid_verified":false,"paid_verified_at":null,"paid_depth":{"rung":"none","deliveries":0,"span_weeks":0,"first_ok_at":null,"last_ok_at":null,"last_attempt_ok":0,"through_change":false,"first_ok_at_iso":null,"last_ok_at_iso":null},"payto_sentinel":false,"payto_note":null,"evidence_tier":"probe_verified","evidence_note":"Warning: our latest settled purchase of this endpoint did NOT deliver (real USDC paid, nothing usable returned). Until a later purchase delivers, our pay rules say not to pay it. Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.","verdict_age_seconds":1250,"probe_tier":"stable","next_check_by":1794026556,"next_check_basis":"stable tier, re-probed every 2 hours: verified with no failure in the last 24 h and no change of terms or status in 7 days, or failing 11 to 50 times in a row; any failure moves it to the watch tier on that probe; a record past next_check_by is stale by our own rule","last_probed_at_iso":"2026-11-07T02:42:36Z","next_check_by_iso":"2026-11-07T04:42:36Z","status_changed_at_iso":"2026-10-30T10:26:34Z","paid_verified_at_iso":null,"probes_failed":0,"onchain_scope":"wallet-level, NOT this endpoint's: the payTo address is shared by 11 active listings, so these on-chain counts cover all of them; never attribute them to one endpoint or add them across listings","onchain_wallet":{"scope":"wallet-level, NOT this endpoint's: the payTo address is shared by 11 active listings, so these on-chain counts cover all of them; never attribute them to one endpoint or add them across listings","shared_by_listings":11,"pay_to":"0xc6e6138daac78cec93d491b4581afa1a61b98a17","tx_count_30d":142,"unique_payers_30d":25,"volume_usd_30d":0.463},"onchain_tx_count_30d":142,"onchain_unique_payers_30d":25,"onchain_volume_usd_30d":0.463,"created_at_iso":"2026-10-30T09:56:02Z","updated_at_iso":"2026-10-30T10:26:34Z","embedding_synced_at_iso":"2026-10-30T11:46:32Z","last_ok_at_iso":"2026-11-07T02:42:36Z","observed_at_iso":"2026-11-07T02:42:36Z","obs_first_seen_at_iso":"2026-10-30T09:58:50Z","onchain_checked_at_iso":"2026-11-07T02:36:35Z","onchain_last_attempt_at_iso":"2026-11-07T02:36:35Z","latest_purchase_at_iso":"2026-11-01T07:32:03Z","paid_verified_age_days":null,"latest_purchase_age_days":5,"report_outcome":{"how":"POST https://api.nohumans.directory/v1/reports","when":"after you paid this endpoint on Base, whether or not it delivered","body":{"listing_id":"476eafde-82e","ok":"JSON boolean: did it deliver what it promised","tx_hash":"your payment's transaction hash on Base","payer_signature":"EIP-191 personal_sign of message_to_sign by the wallet that paid"},"message_to_sign":"nohumans.directory report v1\nlisting_id: 476eafde-82e\ntx_hash: <tx_hash, lowercase>\nok: <true|false>","distinct_payers_reported":0,"weight":"counts toward ranking once 3+ distinct payers have reported this listing","help":"https://api.nohumans.directory/v1/reports"},"observed":{"checked_at":1794019356,"x402_version":2,"challenge_transport":"header","scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0xC6E6138dAAc78CeC93d491b4581Afa1a61B98a17","payment_options":2,"accepts_index":0,"extra":{"name":"USD Coin","version":"2"},"amount_atomic":"2000","amount_usd":0.002,"eip712_domain":{"name":"USD Coin","version":"2"},"price_stable_since":1793354330,"price_matches_listing":true,"payto_stable_since":1793354330,"checked_at_iso":"2026-11-07T02:42:36Z","price_stable_since_iso":"2026-10-30T09:58:50Z","payto_stable_since_iso":"2026-10-30T09:58:50Z"}}