Low-Price GPT-5.5 x402 API

skills: {'id': 'gpt55-chat-completions', 'name': 'GPT-5.5 Chat Completions', 'description': 'Generate concise text responses from an OpenAI-compatible chat completion endpoint. Price: $0.110876 USDC per request via x402 on Base. Use for summarize text, translate text, answer question, rewrite text, context QA, and short agent responses.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help'], 'examples': ['Summarize this paragraph in one sentence.', 'Translate this short message.', 'Answer this question concisely.'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-long-chat-completions', 'name': 'GPT-5.5 Long Chat Completions', 'description': 'Generate longer GPT-5.5 responses up to 4096 output tokens from an OpenAI-compatible chat completion endpoint. Price: $0.110876 USDC per request via x402 on Base.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'long-output'], 'examples': ['Write a detailed technical summary.', 'Explain this code with edge cases.'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-max-chat-completions', 'name': 'GPT-5.5 Max-Output Chat Completions', 'description': 'Generate true max-output GPT-5.5 responses up to 128000 output tokens from an OpenAI-compatible chat completion endpoint. Price: $0.523889 USDC per request via x402 on Base.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'max-output'], 'examples': ['Write a full-length technical report.', 'Generate a long-form implementation plan.'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-x402BuyerPaymentExecutionRunbook', 'name': 'x402 Buyer Payment Execution Runbook', 'description': 'Premium GPT-5.5 x402 buyer execution agent that turns a paid route, budget cap, runtime, payTo/network expectation, and receipt policy into runnable Node, Python, Bash, MCP, and Flowise payment execution assets. The service never asks for private keys and never pays the target endpoint. Price: $4.90 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 paid tool, Base USDC, pay per request, GPT-5.5.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'x402-buyer-payment-execution', 'payment-header', 'same-request-retry', 'official-x402-client', 'mcp', 'flowise', 'receipt-evidence', 'high-value-agent'], 'examples': ['{"service_url":"https://gpt55.558686.xyz","paid_route":"https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack","method":"POST","buyer_runtime":"node","wallet_env_var":"X402_PRIVATE_KEY","buyer_team":"agent platform","vendor_name":"GPT55 x402 Gateway","use_case":"x402-buyer-payment-execution-runbook","max_usdc_per_call":0.02,"daily_budget_usdc":1,"expected_pay_to":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","expected_network":"eip155:8453","require_receipt_evidence":true}', 'x402 paid tool', 'Base USDC', 'pay per request'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-x402AgentWalletIncidentResponsePack', 'name': 'x402 Agent Wallet Incident Response Pack', 'description': 'Premium x402 incident response agent for autonomous wallets and paid MCP buyers. It returns a freeze policy, revoke checklist, evidence bundle, payment pause rules, receipt review, and safe next-action plan without requiring private keys. Price: $3.90 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 paid tool, Base USDC, pay per request, GPT-5.5.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'agent-wallet-incident-response', 'wallet-security', 'x402-payment-incident', 'revoke-checklist', 'receipt-evidence', 'agent-payments', 'high-value-agent'], 'examples': ['{"service_url":"https://gpt55.558686.xyz","paid_route":"https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack","method":"POST","buyer_runtime":"node","wallet_env_var":"X402_PRIVATE_KEY","buyer_team":"agent platform","vendor_name":"GPT55 x402 Gateway","use_case":"x402-agent-wallet-incident-response-pack","max_usdc_per_call":0.02,"daily_budget_usdc":1,"expected_pay_to":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","expected_network":"eip155:8453","require_receipt_evidence":true}', 'x402 paid tool', 'Base USDC', 'pay per request'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-x402ProcurementVendorRiskDossier', 'name': 'x402 Procurement Vendor Risk Dossier', 'description': 'Premium procurement agent for x402 and paid MCP services. It turns vendor URL, route, payTo, network, price cap, receipts, and buyer use case into a scorecard, approval memo, security checklist, budget note, and pay/no-pay policy. Price: $5.90 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 paid tool, Base USDC, pay per request, GPT-5.5.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'x402-procurement', 'vendor-risk', 'paid-mcp-approval', 'security-review', 'budget-approval', 'agent-payments', 'high-value-agent'], 'examples': ['{"service_url":"https://gpt55.558686.xyz","paid_route":"https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack","method":"POST","buyer_runtime":"node","wallet_env_var":"X402_PRIVATE_KEY","buyer_team":"agent platform","vendor_name":"GPT55 x402 Gateway","use_case":"x402-procurement-vendor-risk-dossier","max_usdc_per_call":0.02,"daily_budget_usdc":1,"expected_pay_to":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","expected_network":"eip155:8453","require_receipt_evidence":true}', 'x402 paid tool', 'Base USDC', 'pay per request'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-x402McpProductionLaunchAudit', 'name': 'x402 MCP Production Launch Audit', 'description': 'Premium paid MCP launch agent that returns a production readiness gate, MCP client config checks, entitlement policy, receipt gate, OpenAPI/x402 discovery consistency checks, and launch blocker list. Price: $4.90 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 paid tool, Base USDC, pay per request, GPT-5.5.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'paid-mcp-launch-audit', 'mcp-production', 'x402-entitlement', 'receipt-gate', 'openapi', 'high-value-agent'], 'examples': ['{"service_url":"https://gpt55.558686.xyz","paid_route":"https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack","method":"POST","buyer_runtime":"node","wallet_env_var":"X402_PRIVATE_KEY","buyer_team":"agent platform","vendor_name":"GPT55 x402 Gateway","use_case":"x402-mcp-production-launch-audit","max_usdc_per_call":0.02,"daily_budget_usdc":1,"expected_pay_to":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","expected_network":"eip155:8453","require_receipt_evidence":true}', 'x402 paid tool', 'Base USDC', 'pay per request'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}, {'id': 'gpt55-x402WalletReceiptAccountingPack', 'name': 'x402 Wallet Receipt Accounting Pack', 'description': 'Premium receipt accounting agent for x402 wallets. It returns ledger schema, normalized accounting rows, receipt matching policy, reconciliation checklist, spend classification, and audit evidence rules. Price: $3.90 USDC per request via x402 on Base. No upstream model call. Buyer search phrases: x402 paid tool, Base USDC, pay per request, GPT-5.5.', 'tags': ['ai', 'llm', 'gpt-5.5', 'chat', 'openai-compatible', 'x402', 'base-usdc', 'x402-chat', 'openai-compatible-chat', 'pay-per-request', 'agent-tool', 'summarize', 'summarization', 'tldr', 'translate', 'translation', 'rewrite', 'editing', 'grammar', 'question-answering', 'qa', 'context-qa', 'text-processing', 'code-review', 'debugging', 'json', 'url-metadata', 'url-text', 'url-links', 'x402-audit', 'api-audit', 'buyer-readiness', 'openapi-audit', 'http-status', 'redirect-check', 'web-metadata', 'web-scraping', 'link-extraction', 'crawler', 'text-extraction', 'data-extraction', 'json-validate', 'validation', 'hash', 'base64', 'jwt', 'timestamp', 'url-parse', 'querystring', 'regex', 'slugify', 'case-convert', 'uuid', 'text-stats', 'line-diff', 'structured-output', 'microtask', 'rewriting', 'coding-help', 'x402-receipt-accounting', 'wallet-accounting', 'ledger-schema', 'reconciliation', 'receipt-evidence', 'agent-payments', 'high-value-agent'], 'examples': ['{"service_url":"https://gpt55.558686.xyz","paid_route":"https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack","method":"POST","buyer_runtime":"node","wallet_env_var":"X402_PRIVATE_KEY","buyer_team":"agent platform","vendor_name":"GPT55 x402 Gateway","use_case":"x402-wallet-receipt-accounting-pack","max_usdc_per_call":0.02,"daily_budget_usdc":1,"expected_pay_to":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","expected_network":"eip155:8453","require_receipt_evidence":true}', 'x402 paid tool', 'Base USDC', 'pay per request'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}; conformance: fail

How to connect

https://gpt55.558686.xyz/v1/chat/completions

curl -X POST https://gpt55.558686.xyz/v1/chat/completions \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'