inference · Listed · Base · Found · 100 endpoints · Gateway-eligible
gpt55
gpt55
OpenAI-compatible GPT-5.5 compact chat completion. Fixed exact x402 Base USDC price $0.0001, 192 output-token public cap, no subscription and no public API key
Indexed from this operator's public /.well-known/x402.json. Found is not operator-owned and is not attested. Claim or opt out.
Agent Read · Cleared Index
ROUTE
Low-cost GPT-5.5 inference with fixed x402 pricing and broad utility tooling. No settlement history or identity verification.
confidence
78%
source
elevated
Index before you pay. Same payload for agents:
GET /api/cleared/agent-read?slug=cat-gpt55-558686-xyz
When to call
- When you need OpenAI-compatible chat completions at a fixed, ultra-low price of $0.0001 per request.
- When you require deterministic utility tools (JSON validation, JWT decode, text stats) with fixed x402 pricing.
- When you want to explore x402 Bazaar resources or compare discovery prices via dedicated endpoints.
- When you need an MCP integration kit for buyer onboarding with spend caps and receipt-gate configuration.
Risks
- No on-chain settlement history observed; payTo integrity is unknown.
- Identity verification is absent; operator trust is based solely on manifest and endpoint responsiveness.
- 192 output-token cap may be restrictive for complex generation tasks.
- No public API key model means access control relies entirely on x402 payment flow.
Price posture
Fixed, ultra-low. Core chat completion at $0.0001 USDC on Base. Tool endpoints range from $0.003 to $0.006 USDC.
Settle posture
Unproven. Receipt settlement has not been confirmed on-chain. No settlement volume or win rate data available.
trust data: merona.io · settlement mesh partnerCategory · Gateway
Inference with utility tooling. Positioned as a compact, fixed-price alternative for agents needing lightweight chat and deterministic helpers.
Endpoint hints
POST /v1/chat/completionsPrimary inference endpoint. OpenAI-compatible. 192 output-token cap. No API key required.
GET /v1/tools/x402-bazaar-searchSearch CDP x402 Bazaar resources. Normalizes URL, service name, tags, scheme, network, payTo, and min USDC price.
GET /v1/tools/x402-discovery-price-compareCompare x402 discovery resource prices across services. Ranks by price, scheme, network, tags, and metadata.
POST /v1/tools/x402-mcp-integration-kitMCP and x402 buyer onboarding package. Includes Claude Desktop config, curl/client handoff, spend caps, retry rules, and receipt-gate setup.
Evidence (Cleared)
- → Intake verified · Gateway-eligible
- → Trust 70/100 · pass · tier listed
- → Protocol x402 · Base
- → Manifest reachable · schema valid
- → Found listing — indexed from public x402.json, not operator-attested.
Endpoints
GPT-5.5 Compact Chat x402
$0.00POST https://gpt55.558686.xyz/v1/chat/completionsOpenAI-compatible GPT-5.5 compact chat completion. Fixed exact x402 Base USDC price $0.0001, 192 output-token public cap, no subscription and no public API key required.
GPT-5.5 x402 Bazaar Search
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-bazaar-searchSearch CDP x402 Bazaar resources and normalize resource URL, service name, tags, scheme, network, payTo, and minimum USDC price. Fixed exact x402 Base USDC price $0.004.
GPT-5.5 x402 Discovery Price Compare
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-discovery-price-compareCompare x402 discovery resource prices across services, normalize USDC amounts, and rank resources by price, scheme, network, tags, and metadata. Fixed exact x402 Base USDC price $0.003.
GPT55 x402 MCP Integration Kit
$0.00POST https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kitDeterministic MCP and x402 buyer onboarding package with Claude Desktop config, curl and official client handoff, spend caps, same-request retry rules, and receipt-gate configuration. No upstream model call is made. Fixed exact x402 Base USDC price $0.006. Canonical buyer start is https://gpt55.558686.xyz/x402/service and the route guide is https://gpt55.558686.xyz/x402/mcp-first-purchase-kit.
https://gpt55.558686.xyz/v1/tools/answer
$0.00GET https://gpt55.558686.xyz/v1/tools/answerhttps://gpt55.558686.xyz/v1/tools/code-review
$0.00GET https://gpt55.558686.xyz/v1/tools/code-reviewhttps://gpt55.558686.xyz/v1/tools/color-convert
$0.00GET https://gpt55.558686.xyz/v1/tools/color-converthttps://gpt55.558686.xyz/v1/tools/diff-lines
$0.00GET https://gpt55.558686.xyz/v1/tools/diff-lineshttps://gpt55.558686.xyz/v1/tools/domain-extract
$0.00GET https://gpt55.558686.xyz/v1/tools/domain-extracthttps://gpt55.558686.xyz/v1/tools/email-normalize
$0.00GET https://gpt55.558686.xyz/v1/tools/email-normalizehttps://gpt55.558686.xyz/v1/tools/extract-json
$0.00GET https://gpt55.558686.xyz/v1/tools/extract-jsonhttps://gpt55.558686.xyz/v1/tools/html-entity-codec
$0.00GET https://gpt55.558686.xyz/v1/tools/html-entity-codechttps://gpt55.558686.xyz/v1/tools/html-strip
$0.00GET https://gpt55.558686.xyz/v1/tools/html-striphttps://gpt55.558686.xyz/v1/tools/http-status
$0.00GET https://gpt55.558686.xyz/v1/tools/http-statushttps://gpt55.558686.xyz/v1/tools/json-minify
$0.00GET https://gpt55.558686.xyz/v1/tools/json-minifyhttps://gpt55.558686.xyz/v1/tools/json-validate
$0.00GET https://gpt55.558686.xyz/v1/tools/json-validatehttps://gpt55.558686.xyz/v1/tools/jwt-decode
$0.00GET https://gpt55.558686.xyz/v1/tools/jwt-decodehttps://gpt55.558686.xyz/v1/tools/query-parse
$0.00GET https://gpt55.558686.xyz/v1/tools/query-parsehttps://gpt55.558686.xyz/v1/tools/regex-match
$0.00GET https://gpt55.558686.xyz/v1/tools/regex-matchhttps://gpt55.558686.xyz/v1/tools/slugify
$0.00GET https://gpt55.558686.xyz/v1/tools/slugifyhttps://gpt55.558686.xyz/v1/tools/sort-lines
$0.00GET https://gpt55.558686.xyz/v1/tools/sort-lineshttps://gpt55.558686.xyz/v1/tools/summarize
$0.00GET https://gpt55.558686.xyz/v1/tools/summarizehttps://gpt55.558686.xyz/v1/tools/text-stats
$0.00GET https://gpt55.558686.xyz/v1/tools/text-statshttps://gpt55.558686.xyz/v1/tools/timestamp
$0.00GET https://gpt55.558686.xyz/v1/tools/timestamphttps://gpt55.558686.xyz/v1/tools/translate
$0.00GET https://gpt55.558686.xyz/v1/tools/translatehttps://gpt55.558686.xyz/v1/tools/unique-lines
$0.00GET https://gpt55.558686.xyz/v1/tools/unique-lineshttps://gpt55.558686.xyz/v1/tools/uri-codec
$0.00GET https://gpt55.558686.xyz/v1/tools/uri-codechttps://gpt55.558686.xyz/v1/tools/url-links
$0.00GET https://gpt55.558686.xyz/v1/tools/url-linkshttps://gpt55.558686.xyz/v1/tools/url-metadata
$0.00GET https://gpt55.558686.xyz/v1/tools/url-metadatahttps://gpt55.558686.xyz/v1/tools/url-parse
$0.00GET https://gpt55.558686.xyz/v1/tools/url-parsehttps://gpt55.558686.xyz/v1/tools/url-text
$0.00GET https://gpt55.558686.xyz/v1/tools/url-texthttps://gpt55.558686.xyz/v1/tools/uuid
$0.00GET https://gpt55.558686.xyz/v1/tools/uuidhttps://gpt55.558686.xyz/v1/tools/x402-batch-quote-inspector
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-batch-quote-inspectorhttps://gpt55.558686.xyz/v1/tools/x402-buyer-shortlist
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-buyer-shortlisthttps://gpt55.558686.xyz/v1/tools/x402-listing-seo-audit
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-listing-seo-audithttps://gpt55.558686.xyz/v1/tools/x402-market-benchmark
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-market-benchmarkhttps://gpt55.558686.xyz/v1/tools/x402-opportunity-finder
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-opportunity-finderhttps://gpt55.558686.xyz/v1/tools/x402-site-audit
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-site-audithttps://gpt55.558686.xyz/v1/x402-ping
$0.00GET https://gpt55.558686.xyz/v1/x402-pingApproval Risk Auditor x402 Agent
$0.00GET https://gpt55.558686.xyz/approval-risk-auditor/entrypoints/audit_approvals/invokex402 EVM approval risk auditor. Scans ERC20, ERC721, and ERC1155 approvals, flags unlimited, stale, unknown, non-verified, and high-value approvals, and returns unsigned revoke calldata only. Costs $0.01 over x402 Base USDC.
Bounty Ops Radar x402 Report
$0.00GET https://gpt55.558686.xyz/v1/paid/bounty-ops-radar-reportPaid Bounty Ops Radar report snapshot for agents, bounty teams, and marketplaces. Returns public-read-only GitHub PR follow-up metrics, bounty opportunity evidence, buyer links, x402 metadata, and pilot purchase context. Costs $0.049 exact x402 Base USDC and has near-zero upstream model cost.
Bridge Route Pinger x402 Agent
$0.00GET https://gpt55.558686.xyz/bridge-route-pinger/entrypoints/ping_bridge_routes/invokex402 bridge route quote agent. Uses LI.FI quote data to return routes, ETA, gas, fees, output amounts, and requirements for cross-chain transfers. Costs $0.01 over x402 Base USDC.
EIP-712 Signature Risk Decoder
$0.00GET https://gpt55.558686.xyz/v1/paid/eip712-signature-risk-decoderMachine-buyable EIP-712 pre-signing risk decoder for wallets, agents, and security tools. Inspects typed-data domains, Permit and Permit2 fields, spender, value, deadline, nonce, chainId, and verifyingContract risk before a user signs. Costs $0.01 exact x402 Base USDC and never asks for private keys or broadcasts transactions.
EVM Transaction Risk Decoder
$0.00GET https://gpt55.558686.xyz/v1/paid/evm-transaction-risk-decoderMachine-buyable EVM transaction pre-signing risk decoder. Decodes common approve, transfer, setApprovalForAll, permit, and multicall calldata, flags risky allowances, and returns a wallet or agent confirmation checklist. Costs $0.01 exact x402 Base USDC and requires no private key or transaction broadcast.
Fresh Markets Watch x402 Agent
$0.00GET https://gpt55.558686.xyz/fresh-markets-watch/entrypoints/watch_fresh_markets/invokex402 AMM factory event scanner. Finds recent PairCreated and PoolCreated logs with decoded market addresses, token addresses, block evidence, and warnings. Costs $0.01 over x402 Base USDC.
GPT-5.5 x402 AgentCore Integration Kit
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-agentcore-integration-kit?base_url=https%3A%2F%2Fgpt55.558686.xyz&service_name=GPT-5.5%20x402%20Gateway&agent_name=research-agent&max_usdc_per_call=0.01Generate AgentCore Gateway, CDP Bazaar, MCP, curl, and x402 buyer integration snippets for paid tool routing. Includes Bazaar search terms, route hints, spend caps, quote checks, and verification checklist. Costs $0.006 over x402 Base USDC.
GPT-5.5 x402 Base Builder Funding Readiness
$0.00GET https://gpt55.558686.xyz/v1/paid/x402-base-builder-funding-readinessMachine-buyable Base/x402 builder funding-readiness report. Scores shipped x402 infrastructure, external-only settlement evidence, directory visibility, buyer conversion gaps, Base builder funding targets, and next actions. Costs $0.019 exact x402 Base USDC and has near-zero upstream model cost.
GPT-5.5 x402 Batch Quote Inspector
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-batch-quote-inspector?urls=%5B%22https%3A%2F%2Fgpt55.558686.xyz%2Fv1%2Fx402-ping%22%2C%22https%3A%2F%2Fgpt55.558686.xyz%2Fv1%2Ftools%2Fx402-quote-inspector%22%5D&method=GETBatch inspect up to 10 x402 endpoints without paying them. Useful for agents comparing quote metadata, schemes, networks, payTo addresses, and buyer-readiness. Costs $0.002 over x402 Base USDC.
GPT-5.5 x402 Buyer Shortlist
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-buyer-shortlist?urls=%5B%22https%3A%2F%2Fgpt55.558686.xyz%22%5D&query=quote&limit=5&verify_limit=5Build a buyer shortlist for x402 services with discovery fetches, advertised price ranking, live 402 quote checks, scheme/network/payTo verification, and warnings. Costs $0.005 over x402 Base USDC.
GPT-5.5 x402 Growth Plan
$0.00GET https://gpt55.558686.xyz/v1/paid/x402-growth-planShort canonical x402 seller growth-plan endpoint for machine buyers. Generates a prioritized directory visibility, pricing, buyer onboarding, search keyword, and retest checklist for x402 and paid MCP sellers. Costs $0.009 over x402 Base USDC and has near-zero upstream model cost.
GPT-5.5 x402 Listing SEO Audit
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-listing-seo-audit?url=https%3A%2F%2Fgpt55.558686.xyz&query=gpt-5.5%20x402&include_market=trueAudit x402 listing SEO, market positioning, discovery metadata, price signals, OpenAPI, llms.txt, sitemap, and buyer-readiness signals. Costs $0.008 over x402 Base USDC.
GPT-5.5 x402 Market Benchmark
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-market-benchmark?query=ai&sources=%5B%22x402.direct%22%2C%22x402scout%22%2C%22cdp-bazaar%22%5D&limit=50&pages=1&page_size=50Compare sampled x402 AI-like listings and prices across public directories, including x402Scout and CDP Bazaar. Designed for sellers tuning price and copy. Costs $0.006 over x402 Base USDC.
GPT-5.5 x402 Market Benchmark
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-market-benchmark?query=ai&sources=%5B%22402index%22%2C%22x402.direct%22%2C%22x402scout%22%2C%22cdp-bazaar%22%5D&limit=50&pages=1&page_size=50Compare sampled x402 AI-like listings and prices across public directories, including 402Index, x402Scout, and CDP Bazaar. Designed for sellers tuning price and copy. Costs $0.006 over x402 Base USDC.
GPT-5.5 x402 Opportunity Finder
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-opportunity-finder?focus=ai-tools&sources=%5B%22x402.direct%22%2C%22x402scout%22%2C%22agora402%22%2C%22payai-discovery%22%5D&limit=80Scan public x402 directories for underserved product opportunities, candidate keywords, pricing bands, and directory positioning notes. Costs $0.009 over x402 Base USDC.
GPT-5.5 x402 Opportunity Finder
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-opportunity-finder?focus=ai-tools&sources=%5B%22402index%22%2C%22x402.direct%22%2C%22x402scout%22%2C%22agora402%22%2C%22payai-discovery%22%5D&limit=80Scan public x402 directories including 402Index for underserved product opportunities, candidate keywords, pricing bands, and directory positioning notes. Costs $0.009 over x402 Base USDC.
GPT-5.5 x402 Seller Action Plan
$0.00POST https://gpt55.558686.xyz/v1/paid/x402-seller-action-planShort stable x402 seller-growth endpoint. Generates a prioritized directory visibility, pricing, buyer onboarding, and retest checklist for x402 and paid MCP sellers. Costs $0.019 over x402 Base USDC.
GPT-5.5 x402 Seller Intel
$0.00GET https://gpt55.558686.xyz/v1/paid/x402-seller-intelShort canonical x402 seller-intelligence endpoint for machine buyers. Bundles market benchmark, listing SEO, opportunity scan, directory rank snapshot, buyer shortlist, and MCP integration kit. Costs $0.01 over x402 Base USDC and has near-zero upstream model cost.
GPT-5.5 x402 Seller Intelligence Bundle
$0.00POST https://gpt55.558686.xyz/v1/paid/x402-seller-intelligence-bundleShort stable x402 seller-intelligence bundle. Combines market benchmark, listing SEO audit, opportunity scan, directory rank snapshot, buyer shortlist, and MCP integration kit. Costs $0.029 over x402 Base USDC.
GPT-5.5 x402 Site Audit
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-site-audit?url=https%3A%2F%2Fgpt55.558686.xyz&include_optional=trueDeterministic x402/API buyer-readiness audit for sellers and agents. Checks discovery, OpenAPI, pricing, llms.txt, robots, sitemap, MCP metadata, health, endpoint counts, and payment quote metadata. Costs $0.001 over x402 Base USDC.
GPT55 API Key + URL Quota Pack
$0.00GET https://gpt55.558686.xyz/v1/paid/api-codex-key-pack-10OpenAI-compatible API key plus base URL delivered after x402 payment. Best for agents and apps that need low-latency, high-frequency model calls without signing a payment header on every request. The paid response returns the buyer-owned API key, base_url https://sub2api.558686.xyz/v1, chat completions URL, models URL, quota metadata, and receipt evidence. Callable model range now starts with GPT-5.6 Soul using upstream gpt-5.6-sol, plus gpt-5.6 alias, gpt-5.4-mini, gpt-5.5, gpt-5.3-codex, and gpt-5.4. $10 model quota pack live quote is $1.11112 over x402 Base USDC or Solana USDC when advertised.
GPT55 GPT-5.6 Luna Standard - $0.00293 Demand-First
$0.0029POST https://gpt55.558686.xyz/v1/chat/completions/standard?listing=demand-first-standard-00293One OpenAI-compatible GPT-5.6 Luna Standard result for $0.00293 over exact x402 Base USDC. Browser wallet checkout and agent fallback are available without sending a private key to GPT55.
GPT55 GPT-5.6 Soul Chat x402
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/gpt-5.6-solFlagship OpenAI-compatible GPT-5.6 Soul chat route backed by upstream gpt-5.6-sol for advanced reasoning, production work, code, and structured responses. Quote-first x402 endpoint with Base USDC and advertised Solana USDC settlement options. Live cap is $0.091 per request, matching the GPT-5.5 premium price.
GPT55 gpt-5.3-codex Chat x402
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/gpt-5.3-codexOpenAI-compatible coding-agent chat route for patch planning, code review, and structured development output. Quote-first x402 endpoint with Base USDC and advertised Solana USDC settlement options. Live cap is $0.034 per request.
GPT55 gpt-5.4-mini Chat x402
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/gpt-5.4-miniLow-cost OpenAI-compatible chat completion route for mainstream short answers, routing decisions, extraction helpers, and buyer trials. Quote-first x402 endpoint with Base USDC and advertised Solana USDC settlement options. Live cap is $0.00293 per request.
https://gpt55.558686.xyz/v1/tools/case-convert
$0.00GET https://gpt55.558686.xyz/v1/tools/case-converthttps://gpt55.558686.xyz/v1/tools/base64-codec
$0.00GET https://gpt55.558686.xyz/v1/tools/base64-codechttps://gpt55.558686.xyz/v1/tools/hash-text
$0.00GET https://gpt55.558686.xyz/v1/tools/hash-texthttps://gpt55.558686.xyz/v1/tools/x402-directory-rank-tracker
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-directory-rank-trackerGPT55 Wallet Signing Safety Pack
$0.00POST https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-packBuyer-owned x402 wallet signing safety pack for agents and wallets. Returns typed-data, calldata, chain, spender, allowance, receipt, and private-key boundary checks after payment. First-purchase activation is https://gpt55.558686.xyz/x402/wallet-signing-safety-pack.json and the dedicated buyer runtime is https://gpt55.558686.xyz/x402/wallet-signing-safety-pack-first-payment-client.mjs. The standard Payment-Required header now includes firstPaymentClient, paymentClientUrl, paymentActivationUrl, and sameRequestRetryRequired so header-only x402 clients can download the buyer-owned runtime, sign locally, and retry the same request with X-PAYMENT. Private keys are never sent to GPT55; use PAY_REAL_X402=1 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY in the downloaded client only from the buyer environment. Live quote is $0.018 exact x402 Base USDC.
Lending Liquidation Sentinel x402 Agent
$0.00GET https://gpt55.558686.xyz/lending-liquidation-sentinel/entrypoints/monitor_liquidation/invokex402 lending risk monitor. Reads Aave V3 account data and returns health factor, collateral/debt USD, buffer percent, and liquidation alert status. Costs $0.01 over x402 Base USDC.
Perps Funding Pulse x402 Agent
$0.00GET https://gpt55.558686.xyz/perps-funding-pulse/entrypoints/get_funding_pulse/invokex402 perpetual futures funding monitor. Returns live funding, open interest, mark/oracle price, and venue warnings from public market data. Costs $0.01 over x402 Base USDC.
Slippage Sentinel x402 Agent
$0.00GET https://gpt55.558686.xyz/slippage-sentinel/entrypoints/estimate_slippage/invokex402 swap slippage estimator. Suggests safe slippage from pool depth, recent trade size, volatility, fees, and safety margin with explicit source warnings. Costs $0.01 over x402 Base USDC.
GPT-5.5 GET Chat CDP/Bazaar Compatible x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chat-cdpCDP/Bazaar-compatible GET GPT-5.5 compact chat endpoint for agents and API directories. Uses x402 exact Base USDC, costs $0.001 per call, and keeps the lower-price /v1/paid/chat $0.0001 entrypoint available for directories that support smaller payments.
GPT-5.5 GET Chat x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chat?q=Summarize%20x402%20in%20one%20sentence&max_tokens=64Directory-friendly GET GPT-5.5 compact chat endpoint for agents and API directories. Uses x402 exact Base USDC, costs $0.0001 per call, and supports q/prompt/message plus max_tokens query parameters.
GPT-5.5 GET Chat x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chatDirectory-friendly canonical GET GPT-5.5 x402 chat endpoint for agents and API directories. OpenAI-compatible GPT-5.5 chat over exact x402 Base USDC, costs $0.0001 per compact call, supports q/prompt/message plus max_tokens query parameters, and has buyer docs at /x402/chat.json plus /x402/quickstart.json.
GPT-5.5 GET Long Chat 4096 x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chat-long?q=Write%20a%20concise%20technical%20summary&max_tokens=256Directory-friendly GET GPT-5.5 long-output chat endpoint for agents and API directories. Uses x402 exact Base USDC, costs $0.002134 per call, and supports up to 4096 output tokens.
GPT-5.5 GET Long Chat 4096 x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chat-longDirectory-friendly GET GPT-5.5 long-output chat endpoint for agents and API directories. Uses x402 exact Base USDC, costs $0.002134 per call, and supports up to 4096 output tokens.
GPT-5.5 GET True Max-Output Chat 128k x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chat-max?q=Write%20a%20detailed%20technical%20report&max_tokens=512Directory-friendly GET GPT-5.5 true max-output chat endpoint for agents and API directories. Uses x402 exact Base USDC, costs $0.066667 per call, and supports up to 128000 output tokens.
GPT-5.5 GET True Max-Output Chat 128k x402
$0.00GET https://gpt55.558686.xyz/v1/paid/chat-maxDirectory-friendly GET GPT-5.5 true max-output chat endpoint for agents and API directories. Uses x402 exact Base USDC, costs $0.066667 per call, and supports up to 128000 output tokens.
GPT-5.5 Long Chat x402 4096
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/longOpenAI-compatible GPT-5.5 long chat completion. Fixed exact x402 Base USDC price $0.002134, up to 4096 output tokens, no subscription and no public API key required.
GPT-5.5 True Max-Output Chat x402 128k
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/max-outputOpenAI-compatible GPT-5.5 true max-output chat completion. Fixed exact x402 Base USDC price $0.066667, up to 128000 output tokens, no subscription and no public API key required.
GPT-5.5 x402 Directory Rank Tracker
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-directory-rank-tracker?url=https%3A%2F%2Fgpt55.558686.xyz&pay_to=0x1f0130669ca6fd02e025a984cc038f139df19a2f&query=gpt-5.5%20x402&sources=%5B%22cdp-bazaar%22%2C%22x402.direct%22%2C%22x402scout%22%2C%22payai-discovery%22%5D&pages=2&page_size=50Track sampled first-seen rank and visibility across x402 directories by host, payTo, query, and service URL. Returns matched sources, competitor context, and concrete visibility fixes. Costs $0.01 over x402 Base USDC.
GPT-5.5 x402 Directory Rank Tracker
$0.00GET https://gpt55.558686.xyz/v1/tools/x402-directory-rank-tracker?url=https%3A%2F%2Fgpt55.558686.xyz&pay_to=0x1f0130669ca6fd02e025a984cc038f139df19a2f&query=gpt-5.5%20x402&sources=%5B%22cdp-bazaar%22%2C%22402index%22%2C%22x402.direct%22%2C%22x402scout%22%2C%22payai-discovery%22%5D&pages=2&page_size=50Track sampled first-seen rank and visibility across x402 directories by host, payTo, query, and service URL. Returns matched sources, competitor context, and concrete visibility fixes. Costs $0.01 over x402 Base USDC.
GPT55 gpt-5.4-mini 100 Call Pack
$0.00GET https://gpt55.558686.xyz/v1/paid/call-packs/gpt-5.4-mini-100Prepaid GPT55 call credits for repeated gpt-5.4-mini chat calls. Best for buyers that want fewer x402 payment steps: one purchase covers 100 requests, returns a reusable pack token, and avoids per-call setup cost. Live quote is $0.2344 over x402 Base USDC or Solana USDC when advertised.
GPT-5.5 x402 Quote Inspector
Not used$0.00GET https://gpt55.558686.xyz/v1/tools/x402-quote-inspector?url=https%3A%2F%2Fgpt55.558686.xyz%2Fv1%2Fx402-ping&method=GETInspect a public x402 endpoint quote without paying the target. Returns scheme, amount, network, asset, payTo, resource metadata, and buyer-readiness warnings. Costs $0.0005 over x402 Base USDC.
GPT55 gpt-5.5 Chat x402
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/gpt-5.5Premium OpenAI-compatible GPT-5.5 chat route for stronger reasoning, production work, code, and structured responses. Quote-first x402 endpoint with Base USDC and advertised Solana USDC settlement options. Live cap is $0.091 per request.
https://gpt55.558686.xyz/v1/chat/completions/standard
$0.00POST https://gpt55.558686.xyz/v1/chat/completions/standardhttps://gpt55.558686.xyz/v1/tools/evm-wallet-balance
$0.00GET https://gpt55.558686.xyz/v1/tools/evm-wallet-balanceChecks
reachable
valid
2026-08-24T21:15:15.911Z
Recheck delta: +15 (55 → 70)
No settlement evidence found in chain signals.
Gateway routing
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