{ "x402Version": 2, "id": 4687, "slug": "4687", "resource": "https://context-relay.contextrelay.workers.dev/api/v1/context", "description": "URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens saved. Use before an agent summarizes, answers questions from, or cites a long or noisy URL. Deterministic and model-free. Public HTML only; no PDFs, logins, or JavaScript-only pages.", "type": "http", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0x08B11EA90aEb253eF0F954BE108A12E6783D8189", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "5000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "bazaar": { "info": { "input": { "body": { "max_price_usd": 0.005, "max_tokens": 2000, "question": "What is x402 designed to enable for agents and APIs?", "url": "https://docs.cdp.coinbase.com/x402/welcome" }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "context": { "citations": [ { "excerpt": "x402 enables HTTP-native payments for APIs and agents.", "excerpt_sha256": "0000000000000000000000000000000000000000000000000000000000000000", "id": "c1", "locator": "p[2]" } ], "estimated_tokens_saved": 1200, "markdown": "# Welcome to x402\n\n## c1 ยท p[2]\n\nx402 enables HTTP-native payments for APIs and agents.", "raw_token_estimate": 1250, "returned_token_estimate": 50, "token_estimate_method": "characters_divided_by_4" }, "context_id": "ctx_0123456789abcdef", "delivery": { "cache_status": "miss", "cost_class": "fresh_static", "currency": "USDC", "economics": { "estimate_basis": "configured_route_estimate", "estimated_gross_margin": 0.8, "estimated_gross_profit_usd": 0.004, "estimated_variable_cost_usd": 0.001 }, "generated_at": "2026-01-01T00:00:00.250Z", "latency_ms": 250, "network": "eip155:8453", "payment": { "failed_delivery_charge_policy": "not_settled_when_handler_status_is_400_or_higher", "protocol": "x402", "settlement_receipt_header": "PAYMENT-RESPONSE", "settlement_status": "reported_in_response_header", "verification_status": "verified" }, "price_usd": 0.005, "route": "public_html_direct", "status": "delivered" }, "receipt_id": "rcpt_01234567-89ab-cdef-0123-456789abcdef", "safety": { "prompt_injection_signals": [], "public_source_only": true, "robots_policy": "allowed", "shared_cache_eligible": true, "source_directives": [] }, "schema_version": "context-receipt.v1", "source": { "canonical_url": "https://docs.cdp.coinbase.com/x402/welcome", "content_sha256": "0000000000000000000000000000000000000000000000000000000000000000", "content_type": "text/html; charset=utf-8", "fetched_at": "2026-01-01T00:00:00.000Z", "final_url": "https://docs.cdp.coinbase.com/x402/welcome", "requested_url": "https://docs.cdp.coinbase.com/x402/welcome", "title": "Welcome to x402" }, "transformation": { "max_tokens": 2000, "method": "deterministic_extract", "model_used": false, "pipeline_version": "html-deterministic.v1", "question": "What is x402 designed to enable for agents and APIs?" } }, "type": "json" } }, "routeTemplate": "/api/v1/context", "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "additionalProperties": false, "properties": { "freshness_seconds": { "default": 3600, "maximum": 86400, "minimum": 60, "type": "integer" }, "max_price_usd": { "description": "Abort before retrieval if the fixed service price exceeds this amount.", "minimum": 0, "type": "number" }, "max_tokens": { "default": 4000, "maximum": 12000, "minimum": 250, "type": "integer" }, "question": { "description": "Optional task or question used to rank relevant passages.", "maxLength": 2000, "type": "string" }, "url": { "description": "Public HTTP or HTTPS page to retrieve.", "format": "uri", "maxLength": 4096, "type": "string" } }, "required": [ "url" ], "type": "object" }, "bodyType": { "enum": [ "json", "form-data", "text" ], "type": "string" }, "method": { "enum": [ "POST" ], "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method", "bodyType", "body" ], "type": "object" }, "output": { "properties": { "example": { "additionalProperties": false, "properties": { "context": { "additionalProperties": false, "properties": { "citations": { "items": { "additionalProperties": false, "properties": { "excerpt": { "type": "string" }, "excerpt_sha256": { "pattern": "^[a-f0-9]{64}$", "type": "string" }, "id": { "type": "string" }, "locator": { "type": "string" } }, "required": [ "id", "locator", "excerpt", "excerpt_sha256" ], "type": "object" }, "minItems": 1, "type": "array" }, "estimated_tokens_saved": { "minimum": 0, "type": "integer" }, "markdown": { "type": "string" }, "raw_token_estimate": { "minimum": 1, "type": "integer" }, "returned_token_estimate": { "minimum": 1, "type": "integer" }, "token_estimate_method": { "const": "characters_divided_by_4" } }, "required": [ "markdown", "citations", "raw_token_estimate", "returned_token_estimate", "estimated_tokens_saved", "token_estimate_method" ], "type": "object" }, "context_id": { "type": "string" }, "delivery": { "additionalProperties": false, "properties": { "cache_status": { "enum": [ "hit", "miss" ] }, "cost_class": { "enum": [ "cached", "fresh_static" ] }, "currency": { "const": "USDC" }, "economics": { "additionalProperties": false, "properties": { "estimate_basis": { "const": "configured_route_estimate" }, "estimated_gross_margin": { "type": "number" }, "estimated_gross_profit_usd": { "type": "number" }, "estimated_variable_cost_usd": { "minimum": 0, "type": "number" } }, "required": [ "estimate_basis", "estimated_variable_cost_usd", "estimated_gross_profit_usd", "estimated_gross_margin" ], "type": "object" }, "generated_at": { "format": "date-time", "type": "string" }, "latency_ms": { "minimum": 0, "type": "integer" }, "network": { "type": "string" }, "payment": { "additionalProperties": false, "properties": { "failed_delivery_charge_policy": { "const": "not_settled_when_handler_status_is_400_or_higher" }, "protocol": { "const": "x402" }, "settlement_receipt_header": { "enum": [ "PAYMENT-RESPONSE", "x402/payment-response", null ] }, "settlement_status": { "enum": [ "reported_in_response_header", "reported_in_mcp_meta", "not_applicable" ] }, "verification_status": { "enum": [ "verified", "internal_unverified" ] } }, "required": [ "protocol", "verification_status", "settlement_status", "settlement_receipt_header", "failed_delivery_charge_policy" ], "type": "object" }, "price_usd": { "minimum": 0, "type": "number" }, "route": { "enum": [ "cache", "public_html_direct" ] }, "status": { "const": "delivered" } }, "required": [ "status", "route", "cache_status", "price_usd", "currency", "network", "cost_class", "economics", "latency_ms", "generated_at", "payment" ], "type": "object" }, "receipt_id": { "type": "string" }, "safety": { "additionalProperties": false, "properties": { "prompt_injection_signals": { "items": { "type": "string" }, "type": "array" }, "public_source_only": { "const": true }, "robots_policy": { "enum": [ "allowed", "not_present", "unavailable_4xx" ] }, "shared_cache_eligible": { "type": "boolean" }, "source_directives": { "items": { "type": "string" }, "type": "array" } }, "required": [ "public_source_only", "shared_cache_eligible", "source_directives", "robots_policy", "prompt_injection_signals" ], "type": "object" }, "schema_version": { "const": "context-receipt.v1" }, "source": { "additionalProperties": false, "properties": { "canonical_url": { "format": "uri", "type": "string" }, "content_sha256": { "pattern": "^[a-f0-9]{64}$", "type": "string" }, "content_type": { "type": "string" }, "fetched_at": { "format": "date-time", "type": "string" }, "final_url": { "format": "uri", "type": "string" }, "requested_url": { "format": "uri", "type": "string" }, "title": { "type": "string" } }, "required": [ "requested_url", "canonical_url", "final_url", "title", "fetched_at", "content_type", "content_sha256" ], "type": "object" }, "transformation": { "additionalProperties": false, "properties": { "max_tokens": { "maximum": 12000, "minimum": 250, "type": "integer" }, "method": { "const": "deterministic_extract" }, "model_used": { "const": false }, "pipeline_version": { "const": "html-deterministic.v1" }, "question": { "type": [ "string", "null" ] } }, "required": [ "pipeline_version", "method", "question", "max_tokens", "model_used" ], "type": "object" } }, "required": [ "schema_version", "receipt_id", "context_id", "source", "transformation", "context", "delivery", "safety" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } } }, "tags": [ "bazaar" ], "sourceHost": "context-relay.contextrelay.workers.dev", "lastUpdated": "2026-09-14T19:49:34.504Z", "quality": { "calls30d": 2, "uniquePayers30d": 2, "lastCalledAt": "2026-09-14T19:49:33.801Z" }, "liveness": {}, "verified": false, "featured": false, "provider": { "host": "context-relay.contextrelay.workers.dev", "manifest_name": "context-relay.contextrelay.workers.dev", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-09-18T22:00:31.484Z" } }