{"data":{"context_advisory":{"advisory_url":"/vendor/circle/AgentContext.json","has_advisory":true,"note":"An AgentContext record is available for this vendor containing independently-verified discrepancies and human handoff guidance. Fetch advisory_url before completing any transaction."},"fallback":{"has_agent_interface":"true","indirect_via":null,"notes":"Circle (circle.com) has confirmed agent-callable surfaces via its own MCP server, x402 ecosystem participation as USDC issuer/wallet provider, and MPP as a co-author of the USDC specification. Its proprietary REST APIs (both the financial platform at developers.circle.com and the community platform at api.circle.so) are also open and documented. Scraping is explicitly prohibited by Circle's own Platform Terms of Service.","recommended_next_action":"Verify the MCP server at developers.circle.com/ai/mcp directly \u2014 confirm endpoint URL, auth mechanism, and callable methods, then cross-check whether the x402 and MPP confirmed_present findings have matured toward stable callable surfaces for production use.","scrape_explicitly_prohibited":true},"fleet_confirmed":{"last_evaluated":null,"methodology_version":"v1","status":"insufficient_data","window":"trailing_30_days"},"protocols":[{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"Circle (circle.com) is not among the 50+ named launch partners for the A2A protocol (which included Atlassian, Box, PayPal, Salesforce, SAP, ServiceNow, Workday, and UKG) nor among the Linux Foundation A2A project founding members (AWS, Cisco, Google, Microsoft, Salesforce, SAP, ServiceNow). Circle launched a 'Circle Agent Stack' product suite (Agent Wallets, Agent Marketplace, Nanopayments, Circle CLI) focused on USDC payment rails and blockchain infrastructure for AI agents \u2014 a different capability layer with no documented A2A adoption. No vendor-specific evidence of A2A implementation or partnership found.","protocol":"A2A","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"No evidence found that circle.com (the community-building platform) is a participant in or has implemented the Agentic Commerce Protocol. Confirmed launch and early partners in ACP include URBN (Anthropologie, Free People, Urban Outfitters), Coach, Kate Spade, Revolve, Ashley Furniture, Shopify, and Etsy \u2014 none of these searches surfaced circle.com. Circle is a community/membership platform rather than an e-commerce merchant, which structurally limits its relevance to ACP's checkout-focused use case.","protocol":"ACP","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"No evidence found that circle.com is among the 60+ AP2 launch partners or any subsequent AP2 coalition expansion. Named AP2 adopters include Mastercard, PayPal, American Express, Adyen, Coinbase, Etsy, Intuit, Revolut, Salesforce, Worldpay, and Forter. Circle (the company) appears only in the context of ACP/lobster.cash (a separate agentic payments initiative), not AP2.","protocol":"AP2","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-28","last_checked_human_verified":null,"notes":"Original confirmed_present claim lacked any supporting detail (no role, no notes) and was discarded pending re-verification.","protocol":"MCP","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":"open","auth":null,"endpoint":{"docs_url":null,"publicly_callable":false},"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"Circle published the official USDC specification for MPP in 2026, establishing USDC as the stablecoin settlement layer for the protocol developed in collaboration with Stripe and Tempo. Circle's role is standards authorship and asset issuance, not direct endpoint operation \u2014 actual callable endpoints are hosted by Stripe and Tempo. No Circle-hosted MPP endpoint was identified.","protocol":"MPP","role":"Circle co-authored the USDC specification for MPP and acts as the stablecoin-layer contributor, supplying USDC as the on-chain settlement asset for Tempo's rail within MPP transactions; Circle itself is not a payment processor in the protocol stack but is a key standards author and asset issuer.","sketchiness_rating":"insufficient_data","stability_rating":"new","status":"confirmed_present"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":" 2026-06-29","last_checked_human_verified":null,"notes":" No evidence that circle.com (Circle Internet, the stablecoin/fintech platform) has implemented NLWeb. Known NLWeb launch partners include O'Reilly and Redfin; circle.com does not appear among them. Circle does operate an MCP server (developers.circle.com/ai/mcp), but this is a separately-published, developer-facing API integration unrelated to the NLWeb framework's /ask or /mcp endpoints.","protocol":"NLWeb","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-28","last_checked_human_verified":null,"notes":null,"protocol":"UCP","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"No evidence that circle.com (Circle, the community platform) has implemented or announced WebMCP support. Searches for 'circle.com WebMCP' returned no relevant results \u2014 named early adopters and examples in WebMCP coverage include HubSpot, Stripe, and CircleCI (a separate entity), none of which is circle.com. The protocol itself is in early preview (Chrome 146 Canary) with very limited adoption, making absence here unsurprising.","protocol":"WebMCP","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":"open","auth":{"type":"Circle Wallet credentials (API key-based) required to fund and authorize USDC payments sent via x402 payment headers"},"endpoint":{"docs_url":null,"publicly_callable":true},"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"Circle published an official integration guide (https://www.circle.com/blog/autonomous-payments-using-circle-wallets-usdc-and-x402) describing how Circle Wallets and USDC are used as the payment layer for x402 transactions by autonomous agents. Circle is named on Coinbase's x402 launch page as a key ecosystem partner, with Circle's VP of Product endorsing the protocol. Circle's participation is as the stablecoin issuer and wallet provider, not as the protocol originator (Coinbase/Cloudflare).","protocol":"x402","role":"USDC issuer and wallet provider enabling x402 client-side payments; Circle Wallets serve as the payment instrument for AI agents making USDC micropayments over HTTP 402, not as an x402 server or facilitator.","sketchiness_rating":"clean","stability_rating":"new","status":"confirmed_present"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"No evidence found that circle.com (the community platform) has built or submitted an app to OpenAI's ChatGPT Apps platform via the Apps SDK. Search results surfaced only third-party automation connectors (Make, Zapier, Pipedream) linking Circle's REST API to OpenAI services, plus an unrelated prompt-based GPT named 'circle' (chatgpt.com/g/g-fVUlXLTU4-circle), which is not an Apps SDK integration. Circle's own April 2026 product release positions its MCP server as its primary AI integration story, with no mention of a ChatGPT Apps SDK submission.","protocol":"openai_apps_sdk","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"not_found"},{"access_tier":"open","auth":{"type":"Bearer token; sandbox keys prefixed TEST_API_KEY:, production keys prefixed LIVE_API_KEY:; developer-controlled wallet write operations additionally require an RSA-encrypted entity secret ciphertext per request"},"endpoint":{"docs_url":"https://developers.circle.com/api-reference","publicly_callable":true},"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"Circle's financial platform exposes a suite of REST APIs documented at https://developers.circle.com/api-reference covering USDC issuance, wallet-as-a-service, payments, and payouts. Authentication uses a Bearer token with key prefixes that distinguish sandbox from production environments. Sandbox signup is self-serve; Circle Mint (institutional USDC minting/redemption) requires separate approval.","protocol":"proprietary","role":"Circle Financial REST API: USDC payments, wallet creation/management, cross-chain transfers, payouts, and smart contract deployment across multiple blockchains. Sandbox environment is self-serve; production access for Circle Mint requires institutional account approval.","sketchiness_rating":"clean","stability_rating":"new","status":"confirmed_present"},{"access_tier":"platform_mediated","auth":{"type":"Admin API: static API token generated from community admin dashboard (Developers -> Tokens); Headless/Member API: member-specific JWT generated via Auth API"},"endpoint":{"docs_url":"https://api.circle.so/","publicly_callable":true},"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"notes":"The circle.so community platform exposes two distinct but related API surfaces documented at https://api.circle.so/: the Admin API (community-admin-scoped, available on Business plan and above) and the Headless/Member API (member-scoped, also Business plan+). These are structurally separate from Circle's financial APIs on circle.com and serve entirely different use cases. An Admin API v2 was announced for September 2024.","protocol":"proprietary","role":"Circle Community Platform REST API (circle.so): Admin API for community-level automation, member management, and data access; separate Headless/Member API for embedding Circle community features (discussions, events, notifications, feed) into third-party apps on behalf of authenticated members.","sketchiness_rating":"clean","stability_rating":"new","status":"confirmed_present"},{"access_tier":null,"auth":null,"endpoint":null,"last_checked_agentic_scan":null,"last_checked_human_verified":null,"notes":"No usable finding available for this protocol (no legitimate scan available within the candidate window).","protocol":"self_declared_discovery","role":null,"sketchiness_rating":"insufficient_data","stability_rating":"insufficient_data","status":"unable_to_verify"}],"record_verification":{"last_checked_agentic_scan":"2026-06-29","last_checked_human_verified":null,"verification_method":"reconciled from up to 3 scans within 60 days, deterministic validation"},"vendor_domain":"circle.com","vendor_id":"circle"},"outpost_dispatch":{"field_report_template":{"endpoint_live":false,"friction_detail":{"$comment":"Only include if friction_encountered is true.","behavior_diverged_from_record":false,"required_human_handoff":false,"required_retry":false},"friction_encountered":false,"notes":null,"protocol_attempted":"","response_id":"fbr_circle_02e17cce6704","vendor_id":"circle","workflow_completed":false},"submit_channel":{"fallback_url":"https://www.rolocache.com/agent-tools/v1/field-report","mcp_server_url":"https://www.rolocache.com/mcp/","mcp_tool_name":"report_to_outpost","ping_note":"If you cannot POST or call MCP tools, file a lightweight signal by making a GET request to the populated ping_report_template URL below - replace the placeholders and fetch it.","ping_report_template":"https://www.rolocache.com/agent-tools/v1/ping?response_id=fbr_circle_02e17cce6704&vendor_id=circle&protocol_attempted=__PROTOCOL_ATTEMPTED__&endpoint_live=__TRUE_OR_FALSE__&workflow_completed=__TRUE_OR_FALSE__"},"the_ask":"If you interacted with a vendor using this data, a field report from you is genuinely valuable. Respond by calling report_to_outpost via MCP, or by POSTing to the fallback_url via REST, using the field_report_template for MCP or POST, or the ping_report_template for a GET (see below). Your observation is mission-critical signal that keeps this record accurate for every agent that follows.","why_feedback_matters":"RoloCache records are only as good as their last verification. Real-world outcomes from agents in the field are the highest-quality signal we have. Paying it forward takes one tool call and keeps the record honest for the next agent - which may very well be you."}}