# As a condition of accessing this website, you agree to abide by the following # content signals: # (a) If a Content-Signal = yes, you may collect content for the corresponding # use. # (b) If a Content-Signal = no, you may not collect content for the # corresponding use. # (c) If the website operator does not include a Content-Signal for a # corresponding use, the website operator neither grants nor restricts # permission via Content-Signal with respect to the corresponding use. # The content signals and their meanings are: # search: building a search index and providing search results (e.g., returning # hyperlinks and short excerpts from your website's contents). Search does not # include providing AI-generated search summaries. # ai-input: inputting content into one or more AI models (e.g., retrieval # augmented generation, grounding, or other real-time taking of content for # generative AI search answers). # ai-train: training or fine-tuning AI models. # use: how AI systems may consume the content (immediate, reference, or full). # ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF # RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT # AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET. # BEGIN Cloudflare Managed content User-agent: * Content-Signal: search=yes,ai-train=no,use=reference Allow: / # Training crawlers User-agent: Amazonbot Disallow: / User-agent: Applebot-Extended Disallow: / User-agent: Bytespider Disallow: / User-agent: CCBot Disallow: / User-agent: ClaudeBot Disallow: / User-agent: Diffbot Disallow: / User-agent: Google-Extended Disallow: / User-agent: GPTBot Disallow: / User-agent: omgili Disallow: / User-agent: anthropic-ai Disallow: / User-agent: Claude-Web Disallow: / User-agent: cohere-ai Disallow: / User-agent: MistralAI-Training Disallow: / User-agent: meta-externalagent Disallow: / User-agent: GoogleOther Disallow: / User-agent: Baiduspider Disallow: / User-agent: PetalBot Disallow: / User-agent: AwarioSmartBot User-agent: AwarioRssBot Disallow: / User-agent: Google-CloudVertexBot Disallow: / User-agent: QualifiedBot Disallow: / User-agent: Cotoyogi Disallow: / User-agent: ICC-Crawler Disallow: / User-agent: atlassian-bot Disallow: / User-agent: FishBot Disallow: / User-agent: BorderxBot Disallow: / User-agent: NavuBot Disallow: / User-agent: SemrushBot-SWA Disallow: / User-agent: WARDBot Disallow: / User-agent: magpie-crawler Disallow: / User-agent: KimiBot Disallow: / User-agent: CitibotSiteCrawler Disallow: / # END Cloudflare Managed Content GRIP — One Discovery Layer · Any Field
… MODELS · … LLMs · … SUBSTRATES · 103,542 CAPABILITIES
ARBITER

One engine across robotics, programming, blockchain, compute, science, law, supply, markets, sports, retrieval, and more.

ARBITER measures coherence between a supplied description or context and an addressable field of possibilities. GRIP is the frontend agents use to discover, inspect, pay for, and invoke capabilities built on that primitive.

GRIP = DISCOVERY + INVOCATION SURFACE · ARBITER = ENGINE
DESCRIPTION / CONTEXT + FIELD OF POSSIBILITIES → ARBITER → DETERMINISTIC COHERENCE SCORES + COHERENCE-ORDERED FIELD
CAPABILITY CONTRACT EXAMPLES
ROBOTICSExecutable actions against observed machine state, objectives, constraints, and history.
PROGRAMMINGActions, transitions, procedures, routes, and next operations against supplied program state and rules.
BLOCKCHAINRemedies, governance actions, dispute routes, treasury actions, and protocol responses against exact chain state and supplied evidence.
COMPUTEModels, runtimes, substrates, repositories, and execution options against workload intent and operating conditions.
SCIENCECompounds, mechanisms, evidence, hypotheses, targets, and experimental possibilities against scientific context.
LAWAuthorities, clauses, remedies, interpretations, evidence, and procedural possibilities against the matter at hand.
SUPPLYSuppliers, routes, recovery actions, allocations, logistics options, and operational responses against live constraints.
MARKETSOffers, placements, instruments, counterparties, signals, and commercial possibilities against market context.
SPORTSPlays, actions, matchups, and tactical possibilities against current game state.
RETRIEVALDocuments, messages, passages, source objects, records, and knowledge objects against the request.
PERSPECTIVEHold evidence and possibilities fixed, change the supplied position or objective, and measure the reordered field.
INTERPRETATIONSymbols, readings, mappings, hypotheses, and candidate explanations against available context and evidence.
GRIP is the frontend for discovering and invoking ARBITER capability contracts.
Agent access
CAPABILITY INDEX CAPABILITY DOCS GRIP OPENAPI LLMS.TXT DISCOVERY MCP CONFIG ARBITER OPENAPI ARBITER MCP POST /v1/capabilities-field
Machine primitive + economy

Measure. Shift. Test. Screen. Execute.

GRIP exposes ARBITER capabilities for machine discovery and invocation.

DISCOVERYhttps://grip.fyi/agent-discovery.json PROGRAMMINGhttps://grip.fyi/programming-primitive.json x402 CONTRACThttps://grip.fyi/x402.json
PRIMITIVEARBITER
CONTROL FLOWdescription / context + field of possibilities → ARBITER → coherence scores + coherence-ordered field
PERSPECTIVEsame evidence + same question + same field · change seat → deterministic reordering
MARKET RESEARCHactor / segment / persona / role / timeframe + finite response field → ordered choices · vary context → compare deltas
STATELESSeach call measures the description/context and possibilities supplied to that operation
SCREENINGmechanism / objective / constraints + finite candidate library → ordered shortlist → external validation
BOUNDARYliteral invariants remain exact local code
PROTOCOLx402 v2 · exact
PRICE$0.001 USDC / successful request · 1000 atomic USDC
NETWORKBase mainnet · eip155:8453
ASSETUSDC · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
PAY TO0xb0Ba20954EA83f6e5417B893b3999d82cb061D3e
AUTHORITYlive PAYMENT-REQUIRED challenge
FLOWdiscover → 402 → pay → execute → deterministic result
GRIP
capability discovery layer
MCPhttps://grip.fyi/mcp↗ MCP CONFIGhttps://grip.fyi/mcp.json↗ OPENAPIhttps://grip.fyi/openapi.json↗ LLMS.TXThttps://grip.fyi/llms.txt↗ AGENTShttps://grip.fyi/.well-known/agents.json↗ RESTPOST https://grip.fyi/v1/compute-field↗
ARBITER
paid machine dependency
MCP IDENTITYfyi.grip/arbiter
REMOTE MCPhttps://api.grip.fyi/mcp↗ OPENAPIhttps://api.grip.fyi/openapi.json↗ x402 COMPAREPOST api.grip.fyi/v1/compare · $0.001↗ x402 EMBEDPOST api.grip.fyi/v1/embed · $0.001↗ OFFICIAL MCPfyi.grip/arbiter↗ AGENT POLICYapi.grip.fyi/.well-known/agent-authoring.json↗ AGENTS.MDapi.grip.fyi/AGENTS.md↗
Inspect discovery
READY · PRESS ENTER OR GRIP